METREL MD 9235, User Manual

Page: 14 / 42

MD 9235 Clamp Meter Series Operation
14
3-Phase 4-Wire (3
4W) Unbalanced-Load Power function
Set the slide-switch function-
selector to the “
3~Un-Bal
” Power position. Press “
3W
●4W ”
button momentarily to select 4-Wire
measurements. Annunciator “
4W
” turns on.
Clamp the jaws around “Line 1” as reminded by annunciators “
L1
”, and connect
Black test probe ( COM
terminal) to “Line n (neutral)” and Red test probe (
+ terminal) to
“Line 1” as reminded by annunciators “ ” on mini-display.
When the reading is stable, press “ ” button momentarily to enter the first measuring
value.
Then clamp the jaws around “Line 2” as reminded by annunciators “
L2
”, and connect
Black test probe ( COM
terminal) to “Line n (neutral)” and Red test probe (
+ terminal) to
“Line 2” as reminded by annunciators “ ” on mini-display.
When the reading is stable, press “ ” button momentarily to enter the second
measuring value.
Then clamp the jaws around “Line 3” as reminded by annunciators “
L3
”, and connect
Black test probe ( COM
terminal) to “Line n (neutral)” and Red test probe (
+ terminal) to
“Line 3” as reminded by annunciators “ ” on mini-display.
When the reading is stable, press “ ” button momentarily to enter the third measuring
value. The meter will then calculate, store and display the total 3-Phase Power result
automatically. Annunciators “
L1 L2 L3
” turn on.
Press “ ” button momentarily again for new measurements.
Press “
SELECT
” button momentarily to view ( “ ”
) the last stored result. Annunciator
“ ” turns on & flashes. Press “
SELECT
” button momentarily again to continue ( “ ”
).