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Quick Start Guide
7
May 2014
Input/verify Callendar Van-Dusen constants
If sensor matching is being used with this combination of a transmitter and
sensor, verify the constants input.
1. From the Home screen, select 2 Configure, 2 Manual Setup, 1 Sensor. Set the
control loop to manual and select OK.
2. Select Cal VanDusen at the Enter Sensor Type prompt.
3. Select the appropriate number of wires at the Enter Sensor Connection
prompt.
4. Enter the R
o
, Alpha, Delta, and Beta values from the stainless steel tag
attached to the special-order sensor when prompted.
5. Return the control loop to automatic control and select OK.
6. To disable the transmitter-sensor matching feature from the Home screen
select 2 Configure, 2 Manual Setup, 1 Sensor, 10 SensorMatching-CVD. Choose
the appropriate sensor type from the Enter Sensor Type prompt.
Step 3: Set the switches
644H (switch on bottom right of electronics module)
Without an LCD display
1. Set the loop to manual (if applicable) and disconnect the power.
2. Remove the electronics housing cover.
3. Set the switch to the desired position. Reattach housing cover.
4. Apply power and set the loop to automatic control.
With an LCD display (644H only)
1. Set the loop to manual (if applicable) and disconnect the power.
2. Remove the electronics housing cover.
3. Snap-off the LCD display straight off.
4. Set the switch to the desired position.
5. Reattach the LCD display and electronics housing cover (consider LCD display
orientation – rotate in 90 degree increments).
6. Apply power and set the loop to automatic control.
644R (switch on middle of front panel)
1. Open the front door of the 644R Rail Mount Transmitter
2. Set the switch to the desired position.