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Operation Summary 3.2
3.2.1 KEYPAD OPERATION
AUTO/MANUAL KEY
This key is used to enter the Manual mode (Standby) of operation from the Control mode and
visa versa.
AUTO TUNE KEY
This key is used to initiate the Auto Tuning of the Output 1 proportional output for heating
applications. If Auto Tune is being performed, pressing this key will abort the Auto Tune
function. The instrument will Auto Tune the process to control at the Setpoint 1 value.
SP1/SP2 KEY
This key is used to change the setpoint from one preselected value to the other
preselected value.
SCROLL KEY
This key is used to:
1. Display enabled modes of operation
2. Display a mode parameter value
3. Advance display from a parameter value to the next parameter code
4. Exit some calibration/test functions
5. Used with other keys:
A. With UP key to view output percentages of proportional output(s)
B. With DOWN key
1. On power up to alter model number
2. Enter calibration /test functions
3. To view output percentage of proportional Output 2
UP KEY
This key is used to:
1. Increase displayed parameter value
2. Increase setpoint (press and hold)
3. With a parameter code displayed
A. Press once to exit mode
B. Press twice to enter Control mode
4. Used with other keys
A. In Control mode with SCROLL key to view output percentage of proportional
output 1.
B. With DOWN Key
1. On power up resets instrument
2. Lamp test (press and release)
3. Enter Enable Mode (press and hold)
DOWN KEY
This key is used to:
1. Decrease displayed parameter value
2. Decrease setpoint (press and hold)
3. Enter modes
4. While in a mode, will sequence the parameter codes
5. Used with other keys
A. With SCROLL key
1. On power up to alter model number
2. Enter calibration/test functions
3. To view the output percentage of proportional output 2
B. With UP key
1. On power up resets instrument
2. Lamp test (press and release)
3. Enter enable mode (press and hold)
