GDZX ZXFC User manual

ZXFC Lightening
Protection Devices Tester

ZXFC MOV SPD TESTER
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MANUAL
I Product Functions and Features....................................................................................................................................2
II Technique Parameters...................................................................................................................................................2
III Panel............................................................................................................................................................................... 3
IV. Operation Method........................................................................................................................................................ 4
V Precautions...................................................................................................................................................................... 6
VI After sale service........................................................................................................................................................... 6
VII Packing list.................................................................................................................................................................... 7

ZXFC MOV SPD TESTER
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I Product Functions and Features
1. This instrument is applied to test the DC parameters of Oxide Zinc voltage dependent resistor
( varistor / MOV), ceramic 2/3-electrode surge arrester, gas discharge tube and other Surge
Protective Devices. It also can be used as stable power source or constant current power supply.
2 HV short circuit protection, over current protection, high voltage preset, range adjustment and other
functions. High voltage self discharge time is less than 0.5 seconds.
3. Self inspection function.
4. Three and a half digits display, high accuracy and good reliability.
5. Audible alarm for over range during the measurement after presetting
6. Continuous measurement can be used for batch testings
7. Simple panel, easy operation, light weight, easy carrying
II Technique Parameters
1. MOV measurement
Technique parameter
range
error
condition
Initial action voltage:U1mA
0~1999V
≤±1%±1d
1mA±5μA
Leakage current:0.75U1mA
0~199.9μA
≤±1μA±1d
0.75U1mA≤±1%±1d
2. SPD measurement
Technique parameter
Range
error
Condition
DC breakdown voltage Vsdc
75~1999v
≤±1%±1d
Voltage rise speed:100V/S±10%
3. Others
Insulation resistance: 6MΩ(500V)
Withstand voltage: AC 1.5kV 50HZ 1min
Working temperature and humidity: 0～+40℃≤85％RH
Storage temperature and humidity: -10℃～+50℃≤90％RH
Power supply: AC 220V 50Hz/DC12V
Consumption: 8W
Instrument size: 208mm×190mm×78mm
Net Weight: 1.5kg

ZXFC MOV SPD TESTER
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III Panel
Front
Rear
1. HV limit 2.Single/Continuous 3.MOV/SPD
4. HV indicating light 5.HV on/off 6.Display conversion
7. Test 8.Testing light 9.Voltage preset
10.Screen 11.Buzzer 12.power switch
13.Test terminal(red) 14.Test terminal(black) 15.Power socket

ZXFC MOV SPD TESTER
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IV. Operation Method
1. preparation
1) Turn "HV limit" knob clockwise to the end (maximum) and the "voltage preset" counterclockwise to the end
(minimum). Insert the test lines into the panel "+" and "-" respectively. Connect the external power source to
the back panel corresponding power socket.
2) Turn on the power switch. If the instrument display "000", it means the instrument is working well,
otherwise, it is abnormal. Please contact the sales personnel promptly.
2. Test
1) test of varistor/MOV
Turn "varistor / discharge tube" to Varistor (Top) side, "single / continuous" to single(top)end, connect to the
testing object, Press "HV on/off" key and press "test" button. The screen immediately displays the breakdown
voltage of the measured varistor (U1mA), the unit is "V". After about 2 seconds, automatically displays the
leakage current (I 0.75U1mA), the unit isμA, and the green indicating light in on along with the leakage current
display, lasting about 2 seconds.
2) Gas Discharge tube test
(1) routine methods (recommended)
Select "varistor / discharge tube" and "single / continuous" to lower side, connect to the testing sample after
made the preparation mentioned above.
Press "HV on/off" key and "test” key, the test voltage rises from the voltage preset value at the rate of 100V/s,
when the green indicator lights up, the screen displays the voltage which is the ignition voltage of the tube.
(2) screening method
Turn "varistor / discharge tube" to low position (discharge tube), "single / continuous" to top position (single),
clockwise "voltage preset" knob to the end (maximum). Press "HV on/off" knob to the required value (the
upper limit of the test range). Then adjust the "voltage preset" knob to select the voltage value (the lower limit
of the test range).
Connect the test line into testing tube, press "HV on/off" , If the buzzer sends out a sound warning, the Vsdc
value of the ignition voltage of the measured discharge tube is less than the "voltage preset" value (the lower
limit of the super range). At this point, the high voltage should be shut down and the tested product should be
removed in time. Otherwise, the ignition will be repeated. If the buzzer does not alarm, it means that the value
of the ignition voltage Vsdc of the measured discharge tube is greater than the voltage preset. You can click
"test" to continue the next steps.

ZXFC MOV SPD TESTER
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After clicking the "test" button, the test voltage starts at the rate of 100V/s and step up from the voltage preset
value. After the green light is on:
If the buzzer does not alarm, the display is the ignition voltage of measured discharge tube in the
measurement range.
If the buzzer alarms, the display is the upper limit of the measurement range. At this time, the ignition voltage
Vsdc value of the tested product is greater than the upper limit of the measurement range (upper limit range)
and no ignition. Increase the "upper limit of test range" and repeat the test again.
The green indicator lighting up time along with the value display lasts for about 2 seconds, and then revert to
the preset state.
When the green indicator light is on, remove the measured discharge tube and wait the preset voltage is
restored then make the next test.
Continuous measurement
Turn single / continuous to low position to start continuous measurements
Self-check and others
A) Varistor/MOV 1mA value test
Select varistor / discharge tube to varistor, open high voltage, preset voltage to above 10V, short circuit "+"
“-”ends, display should be "000", long press "display conversion" key, display should be "1000", otherwise it
indicates the instrument has problems, please contact the after sale personnel in time.
B) examination of the 0.75U1mA value of the varistor test
Make the test ends open circuited and press test key, the display screen should show the upper limit of the
range. When the green light is on, press "display conversion" key, the display should be 0.75 times of the upper
limit of the range.
C) in the process of testing, long press "display conversion” to display the value under 1mA (1000uA) test
condition during U1mA measurement, or the value of 0.75U1mA test condition during I0.75U1mA
measurement.
Others
Use voltage preset and range adjustment function the instrument can be used as 1999V/1mA DC stablized
power supply and 1mA constant current source (the instrument constant output 1mA test current when the
load current reaches 1mA). With the use of "display conversion" key, the value of load voltage and current (V/I
characteristics) can be measured.
3. completion of the test

ZXFC MOV SPD TESTER
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Click "HV on/off" button to turn off the test voltage, turn off the power switch. When using external DC 12V DC
power supply, the power cord should be removed.
V Precautions
1. This machine has range (test scope) adjustment function.during the use, the test voltage should be as low
as possible to reduce energy consumption, prolong the life of the instrument, the test time can be reduced with
higher efficiency. It can also be used for group selection. The user should make full use of this reasonable
function.
Preset voltage regulation range: 0V ~ 1800V
Range of range scope: 100V ~ 1999V
When range setting or test value exceeds 1999V, display displays signal "1"
Note: the actual output 1999V
2. discharge tube test preset voltage value is the starting value of 100V/S rate rising voltage and the lower
limit of the test range. The preset voltage of the varistor test is only used as the lower limit of the range, and
the lower limit of the actual test range starts from 0V.
3. The preset voltage setting should be lower than the upper limit voltage. Otherwise, the test voltage will be
limited in the range/upper limit, in the discharge tube test, the test indicator will be repeatedly lit and
accompanied by over range sound prompts. At this time, lower the preset voltage.
4. The test voltage of this machine is as high as 1900V, keep the panel and work table clean and dry to avoid
the error caused by leakage of current, arc and corona.
5. Use 2P3W supply socket, well grounded.
6. The operator should take the necessary HV protection measures to avoid electrical injury.
VI After sale service
Customers who purchase the equipment of the company enjoy the following after-sales service:
Within one month from the date of delivery, any quality problem our company will replace free, but the user
can not disassemble the machine by himself.
The quality problem is free of charge in our company within one year.
The instrument has been used for more than one year. Our company is responsible for long-term maintenance
and appropriate charge for materials.
If the instrument fails, turn to full-time maintenance personnel or send it back to our company for repair. Do
not open the instrument without advice. Otherwise our company will not be responsible for the damage.

ZXFC MOV SPD TESTER
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VII Packing list
1. Main tester 1 pcs
2. Test lines 1 set
3. test clips 2 pcs
4. special power supply 1 pcs
5. Manual 1 copy
6. Inspection reports 1 copy
7. Warranty card 1 pcs
8. Carrying box 1 pcs