Honeywell XNX, Technical Manual

Page: 73 / 200

XNX Universal Transmitter
Section 2 - Installation and Operation 71
Searchline (see the table in the next column)�
Figure 102. mA Levels Menu
Using the switches, move to the mA output to be changed
and use
✓
to select it�
✓
Figure 103. Set mA Levels for Warning
Use the switches to decrement or increment the value until
the desired value appears� Use
✓
to select the value and move
to the next setting� Repeat for each setting to be changed�
The default values and available output ranges for Inhibit,
Warning, Overrange, Beam Blocked, and Low Signal are shown
in the following table� See
Section 5 Warnings/Faults for more
information�
Signal
Output (mA)
Default Min Max
I Inhibit 2.0 1.0 3.5
W
Warning 3.0 1.0 3.5
O Overrange 21.0 20 22
B Beam Blocked 1.0 1.0 4.0
L
Low Signal 1.0 1.0 4.0
Figure 104. Set mA Levels for Inhibit
After all changes have been made, use the switches to
move to the ‘
ü
’ and use
✓
on the front panel to accept and save
the settings� If ‘
ü
’ is not selected, none of the changes will be
saved�
Figure 105. mA Settings Saved
Calibration Interval
Calibration Interval allows a desired interval for sensor
calibration to be set for sensors attached to the transmitter� The
transmitter will generate a warning when the interval is reached�
Figure 106. Calibration Interval Menu
Calibration Interval will not appear when an IR personality board
is attached and the mA sensor type is set as ‘Other mA Sensor’�
The default calibration values for the “Calibration Required”
diagnostic vary based on sensor type� This value can be repro-
grammed in accordance with site requirements to ensure the
highest level of safety� Correct operation of each sensor should
be confirmed using calibration with a certified gas of known con-
centration before commissioning�
Although the calibration Interval can be set to any value be-
tween 0 and 360 days, Honeywell Analytics recommends that the
interval for electrochemical and catalytic sensors be set to 180