Model 4001A, 4003A Sweep Function Generator INSTRUCTION MANUAL
Table of Contents Section 1 SAFETY GUIDELINES ............................................................................... 3 COMPLIANCE STATEMENTS.................................................................. 4 Section 2 INTRODUCTION ........................................................................................ 5 Section 3 TECHNICAL SPECIFICATIONS ............................................................... 6 Section 4 CONTROLS & INDICATORS ...............................................
Section 1 Safety Guidelines WARNING Normal use of test equipment exposes you to a certain amount of danger from electrical shock because testing must sometimes be performed where exposed voltage is present. An electrical shock causing 10 milliamps of current to pass through the heart will stop most human heartbeats. A voltage as low as 35 volts DC or AC (RMS) should be considered dangerous and hazardous since it can produce a lethal current under certain conditions.
Compliance Statements Disposal of Old Electrical & Electronic Equipment (Applicable in the European Union and other European countries with separate collection systems) This product is subject to Directive 2002/96/EC of the European Parliament and the Council of the European Union on waste electrical and electronic equipment (WEEE), and in jurisdictions adopting that Directive, is marked as being put on the market after August 13, 2005, and should not be disposed of as unsorted municipal waste.
Section 2 Introduction Models 4001A and 4003A are 4 MHz sweep function generators. Model 4003A has an added feature of a 20 MHz digital counter. The function generator generates sinusoidal, triangular, ramp, square, and pulse waveforms. The type of function is selectable through a rotary switch. The frequency is settable from 0.5 Hz to 4 MHz of the function with range selector switch and the frequency control knob for variable adjustments with multiplication factor of 0.04 to 4.
Section 3 Technical Specifications 3.1 FREQUENCY CHARACTERISTICS Waveforms: Sine, Square, Triangle, Ramp, ± Pulse Range: 0.5 Hz to 4 MHz in 6 ranges Tuning Range: Variable multiplication factor of 0.04 to 4.0 of selected range Resolution: 0.001 Hz (model 4003A only) Operating Modes: Normal, Sweep, VCF Frequency Stability: Output will change less than 0.1 % for 15 minutes after switching ON and it will change less than 0.2 % for 24 Hours after switching ON 3.2 OUTPUT CHARACTERISTICS Impedance: 50 Ω ± 2 %.
3.6 SQUARE WAVE Symmetry: Rise Time: 3.7 POSITIVE PULSE Frequency Range: Pulse Width: Symmetry: Rise Time: 3.8 NEGATIVE PULSE Frequency Range: Pulse Width: Symmetry: Rise Time: 50 % (positive half) to 50 % (negative half) < 2%, 1 Hz to 100 kHz < 90 ns, (20 Vpp, no load) 0.5 Hz to 3.5 MHz 15% of time period of the set frequency 20% to 80%, < 5%, 1 Hz to 100 kHz < 90 ns, (20 Vpp, no load) 0.5 Hz to 3.
3.13 FREQUENCY COUNTER (model 4003A only) Display: 5-digit, auto range Display Unit: Hz/kHz auto range Resolution: 0.01 Hz (max.) Accuracy: < 0.02 % ± 1 digit, for ≥ 1 kHz Temp coefficient: < 10 PPM / °C 3.14 EXTERNAL COUNTER (model 4003A only) Max. Input Voltage: < 150 Vrms Input Frequency: 0.2 Hz to 20 MHz Coupling: HF - for more than 100 kHz LF - with 100 kHz filter for less than 100 kHz Sensitivity: <100 mVrms (1 MHz), <200 mVrms (>1 MHz) 3.15 AC INPUT: 3.
Section 4 Controls & Indicators 4.1 FRONT PANEL (Refer to Figure 1 & Figure 2) 1. POWER SWITCH Pushing the switch “ON” will light the LED of the 5 digit display to indicate power ON. 2. FREQUENCY CONTROL KNOB Used to adjust the required frequency for selected range with the multiplication factor of 0.04 to 4.0. 3. SYNC OUTPUT The TTL level square signal output synchronous with frequency of MAIN output. 4.
Figure 1 – Front Panel Controls (4001A) Figure 2 - Front Panel Controls (4003A) 10
10. FUNCTION SELECTOR SWITCH A rotary switch for waveform selection. 11. FREQUENCY RANGE SELECTOR SWITCH A rotary switch to select the range from 10 Hz to 1 MHz in 6 steps. (Refer to Figure 2) 12. Hz LED Green LED will light when the MAIN output frequency is in Hz. 13. kHz LED Red LED will light when the MAIN output frequency is in kHz. 14. 5-DIGIT LED DISPLAY Indicates frequency of MAIN output or the frequency of signal connected to external input. 15.
Figure 3 - Rear Panel 12
Section 5 Operating Instructions Before applying power to unit, make sure that input voltage setting is correct and the ventilation holes are not blocked. Ensure that ventilation fan is working well. It is necessary to inspect the generated signal with an oscilloscope before connecting it to any electronic circuit. Hence use of oscilloscope is mentioned in the procedure. Turn on the instrument with POWER SWITCH provided on the front panel. The display shows the reading as per present settings. 5.
4. Display will show the frequency and Hz / kHz LED’s will light depending on the frequency. 5.4 VOLTAGE CONTROLLED FREQUENCY OPERATION (model 4003A only) The 4003A can be operated as a voltage controlled generator by using an external control voltage applied to the VCF input. 1. Select the desired frequency range and waveform. 2. Set the starting frequency with the variable control. Apply a positive DC voltage to the VCF input to increase the frequency.
Section 6 Maintenance 6.1 6.2 PREVENTIVE MAINTENANCE Please follow the following preventive steps to ensure the proper operation of your instrument. Never place heavy objects on the instrument. Never place a hot soldering iron on or near the instrument. Never insert wires, pins, or other metal objects into ventilation fan. Never move or pull the instrument with power cord or output lead. More importantly, never move instrument when power cord or output lead is connected.
Because of the specialized skills and test equipment required for instrument repair and calibration, many customers prefer to rely upon B&K PRECISION for this service. To use this service, even if the instrument is no longer under warranty, follow the instructions given in the WARRANTY SERVICE INSTRUCTIONS portion of this manual. There is a nominal charge for instruments out of warranty.
Section 8 SERVICE INFORMATION Warranty Service: Please return the product in the original packaging with proof of purchase to the address below. Clearly state in writing the performance problem and return any leads, probes, connectors, and accessories that you are using with the device. Non-Warranty Service: Return the product in the original packaging to the address below.
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