Transmitter ZM-920PA/ZM-921PA ZM-930PA/ZM-931PA If you have any comments or suggestions on this manual, please contact us at: www.nihonkohden.
Copyright Notice The entire contents of this manual are copyrighted by Nihon Kohden. All rights are reserved. No part of this document may be reproduced, stored, or transmitted in any form or by any means (electronic, mechanical, photocopied, recorded, or otherwise) without the prior written permission of Nihon Kohden.
GENERAL HANDLING PRECAUTIONS This device is intended for use only by qualified medical personnel. Use only Nihon Kohden approved products with this device. Use of non-approved products or in a non-approved manner may affect the performance specifications of the device. This includes, but is not limited to, batteries, recording paper, pens, extension cables, electrode leads, input boxes and AC power. Please read these precautions thoroughly before attempting to operate the instrument. 1.
. During Operation (1) Both the instrument and the patient must receive continual, careful attention. (2) Turn power off or remove electrodes and/or transducers when necessary to assure the patient’s safety. (3) Avoid direct contact between the instrument housing and the patient. 5. To Shutdown After Use (1) Turn power off with all controls returned to their original positions. (2) Remove the cords gently; do not use force to remove them.
WARRANTY POLICY Nihon Kohden Corporation (NKC) shall warrant its products against all defects in materials and workmanship for one year from the date of delivery. However, consumable materials such as recording paper, ink, stylus and battery are excluded from the warranty.
EMC RELATED CAUTION This equipment and/or system complies with IEC 60601-2 International Standard for electromagnetic compatibility for medical electrical equipment and/or system. However, an electromagnetic environment that exceeds the limits or levels stipulated in IEC 60601-1-2, can cause harmful interference to the equipment and/or system or cause the equipment and/or system to fail to perform its intended function or degrade its intended performance.
5. Interference of lightning: When lightning occurs near the location where the equipment and/or system is installed, it may induce an excessive voltage in the equipment and/or system. In such a case, disconnect the AC power cord from the equipment and/or system and operate the equipment and/or system by battery power, or use an uninterruptible power supply. 6.
Conventions Used in this Manual and Instrument Warnings, Cautions and Notes Warnings, cautions and notes are used in this manual to alert or signal the reader to specific information. WARNING A warning alerts the user to the possible injury or death associated with the use or misuse of the instrument.
Explanations of the Symbols in this Manual and Instrument The following symbols found in this manual/instrument bear the respective descriptions as given.
Introduction The ZM-920PA/ZM-921PA/ZM-930PA/ZM-931PA transmitter transmits ECG and other data from a patient to a Nihon Kohden monitor for continuous monitoring. Available parameters and functions vary between the models. Read the operator’s manual for the monitor before operation. Model Parameters Functions The following information is indicated ZM-920PA • ECG by LED. ZM-921PA • Impedance respiration • Check ECG electrodes • Replace batteries The following information is indicated on LCD.
WARNING The following actions must be taken to properly receive the transmitter signal of the correct patient on the receiving instrument. Otherwise, there may be signal loss or signals may mix causing a serious accident, such as monitoring a different patient. • Assign a channel administrator in the hospital and only he or she should manage channel assignment. • The channel administrator must manage the channels in the facility so that there is no signal interference.
NOTE • To prevent interference between channels, assign a channel administrator in the hospital and only he or she should manage channel assignment. • Use Nihon Kohden parts and accessories to assure maximum performance from your instrument. • For stable signal reception, it is recommended to use a diversity antenna system on the receiving monitor.
Panel Description Top Panel For attaching a strap ZM-930PA/931PA only SpO2 socket Refer to the warnings below Connects to the SpO2 probe. Refer to the symbol page Refer to the symbol page Refer to the warnings below ECG/RESP socket Connects to the electrode lead for measuring ECG and/or respiration by the impedance method. WARNING When performing defibrillation, discharge as far as possible from electrodes, patches and any gel, cream or medicine on the chest of the patient.
Front Panel ZM-920PA/921PA Power switch Turns transmitter power on or off. Replace batteries LED Lights when the batteries need replacement. Check electrodes LED Lights when the electrode is detached from the patient. RA LA LL Va Vb USAch E002 1395.025 MHz Refer to the warning below. CALL key When this key is pressed, a “peep” sounds at the transmitter, and “CALL” message appears at the monitor. Depending on the settings on the monitor, an ECG waveform is recorded when this key is pressed.
ZM-930PA/931PA For the descriptions except for the LCD, refer to the “ZM-920PA/921PA” section on the previous page. RA LA LL Va Vb USAch E002 1395.025 MHz LCD %SpO2: Battery replacement mark: Appears when the batteries are weak. Immediately replace the batteries when this appears. Displayed when the power is turned on. This indication is not displayed when SpO2 display is turned off. Pulse level bar graph: Displays pulse level in 7 steps. SpO2 data: Displays SpO2 data.
Important Safety Information General WARNING Never use the transmitter in the presence of any flammable anesthetic gas or high concentration oxygen atmosphere. Failure to follow this warning may cause explosion or fire. WARNING Never use the transmitter in a hyperbaric oxygen chamber. Failure to follow this warning may cause explosion or fire. WARNING Do not take this transmitter into the MRI test room. This transmitter is not designed to be used during MRI tests.
WARNING Before defibrillation, all persons must keep clear of the bed and must not touch the patient or any equipment or cord connected to the patient. Failure to follow this warning may cause electrical shock or injury. WARNING When the transmitter is used with an electrosurgical unit (ESU), firmly attach the entire area of the ESU return plate. Otherwise, the current from the ESU flows into the electrodes of the transmitter, causing electrical burn where the electrodes are attached.
CAUTION Only use Nihon Kohden specified electrodes, electrode leads and SpO2 probes. Otherwise, the maximum performance from the transmitter cannot be guaranteed. CAUTION Do not reuse disposable parts and accessories. CAUTION Do not shake or swing the transmitter while holding the leads or cables connected to the transmitter. The transmitter may come off and injure someone or damage surrounding instruments. CAUTION Attach a strap to the transmitter to prevent the transmtiter from falling.
CAUTION • Do not use the same channel for different patients. If the same channel is used for two patients, the two patients’ data will be lost due to mutual modulation interference, or another patient’s data may appear on the receiving monitor screen. • Do not use transmitters of adjacent channels in a hospital. If a transmitter of an adjacent channel is used, radio waves from one transmitter affect the receiver of the adjacent channel’s transmitter and there may be interference.
CAUTION The battery charger must be used outside the patient environment. CAUTION Refer to the battery and battery charger manuals for details on handling the batteries. Transmitter Channel Management WARNING The following actions must be taken to properly receive the transmitter signal of the correct patient on the receiving instrument. Otherwise, there may be signal loss or signals may mix causing a serious accident, such as monitoring a different patient.
For Patients Using Implantable Pacemaker WARNING Interaction Between Minute Ventilation Rate-Adaptive Pacemakers and Cardiac Monitoring and Diagnostic Equipment The bioelectric impedance measurement sensor of a minute ventilation rate-adaptive implantable pacemaker may be affected by transmitter which is connected to the same patient. If this occurs, the pacemaker may pace at its maximum rate and the transmitter may give incorrect data to the monitor.
ECG Monitoring CAUTION Only use Nihon Kohden specified electrodes and electrode leads. When other type of electrodes or electrode leads are used, the “CHECK ELECTRODES” message may be displayed and monitoring may stop. CAUTION When the “ELECTRODE OFF” or “CHECK ELECTRODE” message is displayed on the receiving monitor, ECG is not monitored properly and the ECG alarm does not function. Check the electrode, electrode leads, and if necessary, replace with new ones.
WARNING Check the circulation condition by observing the skin color at the measurement site and pulse waveform. Change the measurement site every 8 hours for disposable probes and every 4 hours for reusable probes (every 8 hours for TL-630T/TL-631T series probe). The skin temperature may increase at the attached site by 2 or 3°C (4 or 5°F) and cause a burn or pressure necrosis.
WARNING • When using the TL-201T finger probe, do not fasten the probe and cable to the finger by wrapping with tape. This may cause burn, congestion or pressure necrosis from poor blood circulation. • When using probes other than the TL-201T finger probe, to avoid poor circulation, do not wrap the tape too tight. Check the blood circulation condition by observing the skin color and congestion at the skin peripheral to the probe attachment site.
CAUTION Do not use a probe which is deteriorated by aging. Accurate measurement cannot be performed. CAUTION Do not use a damaged or disassembled probe. It causes incorrect measurement and may injure the patient. CAUTION The disposable probe is not sterilized. Use the disposable probe only for a single patient. Never reuse the disposable probe for another patient because it causes cross infection.
CAUTION When a message indicates a faulty probe, stop monitoring and replace the probe with a new one. CAUTION When any of the following conditions occurs, the probe may be broken. Replace it with a new one. • The transmitter generates “pip” sounds. • SpO2 data is 85% and blinking. CAUTION Neonatal skin is delicate. Remove the probe and tape carefully and slowly. CAUTION When removing a probe that is taped to the skin, do not pull the probe cable because this can damage the cable.
Maintenance CAUTION If detergent or liquid spills into the transmitter, clean it and dry it completely before use. If a wet transmitter is used, the transmitter may malfunction or get damaged. CAUTION Never disassemble or repair the transmitter. Disassembly and repair must be performed by qualified service personnel. CAUTION Before cleaning or disinfection, remove the batteries from the transmitter. Failure to follow this instruction may result in electrical shock or transmitter malfunction.
Preparation Installing (Replacing) Batteries Use two AA(R6) type alkaline dry cell batteries, manganese dry cell batteries, NiCd rechargeable batteries or NiMH batteries. Battery Lifetime With new alkaline batteries, the transmitter can continuously measure for the following number of days. Operation time depends on the thickness of the SpO2 probe attachment site. Transmitter ZM-920PA/930PA ZM-921PA/931PA Operating time (Measuring parameters) ECG, Resp, SpO2 ECG, Resp 3 days 4 days 2.5 days 3.
If electrode leads are attached to the patient and the person replacing the batteries touches the patient, the patient leakage current over the amount allowed may occur. CAUTION • Replace all batteries at the same time. • Do not use different types of batteries together. NOTE Insert the batteries with the correct polarity (+ and −). Procedure 1. Open the battery case cover. 1 3 2 2. Insert two dry cell batteries (LR6) into the battery case observing the correct polarity. 3.
WARNING If the battery is damaged and the substance inside the battery contacts the eyes or skin, wash immediately and thoroughly with water and see a physician. Never rub your eyes, because you may lose your eyesight. CAUTION Do not handle the batteries with wet hands. CAUTION When the transmitter is not in use, remove batteries. When batteries are installed, battery power is consumed even if measurement is not performed.
Situations Requiring Battery Replacement Replace the batteries when any of the following occurs. • The “ ” LED lights (ZM-920PA/921PA) or the “ ” mark is displayed on the LCD (ZM-930PA/931PA) on the transmitter. • The transmitter generates a constant alarm (continuous “peep” sound). • The monitor displays the battery replacement message on the screen. • When the power of the LCD transmitter is turned on, no message or icon is displayed. (Only the ZM-930PA/931PA).
If the transmitter falls off, the battery cover may be opened. If the patient touches the terminals of the batteries, patient leakage current over the allowable amount can occur. Turning On/Off the Transmitter Check Items Before Turning On the Power To use the instrument in a safe and optimum condition, before turning on the transmitter power switch, check the following. Appearance • There is no damage or dirt on the outside of the transmitter.
Check Items After Turning On the Power After turning on the power, check the following items. Power On • The power switch is not damaged. • The transmitter generates a “peep” sound for about one second. • All LEDs light and values are displayed on the LCD for about one second. • The transmitter does not generate a continuous “pip” sound. • The transmitter does not liberate excessive heat. • The “ ” LED does not light or the “ ” mark is not displayed on the LCD.
ECG Monitoring When 6 leads are used on this transmitter, up to 8 lead (I, II, III, aVR, aVL, aVF, Va and Vb) of ECG waveforms can be displayed on the receiving monitor. The heart rate is also measured. When 3 leads are used, one channel ECG waveform of lead II can be displayed on the receiving monitor. Refer to the operator’s manual of the monitor for details.
WARNING When the transmitter is used with an electrosurgical unit (ESU), firmly attach the entire area of the ESU return plate. Otherwise, the current from the ESU flows into the electrodes of the transmitter, causing electrical burn where the electrodes are attached. For details, refer to the ESU manual. NOTE • This transmitter is not protected against noise generated from an electrosurgical unit.
Selecting Electrode Lead and Disposable Electrode CAUTION Only use Nihon Kohden specified electrodes and electrode leads. When other type of electrodes or electrode leads are used, the “CHECK ELECTRODES” message may be displayed and monitoring may stop.
Connecting the Electrode Lead to the Transmitter Connect the electrode lead to the ECG/RESP socket on the transmitter. CAUTION Do not shake or swing the transmitter while holding the leads or cables connected to the transmitter. The transmitter may come off and injure someone or damage surrounding instruments. CAUTION Hold the connector of the electrode lead when connecting/ disconnecting the electrode lead. If you disconnect the electrode lead by pulling the lead, it damages the electrode lead.
Six Electrodes Electrode Position The 6-electrode method with lead II and lead V5 is effective for monitoring myocardial ischemia. You can improve monitoring accuracy considerably by adding lead V4 to this combination. Va and Vb can be at any position of the standard 12 leads V1 to V6, but V4 and V5 are most appropriate for myocardial ischemic monitoring.
Lead Position Standard limb leads Lead I RA Lead II LA Lead III RA LL N (RL) Monopolar limb leads aVR lead N (RL) aVL lead aVF lead RA LA RA LA N (RL) N (RL) LA LL LL LL LA LL LL N (RL) RA RA LA N (RL) Monopolar chest leads V1 to V6 leads to LA RA LL N (RL) When Using 4 to 6 DIN Type Leads to Monitor 6 Lead ECG ON RA LA LL Va Vb USAch E002 1395.0250 MHz CALL key When the BR-906PA/916PA electrode leads are not used, the transmitter is fixed to 3 lead ECG monitoring.
Three Electrodes By using the optional BR-913PA/903PA electrode lead, 3 lead ECG monitoring is available. Electrode Position • Lead MII, which is similar to standard lead II, used when ECG measurement has priority Electrode Position Symbol Lead Color Left infraclavicular fossa LA (N) Black Right infraclavicular fossa RA (−) White Below lowest rib on the LL (+) Red left anterior axillary line • Lead MI, which is similar to standard lead I Change LL and LA of the lead MII.
Connecting the Electrode Lead and Disposable Electrodes Preparing the Patient Skin Shave off excessive body hair. To reduce skin impedance, clean the electrode site with cream or with a cotton pad moistened with the electrode site with cream or with a cotton pad moistened with alcohol. Thoroughly dry the skin with a clean cotton pad. NOTE • For a patient with frequent body movement, rub the sites with Skinpure skin preparation gel. However, do not use Skinpure skin preparation gel for sensitive skin.
2. Carefully remove the backing paper from the electrode. Avoid touching the adhesive surface. 3. Place the electrode on the previously cleaned skin. Pay attention to the electrode lead color and symbol. 4. Fasten the electrode lead wire with surgical tape with an extra length of wire between the tape and the electrode. This lessens the movement of electrode leads by body movement and helps stable monitoring.
Respiration Monitoring Respiration is monitored by measuring changes in impedance between the RA and LL ECG electrodes. This transmitter sends the changes in impedance to the monitor as a respiration waveform. The monitor displays the respiration waveform and calculates respiration rate. Refer to the operator’s manual of the monitor for details.
Respiration Measurement Procedure 1. Select the electrode lead and disposable electrodes. 2. Connect the electrode lead to the ECG/RESP socket. 3. Connect disposable electrodes to the electrode lead and attach electrodes to the patient. After steps 1 to 3 are finished, respiration monitoring automatically starts. Electrode Position for Respiration Monitoring Place the RA and LL electrodes so that the lungs are between the electrodes.
Position 2 In this position, the waveform amplitude is usually large and the ECG lead is similar to Lead MII. This position can be generally recommended. RA Right infraclavicular fossa LL Fifth intercostal space on the left midaxillary line, V6 Position 3 In this position, the respiration waveform is optimum, but the ECG lead is unusual.
SpO2 Monitoring The SpO2 monitoring is only available on the ZM-930PA/931PA transmitter. This transmitter sends SpO2 and pulse waveform to the monitor and displays SpO2 data and pulse level bar graph on the LCD. Refer to the operator’s manual of the monitor for details. WARNING SpO2 measurement may be incorrect in the following cases. • When the patient’s carboxyhemoglobin or methemoglobin increases abnormally. • When dye is injected in the blood. • When using an electrosurgical unit. • During CPR.
WARNING Check the circulation condition by observing the skin color at the measurement site and pulse waveform. Change the measurement site every 8 hours for disposable probes and every 4 hours for reusable probes (every 8 hours for TL-630T/TL-631T series probe). The skin temperature may increase at the attached site by 2 or 3°C (4 or 5°F) and cause a burn or pressure necrosis.
CAUTION Do not pull or bend the probe cable, and do not put caster feet on the probe cable. Do not immerse the probe cable in chemical solutions or water. Failure to follow these instructions may cause cable discontinuity, short circuit, skin burn on the patient and incorrect measurement data. Replace any broken probe with a new one.
Measurement Procedure 1. Select the SpO2 probe. 2. Connect the SpO2 probe to the SpO2 socket. 3. Attach the SpO2 probe to the patient. After steps 1 to 3 are finished, SpO2 monitoring automatically starts. Selecting SpO2 Probe Select an appropriate probe for the patient. CAUTION Only use Nihon Kohden specified electrodes, electrode leads and SpO2 probes. Otherwise, the maximum performance from the transmitter cannot be guaranteed. CAUTION Do not use a damaged or disassembled probe.
Reusable Probes When using a TL-201T finger probe, choose the appropriate cable length for attachment.
Disposable Probes CAUTION The disposable probe is not sterilized. Use the disposable probe only for a single patient. Never reuse the disposable probe for another patient because it causes cross infection.
Model TL-061S/062S Subject (Weight) Attachment Site Adult, child Finger (15 to 50 kg) Child, infant (3 to 15 kg) Cable length TL-061S: 80 cm TL-062S: 160 cm TL-271T/271T3 Cable length TL-271T: 80 cm TL-271T3: 160 cm TL-272T/272T3 Cable length TL-272T: 80 cm TL-272T3: 160 cm TL-273T/273T3 Cable length TL-273T: 80 cm TL-273T3: 160 cm Toe Adult (30 kg or more) Child (10 to 50 kg) Finger or toe Neonate (3 kg or less) Instep and sole Adult (40 kg or more) Finger or toe Operator’s Manual ZM-920PA/92
Model TL-274T/274T3 Subject (Weight) Attachment Site Infant Finger or toe (3 to 20 kg) Cable length TL-274T: 80 m TL-274T3: 160 cm Connecting SpO2 Probe to the Transmitter Connect the probe to the SpO2 socket on the transmitter. CAUTION Do not shake or swing the transmitter while holding the leads or cables connected to the transmitter. The transmitter may come off and injure someone or damage surrounding instruments. CAUTION Hold the connector when connecting/disconnecting the SpO2 probe.
Attaching the Probe to the Patient For details, refer to the operator’s manual of each probe. WARNING • When using the TL-201T finger probe, do not fasten the probe and cable to the finger by wrapping with tape. This may cause burn, congestion or pressure necrosis from poor blood circulation. • When using probes other than the TL-201T finger probe, to avoid poor circulation, do not wrap the tape too tight.
CAUTION If the attachment site is dirty with blood or bodily fluids, clean the attachment site before attaching the probe. If there is nail polish on the attachment site, remove the polish. Otherwise, the amount of transmitted light decreases, and measured value may be incorrect or measurement cannot be performed. CAUTION If the skin gets irritated or redness appears on the skin from the probe, change the attachment site or stop using the probe. Take extreme care for the patients with delicate skin.
CAUTION When removing the probe from the attachment tape, do not pull the sensor cable because this can damage the cable. CAUTION Do not immerse the disposable probe in detergents or water. If the probe adhesive surface gets wet, adhesiveness becomes weak and the probe cannot be attached to the skin. CAUTION Refer to the probe instruction manual for details.
Turning SpO2 Data and Pulse Level Bar Graph Display On/Off You can turn off the display of SpO2 data and pulse level bar graph on the LCD. SpO2 display off Press the CALL key for more than 3 seconds within 10 seconds after turning transmitter power on (after a “peep” sound). RA LA LL Va Vb USAch E002 1395.025 MHz CALL key “%SpO2” is not displayed. When SpO2 monitoring starts, SpO2 data and pulse level bar graph are not displayed on the LCD.
Detecting and Displaying Measurement Condition External Light Noise Alarm CAUTION Normal external light does not affect monitoring but strong light such as a surgical light or sunlight may affect monitoring. If affected, cover the measuring site with a blanket. Strong external light (surgical light or inverter type fluorescent lamp, etc.), may affect SpO2 monitoring. When external light is too strong to correctly measure SpO2, the transmitter generates an alarm tone (“pip” sound every 0.5 seconds).
When Measurement Condition is Unstable SpO2 data blinks every 1 second when SpO2 signal stability decreases and the transmitter cannot detect correct pulse waveform because of patient body movement, poor attachment condition or poor circulation condition at the probe attachment site. CAUTION SpO2 data blinking every second indicates an unstable pulse waveform and displayed SpO2 value may be inaccurate. The displayed data might not reflect sudden SpO2 changes.
Alarm List (1) (5) %SpO2 indication Displayed as LED on ZM-920PA/921PA (4) pulse level bar graph (2) RA LA LL Va Vb Sound Single “peep” sound for 4 s --- Continuous “peep” sound --- Intermittent “pip” sound every 0.5 s Display --- (1) All lights are off (2) --- (3) SpO2 data Cause Countermeasure The CALL key is pressed. The sound lasts while the key is pressed. The battery voltage decreases and battery charge is almost zero. Battery is completely discharged.
Sound Intermittent “peep” sound every 1 s Intermittent “pip” sound every 0.25 s --- Display (3) (4) all lit (5) blinking Cause Cannot receive sufficient light from the probe photo emitter. (3) 85%, blinking Broken probe (3) blinking Patient body movement Probe is not attached securely. 52 Countermeasure Attach probe to a site with 6 to 14 mm thickness where sufficient light can be received. Replace the probe with a new one.
Troubleshooting If the problem still remains after checking the following, contact your Nihon Kohden representative. Problem The power cannot be turned on. Cause Countermeasure Batteries are not Install the batteries correctly. installed correctly. The battery polarity is wrong. Batteries are completely discharged. Replace the batteries with new ones. Nothing is displayed on the LCD after turning the power on. (ZM-930PA/ 931PA only) SpO2 display is turned Turn off the power, and turn on the off.
Problem Cause 3 electrode leads are The transmitter properly attached to the is fixed to 6 lead patient but LEDs light. monitoring. Countermeasure Turn off and on the transmitter power. Heart������������� rate of the patient who is using an electric blanket cannot be monitored on the receiving monitor. Pacing pulse detection Turn off the pacing pulse detection. is set to ON on the monitor. ECG baseline is thick. (Hum is overlapping) The gel on the electrode is dried out.
Changing the Transmitter Channel The transmitter channel can be changed by the QI-901PK Channel Writer. To change the channel number, refer to the channel writer manual. WARNING The following actions must be taken to properly receive the transmitter signal of the correct patient on the receiving instrument. Otherwise, there may be signal loss or signals may mix causing a serious accident, such as monitoring a different patient.
Lifetime and Disposal Disposing of Used Batteries Replacement When the “ ” LED is lit or the “ ” is displayed on the LCD during operation, the batteries are running out. Replace the batteries with new ones. When using rechargeable batteries, recharge them. Disposal Before disposing of the batteries, check with your local solid waste officials for details in your area for proper disposal. It may be illegal to dispose of these batteries in the municipal waste stream.
Cleaning, Disinfection and Sterilization Transmitter and Electrode Lead CAUTION If detergent or liquid spills into the transmitter, clean it and dry it completely before use. If a wet transmitter is used, the transmitter may malfunction or get damaged. CAUTION Before cleaning or disinfection, remove the batteries from the transmitter. Failure to follow this instruction may result in electrical shock or transmitter malfunction. CAUTION The transmitter cannot be sterilized.
Disinfection CAUTION • Do not immerse the electrode lead connector in liquid. • Do not disinfect with hypochlorous acid. • Use the recommended concentration. Wipe the outside surface of the transmitter and electrode lead with a non-abrasive cloth moistened with any of the disinfectants listed on the next page. Use the recommended concentration.
Replacing the Battery Case Cover When the battery case cover is damaged, replace it with a new one. Battery case cover, code no. 6113-046365C. Other than the battery case cover, there are no serviceable parts for the transmitter. Repair Parts Availability Policy Nihon Kohden Corporation (NKC) shall stock repair parts (parts necessary to maintain the performance of the instrument) for a period of 6 years after NKC announces discontinuation of the instrument.
Specifications ZM-920PA/930PA ECG measurement Channels: Input range: DC offset: Input impedance: Pacing pulse detection: 4 ±5 mV or more ±500 mV or more 5 MΩ or more (5 Hz) ANSI/AAMI EC13 Based upon Pacemaker pulse rejection Capability Respiration measurement Measuring method: Impedance range: Impedance method 0 to 2 kΩ SpO2 measurement Measuring range: 0 to 100%, in 1% steps Measuring accuracy When the measuring accuracy of the SpO2 probe is not considered: ±1 digit (80% ≤ SpO2 ≤ 100%) ±2 digit (50% ≤
Antenna: Transmission channel: Transmission frequency range: Channel spacing: Modulation scheme: Occupied bandwidth: Effective radiated power: ECG electrode lead Indicated on the transmitter 608.0250 to 613.9750 MHz 50 kHz or 37.5 kHz (12.5 kHz when interleaved) FSK (Frequency Shift Keying) <20 kHz 1.0 mW (conducted) Safety standards Safety standard: CSA C22.2 No.
Power requirements Battery type: Battery lifetime: ZM-930PA: ZM-920PA: two AA type alkaline dry cell batteries, manganese dry cell batteries, NiCd rechargeable batteries, NiMH batteries approximately 3 days (with alkaline batteries, measuring ECG, respiration and SpO2 of approximately 60 kg weight adult male patient at the pointing finger) approximately 4 days (with alkaline batteries, measuring ECG and respiration only) approximately 4 days Environment Operating environment Operating temperature: Opera
ZM-921PA/931PA ECG Measurement Channels: Input range: DC offset: Input impedance: Pacing pulse detection: 4 ±5 mV or more ±500 mV or more 5 MΩ or more (5 Hz) ANSI/AAMI EC13 Based upon Pacemaker pulse rejection Capability Respiration Measurement Measuring method: Impedance range: Impedance method 0 to 2 kΩ SpO2 Measurement Measuring range: 0 to 100%, in 1% steps Measuring accuracy When the measuring accuracy of the SpO2 probe is not considered: ±1 digit (80% ≤ SpO2 ≤ 100%) ±2 digit (50% ≤ SpO2 ≤ 80%) Les
Channel spacing: Modulation scheme: Occupied bandwidth: Effective radiated power: 50 kHz or 37.5 kHz (12.5 kHz when interleaved) FSK (Frequency Shift Keying) <20 kHz 5.0 mW (factory default setting) Can be changed to 1.0 mW if required Safety Standards Safety standard: CAN/CSA-C22.2 No. 601-1 M90: 1990 CAN/CSA-C22.2 No. 601-1. 1S1-94: 1994 CAN/CSA-C22.2 No. 601-1. 1B-90: R2002 CAN/CSA-C22.2 No. 60601-2-49-04: 2004 CAN/CSA-C22.2 No. 601.2.
Water Resistance Water does not get inside the transmitter except for the battery case when immersed in water up to 30 cm deep for 3 minutes. Power Requirements Battery type: Battery lifetime: ZM-931PA: ZM-921PA: two AA type alkaline dry cell batteries, manganese dry cell batteries, NiCd rechargeable batteries, NiMH batteries approximately 2.5 days (with alkaline batteries, measuring ECG, respiration and SpO2 of approximately 60 kg weight adult male patient at the pointing finger) approximately 3.
Electromagnetic Compatibility IEC 60601-1-2: 2001 IEC 60601-1-2 Amendment 1: 2004 Electromagnetic Emissions This Model ZM-921PA/931PA is intended for use in the electromagnetic environment specified below. The customer or the user of the ZM-921PA/931PA should assure that it is used in such an environment.
Immunity test IEC 60601 test level Compliance level Electrical fast transient/ burst IEC 61000-4-4 ±2 kV for power supply lines ±1 kV for input/ output lines Surge IEC 61000-4-5 ±1 kV differential Not applicable mode ±2 kV common mode <5% UT (>95% dip Not applicable in UT) for 0.
Immunity test IEC 60601 Compliance Electromagnetic environment test level level - guidance Portable and mobile RF communications equipment should be used no closer to any part of the ZM921PA/931PA, including cables, than the recommended separation distance calculated from the equation applicable to the frequency of the transmitter. Recommended separation distance Conducted RF 3 Vrms IEC 61000-4-6 3 Vrms d = 1.2√P Radiated RF 3 V/m IEC 61000-4-3 80 MHz to 2.5 GHz 3 V/m 80 MHz to 2.5 GHz d = 1.
Immunity test IEC 60601 Compliance Electromagnetic environment test level level - guidance NOTE 1: At 80 MHz and 800 MHz, the higher frequency range applies. NOTE 2: These guidelines may not apply in all situations. Electromagnetic propagation is affected by absorption and reflection from structures, objects and people.
Recommended Separation Distances between Portable and Mobile RF Communications Equipment The ZM-921PA/931PA is intended for use in an electromagnetic environment in which radiated RF disturbances are controlled.
System Composition for EMC Test The ZM-921PA/931PA bedside monitor is tested to comply with IEC 60601-1-2: 2001 and IEC 60601-1-2 Amendment 1: 2004 with the following composition. Units Cable length ZM-921PA/931PA transmitter — BR-906P ECG electrode lead 0.8 m TL-201T finger probe 1.
Standard Accessories Name Strap 72 Q’ty 1 Supply code Y233 Operator’s Manual ZM-920PA/921PA/930PA/931PA
Options CAUTION Use only Nihon Kohden electrodes, electrode leads and SpO2 probes to assure maximum performance from your instrument.
SpO2 Cable length 0.6 m 1.6 m 1.6 m 0.6 m 1.6 m 0.6 m 1.
Transmission Frequencies Channel: 9002 to 9478 Transmission frequency (MHz) Channel No. Transmission frequency (MHz) Channel No. Transmission frequency (MHz) Channel No. 608.0250 608.0375 608.0500 608.0625 608.0750 608.0875 9002 9003 9004 9005 9006 9007 9008 608.3500 608.3625 608.3750 608.3875 608.4000 608.4125 608.4250 9028 9029 9030 9031 9032 9033 9034 608.6750 608.6875 608.7000 608.7125 608.7250 608.7375 9054 9055 9056 9057 9058 9059 608.1000 608.1125 608.1250 608.1375 608.1500 608.1625 608.
Transmission frequency (MHz) Channel No. 609.0000 609.0125 609.0250 609.0375 609.0500 609.0625 609.0750 609.0875 609.1000 609.1125 609.1250 609.1375 609.1500 609.1625 609.1750 609.1875 609.2000 609.2125 609.2250 609.2375 609.2500 76 Transmission frequency (MHz) Channel No. Transmission frequency (MHz) Channel No. 9080 9081 9082 9083 9084 9085 9086 9087 9088 9089 9090 9091 9092 9093 9094 9095 9096 9097 9098 9099 9100 609.3750 609.3875 609.4000 609.4125 609.4250 609.4375 609.4500 609.4625 609.
Transmission frequency (MHz) Channel No. Transmission frequency (MHz) Channel No. Transmission frequency (MHz) Channel No. 610.1250 610.1375 610.1500 9170 9171 9172 610.5000 610.5125 9200 9201 610.8750 610.8875 9230 9231 610.5250 9202 610.9000 9232 610.1625 610.1750 610.1875 610.2000 610.2125 9173 9174 9175 9176 9177 9233 9234 9235 9236 9237 9178 9203 9204 9205 9206 9207 9208 610.9125 610.9250 610.9375 610.9500 610.9625 610.2250 610.5375 610.5500 610.5625 610.5750 610.5875 610.
Transmission frequency (MHz) Channel No. 611.2500 611.2625 611.2750 611.2875 611.3000 611.3125 611.3250 611.3375 611.3500 611.3625 611.3750 611.3875 611.4000 611.4125 611.4250 611.4375 611.4500 611.4625 611.4750 611.4875 611.5000 78 Transmission frequency (MHz) Channel No. Transmission frequency (MHz) Channel No. 9260 9261 9262 9263 9264 9265 9266 9267 9268 9269 9270 9271 9272 9273 9274 9275 9276 9277 9278 9279 9280 611.6250 611.6375 611.6500 611.6625 611.6750 611.6875 611.7000 611.7125 611.
Transmission frequency (MHz) Channel No. Transmission frequency (MHz) Channel No. Transmission frequency (MHz) Channel No. 612.3750 612.3875 612.4000 9350 9351 9352 612.7500 612.7625 9380 9381 613.1250 613.1375 9410 9411 612.7750 9382 613.1500 9412 612.4125 612.4250 612.4375 612.4500 612.4625 9353 9354 9355 9356 9357 9413 9414 9415 9416 9417 9358 9383 9384 9385 9386 9387 9388 613.1625 613.1750 613.1875 613.2000 613.2125 612.4750 612.7875 612.8000 612.8125 612.8250 612.8375 612.
Transmission frequency (MHz) Channel No. 613.5000 613.5125 613.5250 80 Transmission frequency (MHz) Channel No. Transmission frequency (MHz) Channel No. 9440 9441 9442 613.6625 613.6750 9453 9454 613.8250 613.8375 9466 9467 613.6875 9455 613.8500 9468 613.5375 613.5500 613.5625 613.5750 9443 9444 9445 9446 9469 9470 9471 9472 9447 9456 9457 9458 9459 9460 613.8625 613.8750 613.8875 613.9000 613.5875 613.7000 613.7125 613.7250 613.7375 613.7500 613.9125 9473 613.6000 613.6125 613.
Channel: E002 to E398 Transmission Transmission Transmission Channel Channel Channel frequency frequency frequency No. No. No. (MHz) (MHz) (MHz) 1395.0250 1395.0375 1395.0500 1395.0625 1395.0750 1395.0875 1395.1000 1395.1125 E002 E003 E004 E005 E006 E007 E008 E009 1395.3875 1395.4000 1395.4125 1395.4250 1395.4375 1395.4500 1395.4625 1395.4750 E031 E032 E033 E034 E035 E036 E037 E038 1395.1250 1395.1375 1395.1500 1395.1625 1395.1750 1395.1875 1395.2000 1395.2125 1395.2250 1395.2375 1395.2500 1395.
Transmission Transmission Transmission Channel Channel Channel frequency frequency frequency No. No. No. (MHz) (MHz) (MHz) 1396.1125 1396.1250 1396.1375 1396.1500 1396.1625 1396.1750 1396.1875 1396.2000 1396.2125 1396.2250 1396.2375 1396.2500 1396.2625 1396.2750 1396.2875 1396.3000 1396.3125 1396.3250 1396.3375 1396.3500 1396.3625 1396.3750 1396.3875 1396.4000 1396.4125 1396.4250 1396.4375 1396.4500 1396.4625 1396.
Transmission Transmission Transmission Channel Channel Channel frequency frequency frequency No. No. No. (MHz) (MHz) (MHz) 1397.2375 1397.2500 1397.2625 1397.2750 1397.2875 1397.3000 1397.3125 1397.3250 1397.3375 1397.3500 1397.3625 1397.3750 1397.3875 1397.4000 1397.4125 1397.4250 1397.4375 1397.4500 1397.4625 1397.4750 1397.4875 1397.5000 1397.5125 1397.5250 1397.5375 1397.5500 1397.5625 1397.5750 1397.5875 1397.
Transmission Transmission Transmission Channel Channel Channel frequency frequency frequency No. No. No. (MHz) (MHz) (MHz) 84 1398.3625 1398.3750 1398.3875 1398.4000 1398.4125 1398.4250 1398.4375 1398.4500 1398.4625 1398.4750 1398.4875 1398.5000 1398.5125 1398.5250 1398.5375 1398.5500 1398.5625 1398.5750 1398.5875 1398.6000 1398.6125 1398.6250 1398.6375 1398.6500 E269 E270 E271 E272 E273 E274 E275 E276 E277 E278 E279 E280 E281 E282 E283 E284 E285 E286 E287 E288 E289 E290 E291 E292 1398.6625 1398.
Transmission Transmission Transmission Channel Channel Channel frequency frequency frequency No. No. No. (MHz) (MHz) (MHz) 1399.4875 1399.5000 1399.5125 1399.5250 1399.5375 1399.5500 1399.5625 1399.5750 1399.5875 1399.6000 1399.6125 1399.6250 1399.6375 1399.6500 E359 E360 E361 E362 E363 E364 E365 E366 E367 E368 E369 E370 E371 E372 1399.6625 1399.6750 1399.6875 1399.7000 1399.7125 1399.7250 1399.7375 1399.7500 1399.7625 1399.7750 1399.7875 1399.8000 1399.8125 1399.
Channel: E502 to E898 Transmission Transmission Transmission Channel Channel Channel frequency frequency frequency No. No. No. (MHz) (MHz) (MHz) 1427.0250 1427.0375 1427.0500 1427.0625 1427.0750 1427.0875 1427.1000 1427.1125 1427.1250 1427.1375 1427.1500 1427.1625 1427.1750 1427.1875 1427.2000 1427.2125 1427.2250 1427.2375 1427.2500 1427.2625 1427.2750 1427.2875 1427.3000 1427.3125 1427.3250 1427.3375 1427.3500 1427.3625 1427.
Transmission Transmission Transmission Channel Channel Channel frequency frequency frequency No. No. No. (MHz) (MHz) (MHz) 1428.1125 1428.1250 1428.1375 1428.1500 E589 E590 E591 E592 1428.4875 1428.5000 1428.5125 1428.5250 E619 E620 E621 E622 1428.8625 1428.8750 1428.8875 1428.9000 E649 E650 E651 E652 1428.1625 E593 1428.5375 E623 1428.9125 E653 1428.1750 1428.1875 1428.2000 1428.2125 1428.2250 1428.2375 1428.2500 1428.2625 1428.2750 1428.
Transmission Transmission Transmission Channel Channel Channel frequency frequency frequency No. No. No. (MHz) (MHz) (MHz) 1429.2375 1429.2500 1429.2625 1429.2750 1429.2875 1429.3000 1429.3125 1429.3250 1429.3375 1429.3500 1429.3625 1429.3750 1429.3875 1429.4000 1429.4125 1429.4250 1429.4375 1429.4500 1429.4625 1429.4750 1429.4875 1429.5000 1429.5125 1429.5250 1429.5375 1429.5500 1429.5625 1429.5750 1429.5875 1429.
Transmission Transmission Transmission Channel Channel Channel frequency frequency frequency No. No. No. (MHz) (MHz) (MHz) 1430.3625 1430.3750 1430.3875 1430.4000 1430.4125 1430.4250 1430.4375 1430.4500 1430.4625 1430.4750 1430.4875 1430.5000 1430.5125 1430.5250 1430.5375 1430.5500 1430.5625 1430.5750 1430.5875 1430.6000 1430.6125 1430.6250 1430.6375 1430.6500 1430.6625 1430.6750 1430.6875 1430.7000 1430.7125 1430.
Transmission Transmission Transmission Channel Channel Channel frequency frequency frequency No. No. No. (MHz) (MHz) (MHz) 1431.4875 1431.5000 1431.5125 1431.5250 1431.5375 1431.5500 1431.5625 1431.5750 1431.5875 1431.6000 1431.6125 1431.6250 1431.6375 1431.6500 90 E859 E860 E861 E862 E863 E864 E865 E866 E867 E868 E869 E870 E871 E872 1431.6625 1431.6750 1431.6875 1431.7000 1431.7125 1431.7250 1431.7375 1431.7500 1431.7625 1431.7750 1431.7875 1431.8000 1431.8125 1431.
