Universal System Instruction Manual
Catalogue Brief …………………………………………………………………2 Ⅰ Panel Operation Instruction … ……………………………………3 Ⅱ Operation Cautions … … …………………………………………4 Ⅲ Frequency Counter (FC)Operation Instruction … … ……………5 Ⅳ Function Generator(FG) Operation Instruction …………………7 Ⅴ DC Power Supply (DPS)Instruction … …………………………10 Ⅵ Digital Multimeter (DMM) Instruction …………………………11 Ⅶ Accessories … … …………………………………………………31 Ⅷ Maintenance and Service …………………………………………31 1
Brief Thanks for your purchasing universal system. To ensure the correct operations, please read the manual carefully before using it. After that, please keep it well. The instrument is produced according with the strict quality control standard. All the components are selected and aged in full range. It passes a series environmental experiments and it will be in optimum working state in the indicated working environment.
Ⅰ Panel Operation Instruction Diagram of Front Panel Diagram of Rear Panel Operation Instruction 3
○,1 Display window of FC ○,3 Data hold of FC ○,5 Channel select key of FC ○,7 CHB input of FC ○,9 Frequency variable knob of FG ○,11 Input of ext amplitude of FG ○,13 Signal output of FG ○,15 DC offset variable knob of FG ○,17 Output on/off control key of FG ○,19 Display control key of FG ○,21 Auxiliary function key zone of DMM ○,23 Function keys zone of DMM ○,25 Input terminal of mA current of DMM ○,27 ○,29 ○,31 ○,33 DPS ○,35 ○,37 ○,39 ○,41 ○,43 ○,2 Reset of FC ○,4 Gate time key of FC ○,6 Low pass filter
7. Keep it far away from the high magnetic field and don’t operate it near to magnetic field. Do not expose it to strong sunshine or ultraviolets directly. 8. Don’t put other objects on it and don’t block the vent holes. 9. Don’t insert lead or pin into the vent holes. 10. Don’t drag it through cables. 11. Don’t put soldering iron on its surface or plastic frame. 12. Don’t invert it for long time during storage and transportation. 13. Check steps before operation： 13.
Note: Time base Error: ≤10ppm(at normal temperature) Trigger Error≤0.3% when SNR(Signal-to-Noise Ratio)>40dB 1.4 Dynamic Range: CHA 50Vrms~1.5Vrms CHB -13dBm~+13dBm (100MHz-1GHz) -7dBm~+13dBm (1GHz-2.7GHz) 1.5 Max. undamage voltage: 1.5 Input impedance: CHA 35Vpp CHB 3Vpp CHA 1MΩ//40pF CHB 50Ω 10MHz ±(100ns/Gate times）x measured signal frequency 1.6 Time base frequency: 1.7 Resolution: 2. Basic Operation 2.1 Please check voltage and fuse before the power is on.
2.9 Over-flow indicator（OFL）: When the measured signal frequency is over the range, the over-flow indicator (OFL) will be on, and “ ” will be on the display window（○,1）. 2.10 When both FC and FG are working, both powers need to be turned on. To turn off FG and keep FC working, please press the DISPLAY key (○,19). After the “F/C” indicator lights, the display window(○,1) shows the measured frequency by FC. Then turn off the FG’s power switch. Ⅵ Function Generator (FG) Operation Instruction 1.
1.5.4 Sweep freq velocity: 0.01Hz～100Hz 1.6 Attenuation: 1.6.1 Attenuation: -20dB 1.6.2 Error: ±3％(open circuit） 1.7 External Amplitude Input: 1.7.1 Input impedance: 1kΩ 1.7.2 Ext amplitude freq range: 0.1Hz～20kHz（the output impedance of modulation source is 50Ω） 1.7.3 Ext amplitude sensitivity: 0～5Vpp±2% 1.7.4 Amplitude depth: 0～100％ 1.8 TTL Output: 1.8.1 Output amplitude: “0” level ≤0.3V; “1” level ≥3.3V 1.8.2 Output impedance: 50Ω ±10％ 2. Panel Layout 2.
3.1 FC display window（ ○,1）displays frequency. 6 digits of FG. 3.2 The frequency can be adjusted by hand wheel or enter numbers directly. Once the power is on, the default output frequency is 1 kHz. At the time, number “1” is flashing. Remove the flashing number horizontally by【＜】 and【＞】and the flashing number can be changed through rotating the hand wheel. Press【 .】, indicator “Range” above 【.】 will be on.
【Line】：Press【5】，the “Line” indicator will be on, the FG is in the state of linearity sweep frequency mode. F1 indicator is on above number key 【7】, and then the first frequency of linearity sweep frequency can be set. Press【7】, indicator “F2” will be on, then the end frequency can be set. Press【7】again, indicator “Rate” is on, and then sweep frequency velocity can be set. Press number key【5】，indicator “Line” will be off. All the indicators above【7】are off, FG will quit sweep frequency mode.
1.2.4 Load effect: 0.1％＋50mV 1.2.5 Source effect: 0.1％＋30mV 1.2.6 Max. Output current: ≥1.2A 1.3 CH3 output（output terminal ○,30） 1.3.1 Output voltage: fixed ＋5V±3% 1.3.2 Output current: 2A 1.3.3 Ripple and noise: ≤2mVrms 1.3.4 Load effect: 0.1％＋70mV 1.3.5 Source effect: 0.1％＋30mV 1.3.6 Max. Output current: ≥2.2A 2. Basic Operation 2.1 Please check the fuses before the power is on. Disconnect all the cables connected to the output terminals.
Ⅵ Digital Multimeter (DMM) Operation Instruction 1. Safe Operation Rules 1.1 It is suitable for the over voltage standard of IEC 61010 CAT II 600V 1.2 Please check whether the shell, test lead and isolating layer are perfect and without any damage before use it. 1.3 Please check the voltage to confirm the meter is in good working state. Otherwise, please contact to repair immediately instead of using it. 1.4 Please use the terminals and select divisions of function and range correctly when measure it. 1.
COM For all the common terminals mA mA current input terminal 10A 10A current input terminal VΩHz Voltage, resistance, continuity, diode, capacitor, frequency, temperature measurement and square wave output terminal. 2.2 Refer to Table 2 for Function keys（○,23） Chart 2.
Chart 3. Notice: Because this DMM has complicated functions, when pressing these keys, the meter has to make logic judge which takes some time. Please make measurements after the display is stable. 2.3.1【SELECT】 ● Press【SELECT】to select the needed measurement state. ● When the DMM output square wave, please press 【SELECT】 to change duty of square wave signal. Press it each time, it will change 1% (The variable change 1％～99％）. 2.3.2【RANGE】 ● Once the power is on, the DMM is in AUTO range state.
● Press【A-H】lasting more than 2s to exit Peak Hold mode and return to normal mode. 2.3.5【2nd VIEW】 ● In Table3 measuring state, press 【2nd VIEW】to switch and display each function in slave display.
● ● Press 【REL】lasting more than 2s, it will be back to normal . Setting of relative measured value: ○,1 Press【RANGE】to select the suitable range. ○,2 Press【SET】once and press【SELECT】twice, it will be in state of relative value setting and at the same time【▲】,【▼】,【◄】and【►】are workable. 3 ○, After setting, please press【SET】to confirm it. 2.3.
11 A─H Automatic Peak Hold 12 AVG Record average value 13 AUTO Auto range 14 MAX MIN MAX－MIN MAX reading, MIN reading, MAX-MIN reading 18 mV/V/mA/A Voltage and current units on slave display 19 Hz/kHz/MHz/Ω/kΩ/MΩ Frequency and resistance units on slave display 20 ％ ％ ms ms Duty cycle unit and pulse width unit 21 nF/μF Capacitance unit: nF or μF 22 mV/V/mA/A Voltage and current unit on primary display 23 dBm Level unit: dBm 24 Hz/kHz/MHz/Ω/kΩ/MΩ Frequency and resistance un
4.2 Set upper and lower limits for measurement ● Procedures to set upper and lower measurement limits. ○,1 Upper limit set: Turn on the power. Select the functions state and select suitable range with 【RANGE】. Press【SET】to run setting mode ( “ ” will be on slave display). Press【◄】【 , ►】【 , ▲】 and 【▼】to set the upper limit value. Press【SET】to confirm it. 2 ○, Lower limit set: Turn on the power. Select the functions state and select suitable range with 【RANGE】.
● Press【V 】and it will be in DC voltage measurement . ● There are 3 measurement modes: DCV，DCV＋ACV Chart 5 DC Voltage Measurements and dBm. Press【SELECT】to select one of them. ● When the power is on, the measurement will be on AUTO state. Press【RANGE】 to select range manually: 8.0000V/80.000V/600.00V ● According with the user’s requirements, press（【REL】 【MAX/MIN】 and 【2nd VIEW】）to do test and record. All of them will be on slave display.
display. ● Insert red test leads into “VΩHz” and black into “COM” and contact the test point via lead’s pin. Please refer to Chart6 for the measurement mode. Chart 6. AC Voltage Measurement The measured values and relative symbols will be on master and slave display at the same time.
The selectable ranges are: 8 0 . 0 0 0 m V / 8 0 0 . 0 0 m V. ● Press【REL】, 【MAX/MIN】and Chart 7. AC/DC mV Measurement 【2nd VIEW】）to do the relative test or record which will be in slave display. ● Insert red test leads into “VΩHz” and black into “COM” and contact the test point via lead’s pin. Please refer to Chart 7. for the measurement mode. The measured values and relative symbols will be on master and slave display at the same time.
To avoid damage to the meter, check the meter’s fuse before tests. Before current measurement, turn off the DMM power supply, discharge the high voltage capacitance. Do not place the probes in parallel with a circuit or component when the leads are plugged into the current terminals. Do not test voltage when the test leads are plugged in “mA” or “10A” terminals. Use the proper terminals, functions, and ranges for your measurement. 5.4.
Note: Before tests on small AC current, please have the two test leads in open-circuit status and press【REL】to make zero for a better accuracy! Do not make 20A current measurements for longer than 15 seconds. Exceeding 15 seconds may cause damage to the meter and/or the test leads. ● Press【10A 】 to enter the function. ● It has three states of DCA, ACA, ACA ＋Hz, DCA＋ACA. Press【SELECT】 to select one of them. ● When the power is on, the measurement mode will be in AUTO state.
an error of 0.1Ω~0.5Ω in the test results. To avoid this error, first short the test leads, next press 【REL】key. The master display will be zero and the slave display displays the resistance of test lead. . ● Press【Ω】 to the function of resistor measurement. ● The measurement has three modes: noraml (Ω) ， Continuity ( ) and hi-impedance（Hi）. Press 【SELECT】to select one of them. ● Normal resistance check（Ω） ○,1 When the power is on, the measurement mode will be in AUTO state.
5.6 Capacitance Measurement（ ） Warning: To avoid damage to the meter or the testing equipments disconnect circuit power and discharge all high voltage capacitors before measuring capacitance. Use the DC function to confirm that the capacitor is discharged. Notes: Some capacitors have polarities. In measuring polarities capacitors, touch the red test lead to the positive polarity and the black test lead to the negative polarity.
frequency range is as follows ： 999.99Hz / 9.9999kHz/ 99.999kHz/ 999.99kHz/ 5.0000MHz. When test it, it will be always in state of auto range.Then frequency range is 0.5Hz～5MHz. ● In the state of HiHz，the frequency is 9.9999MHz/99.999MHz/999.99MHz. Use other high frequency accessories to measure frequency above 10MHz. During measurement, it will be always in auto measurement Mode. The frequency range is 8MHz ～1000MHz in such state. Also, the Chart 12.
● ● ● ● ● Press【TEMP】to enter the function of temperature measurement. It has two measurement modes: normal and Hi. Press【SELECT】to select Hi or normal mode. Chart 13. Temperature Measurement When “Hi” is displayed on the master display, use K type thermoucouple to measure temperature. The temperature range is -50 ～ 1300 and -58 ～2372 。 When “Hi” appears from the display, the displayed temperature on the master display is the inside temperature of this instrument.
good voltage drop is approximately 0.5V～0.8V. If no diode measurement is done, the master display shows the testing voltage “3.3 V” ● When using this function as continuity test, the display at the time has no meaning, the continuity can only be judged by the beeper. If the beeper sounds, it means the circuit/component is shorted. Table 13： Measurement State Master Display V (Voltage Drop) Slave Display : voltage drop>2V, the diode is in open circuit or inverted connection : voltage drop is within 0.
The accuracy is indicated as: ±（a%× reading ＋n） a－relative factor of measurement error n－absolute error with numbers. 6.1 DC Voltage Measurement Range Resolution Accuracy 80mV 1µV ±(0.3% +15) 800mV 10µV 8V 0.1mV 80V 1mV 600V 10mV Remark Input impedance: ±(0.10% +15) 80mV～800mV>1000MΩ 8V～600V：10MΩ ±(0.15% +15) 6.2 True RMS of AC voltage Accuracy (F:frequency) Range Resolution <75% Range: <75% Range: >75% Range: 50Hz≤f<20kHz 20kHz≤f≤50kHz 50Hz～20kHz 80mV 1μV ±(2.
8A 0.1mA ±(1.5% +20) Sensitivity : mA Range is 50Hz～5kHz, A Range is 50Hz～500Hz 1mA ±(2.0% +20) Max. Input Current: 20A(up to 15 seconds every 15 minutes) 10A Note: For small current, please connect the test lead in open status to make zero before tests for better accuracy. 6.5 Resistor Range Resolution 800Ω 0.01Ω 8kΩ 0.1Ω 80kΩ 1Ω 800kΩ 10Ω 8MΩ 100Ω 80MΩ 1kΩ HiΩ:1000MΩ 0.1MΩ Accuracy Remark ±(0.3% +10) (≤10Ω: 0.
100µF 100nF 6.10 Temperature Temperature Accuracy Resolution Remark type K thermocouple 0.1 -50℃～1300℃ or 32 ≥0 -58℉～2372℉ （The accuracy by K type or 32 ：±（10% +5°） ＜0 & ≤1000 ＞1000 thermocouple is tested or 1832 ：±（2.0% +2°） or 1832 :±（3.0% +20°） 0.1 under the condition that the Inner Temperature is within 23℃±5℃） 0℃～80℃ ±（10% +3°+100dgts） 0.001 Inner Temperature 32℉～176℉ ±（10% +3°+20dgts） 0.01 (for reference only!) 6.
Please clean the shell with soft cloth or neutral detergent. The dirt on terminals and test leads will affect the readings. Please clean them with cotton balls moist with detergent. When it is only stored, please pull out the key of power switch. And it should take off the external connected power cord if it is not used for long time. The instrument should not be stored in place of humidity, high temperature and strong magnetic filed. If the instrument seems defective, please check power supply and fuse.
