Menu Descriptions
ROC
Define which output relay will be configured.
CO
2
default
VOC
Max CO
2
/ VOC
RON
Relay set point
Sets the CO
2
or VOC concentration which the optional relay is energized.
Low limit:
0 PPM
Factory setting:
1000 PPM
High limit:
2000 PPM (CO
2
or VOC), 5000 PPM (only CO
2
)
ROF
Relay off set point
Sets the CO
2
or VOC concentration which the optional relay is de-energized.
Setting value lower than RON provides direct action for detecting
high concentrations of CO
2
. Setting value higher than RON provides indirect
action for detecting low concentrations of CO
2
or on the LCD display will be
lit to indicate when the relay is energized.
Low limit:
0 PPM
Factory setting:
950 PPM
High limit:
2000 PPM (CO
2
or VOC), 5000 PPM (only CO
2
)
DSP
Display configuration
Determines the LCD display configuration during normal operation. The
LCD display can indicate the CO
2
concentration or VOC concentration.
C
CO
2
concentration only
V
VOC only
UNI
Units selection
Temperature and barometric pressure values can be displayed in US
engineering units or SI engineering units. The factory default is to display
US engineering units.
COL
CO
2
low output range
Sets the CO
2
concentration for the lowest output (0 V, 1 V, 2 V, 0 mA, 2 mA,
4 mA).
Low limit:
0 PPM
Factory setting:
0 PPM
High limit:
2000 PPM (CO
2
or VOC), 5000 PPM (only CO
2
)
COH
CO
2
high output range
Sets the CO
2
concentration for the highest output (10 mA or 5 V, 20 mA or
10 V). When COH is set above COL, the transmitter is direct acting and the
output will increase with an increase in CO
2
level. When COH is below
COL, the transmitter is reverse acting and the output will increase with a
decrease in CO
2
level.
Low limit:
0 PPM
Factory setting:
2000 PPM (CO
2
or VOC), 5000 PPM (only CO
2
)
High limit:
2000 PPM (CO
2
or VOC), 5000 PPM (only CO
2
)
VOL
VOC low output range
Sets the VOC for the lowest output (0 V, 1 V, 2 V, 0 mA, 2 mA, 4 mA). To
configure output for 450 PPM equal 0V, set VOL to 450 PPM. Even if power
is lost the VOL setpoint will remain in memory.
Low limit:
0 PPM
Factory setting:
0 PPM
High limit:
2000 PPM CO2 equivalent
VOH
VOC high output range
Sets the VOC level for the highest output (10 mA or 5 V, 20 mA or 10 V).
When VOH is set above VOL, the transmitter is direct acting and the output
will increase with an increase in VOC level. When VOH is below VOL, the
transmitter is reverse acting and the output will increase with a decrease in
VOC level.
Low limit:
450 PPM
Factory setting:
2000 PPM CO
2
equivalent
High limit:
2000 PPM CO
2
equivalent
BAR
Barometric pressure
Sets the typical barometric pressure for the location where the transmitter
is mounted. The factory setting is for standard pressure at sea level.
Adjusting the barometric pressure gives a more accurate measurement,
especially at higher elevations. Refer to the elevation charts in Figure 9 for
typical barometric pressures at a given elevation.
Low limit:
20.0 in Hg / 600 hPa
Factory setting:
29.9 in Hg / 1013 hPa
High limit:
32.0 in Hg / 1100 hPa
CAL
Calibration
Calibrates in carbon dioxide sensor to a known gas valve. Read calibration
instructions before using this feature. Hold for 5 seconds.
EDITING MENU PARAMETERS
Before any adjustment can be made to the transmitter, the Menu Lockout Dip Switch
must be set to the ˝On˝ position (See Figure 3)
ACCESSING MENU PAPRAMETERS
Step 1:
To enter the menu structure, press Up button and Down button
simultaneously for 5 seconds (display will show RON parameter).
Step 2:
Press Up button or Down button to cycle between menu items.
Step 3:
Press Enter to edit the value for the displayed menu item (SET will
appear on display).
Step 4:
Press Up button or Down button to adjust the value of the menu
item.
Step 5:
Press Enter button to save the changes (SET will disappear).
Step 6:
Repeat Steps 2 through 5 for each of the parameters.
Step 7:
To exit the menu at any time, press and hold Up button and Down
button simultaneously for 5 seconds or wait 10 seconds without
pushing any buttons.
Figure 5: Side View of Wall Transmitter
Enter
Up
Remote Display Port
Down
