Earth Clamps
接地鉗夾
Model : DET24C
The Megger DET24C
* Specification
Resistance measurements
Ground resistance
0.05 Ω to 0.99 x Ω 0.01 Ω
Intrinsic range
±1.5% ±0.05 Ω
Ground resistance
1.00 Ω to 9.99 x Ω 0.01 Ω
Intrinsic range
±1.5% ± 0.1Ω
Ground resistance
10.0 Ω to 99.9 x Ω 0.1 Ω
Intrinsic range
±2% ±0.5 Ω
Ground resistance
100.0 Ω to 199.9 x Ω 0.1 Ω
Intrinsic range
±5% ±1 Ω
Ground resistance
200 Ω to 400 Ω x 1 Ω
Intrinsic range
±10% ±10 Ω
Ground resistance
400 Ω to 600 Ω x 1 Ω
Intrinsic range
±10% ±10 Ω
Ground resistance
600 Ω to 1200 Ω x 10 Ω
Intrinsic range
±20%
Ground resistance
1200 Ω to 1500 Ω x 10 Ω
Intrinsic range
±35%
Frequency of measurement 1390
Alarm settings
Alarm type
Threshold 1
Range
1 Ω to 1500 Ω x 1 Ω
Alarm type
Threshold 2
Range 1 Ω to 1500 Ω x 1 Ω
Current range
(RMS)
Current range
0.5 mA to 0.99 mA x 0.01 mA
Intrinsic Certainty
±2% ±0.05 mA
1.00 mA to 9.99 mA x 0.01 mA
Intrinsic Certainty
±2% ±0.05 mA
10.0 mA to 99.9 mA x 0.1 mA
Intrinsic Certainty
±2% ±0.1 mA
100 mA to 999 mA x 1 mA
Intrinsic Certainty
±2% ±1 mA
1.00 A to 9.99 A x 0.01 A
Intrinsic Certainty
±2% ±0.01 A
10.0 A to 35.0 A x 0.1 A
Intrinsic Certainty
±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
dimensions
39 mm x 55 mm
Display 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
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 range
and humidity
-20 °C to +50 °C, <85% RH
Storage temperature range
and humidity
-40 °C to +60 °C, <75% RH
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
Maximum jaw opening 39 mm
Maximum jaw inner
dimensions
39 mm x 55 mm
Display 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
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 range
and humidity
-20 °C to +50 °C, <85% RH
Storage temperature range
and humidity
-40 °C to +60 °C, <75% RH
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
Maximum jaw opening 39 mm
Maximum jaw inner
dimensions
39 mm x 55 mm
Display 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
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 range
and humidity
-20 °C to +50 °C, <85% RH
Storage temperature range
and humidity
-40 °C to +60 °C, <75% RH
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
Maximum jaw opening 39 mm
Maximum jaw inner
dimensions
39 mm x 55 mm
Display 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
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 range
and humidity
-20 °C to +50 °C, <85% RH
Storage temperature range
and humidity
-40 °C to +60 °C, <75% RH
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
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