15
3-6 DC Current Measurement
Set the rotary switch at
“
A
“
position at first.
Low current :
Press
DCA ZERO
switch before measuring.
High current :
1. Enclose the conductor lead and close the clamp.
2. Remove the clamp and press the
DCA ZERO
switch . (remnant magnetization compensation)
3. Enclose the conductor lead and close the clamp to go on with measurements (same current direction).
For DC measurement, the reading is positive value when the current flows from the upper side to the lower side of
the instrument as Fig. 2
4. Position clamp around wire or conductor and release clamp trigger, make sure that the clamp is entirely closed.
The clamp must be positioned around only one conductor of a circuit. If the clamp is placed around two or more
current carrying conductors, the meter reading will be FALSE.
Summary of Contents for 39MR
Page 4: ...4 Figure 1 ...
Page 18: ...18 Figure 2 Battery Replacement Or Installation ...