
Transmitter Cond/Res 2-Channel M300 52
© 05/07 Mettler-Toledo AG, CH-8606 Greifensee, Switzerland Transmitter Cond/Res 2-Channel M300
Printed in Switzerland 52 121 318
When Calibrate Meter is selected, the display will show Channel A and Resistance 1, designat-
ing that the transmitter is ready to calibrate the first range resistor on channel A. This resistance
may be changed, selecting range 1 thru 5, or temperature. Each resistance range consists of a
two-point calibration. The temperature calibration consists of a three-point calibration (see table
for temperature resistance values)
Press [ENTER] to begin the calibration process.
The first text line will ask for the Point 1 resistance value (this will correspond to Resistance 1
value shown on the Calibration Module Accessory). The second text line will show the measured
resistance value. When the value stabilizes, press [ENTER] to perform calibration.
The transmitter screen will then prompt the user to enter the value for Point 2, and R1 will dis-
play the measured resistance value. When this value stabilizes, press [ENTER] to calibrate this
range.
Once point 1 and 2 are calibrated, return to the Calibrate Meter screen. Move the cursor to
change Channel A to Resistance 2, designating the second calibration range. Proceed with the
two-point calibration process as performed for the first range. This same process must be fol-
lowed to complete the re-sistance calibration of all 5 ranges.
Next, return to the Calibrate Meter screen and choose Temperature calibration for Channel A,
as shown.
Press [ENTER] to begin temperature calibration process
The first text line will ask for the Point 1 temperature resistance value (this will correspond to
Temperature 1 value shown on the Calibration Module Accessory). The second text line will
show the measured resistance value. When THE value stabilizes, press [ENTER] to perform
calibration.
The transmitter screen will then prompt the user to enter the value for Point 2, and T2 will display
the measured resistance value. When this value stabilizes, press [ENTER] to calibrate this
range.
Repeat these steps for Point 3.
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