Data Sheet
AMB-55, AMB-110
High Voltage Digital
Megohmmeters – Insulation
Resistance Testers
Amprobe Industrial High-Voltage Insulation Testers have
all necessary features for advanced professional insulation
diagnostics. Automated calculation of PI, DD and DAR, combined
with a possibility to perform a step voltage test make these
instruments suitable for the most demanding customers and
applications. Large LCD display allows real time R(t) graphs to be
displayed. Windows compatible PC Software and either RS232 or
USB communications ports serve for connecting the instrument to
the PC and management of the recorded test data.
Test insulation of wires, cables, transformers, motors, surge
arrestors and generators
Selectable testing voltages - one testing instrument for low
and high voltage systems:
AMB-55 from 250V to 5000V with 25V increments
AMB-110 from 500V to 10,000V with 25V increments
Insulation resistance measurement up to 10TΩ
R(t) graph - Real time resistance against time graph plotting
facility to graphically illustrate the response of a material to
an applied test voltage
User selectable Programmable Timer (1s to 99 min)
Automatic discharge of test object after completion of
measurement
Capacitance Measurement
Diagnostic tools
Polarization index (PI)
Dielectric discharge (DD)
Dielectric Absorption Ratio (DAR) with automated
resistance ranging (AR).
Step voltage test - Insulation resistance will be measured
at five different, equality sequenced test voltages for in-depth
insulation system diagnostics
No hassle
warranty
No waiting.
No shipping
charges.
Our commitment to
high-quality products
and customer service
is demonstrated by
our industry exclusive
“No Hassle” warranty.
In the unlikely event
that an Amprobe Test
Tool requires warranty
service, any of our
local dealers are
authorized to replace
it, on the spot.
(note: $500 MSLP limit)
Amprobe® Test Tools
www.Amprobe.com
AMB-55, AMB-110
High Voltage Digital Megohmmeters – Insulation Resistance Testers
Data Sheet
All parameters can be measured and displayed in one single measurement.
High charging capacity - With 5 mA charging current insulation systems up to 50 μF can be
quickly charged and tested.
High EM (noise) immunity - Built in noise rejection filters and shielded test leads supplied in a
standard set make the instrument suitable for accurate insulation testing in environments with
high EM interferences like HV switchyards or similar environments
Handy, rugged carrying case
Dual power source – receptacle or rechargeable batteries
Built in internal memory storing 1000 measurements with time and date
CAT IV 600V overvoltage category for industrial applications
General Specifications
Feature
Insulation Resistance
AMB-55
AMB-110
Accuracy
±(5% rdg + 3 dgts) below 1TΩ
±(15% rdg + 3 dgts) @ 1TΩ and
above
0 – 999 kΩ
1.00 – 9.99, 10.0 – 99.9, 100 – 999 MΩ
1.00 – 9.99, 10.0 – 99.9, 100 – 999 GΩ
1.00 – 10.00 TΩ
250 V to 5 kV, steps by 25 V
0 – 5500V
500 V to 10 kV, steps by 25 V
0 – 9999V
10kV
Current Display Range
0.00 – 9.99, 10.0 – 99.9, 100 – 999 nA
1.00 – 9.99, 10.0 – 99.9, 100 – 999 μA
1.00 – 5.5 mA
0 – 99.9
0 – 99.9
0 – 99.9
0 – 5.50 mA
0 – 600V
0.0– 99.9, 100 – 999 nF
1.00 – 50.00 μF
300 kΩ
6 x 1.2V Ni-MH, IEC LR14
31 x 13 x 25 cm (12 x 5 x 10 in)
3 kg (6.6 lb)
425 kΩ
6 x 1.2V Ni-MH, IEC LR20
36 x 16 x 33 cm (14.2 x 6.3 x 13 in)
5.5 kg (12.1 lb)
90 - 260VAC, 45 - 60 Hz, 60VA
±(3% rdg + 3V)
±(3% of reading)
±(5% rdg + 0.05 nA)
±(5% rdg + 2 dgts)
±(5% rdg + 2 dgts)
±(5% rdg + 2 dgts)
±(5% rdg + 2 dgts)
±(3% rdg + 4V) @ 45 to 65Hz
and DC
±(5% rdg + 4 nF)
±10%
DC Test Voltage and Step Voltage
Display Range Test Voltage
Dielectric Absorption Ratio (DAR)
Polarization Index (PI)
Dielectric Discharge Test (DD)
Leakage Current Display Range
External Voltage Measurement
Capacitance Measurement
Discharging Resistance
Mains Power Supply
Battery Power Supply
Dimension (w x h x d)
Weight (without accessories,
with batteries)
Amprobe® Test Tools
website: www.Amprobe.com
email: info@amprobe.com
Everett, WA 98203
Tel: 877-AMPROBE
Amprobe® Test Tools Europe
In den Engematten 14
79286 Glottertal, Germany
Tel.: +49 (0) 7684 8009 - 0
©2011 Amprobe Test Tools. All rights reserved.
4/2011 4039992 Rev A
Amprobe® Test Tools
www.Amprobe.com
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