Ammeters and kiloammeters
with removable scales M42272, M42276
Purpose

The meters are designed to measure current or voltage in d.c. circuits in various equipment (transport, energetics, electrotechnical and engineering industries, etc). They are used in case when it is necessary to remove the scale just at the consumer.

Drawings

Operational parameters
Type
instrument
Range of
measurement
Accuracy
class
Overall dimensions,
mass
Operating
condition
Switch on
method
M42272 from 100 to 1000mkA 1,5 96x96x65mm
0,4kg
Ambient air temperature:
 from -30oC to +55oC,
relative air humidity: 90 % at +30oC.
The meters are vibro-, and shock resistance. The insulation of meter withstands 2kV test voltage.The mean-time-to first-failure is 39000h. The mean service life is not less than 8 years
Direct
from 1 to 600mA
from 1 to 15A
from 20 to 15000A With the external calibrated shunt 75mV and calibrated wires.
M42276 from 60 to 600mV 72x72x65mm
0,3kg
Direct
from 1 to 600V
from 1 to 15kV With separated  series resistor  nominal current 5 mA