Digital Multimeter Model No.: MSR-A1000 Questions or Concerns? support@etekcity.
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Table of Contents Package Contents Safety Information • Electrical Symbols Multimeter Features • Display Symbols • Button Functions Operation • General Use • DC/AC Voltage Measurement • Resistance Measurement • Continuity Measurement • Diode Measurement • Capacitance Measurement • DC/AC Current Measurement • Temperature Measurement • Frequency Measurement • Non-Contact AC Electric Field Sensing • Other Functions Maintenance • General Maintenance • Replacing the Batteries • Replacing the Fuses Technical Inde
Safety Information The following safety certification standards apply to this multimeter: • • • • CE certifications EN 61010-1:2010 and EN 61010-2-030:2010 EN 61326-1:2013 and EN 61326-2-2:2013 Overvoltage category: CAT II 1000V/CAT III 600V • Double insulation • Material pollution grade II Only use the multimeter as directed, or the multimeter may be damaged, and you may be seriously injured.
WARNING • To avoid electric shock, be extremely cautious when the measured voltage is higher than DC 60V or AC 30Vrms. • To avoid damaging the multimeter, always turn the rotary dial to the correct position when using. • Do not change the range on the rotary dial while the test leads are connected to a power source. • Do not alter the internal circuitry of the multimeter. This may result in serious injury.
Multimeter Features A The MSR-A1000 is a multifunctional multimeter with a large LCD screen, true RMS, and both auto and manual range. This multimeter is designed with a new intelligent ADC chip, overvoltage and overcurrent alarms, lightning protection (6kV), and high voltage protection. It is an ideal digital multimeter for commercial and industrial electricians.
Display Symbols Symbol Description Auto power-off High voltage warning Data hold is active Symbol Description Megaohm, 1 x 106 or 1,000,000 ohms Volts (voltage) Millivolt, 1 x 10-3 or 0.001 of a volt Indicates a negative reading Amperes or amps (current) AC measurement indicator Milliamp, 1 x 10-3 or 0.001 of an amp DC measurement indicator Low battery indicator Microamp, 1 x 10-6 or 0.
Button Functions Button SELECT Press to switch between resistance/diode/continuity/ capacitance, °C/°F temperature, and AC/DC current. RANGE Press to switch to manual range at ACV, DCV, mV, resistance, uA, mA and A positions. REL HOLD/ 8 Description Press to clear the base value at ACV, DCV, mV, resistance/ capacitance, uA, mA and A positions. Press to enable/disable the data hold mode (hold the current measurement on the display).
Operation General Use • Inspect the test leads for damaged insulation or exposed metal parts. Check the leads for continuity. Replace damaged test leads if necessary. • Keep your fingers behind the finger guards at all times when handling the test probes. [Figure 1.1] • Always remove the test leads from the item being measured before changing the range. • Check the fuses in the multimeter before measuring current.
AC Voltage, DC Voltage, and DC Millivoltage Measurement WARNING • To avoid electric shock, DC measurement should be less than 1000Vrms, and AC measurement should be less than 750Vrms. It is possible to measure higher voltage, but this may damage the multimeter and cause personal injury. • Always take extra care to avoid electric shock when measuring high voltages.
Resistance Measurement • When measuring low resistance, the resistance of the test leads may affect the test result, causing a 0.1Ω–0.2Ω measurement error. To get an accurate measurement, first test the resistance of the test leads by connecting them to each other, and subtract this value from the final measurement result. • When testing high-resistance objects, it is normal to wait for several seconds to obtain a stable reading (>1MΩ).
Continuity Measurement WARNING mV Ω °F°C A V OFF 1. Turn the rotary dial to the continuity ( position. [Figure 4.1] 2. Insert the black test lead into the COM terminal, and the red test lead into the terminal. 3. Test the test leads before measurement by connecting the metal ends of the leads together. [Figure 4.2] The multimeter will beep to indicate that the test leads are working properly. 4. Connect the test leads to the object being measured. NCV ) a.
Diode Measurement WARNING Before measuring, switch off the power supply of the circuit, and fully discharge all capacitors. This test sends a current through a diode or a semiconductor junction, then measures the voltage drop across the junction. 1. 2. 3. Note: ” if the test leads • The display will show “ are incorrectly connected, if the polarity is reversed, or if the diode is open. • The normal value for a PN silicon junction is 500–800mV (0.5–0.8V). • The diode test voltage range is about 3.0V/1.
Capacitance Measurement WARNING • Before measuring, switch off the power supply of the circuit, and fully discharge all capacitors. The display will show “ ” if the measured capacitor is short-circuited or the capacitance exceeds the maximum range. • When measuring large volume capacitors, it is normal to wait for several seconds to obtain a stable reading. • When measuring capacitance of 100nF or above, select relative measurement mode (REL) to ensure accuracy. 1.
DC/AC Current Measurement WARNING • Before measuring, switch off the power supply of the circuit, and carefully check the input terminals and the dial position. • To avoid electric shock or damage to the multimeter, never connect the test leads with any voltage circuit in parallel during current measurement. 1. 2. 3. Turn the rotary dial to the appropriate DC/AC current position. Press SELECT to choose AC or DC current test. [Figure 7.
Temperature Measurement 1. Turn the rotary dial to the temperature (°F°C) position. Press SELECT to choose Fahrenheit or Celsius units. [Figure 8.1] 3. 2. Use the type K thermocouple temperature probe. Insert the black test lead into the COM terminal, and the red test lead into the terminal. Note: • The measurement range is 10Hz–10MHz. 3. • Connect the test leads in parallel to the signal source. Hold them in place until the reading on the display stabilizes.
Non-Contact AC Electric Field Sensing This test detects whether there is an AC voltage or electromagnetic field in an area, without touching the area or object being measured. 1. Turn the rotary dial to the NCV position. [Figure 10.1] 2. Place the front end of the multimeter near the object being measured. The intensity of the detected voltage will be displayed on the LCD in horizontal segments (up to 4 segments). [Figure 10.2] The multimeter will beep when voltage is detected.
Other Functions 18 • The multimeter will be ready to take measurements 2 seconds after startup. • If the multimeter is not used for 15 minutes, it will automatically turn off to save power. You can turn on the multimeter by pressing any button or turning the dial, and the multimeter will beep once. • The multimeter will beep 5 times, 1 minute before automatic shutoff. Immediately before automatic shutoff, you will hear 1 long beep.
Maintenance General Maintenance • Clean the multimeter with a damp cloth and mild detergent. Do not use abrasives or solvents. 4. Remove the old batteries. Install 2 new 1.5V AA batteries into the compartment under the correct polarity. [Figure 11.1] 5. Replace and secure the battery compartment cover. • If you are experiencing any issues with the multimeter, please contact Customer Support (see page 30). • Any calibration or maintenance must be done by qualified professionals.
Replacing the Fuses Note: The fuses may burn out because of overcurrent or testing voltage improperly, and the multimeter will not work correctly. Replace any burnt-out fuses. 1. Disconnect the test leads and turn the rotary dial to OFF. 2. Remove the protective jacket from the multimeter. 3. Use a small screwdriver to remove both screws on the bottom of the multimeter. Remove the front cover from the back cover. [Figure 12.1] 4. Replace the old fuses. 3. 20 a. F1 Fuse Specifications: 0.
Technical Index Specifications Display Measurements 6000 counts with fast ADC (4 times/sec), true RMS Capacitance Measurement Response time <12s when capacitance ≤60mF Max voltage between input terminal and ground 1000Vrms A Terminal Fuse 10A H 1000V fast-acting fuse Φ6×32mm mA/μA Terminal Fuse 600mA H 1000V fast-acting fuse Φ6×32mm Range Auto Backlight Manual (Auto-Off after 30 seconds) Display Refresh 3 times/sec Battery 2 x 1.
Technical Index (cont.) Specifications Dimensions 7.4 x 3.5 x 2.2 in (187 x 88 x 56 mm) Weight About 14 oz (~400 g) including batteries EMC RF field (1V/m): overall accuracy = specified accuracy + 5% of range RF field (>1V/m): no specified calculation Accuracy Format ±(a% of reading + b digits) Ambient temperature for high accuracy 73.
i. AC Voltage Measurement Range Resolution 6V 0.001V 60V 0.01V 600V 0.1V 750V 1V ii. DC Voltage Measurement Accuracy ±(1.0%+3) ±(0.8%+5) • Input impedance is about 10MΩ. • Frequency response: 40 – 400Hz, sine wave rms (average response). • Max input voltage: ± 750V • LCD shows “ ” if there in an overload within the selected range. • • • Range Resolution 60mV 0.01mV 600mV 0.1mV 6V 1mV 60V 0.01V 600V 0.1V 1000V 1V Accuracy ±(0.7%+5) ±(0.5%+2) ±(0.
iii. Resistance Measurement • • iv. DC Current Measurement Range Resolution Accuracy Range Resolution 600Ω 0.1Ω ±(0.8%+5) 60μA 0.01μA 600μA 0.1μA ±(0.8%+3) 6000μA 1μA 60mA 0.01mA 6kΩ 0.001kΩ 60kΩ 0.01kΩ 600kΩ 0.1kΩ 60MΩ 0.01MΩ ±(3.0%+10) Measurement result = reading of resistance after subtracting reading of shorted test leads Overload protection: 1000Vrms (DC/AC) 600mA 0.1mA 6A 0.001A 10A 0.01A Accuracy ±(0.8%+8) ±(1.2%+5) ±(2.
v. AC Current Measurement Range Resolution 60μA 0.01μA 600μA 0.1μA 6000μA 1μA 60mA 0.01mA 600mA 0.1mA 6A 0.001A 10A 0.01A vi. Frequency Measurement Accuracy ±(1.0%+12) ±(2.0%+3) ±(3.0%+5) • • Range Resolution Accuracy 9.999Hz– 9.999MHz 0.001Hz– 0.001MHz ±(0.
vii. Continuity & Diode Measurement Range Resolution 0.1Ω 0.001V • 26 Accuracy If the measured resistance is greater than 50Ω, the multimeter will read the circuit as open, and the multimeter will not beep. If the measured resistance is 10Ω or less, the multimeter will read the circuit as well-connected, and the multimeter will beep. Open circuit voltage: about 3V. Test current: about 1.5mA. Silicon PN junction normal voltage: about 0.5–0.8V. Overload protection: 1000Vrms (DC/AC) viii.
ix. Temperature Measurement Range Resolution °C °F -40°C–1000°C -40°F–1832°F >40°C–500°C Accuracy ±4°C -40°C–40°C 1°C ±(1.0%+4) >500°C–1000°C ±(2.0%+4) -40°F–104°F ±5°C >104°F–932°F >932°F–1832°F 1°F ±(1.5%+5) ±(2.5%+5) • The included type K (NiCr–NiSi) thermocouple can only be used for temperature lower than 482°F (250°C). Use a different thermocouple for higher temperatures.
Warranty Information Product Name Digital Multimeter Model Number MSR-A1000 Default Warranty Period 1 year For your own reference, we strongly recommend that you record your order number and date of purchase. Order Number Date of Purchase TERMS & POLICY Etekcity warrants all products to be of the highest quality in material, craftsmanship, and service, effective from the date of purchase to the end of the warranty period.
ALL EXPRESSED AND IMPLIED WARRANTIES, INCLUDING THE WARRANTY OF MERCHANTABILITY, ARE LIMITED TO THE PERIOD OF THE LIMITED WARRANTY. Additional 1-Year Warranty You can extend your 1-year warranty by an additional year. Log onto www.etekcity.com/warranty and enter your order number (e.g., from Amazon or Houzz) within the first 14 days of your purchase to register your new product for the extended warranty.
Customer Support If you encounter any issues or have any questions regarding your new product, please contact our helpful Customer Support Team. Your satisfaction is our goal! Customer Support Support Hours Etekcity Corporation 1202 N. Miller St., Suite A Anaheim, CA 92806 Mon–Fri, 9:00 am–5:00 pm PST/PDT Toll Free: (855) 686-3835 Email: support@etekcity.com * Please have your order invoice and order number ready before contacting Customer Support.
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