MEATEST
M133C Electric Power/Energy Calibrator
Operation manual
58
8.
AC voltage modulation ranges calibration (P Harmonic, P Interharmonic modes,
model M133C only)
a)
Select Voltage MOD#1 from the calibration menu and confirm by pressing Select
softkey. Switch calibrator’s output terminals ON.
b)
Follow the instructions provided on the calibrator’s display and the MOD ACU
table to adjust the calibrator’s output in the calibration points.
c)
To adjust the calibrator’s output in the calibration points, press Select softkey and
use
,
,
,
cursor buttons, rotary knob or numeric keyboard to adjust the output
voltage. Confirm correctly set value by pressing Write softkey. If you want to skip
the calibration point whose calibration you have already entered, press Exit softkey.
d)
Switch output terminals OFF. Disconnect multimeter and calibrator.
e)
Repeat steps a) to d) also for Voltage MOD#2 and Voltage MOD#3.
9.
AC current modulation ranges calibration (P Harmonic, P Interharmonic modes,
model M133C only)
a)
Select Current MOD#1 from the calibration menu and confirm by pressing Select
softkey. Set the same function on external multimeter.
b)
Follow the instructions provided on the calibrator’s display and the MOD ACI table
to adjust the calibrator’s output in the calibration points.
c)
To adjust the calibrator’s output in the calibration points, press Select softkey and
use
,
,
,
cursor buttons, rotary knob or numeric keyboard to adjust the output
voltage. Confirm correctly set value by pressing Write softkey. If you want to skip
the calibration point whose calibration you have already entered, press Exit softkey.
d)
Resistance shunt should be used on 2, 5, 10 and 30 A ranges, if standard multimeter
does not cover this range.
e)
Repeat steps a) to d) also for Current MOD#2 and Current MOD#3.
10.
Multimeter calibration
Built-in multimeter calibration consists of the calibration of 10 V voltage range, 20 mA
current range and 10 kHz frequency range.
External calibrator of higher precision class should be used to calibrate the built-in
multimeter (Meatest M142). If accurate external calibrator is not available an 81/2 digit
multimeter is recommended for calibration.
a)
10 V DC voltage range calibration
Select Meter from the calibration menu. Press Select softkey to select the first
calibration point, 0 V.
Make short on calibrators input terminals METER INPUT V-COM.
Main value presents the calibration point. Leave value 0.000 and press Write
softkey.
Select calibration point 10 V.
Содержание M133C
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