Calibrate Ma Input Channel Loops; Calibrate Wireless Input Channel - Honeywell Touchpoint Plus Wireless Technical Handbook

MAN0984_Iss 2_09/19
3020M5001_2

7.11 Calibrate mA Input Channel Loops

Where the sensor / transmitter has the facility, the mA loop should always be calibrated at the Touchpoint Plus
controller by forcing signal levels at the sensor / transmitter. Any gas calibration required must be carried out at
The Touchpoint Plus controller calibration should not be used to adjust for deficiencies in the sensor / transmitter
Ensure that any relay activation (drenchers, repeater alarms, etc.) is inhibited before starting this test.
Note: Service or higher level access is required.
If the sensor is an Oxygen sensor that is not being used with a transmitter that has a force mA function, the
span gas should normally be air at 20.9% v/v Oxygen.
The Touchpoint Plus Wireless controller calibration should not be used to correct deficiencies in the sensor
calibration; instead carry out a gas calibration at the sensor according to the manufacturer's instructions.
To calibrate the mA loop of an input channel, follow the procedure below in combination with the relevant
instructions in the sensor manual.
1) Login as Service.
2) Select the Menu > Maintenance > Gas Calibration. Select the channel to be calibrated.
3) Select 'Start' for Zero Calibration.
4) Apply zero gas to the sensor / field device so that it can generate 4mA signal.
5) View the reading until it is stable, and then touch 'Apply'.
6) Select 'Next' to move to the Span Calibration screen.
7) Enter the target span gas concentration and touch 'Apply'.
8) Select 'Start' for Span Calibration.
9) View the reading until it is stable, and then touch 'Apply'.

7.12 Calibrate Wireless Input Channel

1. TPPLW indicates disconnect state of the wireless channel when local wireless node is being
calibrated.
2. TPPLW indicates disconnect state of the wireless channel when portable products are in menu
mode.
Commissioning
the field device according to the manufacturer's instructions.
gas calibration. Failure to observe this can result in significant accuracy errors.
Only trained technicians are authorized to carry out calibration
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Touchpoint Plus Wireless
Technical Handbook