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DET4TC2 Product Page
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2, 3 and 4 point testing
IP54 rated
Attached Rod Technique (ART)
Stakeless measurements
User selectable test frequency
User selectable output voltage
Delivered with calibration certificate
Megger's DET4 family of ground testing instruments offers a comprehensive solution to your ground stake and soil resistivity testing needs. The standard instrument comes
with test leads, stakes, terminal adaptors for bare wire, batteries and calibration certificate are delivered in a tough carry case which has space to accommodate all the instrument
accessories - everything you need to start testing in one kit.
The DET4TC2 and DET4TCR2 are designed for extended temperature range use with an IP54 rated enclosure making them genuinely outdoor instruments. The instrument provides all
the functions required for ground system testing: variable frequency 2 pole, 3 pole, 4 pole, Attached Rod Technique (ART), stakeless, leakage current and ground noise voltage measurement.
The instrument is easy to use with a large rotary selector switch and one-press test button, both of which permit operation with gloved hands. Unlike some instruments, the design
negates the need for a shorting link when making two pole measurements. There are no hidden functions with the instrument: clearly labelled auxiliary controls are used to select
the test frequency (94 Hz, 105 Hz, 111 Hz and 128 Hz), output voltage (50 V or 25 V where local standards apply) and to switch the backlight on or off.
The optional ICLAMP augments the traditional fall-of potential measurement method with ART (Attached Rod Technique) which allows electrode testing without disconnection and
also leakage current measurements down to 1 mA. A second optional clamp, the VCLAMP, enables true stakeless measurements to be made in situations where driving stakes is not practical.
The clear, easy-to-read display provides excellent contrast and viewing angle making the instrument ideally suited
to outdoor use. The display is backlit, extending the operational environment of the instrument to cable cellars and other dark locations.
The instrument offers a wide measurement range of 0.01Ω a to 200 kΩ, ground noise voltage measurement from 1 V to 100 V and ground current from 1 mA to 20 A. Accurate
results can be obtained in electrically noisy environments since the instrument is capable of rejecting noise voltages of 40 V peak to peak and the user can select different test frequencies
to minimise the effect of interference.
The DET4TC2 Digital Ground tester is powered from 8 AA batteries, which are widely available and deliver excellent testing time. The DET4TCR2 is powered from rechargeable AA cells.
The battery charger is built in and the instrument is supplied with an AC/DC adaptor. For both instruments, the battery status is display using a bar-graph.
The Megger ground testers comply with stringent safety standards and are rated to 100 V CAT IV. They also have selectable 25 V or 50 V output for compliance with IEC 61557-5.
Specification
Ingress protection
IP54
C stake, P stake and Noise check
Automatic
Noise rejection
40 V pk to pk
2-wire, 3-wire, 4-wire test
Yes, no shorting links required
No disconnect testing (ART)
Yes, with ICLAMP
Stakeless measurement
Yes, with ICLAMP and VCLAMP
Instrument output
Voltage: ±25 V or ±50 V at 94 Hz, 105 Hz, 111 Hz and 128 Hz
Current: 4.5 mA or 0.45 mA or 0.045 mA
Ground current range with clamp
0.5 mA to 19.9 A
Ground current accuracy
5% ±3 digits
Ground voltage range
0 to 100 V ac
Ground voltage accuracy
2% ±2 V
Resistance range
0.01Ω to 200kΩ
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
Rp limit: 200 kΩ (50 V output voltage)
Rc limit: 200 kΩ (50 V output voltage)
Limits reduced to 100kΩ for 25 V output voltage
Limits reduced to 5kΩ for 0.01Ω resolution
Display
31?2 digit high contrast liquid crystal, backlit
Battery type
DET4TC2: 8 off AA (LR6) cells
DET4TCR2: 8 off AA (LR6) NiMH rechargeable cells
Operating temperature range
-15 °C to +55 °C / 5 °F to 131 °F
Storage temperature range
-40 °C to +70 °C / -40 °F to 158 °F
Safety
Complies with the requirements of IEC61010-1 100V CAT IV
between terminal pairs.*
EMC
In accordance with IEC61326-1
Standards Compliance
Complies with the requirements of KEMA K85B
Complies with the following parts of EN61557, "Electrical safety in low voltage distribution systems up to 1000 V a.c. and 1500 V d.c. - Equipment for testing, measuring or monitoring of protective measures"
Part 1 - General requirements
Part 5 - Resistance to earth
Dimensions
203 mm x 148 mm x 78 mm (8 in x 5.8 in x 3 in)
Weight
1kg (2.2lb)
*The CAT IV 100 V rating is dependant on the use of a leadset of at least this rating, for example the optional two wire leadset part number 1001-858.
Included Accessories for DET14C & DET24C
|
Replacement hard carry case
|
5410-429
|
|
|
|
Replacement calibration check PCB
(two-clamp measurements)
|
1000-434
|
|
|
|
Replacement ground test stakes (x2)
for included kit (200 mm, 8 mm diameter)
|
6220-804
|
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|
Replacement ground test leads (x4)
for included kit (15 m, 10 m, 10 m, 3 m)
|
6220-806
|
|
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|
Replacement auger stake
for professional kit
|
6220-839
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|
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Replacement cable reel (50 m, red cable)
for professional kit
|
1000-349
|
|
|
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|
Replacement cable reel (50 m, black cable)
for professional kit
|
1000-350
|
|
|
|
|
Replacement cable reel (30 m, yellow cable)
for professional kit
|
1000-361
|
|
|
|
|
Replacement cable reel (30 m, green cable)
for professional kit
|
1000-843
|
|
|
|
Replacement external AC/DC adaptor
(DET4TCR2 only)
|
6280-370
|
|
|
|
ICLAMP Current clamp and connecting lead
|
1001-012
|
|
|
|
VCLAMP Voltage inducing clamp, calibration check pcb
(for stakeless test) and lead
|
1001-013
|
|
|
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|
Calibration check box (25 Ohm)
|
1000-435
|
|
|
|
Right angle terminal adaptor set
|
6220-803
|
|
|
|
Black crocodile clip (1)
|
6220-850
|
|
|
|
Professional groung testing kit 2 x 50 m, 2 x 30 m,
4 auger stakes, tape measure, in hard carry case
|
6320-245
|
|
|
|
Vehicle 12 V socket charger
(DET4TCR2 only)
|
6220-375
|
|
|
|
“Getting down to earth”
Megger guide to earth ground testing
|
21500-072
|
| Keep up-to-date with the latest documentation for your device. |
| |
| Category |
Title |
Size |
|
| |
| Data Sheet |
The latest information data sheet |
| |
DET4TC2 Data Sheet
|
448 KB |
|
| User Guide |
| |
DET4TC2 User Guide
|
5,558 KB |
|
| |
|
|
|
INTRODUCING THE DET4TC2
2, 3 and 4 point testing
IP54 rated
Attached Rod Technique (ART)
Stakeless measurements
User selectable test frequency
User selectable output voltage
Delivered with calibration certificate
Megger's DET4 family of ground testing instruments offers a comprehensive solution to your ground stake and soil resistivity testing needs. The standard instrument comes
with test leads, stakes, terminal adaptors for bare wire, batteries and calibration certificate are delivered in a tough carry case which has space to accommodate all the instrument
accessories - everything you need to start testing in one kit.
The DET4TC2 and DET4TCR2 are designed for extended temperature range use with an IP54 rated enclosure making them genuinely outdoor instruments. The instrument provides all
the functions required for ground system testing: variable frequency 2 pole, 3 pole, 4 pole, Attached Rod Technique (ART), stakeless, leakage current and ground noise voltage measurement.
The instrument is easy to use with a large rotary selector switch and one-press test button, both of which permit operation with gloved hands. Unlike some instruments, the design
negates the need for a shorting link when making two pole measurements. There are no hidden functions with the instrument: clearly labelled auxiliary controls are used to select
the test frequency (94 Hz, 105 Hz, 111 Hz and 128 Hz), output voltage (50 V or 25 V where local standards apply) and to switch the backlight on or off.
The optional ICLAMP augments the traditional fall-of potential measurement method with ART (Attached Rod Technique) which allows electrode testing without disconnection and
also leakage current measurements down to 1 mA. A second optional clamp, the VCLAMP, enables true stakeless measurements to be made in situations where driving stakes is not practical.
The clear, easy-to-read display provides excellent contrast and viewing angle making the instrument ideally suited
to outdoor use. The display is backlit, extending the operational environment of the instrument to cable cellars and other dark locations.
The instrument offers a wide measurement range of 0.01Ω a to 200 kΩ, ground noise voltage measurement from 1 V to 100 V and ground current from 1 mA to 20 A. Accurate
results can be obtained in electrically noisy environments since the instrument is capable of rejecting noise voltages of 40 V peak to peak and the user can select different test frequencies
to minimise the effect of interference.
The DET4TC2 Digital Ground tester is powered from 8 AA batteries, which are widely available and deliver excellent testing time. The DET4TCR2 is powered from rechargeable AA cells.
The battery charger is built in and the instrument is supplied with an AC/DC adaptor. For both instruments, the battery status is display using a bar-graph.
The Megger ground testers comply with stringent safety standards and are rated to 100 V CAT IV. They also have selectable 25 V or 50 V output for compliance with IEC 61557-5.
Specification
Ingress protection
IP54
C stake, P stake and Noise check
Automatic
Noise rejection
40 V pk to pk
2-wire, 3-wire, 4-wire test
Yes, no shorting links required
No disconnect testing (ART)
Yes, with ICLAMP
Stakeless measurement
Yes, with ICLAMP and VCLAMP
Instrument output
Voltage: ±25 V or ±50 V at 94 Hz, 105 Hz, 111 Hz and 128 Hz
Current: 4.5 mA or 0.45 mA or 0.045 mA
Ground current range with clamp
0.5 mA to 19.9 A
Ground current accuracy
5% ±3 digits
Ground voltage range
0 to 100 V ac
Ground voltage accuracy
2% ±2 V
Resistance range
0.01Ω to 200kΩ
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
Rp limit: 200 kΩ (50 V output voltage)
Rc limit: 200 kΩ (50 V output voltage)
Limits reduced to 100kΩ for 25 V output voltage
Limits reduced to 5kΩ for 0.01Ω resolution
Display
31?2 digit high contrast liquid crystal, backlit
Battery type
DET4TC2: 8 off AA (LR6) cells
DET4TCR2: 8 off AA (LR6) NiMH rechargeable cells
Operating temperature range
-15 °C to +55 °C / 5 °F to 131 °F
Storage temperature range
-40 °C to +70 °C / -40 °F to 158 °F
Safety
Complies with the requirements of IEC61010-1 100V CAT IV
between terminal pairs.*
EMC
In accordance with IEC61326-1
Standards Compliance
Complies with the requirements of KEMA K85B
Complies with the following parts of EN61557, "Electrical safety in low voltage distribution systems up to 1000 V a.c. and 1500 V d.c. - Equipment for testing, measuring or monitoring of protective measures"
Part 1 - General requirements
Part 5 - Resistance to earth
Dimensions
203 mm x 148 mm x 78 mm (8 in x 5.8 in x 3 in)
Weight
1kg (2.2lb)
*The CAT IV 100 V rating is dependant on the use of a leadset of at least this rating, for example the optional two wire leadset part number 1001-858.
Included Accessories for DET14C & DET24C
|
|
Replacement hard carry case
|
5410-429
|
|
|
|
|
Replacement calibration check PCB
(two-clamp measurements)
|
1000-434
|
|
|
|
|
Replacement ground test stakes (x2)
for included kit (200 mm, 8 mm diameter)
|
6220-804
|
|
|
|
|
Replacement ground test leads (x4)
for included kit (15 m, 10 m, 10 m, 3 m)
|
6220-806
|
|
|
|
|
Replacement auger stake
for professional kit
|
6220-839
|
|
|
|
|
Replacement cable reel (50 m, red cable)
for professional kit
|
1000-349
|
|
|
|
|
Replacement cable reel (50 m, black cable)
for professional kit
|
1000-350
|
|
|
|
|
Replacement cable reel (30 m, yellow cable)
for professional kit
|
1000-361
|
|
|
|
|
Replacement cable reel (30 m, green cable)
for professional kit
|
1000-843
|
|
|
|
|
Replacement external AC/DC adaptor
(DET4TCR2 only)
|
6280-370
|
|
|
|
|
ICLAMP Current clamp and connecting lead
|
1001-012
|
|
|
|
|
VCLAMP Voltage inducing clamp, calibration check pcb
(for stakeless test) and lead
|
1001-013
|
|
|
|
|
Calibration check box (25 Ohm)
|
1000-435
|
|
|
|
|
Right angle terminal adaptor set
|
6220-803
|
|
|
|
|
Black crocodile clip (1)
|
6220-850
|
|
|
|
|
Professional groung testing kit 2 x 50 m, 2 x 30 m,
4 auger stakes, tape measure, in hard carry case
|
6320-245
|
|
|
|
|
Vehicle 12 V socket charger
(DET4TCR2 only)
|
6220-375
|
|
|
|
|
“Getting down to earth”
Megger guide to earth ground testing
|
21500-072
|
| Keep up-to-date with the latest documentation for your device. |
| |
| Category |
Title |
Size |
|
| |
| Data Sheet |
The latest information data sheet |
| |
DET4TC2 Data Sheet
|
448 KB |
|
| User Guide |
| |
DET4TC2 User Guide
|
5,558 KB |
|
| |
|
|
|
INTRODUCING THE DET4TC2
|
|
|
 |
|
 |
|
|