
Transmitter M400/2(X)H, M400G/2XH 55
© 03 / 2014 Mettler-Toledo AG, CH-8606 Greifensee, Switzerland Transmitter M400/2(X)H, M400G/2XH
Printed in Switzerland 30 031 683
If an ISM sensor has been connected resp. configured there is furthermore the option to adjust
the polarization voltage for the sensor. Different value can be entered for the measuring mode
(Umeaspol) and for the calibration mode (Ucalpol). For entered values 0 mV to –550 mV the
connected sensor will be set to a polarization voltage of –500mV. If the entered value is less
then –550mV, the connected sensor will set to a polarization voltage of –674mV.
h
NOTE: During a process calibration, the polarization voltage Umeaspol, defined for the measur-
ing mode, will be used.
h
NOTE: If a one point calibration is executed, the transmitter sends the polarization voltage, valid
for the calibration, to the sensor. If the polarization voltage for the measuring mode and calibra-
tion mode is different, the transmitter will wait 120 seconds before starting the calibration. In this
case the transmitter will also go after the calibration for 120 seconds to the HOLD Mode, before
returning to the measuring mode again.
Press [ENTER]
The display shows the Save Changes dialog. Selecting No will discard the entered values and
return to the measurement display screen, selecting Yes will save changes made.
8.2.4 Set averaging
Enter Configuration Mode as described in section 8.1 ”Enter Configuration mode” and select the
menu Measurement (see section 8.2 ”Configuration/Measurement”).
Selected the menu “Set Averaging” by using the or . key. Press [ENTER]
The averaging method (noise filter) for each measurement line can now be selected.
The options are Special (Default), None, Low, Medium and High:
None = no averaging or filtering
Low = equivalent to a 3 point moving average
Medium = equivalent to a 6 point moving average
High = equivalent to a 10 point moving average
Special = averaging depending on signal change (normally High averaging but Low averaging
for large changes in input signal)
Pressing the [ENTER] key again will bring up the Save Changes dialog. Selecting No will dis-
card the entered values and return to the measurement display screen, selecting Yes will save
changes made.
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