Megger’s DET4TCR2 4 Terminal Ground Resistance Tester is built with all the features and functions of the DET4TC2 but utilizes rechargeable battery power.
0.01 to 200 kΩ autoranging (0.01 to 20kΩ for models DET4TD2 and DET4TR2)
Resistance accuracy:
2P measurements
2% ±3 digits
3P measurements
2% ±3 digits
4P measurements
2% ±3 digits
ART measurements
5% ±3 digits
Stakeless measurements
7% ±3 digits
Maximum probe resistance:
DET4TD2 and DET4TR2
Rp limit: 100kΩ (50V output voltage) Rc limit: 100kΩ (50V output voltage) Limits reduced to 50kΩ for 25V output voltage Limits reduced to 5kΩ for 0.01 Ω resolution
DET4TC2 and DET4TCR2
Rp limit: 200kΩ (50V output voltage) Rc limit: 200kΩ (50V output voltage) Limits reduced to 100kΩ for 25V output voltage Limits reduced to 5kΩ for 0.01 Ω resolution
Earth voltage range:
0 – 100 V
Earth voltage accuracy:
2% ±2 V
2-wire test:
Yes, all models
3-wire test:
Yes, all models
4-wire test:
Yes, all models
ART (Attached Rod Technique):
DET4TC2, DET4TCR2
Stakeless test:
DET4TC2 and DET4TCR2
Ground current range (with current measuring clamp):
0.5 mA to 19.9 A
Ground current accuracy:
5% ±3 digits
Display: DET4TD2 and DET4TR2: 3-1/2 digit high contrast LCD DET4TC2 and DET4TCR2: 3-1/2 digit high contrast LCD, backlit
Test frequency:
94, 105, 111 and 128 Hz (128 Hz for DET4TD2 and DET4TR2)
Test voltage:
25 V or 50 V, user selectable (factory setting 50 V)
Test current:
450 micro-amps at 25 V or 50 V (selectable), 4.5 mA at 25 V
Noise rejection:
40V pk to pk
Noise check:
Automatic
C spike check:
Automatic
P spike check:
Automatic
Battery type:
8 1.5 V AA cells (8 1.5 V AA NiMH rechargeable cells – DET4TR2 and DET4TCR2)
Battery life:
3 hours, 700 consecutive tests
Safety:
EN61010-1 CAT IV 100 V
Terminals:
4 mm plug type (test leads)
Ingress protection:
IP54
EMC:
Meets the requirements of EN61326-1:1998 for use in heavy industrial areas, including amendment 1
Dimensions:
8 x 5.7 x 3.2 in. (203 x 148 x 78 mm)
Weight:
2.2 lb (1 kg)
Operating temperature range:
5º to +131º F (-15º to +55º C)
Storage temperature range:
-40º to +158º F (-40º to +70º C)
Humidity:
95% RH non-condensing at 104º F (40º C)
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