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Dear Client
Thank you for Purchasing our SGB-C Digital Voltage Divider.
Please read the manual in detail prior to first use, which will help
you use the equipment skillfully.
company's products continually, so there may be
slight differences between your purchase equipment
and its instruction manual. You can find the changes
in the appendix. Sorry for the inconvenience. If you have further
questions, welcome to contact with our service department.
may bring voltage, when you plug/draw the test wire or
power outlet, they will cause electric spark. PLEASE
CAUTION RISK OF ELECTRICAL SHOCK!
Company Address:
T4，No. 41, High-tech 2 Road，East Lake High-tech Development Zone，
Wuhan
Sales Hotline: 86-27- 87457960
After Service Hotline: 86-27- 87459656
Fax: 86-27- 87803129
E-mail: qiao@hvtest.cc
Website: www.hvtest.cc
Our aim is to improve and perfect the
The input/output terminals and the test column
1
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Summary of Contents for HVTest SGB-C Series
- Page 1 PLEASE CAUTION RISK OF ELECTRICAL SHOCK! Company Address: T4，No. 41, High-tech 2 Road，East Lake High-tech Development Zone， Wuhan Sales Hotline: 86-27- 87457960 After Service Hotline: 86-27- 87459656 Fax: 86-27- 87803129 E-mail: qiao@hvtest.cc Website: www.hvtest.cc...
- Page 2 SERIOUS COMMITMENT All products of our company carry one year limited warranty from the date of shipment. If any such product proves defective during this warranty period we will maintain it for free. Meanwhile we implement lifetime service. Except otherwise agreed by contract.
- Page 3 shock, the grounding conductor must be connected to the ground. Make sure the product has been grounded correctly before connecting with the input/output port. Pay Attention to the Ratings of All Terminals To prevent the fire hazard or electric shock, please be care of all ratings and labels/marks of this product.
- Page 4 －Security Terms Warning: indicates that death or severe personal injury may result if proper precautions are not taken Caution: indicates that property damage may result if proper precautions are not taken.
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Page 5: Table Of Contents
Contents I. Product introduction................6 II. Features....................6 III. Technique parameters ............... 7 IV. Measuring principle................8 V. Panel layout..................9 VI. Measurement preparation ............... 10 VII. Operation instruction............... 10 VIII. Change battery................12 IX. Notes ....................12 X. Problems and Solutions..............13... -
Page 6: Product Introduction
I. Product introduction This product is an idea device for HV measuring; mostly apply in power system, electronic equipment factory to test frequency AC high voltage and DC high voltage. This product is composed by HV divider and LV display meter. The two parts are connected by the supporting cable. -
Page 7: Technique Parameters
other, safe and reliable. 4. Easy to operate. Uses toggle switch to shift HV/LV, AC/DC, convenient and swift. Four and half LCD directly display the test results, easy and clear. Bring great convenience for field tests. 5. Convenient to carry. Portable structure, the whole machine use aluminum alloy package as case, can easily to disassemble. -
Page 8: Measuring Principle
AC： AC： Low： 1.5% SGB-300C 300kV,DC： 0-20kV,High： 3600 250*250*1900 DC： 300kV 0-300kV 1.0% IV. Measuring principle Figure 1 measuring principle This device uses resistance-capacitance voltage division method to test HV AC & DC, which as shown in figure 1. The left side is high voltage part, uses resistance-capacitance division circuit, which composed by impedance Z1 and Z2. -
Page 9: Panel Layout
（1） V. Panel layout This product is composed by high voltage divider and low voltage display meter. 1. High voltage divider Figure 2 high voltage divider ① equipotential ball ②insulating cylinder of divider ③ ground pole signal sampling ④... -
Page 10: Measurement Preparation
2. Low voltage display meter Figure 3 Low voltage display meter ②signal sampling input ③Power switch ①LCD ④DC/AC selection ⑤High/low gear switching VI. Measurement preparation 1. This device is HV equipment, please make test in open field. 2. Service conditions: Temperature :0~40℃, humidity≤85%RH. - Page 11 start measuring. Note: This instrument has auxiliary earth wire, and there are special earth terminal at the base of high voltage divider, so before each use, earth terminal must be firmly grounded. High-voltage test line must be use high voltage lead and the test line must be elevated, cannot too close to ground.
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Page 12: Change Battery
meter will slowly return to zero, but the high-voltage power supply may have no electricity.) 3. DC high voltage measurement After correct connection, press "power switch” of LV display meter, switch the function switch to DC gear, select “high” gear, DC high voltage can be measured, LCD display value is the measured DC high voltage value. -
Page 13: Problems And Solutions
as not to affect measurement accuracy. 2. Please keep a safe operation distance to ensure operational safety. 3. Check whether all parts are firmly connected, especially ground connection must be solid. 4. After completing the measurement, until the meter returns to zero, it is allowable to enter the site.
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