Engineering Settings [Eng]; Resetting The Sensor [Rset]; Trimming The 4-20 Ma Outputs [420Z, 420F]; Test Functions [T.rel, T.dig, T.led] - Pentair GOYEN MECAIR PEM Manual

3. Press RIGHT to scroll through and adjust the different RS-485 settings as shown in the below table.
4. Press RIGHT again to return to the R485 menu heading.
MENU
ADDR
BAUD
STOP
PRTY
PROT

8.6 ENGINEERING SETTINGS [ENG]

MENU DESCRIPTION
RSET
Resets the sensor to factory (default) values.
420Z Trims the 4–20 mA Zero Offset (4 mA).
420F Trims the 4–20 mA Full Scale (20 mA).
T.REL Tests the relays.
T.DIG Tests the digital input.
T.LED Tests the LEDs.

8.6.1 Resetting the Sensor [RSET]

CAUTION! – LOSS OF DATA
Performing a Reset can stop the sensor from working!
A reset will put all instrument settings back to their default values. The procedure given in this section
must, therefore, be carried out only by suitably trained and qualified personnel.
This function may be used to return the sensor to its factory pre-sets, if necessary.
1. Scroll DOWN to the ENG (Engineering) menu.
2. Press RIGHT to access the RSET submenu.
3. Press RIGHT again to display 0000 and press UP to set the value to 0001.
4. When ready, press RIGHT to initiate the reset.
8.6.2 Trimming the 4–20 mA Outputs [420Z, 420F]
1. Enter the password, if required (see section 7.2 on page 18).
2. Scroll DOWN to the ENG (Engineering) menu heading.
3. Press RIGHT to access the 420Z and 420F settings.
When you enter the 4–20 mA Zero [420Z] setting the sensor will nominally output 4 mA. Use the UP/DOWN
buttons to adjust the 4–20 mA Zero calibration value (default: 223) to trim the 4 mA value.
Similarly, when you enter the 4–20 mA Full Scale [420F] setting the sensor will nominally output 20 mA. Use
the UP/DOWN keys to adjust the 4–20 mA Full Scale calibration value (default: 2230) to trim the 20 mA value
(default: 4835).

8.6.3 Test Functions [T.REL, T.DIG, T.LED]

The table below shows the operation of the test functions. Use the UP/DOWN buttons to change the values.
MENU
Relays [T.REL]
Digital Input [T.DIG]
LEDs [T.LED]
INSTALLATION AND OPERATION MANUAL – OWNER'S RECORD PEM MANUAL – PARTICULATE EMISSION MONITOR
MEANING DEFAULT VALUE
Modbus address
Baud rate 19200
Stop bits
Parity
Modbus protocol
SETTING
Set to 0
Set to 1
Open
Apply 24 V to close
Set to 0
Set to 3
RANGE OF VALUES
1 1–255
200, 600, 1200, 2400, 4800, 9600, 19.2k
2 0, 1, 2
Odd Odd, Even, None
ASCII ASCII, RTU
RESULT (OF TEST FUNCTION)
Relay(s) closed
Relay1 open
Display 0000
Display 0001
All LEDs = GREEN
Self-Check LED = RED
23