Megger Megohmmeters Specifications
5- and 15-kV
Megohmmeters
5- and 15-kV
Megohmmeters
■
Continuously variable test voltage
■
Rugged field construction
■
Circuit-breaker protection
DESCRIPTION
The 5- and 15-kV Megohm-meters are high-voltage, lineoperated instruments. They provide a continuously
variable test voltage for highly sensitive insulationresistance measurements of all types of electrical
equipment and power cable.
The instruments are designed to withstand harsh field
conditions, and feature tough, impact-resistance casing,
removable lids and adjustable carrying straps. For
complete portability, there is ample room in each case to
store cables and the instruction manual.
APPLICATIONS
The units are suitable for dielectric absorption and stepvoltage testing. Two models are available:
The 5-kV Megohmmeter measures up to 100,000 MΩ;
provides output from 250 volts to 5 kV, with direct reading
up to 50,000 MΩ at 2.5 kV.
The 15-kV Megohmmeter provides direct reading
measurements up to 100,000 MΩ at 5 kV and up to
200,000 MΩ at 10 kV, with a multiplying factor for all
other voltages up to 15 kV.
The 15-kV model also features an internal voltage
stabilizer that may be activated for improved measurement
under extreme field conditions. Separate on/off controls
are provided for power and high voltage, and a red light
indicates when high voltage is on.
FEATURES AND BENEFITS
■
Provides 2% kV and MΩ accuracy Guard terminal to
eliminate surface leakage current from the measurement
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Zero-start, high-voltage interlock
■
Shielded, high-voltage output cable permanently
connected to the instrument
■
Circuit-breaker protection
■
Redundant grounding connections
■
Easy-to-follow, color-coded meter scales
■
Analog metering for monitoring of variable
measurements
■
Rugged field construction
5- and 1-kV
Megohmmeters
Item (Qty) Cat. No.
5 kV Megohmmeter 210400
15 kV Megohmmeter 210415
Included Accessories
Ground connection cable, 10 ft [3 m] 4702
Test record card, universal 210954
Power cord, for Cat. No. 210415 17032
Instruction manual for 5-kV model AVTM21-40JA
Instruction manual for 15-kV model AVTM21-415JA
ORDERING INFORMATION
5-kV Model, Cat. No. 210400
Input Voltage
120 Vac, 60 Hz
Test Voltage
0 to 5 kVdc, negative with respect to ground
Output Current
5 mA continuous
Short-Circuit Current
12 mA max.
Instrumentation
Kilovoltmeter: 4.5-in. (114-mm) taut band
Three Color-Coded Scales
Red: 0 to 2.5 kV
Black: 0 to 5 kV
Green: 0 to 1 reference
Accuracy: ±2% full scale
Megohmmeter
4.5-in. (114-mm) taut band
Two Color-Coded Scales
Red: 0.5 to 50 MΩ
Black: 1 to 100 MΩ
Accuracy: ±0.031 in. (0.08 cm) at any marking
Operating Temperature Range
0 to 122º F (–17.7 to +50º C)
15-kV Model, Cat. No. 210415
Input Voltage
120 Vac, 60 Hz
Test Voltage
0 to 15 kVdc, negative with respect to ground
Output Current
2 mA continuous (stabilizer out)
50 µA continuous (at 15 kV, stabilizer in)
Short-Circuit Current
12 mA max.
Instrumentation
Kilovoltmeter: 4.5-in. (114-mm) taut band
Three Color-Coded Scales
Red: 0 to 7.5 kV
Black: 0 to 15 kV
Green: 0 to 1.5 reference
Accuracy: ±2% full scale
Megohmmeter
4.5-in. (114-mm) taut band
Two Color-Coded Scales
Red: 1 to 100 MΩ
Black: 2 to 200 MΩ
Accuracy: ±0.031 in. (0.08 cm) at any marking
Operating Temperature Range
0 to 122º F (–17.7 to +50º C)
DC Test Megohm Range Multiplier
Cat. No. Model Voltage x1 x10 x100 x1000 Dimensions Weight
2.5 kV dc 0.5 to 50 5 to 500 50 to 5000 500 to 50,000 10 H x 10.2 W x 14 D in. 20.5 lb
210400 5-kV 5 kV dc 1 to 100 10 to 1000 100 to 10,000 1000 to 100,000 254 H x 260 W x 355 D mm 9.3 kg
250 V to 5 kV Multiply MΩ by factor indicated in green
7.5 kV dc 1.5 to 150 15 to 1500 150 to 15,000 1500 to 150,000 12.5 H x 11.5 W x 20.2 D in. 35 lb
210415 15-kV 15 kV dc 3 to 300 30 to 3000 300 to 30,000 3000 to 300,000 317 H x 292 W x 514 D mm 15.9 kg
500 V to 15 kV Actual kV
10
x Range at 10 kV
SPECIFICATIONS
Item (Qty) Cat. No.
Optional Accessories
Test record card, 0 to 1000 GΩ 210959
Test report sheet for rotating equipment 210951-1
Test report sheet for power transformers 210951-2
Test report sheet for power cables 210951-3
Bushing guard spring 217003
“Lowdown on HV DC Testing” manual AVTM22P-1
“A Stitch in Time” manual AVTM21-P8B
UK
Archcliffe Road Dover
CT17 9EN England
T +44 (0) 1304 502101
F +44 (0) 1304 207342
UNITED STATES
4271 Bronze Way
Dallas TX75237-1088 USA
T 800 723 2861 (USA only)
T +1 214 330 3203
F +1 214 337 3038
OTHER TECHNICAL SALES OFFICES
Valley Forge USA, Toronto CANADA,
Mumbai INDIA, Trappes FRANCE,
Sydney AUSTRALIA, Madrid SPAIN
and the Kingdom of BAHRAIN.
Registered to ISO 9001:2000 Reg no. Q 09290
Registered to ISO 14001 Reg no. EMS 61597
MEGOHMMETERS_DS_en_V10
www.megger.com
Megger is a registered trademark
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