DET4TD2 and DET4TR2
Digital Ground Testers
nIP54 rated
n2, 3 and 4 point testing
nSelectable 25 V or 50 V output
nDry cell or rechargeable versions
nSimple one button operation
nRobust carry case
nDelivered with calibration certificate
DET4TD2 and DET4TR2
Digital Ground Testers
DESCRIPTION
Megger’s DET4 family of ground testing instruments offers a
unique solution to your ground rod and soil resistivity
testing needs. The basic kit option comprises, the
instrument, test leads, stakes, batteries and calibration
certificate delivered in a tough polypropylene carry case -
everything you need to start testing in one kit.
The ground testers are rated to IP54 making it truly an
outdoor instrument. The ground tester has been designed
to be easy to use, a large selector switch makes selection of
2pole, 3 pole or 4 pole test easy with gloved hands - and
the design makes the fitting of shorting links to perform 2
pole tests a thing of the past. A large, clear, easy to read
LCD display and thumb sized test button again makes the
instrument particularly suited to the outdoor conditions of
ground testing.
In addition to this ease of use the ground tester also
automatically checks the connection and condition of the P
spike and the C spike, indicating the status on the display.
The instrument also includes a voltmeter to allow you to
measure the ground voltage. The ground tester can
measure resistance from 0.01 Ωthrough to 20 kΩand earth
voltages up to 100 V
. Toallow testing in noisy environments
the instrument is capable of rejecting noise of up to 40 V
peak to peak.
The DET4TD2 digital ground tester is powered from 8 AA
batteries which are widely available and deliver excellent
testing time. The DET4TR2 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 displayed 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.
OTHER TECHNICAL SALES OFFICES
Norristown USA, Sydney AUSTRALIA,
Toronto CANADA, Trappes FRANCE,
Kingdom of BAHRAIN, Mumbai
INDIA, Johannesburg SOUTH AFRICA
and Conjure THAILAND
UK
Archcliffe Road, Dover
CT17 9EN England
T(0) 1 304 502101
F(0) 1 304 207342
UNITED STATES
4271 Bronze Way
Dallas, TX 75237-1019 USA
T1800 723 2861
T1214 333 3201
F1214 331 7399
ISO STATEMENT
Registered to ISO 9001:2000 Cert. no. Q 09250
Registered to ISO 14001-1996 Cert. no. EMS 61597
DET4TD2_DET4TR2_DS_en_V06
www.megger.com
Megger is a registered trademark
Display:
31⁄2high contrast liquid crystal
Battery type:
DET4TD2 8 off AA (LR6) cells
DET4TR2 8 off AA (LR6) NiMH rechargeable cells
Operating temperature range:
-15 to +55 ºC / 5 ºF to 131 ºF
Storage temperature range:
-40 to +70ºC / -40 ºF to 158 ºF
Safety:
Complies with the requirements of IEC61010-1
100 V 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 x 148 x 78 mm (8 x 5.8 x 3 inches)
Weight: 1kg (2.2lb)
DET4TD2 and DET4TR2
Digital Ground Testers
Item (Qty) Order Code
DET4TD2 Basic kit 1000-347
DET4TR2 Basic kit (rechargeable) 1000-324
“Basic kit” Included Accessories
Hard carry case
Stake and wire kit (15m, 10m, 3m)
External AC/DC charger (rechargeable version only)
DET4TD2 + adaptors
1000-360
DET4TR2 + adaptors (rechargeable)
1000-401
“+ adaptors” included accessories
Hard carry case
Right angled terminal adaptors (to connect bare wires
to terminals)
External AC/DC charger (rechargeable version only)
Item (Qty) Order Code
Accessories
Replacement hard carry case 5410-429
Replacement ground test stakes (x2)
for included kit 200mm, 8mm dia.) 6220-804
Replacement ground test leads (x4)
for included kit (15m, 10m, 10m, 3m) 6220-806
Replacement external AC/DC charger
(DET4TR2 only) 6280-370
Calibration check box (25 ohm) 6220-824
Right angle terminal adaptor set 6220-803
Black crocodile clip (1) 6220-850
Professional ground testing kit
(2 x 50m, 2 x 30m, 4 auger stakes,
tape measure, in hardcarry case 6320-245
Vehicle 12 V socket charger (rechargeable
versions only) 6280-375
‘Getting down to earth’
AMegger guide to earth testing 21500-072
ORDERING INFORMATION
ELECTRICAL SPECIFICATIONS
Ingress protection:
IP54
Cspike, P stake and noise check:
Automatic
Noise rejection:
40 V peak to peak
2-wire, 3-wire test, 4-wire test:
Yes, no shorting links required
Instrument output:
Voltage: ± 25 V or ± 50 V at 128 Hz
Current: 4.5 mA or 0.45 mA
Resistance range:
0.01 Ωto 20 kΩ
Earth voltage range:
0-100 V
Resistance accuracy
2P measurements: 2% ± 3 digits
3P measurements: 2% ± 3 digits
4P measurements: 2% ± 3 digits
Maximum probe resistance:
Rp limit: 100 kΩ(50 V output voltage)
Rc limit: 100 kΩ(50 V output voltage)
Limits reduced to 50 kΩfor 25 V output voltage
Limits reduced to 5 kΩfor 0.01 Ωresolution
Ground voltage range:
0to 100 V a.c.
Ground voltage accuracy:
2 % ±2 V
