B) Operation With A Power Adapter; C) Connecting The Measuring Sensor; D) Positioning The Measuring Sensor; E) Setting Up The Measuring Device - VOLTCRAFT GM-70 Operating Instructions Manual

b) Operation with a power adapter

• Optionally, the measuring device can be operated with a suitable power adapter. The 9 V power adaptor connection
socket connection socket DC 9 V (10) is located under a flap on the right-hand side of the housing.
• Open the flap with a pointed object.
Connect the low voltage plug of the appropriate plug-in power adapter to the mains connection socket DC 9 V (10)
on the measuring device.
- The power adapter has priority switching. The battery can remain in the measuring device when mains operation
is active.
• The appropriate low voltage plug has the following specifications:
- External diameter 5.5 mm, inner hole 2.5 mm
- Polarity: outside minus (-), inside plus (+)
The required power adapter has the following specifications for the output:
- Voltage: 9 V/DC
- Current: 0.5 to max. 1 A

c) Connecting the measuring sensor

• Connect the sensor connection plug (18) to the socket (4) on the measuring device.
• The plug is protected against incorrect polarity and only fits into the socket in the right direction. Ensure that the plug
is firmly inserted otherwise inaccurate measurements will be made.

d) Positioning the measuring sensor

Remove the protective cap (16) from the measuring sensor and position the hall effect sensor on the area to be
measured.
Hall sensor

e) Setting up the measuring device

For better reading, the measuring device can be set up using the device stand at the rear (13). The device can be
mounted on a tripod using the tripod socket (14)
Temperature compensation
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