Datasheet

DET14C AND DET24C
Digital Earth Clamps
SPECIFICATIONS
Resistance measurements
Ground resistance Resolution Intrinsic
range certainty
0.05 Ω to 0.99 Ω 0.01 Ω ±1.5% ±0.05 Ω
1.00 Ω to 9.99 Ω 0.01 Ω ±1.5% ± 0.1Ω
10.0 Ω to 99.9 Ω 0.1 Ω ±2% ±0.5 Ω
100.0 Ω to 199.9 Ω 0.1 Ω ±5% ±1 Ω
200 Ω to 400 Ω 1 Ω ±10% ±10 Ω
400 Ω to 600 Ω 1 Ω ±10% ±10 Ω
600 Ω to 1200 Ω 10 Ω ±20%
1200 Ω to 1500 Ω 10 Ω ±35%
n Frequency of measurement 1390 Hz.
Alarm settings
Alarm type Range Resolution
Threshold 1 1 Ω to 1500 Ω 1 Ω
Threshold 2 1 Ω to 1500 Ω 1 Ω
Current measurements (RMS)
Current range Resolution Intrinsic
Certainty
0.5 mA to 0.99 mA 0.01 mA ±2% ±0.05 mA
1.00 mA to 9.99 mA 0.01 mA ±2% ±0.05 mA
10.0 mA to 99.9 mA 0.1 mA ±2% ±0.1 mA
100 mA to 999 mA 1 mA ±2% ±1 mA
1.00 A to 9.99 A 0.01 A ±2% ±0.01 A
10.0 A to 35.0 A 0.1 A ±2% ±0.1 A
n True RMS readings up to a crest factor of 5.0
(peak current 40 A).
n Accuracy guaranteed for 50 Hz and 60 Hz.
n Measurement over the range 16 Hz to 400 Hz.
n Maximum current is 100 A rms continuous and 200 A rms
for 60 s max at 50 Hz and 60 Hz
Maximum jaw opening 39 mm
Maximum jaw inner
dimensions 39 mm x 55 mm
Display type 4 + 6 digit with backlight
Battery type 4 x 1.5 V IEC LR6/AA alkaline
Battery life 24 hours continuous testing –
see Note 1
Auto power down 300 s (reset by jaw action or button
press)
Data logging DET14C 256 records
DET24C 2 k records
Data download Opto-coupled IrDA-USB interface
(DET24C only)
Range selection Automatic within each mode
Sample time <1 s
Hold function Yes with visual indicator
Alarm function Yes with visual indicator
Warning buzzer Yes
Operating temperature
and humidity -20 °C to +50 °C, <85% RH
Storage temperature
and humidity -40 °C to +60 °C, <75% RH
Weight 985 g
Instrument dimensions 248 mm (l) x 114 mm (w) x
49 mm (h)
IP rating IP30 with jaws closed
Note 1: Whilst measuring a 25 Ω resistance without backlight
Performance
IEC 61557-5
IEC 61557-13 Class 1
Safety
EN 61010-2-032
CATIV 600 V
Pollution degree 2
EMC
Class B Compliant, IEC 61326, BSEN 61326