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Sonel Test Equipment USA

Adapter for poles earth resistance measurement

Adapter for poles earth resistance measurement

Regular price $781.00
Regular price Sale price $781.00
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Flexibility in measurements

The SONEL ERP-1 adapter, in combination with meters that can generate measurement current of 200 mA, serves for measuring of resistance of multiple groundings without disconnecting control connection clamps. The  flexible, big diameter coil allows to measure earth resistance of e.g. transmission towers - including lattice poles - without shutting down the power line.

Ergonomic design of the adapter, its convenient housing and simple operation make earth resistance measurements on transmission towers and pylons quick and problem-free. The protection degree of the adapter is IP67, which makes it suitable for operation in muddy and rain conditions.




Technical data


Name Description
Flexible clamp FS-2
output level 100 mV / 1 A
ength 4000 mm | 157.5”
Flexible clamp FSX-3
output level 300 mV / 1 A
length 2000 mm | 78.7”
Measurement category acc. to IEC 61010-1 CAT IV 300 V
Measurement range up to 5 A
Operating frequency
for 50 Hz networks 125 Hz
for 60 Hz networks 150 Hz
Power supply 3x LR6 1.5 V battery or 3x NiMH LR6 1.2 V rechargeable battery
Other data
Operating temperature -10...+50°C | 14...122°F
Storage temperature -20...+80°C | -4...176°F
Humidity 20…90%
Ingress protection IP67






Weight and dimensions

Parameter Value
Net weight (kg) 0.3
Package weight (kg) 0.5
Package width (cm) 12.5
Package height (cm) 7.5
Package length (cm) 24.5
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