Figure 37: MCC CLAMP zero calibration
6.
Press and release the
TEST
button until a “0” reading is obtained on the display.
7.
Close the MCC CLAMP around the calibration lead, which connects the
C1
and
C2
terminals as shown in Figure 38.
[
X
and
C
terminals for DET3TC]
Figure 38: MCC CLAMP 100% calibration
8.
Press and release the
TEST
button until a “100” reading is obtained on the display.
9.
Switch the instrument
OFF
using the selector switch.
10. The instrument is now calibrated to the MCC CLAMP and the calibration stored in non-volatile memory.
OPERATION OF THE TWO-CLAMP CALIBRATION ADAPTOR
1.
Ensure the rotary selector switch is in the
OFF
position.
2.
Connect the instrument as shown.
3.
Close the MCC CLAMP around one loop of the two-clamp calibration adaptor.
4.
Close the MVC CLAMP around the other loop of the two-clamp calibration adaptor.
5.
Ensure a minimum separation of 100mm between the MCC CLAMP and MVC CLAMP.
6.
Set the rotary selector switch to the
position.
MCC
MCC
MCC
MCC
MCC
MVC
