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Clamp Meter
Clamp Meter

GAOTek H/L Voltage Clamp Meter and Detector

ID: GT00YA00ZY
Category:

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Overview

The GAOTek H/L Voltage Clamp Meter and Detector is designed for measuring high voltage currents. Adopting the latest CT technology and integrated mask digital technology, it is a special use clamp meter with features a high-voltage insulation rod, wireless transmission of test data, and wireless receivers which can receive measured data within 0.01 mi (30 m) line. If not using an insulation rod, it can be also used as a high precision, low-voltage clamp meter or an alternating current meter which can accurately measure 0.1 mA of current or leakage current. The voltage detector is connected with the insulation rod, which can be used for measuring high voltage currents below 60 KV, on-line current measurement, and peak maintenance. The insulation rod is light and convenient with advantages such as moisture resistance, heat resistance, impact resistance, bend resistance, high insulation, and flexibility.

Key Features

  • Current clamp applies the latest CT technology and Magnetic Shielding Technology, almost free of the influence of external magnetic field, ensuring continuous monitoring of year round high accuracy
  • The special clamp ammeter can facilitate clamp to exit the tested lead by pressing or pulling back insulation bar, which is time efficient and convenient.
  • Wireless transmission can receive the measured data by penetrating storey building barriers within 0.01 mi (30 m)
  • Data hold or memory function.

Technical Specifications

Function High voltage AC current measurement, low voltage AC current, leakage current measurement, on-line AC current supervision.
Power Supply DC6 V Alkaline Dry Battery (1.5 V AAA X 4)
Test Method Clamp CT, Integral Method
*Transmission Method B Model: Wireless Transmission, the maximum distance for direct transmission is about 30m.
Display Mode 4 digital LCD display, backlight function, suitable for dark place.
LCD Dimension 1.85 in × 0.11 in (47 mm × 28.5 mm)
Meter Dimension (W/H/T) 2.99 in × 10.03 in × 1.22 in (76 mm × 255 mm × 31 mm)
Clamp Diameter 1.88 in (φ48 mm )
Sampling Speed About 2 times/second
Range of measurement 0.0 mA~1000 A(  50 Hz/60 Hz Auto Identification)
Resolution 0.1 mA
Shift 0.0 mA~1000 A  Automatic Shift
Test Accuracy(23℃±5℃,Below 80%RH)

 

0.0 mA~299 mA:     ±1 % ±3 dgt
0.30 A~49.9 A:       ±1.5 % ±5 dgt
50.0 A~199.9 A:      ±2.0 % ±5 dgt
200 A~600 A:        ±3 % ±5 dgt
601 A~1000 A:       ±4 % ±5 dgt
Weight Tester: About 0.73 oz (335 g) (Including battery), total quality of meter: about 5.51 lbs (2.5 Kg) (including insulation rod and battery.)
Work Temperature and Humidity 14 °F ~ 104 °F (-10 °C ~40 °C); Below 80 %RH
Storage Temperature and Humidity 14 °F ~ 140 °F (-10 °C ~60 °C); Below 70 % RH

Additional Specifications

Insulated Rod Dimension φ32 mm,1 m/Section (5 Sections)
Insulation Intension AC 100 KV/rms (Between insulation rod and clamp core)
Structure Anti-Dripping Type II
Data Storage 99 Groups, during storage, the symbol “MEM” gives indication, “FULL” mark will flash to indicate the memory has been full.
Circuit Voltage Test for the circuit below 60 KV (operated with insulation rod)
Peak Maintenance Automatically maintain the height of the test value, usually in the test mode press PEAK key, PEAK lights, that is, to keep open the PEAK function, then press PEAK key to cancel this function
Data Preservation Under general test mode, press HOLD button to preserve data, “HOLD” symbol display. then press HOLD Key to cancel this function
Data Access “MR” symbol indicates, it can read the stored data by turning upwards and downwards.
Overflow Display Exceed measurement range overflow function: “OL  A” symbol display
* No signal Indication When the receiver has not received transmit signal, it will display “no- -”symbol
Auto Shut Down About 15 minutes after booting, the meter will shut down automatically, in order to decrease the battery consumption.
Battery Voltage When the battery voltage is below 4.8 V, the symbol of battery voltage“      ” will show to remind to replace battery.

 1. Structure

  1. Double input toroid (including the boot area)
  2. Tester
  3. LCD Display
  4. PEAK Test Indication
  5. PEAK Key
  6. POWER Key
  7. HOLD Key
  8. Receiver
  9. Insulation Rod Connector
  10. POWER Indication
  11. Testers

2. LCD Display

2.1. LCD Display Screen

  1. AC symbol
  2. Low battery symbol
  3.  Date storage symbol
  4.  Date access symbol
  5. 2-digit storage data serial number
  6. Unit symbol
  7. Date locked symbol
  8. Decimal system radix point
  9. 4-Digit LCD digital display

2.2. Explanation for Special Symbols

  • Low battery symbol, when the voltage of battery is lower than 4.8 V, this symbol display, please replace battery in time.
  • “OL A” This symbol indicates that the current on test has exceeded the maximum measurement limit of the meter.
  • MEM” Memory mode, it will display during the data storage process.
  • “Full” symbol, when the storage memory has been filled with 99 groups of data, it will display “FULL” symbol by flash, which means it cannot continue to store data.
  • MR” data access symbol, which is displayed during looking up data, meanwhile, it will display the serial number of data in storage.
  • “End” exit symbol, it will display during the exit.
  • “dEL” data delete symbol, it will display when deleting data.
  • “no- -” None received signal instructions, dynamic display, it may not in test mode, or adjust the location and distance from receiver.

3. Display Demonstration

. ——The current on test is 0.002A (2 mA)    

⑵. ——Locked display Data

——The data is automatic stored as group 3      

——The current on test is: 160.5 A

⑶.——The current on test is: 571 A                      

——Low battery symbol, please replace.

⑷.——Look up data of group 3 in storage           

——The current on test is: 160.5 A

⑸.—— “FULL” flash display:

Storage is full of 99 groups                       

——It can’t store more unless delete storage

⑹.——“dEL” Indication of data delete                     

⑺.—— “End” Indication of exit                                  

*⑻.——“no- -”Dynamic display: none received signal  

A. Tester Operation

1. Power On/Off

Press POWER button to power on, the instrument will displays the LCD screen, entering normal testing mode. If LCD display is relatively dark after power on, it is possible that battery voltage is a bit lower. Please replace battery. 15 minutes after powering on the meter, if it remains idle, an auto-power off procedure starts to preserve the battery life and LCD will continue flash until the complete switch off takes place after 30 seconds. In case of LCD continuous flash, press POWER button, then the meter will continue to work.

Under HOLD mode, press POWER button for power off.

Under general test mode, press POWER button to power off.

Under PEAK testing mode, press POWER button to power off. Under data reference mode, firstly press POWER button for more than 3 seconds to exit from data reference mode, returning to normal test mode, then press POWER button to power off. During the exit from data access, it will display “End” symbol.

2.General Test

General Test: In the process of test, LCD will display the tested current value real time, and LCD data will vary with the current change. When the tester is removed away from the lead on test, it does not preserve the test result, LCD display will return to zero.

In normal testing mode, it is suitable for close distance measurement, convenient for circuit test by direct read of LCD data.

After normal boot, place the lead in the middle of clamp transducer domain, as shown in Figure A, with the meter transducer domain perpendicular to the lead, pushing the meter forwards to clamp the lead on test, showing the result on LCD display. If showing “OL A”, it means the lead current on test has exceeded the maximum volume on the level. Please select a higher gear level or a meter with greater measurement limit.

To pull backwards can make the meter remove from the lead on teat, as shown in Figure C, please try to keep the meter transducer domain perpendicular to the lead when moving away .

Under HOLD mode, press HOLD button to cancel HOLD function, and return to normal testing mode.

Under data reference mode, press POWER button for more than 3 seconds to exit from data reference mode, returning to normal testing mode.

Under PEAK testing mode, press POWER button to exit from PEAK testing mode, returning to normal testing mode.

After data deletion, it will return to normal testing mode automatically.

3. PEAK Test

PEAK test: the maximum current test. The meter will make automatic comparison on the changes in measured current, indicating the maximum value and maintain it, when the meter is removed away from the lead on test, the test result will be kept consistently, suitable for the circuit test on those LCD data hard to be read directly.

Under the normal testing mode, press PEAK button, PEAK indication light will be bright, enter PEAK testing mode. That means the meter will display and automatically keep the maximum value in the test.

Under any other mode, it must be returned to normal testing mode, and then make PEAK testing according to the above operation.

Press POWER button to exit from PEAK testing mode, returning to normal testing mode, and it will display “End” symbol during the exit.

4. Data Maintenance

Under normal testing mode, press HOLD button to keep LCD display, “HOLD” symbol displays. Press HOLD button again to release data lock, returning to normal testing mode, and “HOLD” symbol disappears.

5. Data Memory

Under normal testing mode, press HOLD to storage data, at the same time, Meter will automatically form serial numbers, and memory the current preserved data. During the storage, “MEM” symbol will show once by flash. This meter can memory 99 groups of data, in case of full storage, “FULL” symbol will display by flash continuously, and it cannot continue to memory until cleaning out the previous memory.

6. Data Reference

Under normal testing mode, press PEAK + POWER button to enter data reference mode, displaying “MR” symbol, meanwhile, it will automatically display data saved in the group 01. Then press PEAK or POWER button to read the stored data by turning upwards or downwards in cycle. It will return to the group 1’s data automatically after reaching the last group’s data in storage.

Press HOLD button to exit from data reference mode, returning to normal testing mode. During the exit, it will display “End” symbol.

7. Data Deletion

Under data reference mode, press PEAK + POWER button to delete all the data in storage, and return to normal testing mode. During the deletion of data, it will display “dEL” symbol.

*8. Data Transmission

B Type: has the function of wireless data transmission. When the Meter under testing mode, the test result will be transferred to receiver by wireless transmission and the receiver will display test result real time, being clear at a glance.

Only under testing mode, the meter will transmit, If the receiver has not received emission signals, it will display “no – -” symbol dynamically.

B Type: Transferred

: Wireless transmission test data, a straight-line distance of about 30 meters, can penetrate the floor to receive data.

B. Operation of Receiver

  1. Power On/Off

Press POWER button to power on, the instrument will displays the LCD screen, entering normal testing mode. If LCD display is relatively dark after power on, it is possible that battery voltage is a bit lower. Please replace battery. 15 minutes after powering on the meter, if it remains idle, an auto-power off procedure starts to preserve the battery life and LCD will continue flash until the complete switch off takes place after 30 seconds. In case of LCD continuous flash, press POWER button, then the meter will continue to work.

Under HOLD mode, press POWER to power off.

Under data reference, first, press POWER button( for 3 seconds ) to exit data reference mode, then come back to data receive mode, press POWER button once again to power off. During exit from data reference, it will display the symbol of “End”.

  1. Data Reception

After normal power on, the receiver will under receiving mode. If there are emission data, the receiver will display the test result real time. If it has not received any signal, the receiver will search signals constantly, and display “no- –”symbol dynamically.

  1. Data Maintenance

Under Data Reception mod, press HOLD button, keep LCD display, “HOLD” symbol indication. Press HOLD button once again to relieve data lock, return to data reception mode, “HOLD” symbol display.

  1. Data Memory

Under Date Reception mode, press HOLD button to maintain data, meanwhile, the receiver will automatically form serial numbers, and memory the current preserved data. During the storage, “MEM” symbol will display once by flash. The receiver can memory 99 groups of data, in case of full storage, “FULL” symbol will display by flash continuously, and it cannot continue to memory until cleaning out the previous memory.

  1. Data Reference

Under Data Reception mode, press HOLD+POWER button to enter Data Reference mode, “MR” symbol display, meanwhile, it will automatically display data saved in the group 1. Then press HOLD button or POWER button to read the stored data by turning upwards or downwards in cycle. It will return to the group 1’s data automatically after reaching the last group’s data in storage.

Press POWER button for more than 3 seconds to exit from data reference mode, returning to receiving data mode. During the exit, it will show “End” symbol.

  1. Data Deletion

Under data reference mode, press HOLD + POWER button to delete all the data in storage, and return to Data Reception mode. During the deletion of data, it will display “DEL” symbol.

3. Replacing Batteries

  1. When the battery voltage is below 4.8V, the meter will display “ ” symbol, indicating the batteries have no sufficient power content. Please replace batteries.
  2. Power off, to make sure the meter is under the state of power off. To loosen two screws of the battery cover board, open the cover board to replace brand-new qualified batteries on. It should pay special attention on the battery specification and polarity, cover the board well and fasten the two screws.
  3. Press POWER button to check whether the meter can be powered on normally. If not, please repeat the operation according the step 2.

                            

Accessories

Tester 1PCS
  Receiver 1PCS
Insulation Rod (1M/Section) 5 Sections
Meter Box 1PCS
Battery (Alkaline Dry Battery AAA) 4 PCS(*or 8 PCS)
User’s Manual/ Maintenance Card/ Conformity Certificate 1SET

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