Tonghui TH2684A Insulation Resistance Meter

by Tonghui
In Stock $2510.00
Tonghui TH2684A Insulation Resistance Meter
TH2684A Precision IR Tester is an intelligent measurement instrument that is used for rapid
measurements on IR properties of electronic parts and components, dielectric materials, equipments, cables, etc.
Large LCD and user friendly menu provide you easier operation.


320x240 dot-matrix LCD
Powerful charging function

High speed measurement : 100meas/sec
High measurement accuracy : +/-2% (< 1T Ohm )
Contact detection function for capacitive components
Measurement range : TH2684 : 10k Ohm to 100T Ohm
Ultra-low leakage current test : minimum current is 10pA, accuracy: 2% +/-2pA
Measurement voltage : 10V-1000V, single-output

Dual outputs (precharge voltage output and test voltage output) can be set.
The precharge voltage output can be set to follow the test voltage output and can be finely adjusted on test voltage. Also the precharge voltage can be set to work in independent mode.
When the test current is less than 10nA, the internal input impedance can be selected between 10k Ohm and
1M Ohm to ensure rapid and accurate test.

Charge current : 2mA , 25mA, 100mA selectable

7 current ranges, manual or auto range mode
4-bin comparison function
Programmable sequence test mode
R-T and I-T Curve test and display mode
Auto store setup parameters
Screen hardcopy to be saved as BMP file to a U disk
Automatically upgrade firmware by a U disk
Selectable Chinese and English operation interfaces
Achieve automatic test system by Handler interface
Support scanning interface for mass tests


Resistance test Range : 10 k Ohm to 100T Ohm

Accuracy Test current : > 100pA: 2%
Test current <= 100 pA : 2% +/- Vtest/2pA

Current test range
Range 1 : 100uA - 1mA ; Internal Input impedance 10 k Ohm
Range 2 : 10uA - 100uA ; Internal Input impedance 10 k Ohm
Range 3 : 1uA - 10uA ; Internal Input impedance 10 k Ohm
Range 4 : 100nA - 1uA ; Internal Input impedance 10 k Ohm
Range 5 : 10nA - 100nA ; Internal Input impedance 10 k Ohm
Range 6 : 1nA - 10nA ; Internal Input impedance 10 k Ohm or 1M Ohm (selectable)
Range 7 : 10pA - 1nA ; Internal Input impedance 10 k Ohm or 1M Ohm (selectable)

Accuracy : 2% +/- 2pA

Measurement voltage
Range : 10 to 1000V, 1V resolution

Accuracy : 2% of readout,or +/- 1V
Source resistance : 200 Ohm
Current limit : 2,25, or 100mA

Voltage Output
Manually turn on or off on front panel, or controlled by built-in timer, or by remote control.
Timing Programmable charge time : 0 to 1000s

Measurement delay : 0 to 1000s programmable
Discharge resistance : 2k Ohm
Discharge time : t = 0.03 x Cx (in μF), when Vtest falls to 1% of the test level.