WatchfulEye WTH-CS-1000V User manual

Portable Surge Protective Device Tester
Of all similar SPD testers, it is probably the lightest,
smallest tester with the most accurate test data
and the most durable battery
Working Principle of a Surge Protective Device
The core component of a surge protector is a nonlinear component inside. According to the different nonlinear
components, surge protectors can be classified as switch-type (the core component is mainly GDT) and voltage-limiting
type (the core component is mainly MOV).
Although the working principles of GDT and MOV are different, the basic characteristics are very similar: when there is no
over voltage, their impedance is very high, generally megohm level, which is almost equivalent to an open circuit. When
an over voltage occurs, the impedance quickly drops to a few ohms, and the surge current will flow into the ground
through the surge protector instead of entering the equipment. At the same time, as the impedance of the surge protector
at this time is small, the voltage on both sides is also relatively small, and it is connected in parallel with the protected
equipment, it also prevents the equipment from withstanding large surge voltages. In this way, it has the effect of draining
and limiting the pressure.
Importance of Leakage Current Parameters
With the extension of the service life of the voltage-limiting surge protector, the gradual aging of the MOV chip will be
accompanied by an increase in leakage current. The increase in leakage current will cause overheating, accelerated
aging, and failure of the surge protector.
If we do not pay attention to the aging curve of the surge protector and replace it in time, once the surge protector cannot
disconnect in time when getting overheating due to increasing in leakage current, it will more likely cause an explosion,
and more seriously, it may cause a fire.
Importance of Break-over Voltage Parameters
The break-over voltage of surge protector is the voltage value measured when the current flowing through the surge
protector is 1 mA when the test voltage increases.
Has the surge protector in the system been broken down?
Can the SPD which has been used for years continue to be used?
If the L-PE voltage of the power grid system is 277V, is the selected surge protector correct?
Normally only the value of UC is marked on the surge protector. What is the actual break-over voltage in response to the
surge current?
All of problems above will be solved when break-over voltage parameters are measured.
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Portable Surge Protective Device Tester
About Watchfuleye
WatchfulEye Solutions specializes in developing and manufacturing a complete range of surge protective devices(SPDs),
protecting your equipment and systems against surge caused by lightning inductive voltage or operational over voltages.
Watchful Eye surge protective devices are widely used in low voltage DC & AC power supply system, data and control
system in telecommunication and new energy industry such as solar and wind power system, etc.
UL certificate for power supply series:
UL File number ： E345944
UL certificate for networking & signal series:
UL File number ： E346881
CE Certificate:
Certificate number for power supply series ： 1048140519
Certificate for networking & signal series ： 1044270319
RoHS Certificate:
RoHS for power supply series ： STT/15T1037-RoHS
RoHS for Networking and signal series ： STT/15T1036-RoHS
Paperless Datasheet
Going green and protecting environment is manufacturers' responsibility. Each WatchfulEyE product has a link of
downloading data sheet on its enclosure:
http://datasheet.watchfuleyesolutions.com/US128002.html
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Portable Surge Protective Device Tester
Surge Protective Device Tester User Manual Menu
Importance of Leakage Current & Break-over Voltage Parameters 1
About Watchfuleye 2
Surge Protective Device Tester User Manual Menu 3
Model & Ordering Code, Main Features 4
Conformity of Test Result 4
Technical Specification, Dimensions 5
Introduction of the SPD Tester 6
Safety Instructions, Power Supply of the SPD Tester, Test Error 7
Testing Banana Plugs and Testing Pens 7
Testing Preparation and Testing Mode Selection 7
FUNCTION SELECTION 8
TESTING MODE AND PROCEDURE
Ⅰ . Rapid Test of MOV-Type SPDs 9
Ⅱ . Precise Test and Calibration Mode of Break-Over Voltage 10
Ⅲ . Precise Test and Calibration of MOV Leakage Current 11
Ⅳ . Leakage Current Test under the Mode of Fine-Turning "Ad" Voltage 12
Ⅴ . GDT Test and Calibration 13
VI. Precise Testing and Calibration of Breakdown Voltage 13
VII. Help for Tester Measurement (measurement by third-party institutions) 14
Ⅵ II. Calibration Steps of the Tester 15
FAQ & Help 16
Download WatchfulEyE Official App 19
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Portable Surge Protective Device Tester
.
Portable Surge Protective Device Tester
WTH-CS/BT-1000V portable handheld LCD display Break-over Voltage Leakage current tester for surge protective device
applies to the measurement of the parameters of the voltage-limiting type and switch-type SPDs. These data are used for
evaluating the operating characteristics of the SPDs and the product selection to cooperate with the construction site.
Model & Ordering Code
Model: WTH-CS/BT-1000V
Ordering Code: US128002
UPC/EAN Code: (0) 811914030058
Main Features of WTH-CS/BT-1000V SPD Tester:
1. Portable and convenient use with batteries, rechargeable
batteries or external power supply; suitable for office and onsite
measurements
2. Easy, rapid and precise measurement by pressing one button
for testing and immediate display SPD data features
3. While MOV testing, a buzzer will sound if the deviation of
break-over voltage exceeds the default value by ± 5%.
4. While MOV testing, a buzzer will sound if the leakage current
exceeds 20 μA.
5. Applied to testing both MOV-type and GDT- type SPDs
6. Precise break-over voltage test under the constant current
1mA
7. Precise leakage current test under 75% of the break-over
voltage
8. The voltage of the tester can be boosted up to 1000V DC
9.Convenient multimeter calibration methods
Conformity of Test Result
The breakover voltage of surge protective device refers to the value of the voltage which is tested when 1mA current flows
through the surge protective device while the testing voltage is boosted.
Since only the value of Uc is marked on the label of a surge protection product, the breakover voltages of the products
specified in corresponding with the Uc values by different manufacturers during actual production maybe vary. The
following are the parameters of "Watchful Eye" surge protective devices for reference.
Power Supply System Uc U1mA Surge Protector Testing
110V 、 120/208V 150V 257-298V WTH-40/C/R/1P-150
220/380V 275V 447-518V WTH-40/C/R/1P-275
220/380V 、 277/480V 385V 590-683V WTH-40/C/R/1P-385
347/600V 550V 780-903V WTH-40/C/R/1P-550
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Portable Surge Protective Device Tester
Convenient Testing Operation
Ⅰ. Rapid testing methods for voltage-limiting type(MOV-type) SPDs:
Choose FUNCTION 1, press TEST button, Break-over Voltage and Leakage Current will display on the screen.
Ⅱ. Rapid Testing methods for switch-type(GDT-type) SPDs:
Choose FUNCTION 6, press the testing button, “Breakdown Voltage” will display on the screen.
Technical Specification of WTH-CS/BT-1000V:
Range of break-over voltage for testing Un(U1mA): 120~200 +/-5V, 200~1000V +/-2.5%
Range of leakage current for testing: 0~20.0uA +/-0.5uA, 20.0~25.0uA +/-2.5%
FUNCTION 1 testing mode: for testing voltage-limiting type SPDs, break-over voltage and leakage current will display in
about 2.5 seconds.
Range of breakdown voltage for testing: 0~1000V, ±2.5%, ±5V(120-1000V)
FUNCTION 6 testing mode: for testing switch-type SPDs, boost the DC voltage step by step at a rate of 100V/second for
an accurate measurement of breakdown voltage.
Minimum resolution of the break-over Voltage: 1V
Minimum resolution of the leakage current: 0.1μA
Operation temperature: 32°F ~ +122°F (0°C ~ +50°C)
Power supplies: four AA1.2V rechargeable batteries, four AA1.5V batteries or DC 5V 2A power supply adapter
Weight: 570g/1.26 lb (Without accessories)
Dimensions: 245mm×120mm×50mm(9.65in×4.72in ×1.97in)
Accessories Dimensions
1. banana head test cable; 2. pin test pen; 3. crocodile clip
4. USB to DC 5.5mm*2.1mm
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