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Configuration, Startup and Operation 57
6
888Xi Advanced Electronics Instruction Manual Section 3: Configuration, Startup and Operation
PN 51-6888Xi December 2012
8. From the RELAY 2 menu, use the stylus on the screen to select the mode then either the ON
o
r OFF buttons. Relay modes are as follows:
Unit Alarm
Low O
2
Cal Recommended
In Calibration
Heater Relay
Use the stylus on the screen to select ENTER, then SEND to update the 6888Xi.
3.7.6 Analog Output Configuration
The analog output signal from the 6888Xi can be configured for the 4-20 mA range and fault
condition.
A 6888Xi shipped from the factory has the analog outputs set to a 4 to 20 mA range with a 3.5
mA alarm level. This same process must be performed any time an I/O Board is replaced.
Configuring the Analog Output Using the 6888Xi Keypad/Display
1. Press the MENU button repeatedly until the IOB1 Probe 1 menu displays.
2. From the main menu, select DETAILED SETUP then press ENTER.
3. From the DETAILED SETUP menu, select ANALOG OUTPUT then press ENTER.
4. From the ANALOG OUTPUT menu, select from the following parameters then press ENTER:
O2 LRV – O
2
value at lower analog output value (0 mA or 4 mA)
O
2
URV – O
2
value at upper analog output value (20 mA)
AO Range – Range of analog output (0-20 mA or 4-20 mA)
Alarm Level – O
2
alarm level (3.5 mA or 21.1 mA)
5. Press the RIGHT arrow key to edit the value. Use the RIGHT and LEFT arrow keys to select
the digit to edit, then the UP and DOWN arrow keys to change the value of the digit. Press
ENTER to save the new value. Press the LEFT arrow key to return to the ANALOG OUTPUT
menu.
6. Press the EXIT key to return to the main menu.
7. Repeat steps 1 through 6 for PROBE 2 if configured for dual channel.
Configuring the Analog Output Using Field Communicator in Manual Configure Mode
1. Use the 375/475 Field Communicator to access the main HART menu.
2. From the main menu, select CONFIGURE.
3. From the CONFIGURE menu, select MANUAL SETUP.
4. From the MANUAL SETUP menu, select ANALOG OUTPUT.
5. From the ANALOG OUTPUT menu, select from the following parameters then press ENTER:
O
2
LRV – O
2
value at lower analog output value (0 mA or 4 mA)
O
2
URV – O
2
value at upper analog output value (20 mA)
Output Range – Range of analog output (0-20 mA or 4-20 mA)
Alarm Level – O
2
alarm level (3.5 mA or 21.1 mA)
6. Use the stylus on the screen keypad to enter the value then press ENTER when finished.
7. Use the stylus on the screen to select SEND to update the 6888Xi.