MEGGER DET14C Digital Earth Clamp

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