Specifications

Transmitter M300 FLOW 58
© 09 / 08 Mettler-Toledo AG, CH-8606 Greifensee, Switzerland Transmitter M300 FLOW
Printed in Switzerland 52 121 319
11.1.9 Read Analog Outputs
This menu shows the mA value of the analog Outputs.
Pressing [ENTER] on four channel models will display Analog Outputs 3 and 4.
11.2 Calibrate
(PATH: Menu/Service/Calibrate)
This menu has options to calibrate the transmitter and the analog outputs and also allows
unlocking of calibration functionality.
11.2.1 Calibrate Meter
The M300 Flow Transmitter is factory calibrated within specifications. It is not normally
necessary to perform meter re-calibration unless extreme conditions cause an out of spec
operation shown by Calibration Verification. Periodic verification/re-calibration may be necessary
to meet Q.A. requirements.
It is recommended that both calibration and verification be performed using the M300 Flow
Calibrator Module Accessory (refer to accessory list, in section 15). Instructions on the use of
this accessory are provided with the calibrator module.
When Calibrate Meter is selected, the display will show the channel (user selectable on four
channel transmitters) and Frequency, designating that the transmitter is ready to calibrate the
input frequency circuit. This frequency calibration requires a 2-point calibration.
Press [ENTER] to begin the calibration process. The desired frequency for the first point of
calibration is entered. The 4
th
line of the display shows the measured input frequency.
During calibration, the outputs will default to be held at their current values until 20 seconds
after the calibration menu is exited. A flashing H appears in the upper left corner of the display
while outputs are held. Refer to Section 8.7 Hold Outputs to change the hold output status.