METREL MD 9235, User Manual

Page: 13 / 42

MD 9235 Clamp Meter Series Operation
13
Note:
During kWHr Recording session, real-time W , VAR , VA as well as kWHr accumulated
readings can be selected by pressing the SELECT button momentarily. A flashing
“ ”
denotes that kWHr Recording is still under-
going. An always on “ ” denotes that
kWHr Recording is being paused.
When kWHr Recording is not activated, kWHr stored result instead of accumulated
readings is displayed when selected as in above. A
nnunciator “ ” turns on & flashes.
The meter separately stores one Single-Phase and one 3-Phase-Balanced-Load kWHr
result for later viewing. When they are being viewed, press “
3~Bal
● 1~ ” button
momentarily to toggle between them.
When the display readings exceed 9999kWHr/999hours, exponential readings are
displayed. “2.3E4” kWHr represents 2.3 x 10
4
kWHr, or 23000 kWHr for example,.
After the kWHr Recording session is stopped
(“ ”) properly, the new result will
supersede the previous one stored in the non-volatile memory. You can then switch off
the meter for transportation, storage, or even battery changing with memory remained.
To avoid mis-storage to memory, it is important to prop
erly stop (“ ”)
kWHr
Recording session before sliding the slide-switch function-selector to any other function
positions.
3-Phase 3-Wire (3 3W) Unbalanced-Load Power Function
Set the slide-switch function-
selector to the “
3~Un-Bal
” Power position. Press “
3W
●4W ”
button momentarily to select 3-Wire
measurements. Annunciator “
3W
” turns on.
Clamp the jaws around “Line 1” as reminded by annunciators “
L1
”, and connect
Black test probe ( COM
terminal) to “Line 3” and Red test probe (
+
terminal) to “Line 1”
as r
eminded 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 termina
l) to “Line 3” 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. 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 ( “ ”
).