HIGH VOLTAGE INSULATION TESTER

KEW 3128

Test Voltage 12kV (max), Resistance 35TΩ (max)

Test Voltage 12kV (max), Resistance 35TΩ (max)
Short-Circuit Current 5mA (max)
Graphic representation of the insulation resistance and leakage current versus time on large display with bar graph and backlight
Print Screen Function enables to record up to 32 display screens
Internal Memory can store about 43,000 data (max)
Can be operated from internal rechargeable battery or from AC line
Robust design for field use with IP64 rating (with lid closed)

Specification

Insulation resistance
Test voltage	500V	1000V	2500V	5000V	10000V	12000V
Max measurement value	500GΩ	1TΩ	2.5TΩ	5TΩ	35TΩ
Accuracy	400kΩ to 50GΩ ±5%rdg±3dgt	800kΩ to 100GΩ ±5%rdg±3dgt	2MΩ to 250GΩ ±5%rdg±3dgt	4MΩ to 500GΩ ±5%rdg±3dgt	8MΩ to 1TΩ ±5%rdg±3dgt
	50.1 to 500GΩ ±20%rdg(*)	101G to 1TΩ ±20%rdg	251G to 2.5TΩ ±20%rdg	501GΩ to 5TΩ ±20%rdg	1.01 to 10TΩ ±20%rdg
	50.1 to 500GΩ ±20%rdg(*)	101G to 1TΩ ±20%rdg	251G to 2.5TΩ ±20%rdg	501GΩ to 5TΩ ±20%rdg	10.1 to 35TΩ
Short circuit current	Max 5.0mA
Load resistor to output rated voltage	0.5MΩ or more	1MΩ or more	2.5MΩ or more	5MΩ or more	20MΩ or more	24MΩ or more
Output voltage
Rated voltage	500V	1000V	2500V	5000V	10000V	12000V
Monitor accuracy	±10%±20V
Output accuracy	0 to +20%	0 to +10%			-5 to +5%
Selectable range	50 to 600V (in steps of 5V)	610 to 1200V (in steps of 10V)	1225 to 3000V (in steps of 25V)	3050 to 6000V (in steps of 50V)	6100 to 10000V (in steps of 100V)	10100 to 12000V (in steps of 100V)
Voltage measurement
Measuring range	DCV：±30 to ±600V ACV：30 to 600V （50/60Hz）
Accuracy	±2%rdg±3dgt
Current measurement
Measuring range	5.00nA to 2.40mA (Depending on the insulation resistance)
Accuracy	±5%rdg±5dgt
Capactince measurement
Measuring range	5.0nF to 50.0μF				40.0nF to 1.00μF (Display range : 5.0nF to 60.0μF)
Accuracy	±5%rdg±5dgt
General
Applicable standards	IEC 61010-1 CAT IV 600V Pollution degree 2, IEC 61010-2-034, IEC 61010-031, IEC 61326, IEC 60529 (IP64): with the lid closed.
Operating temperature and humidity range	-10ºC , Relative humidity 85% or less 50ºC /(when operating with an external power supply, no condensation) 0 to 40ºC /Relative humidity 85% or less (when operating with battery, no condensation)
Storage temperature and humidity range	-20ºC to 60ºC / Relative humidity 75% or less (no condensation)
Power source	Rechargeable Lead storage battery (12V)* Charging time: approx. 8 hours / AC Power supply (100V to 240V, 50/60Hz) * Continuous measuring time: Approx. 4 hours (a load of 100MΩ at the Insulation resistance 12000V Range.) Approx. 2 hours (Max current consumption in range while rated currents are maintained.)
Dimension	330 (L) × 410 (W) × 180 (D) mm *Instrument and Hard case
Weight	Approx. 9kg (including battery) *Instrument and Hard case
Accessories	7170 (Power cord[EU]) or 7240 (Power cord[UK]) 7224A (Earth cord) 7225A (Guard cord) 7226A (Line probe) 7227A (Line probe with alligator clip) 8029 (Extension prod) 8212-USB (USB adapter) Instruction manual
Optional accessories	7254 (Longer Line probe with alligator clip)