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Resistance measurements
Ground resistance Resolution Intrinsic range
uncertainty*
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%
Frequency of measurement 1390 Hz.
* Unless otherwise specified, reference conditions are: 20 ±3°C,
50% humidity, centred conductor.
The specification stated above is only maintained if the Jaws of
the DET14C and DET24C are kept clean at all times.
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 range (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
True RMS readings up to a crest factor of 5.0 (peak current 40 A).
Accuracy guaranteed for 50 Hz and 60 Hz.
Measurement over the range 16 Hz to 400 Hz.
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 39 mm x 55 mm dimensions
Display 4 + 6 digit with backlight
Battery type 4 x 1.5 V IEC LR6/AA alkaline
Battery life 24 hours continuous testing
Note 1: Whilst measuring a 25 Ω
resistance without backlight
Auto power down 300 s (reset by jaw action or button
press)
Data logging DET14C 256 records DET24C
2 k records
Data download Bluetooth® interface (DET24C only)
Range Selection: Automatic within each
mode
Sampling time <1 s
Hold function Yes with visual indicator
Alarm function Yes with visual indicator
Alarm/warning Buzzer: Yes
Operating temperature -20 °C to +50 °C, <85% RH range
and humidity
Storage temperature -40 °C to +60 °C, <75% RH range
and humidity
IP rating IP30 with jaws closed
Safety EN 61010-2-032
CATIV 600 V
Pollution degree 2
EMC Class B Compliant, IEC 61326,
BSEN 61326
Dimensions 248 mm (l) x 114 mm (b) x 49 mm (h)
Weight 985 g
