Athena Technologies L, P instruction manual OTC25 N On/Off Temperature Controller Normal Operation

Operation

		°
ACTUAL	SETPOINT	HEAT

Three-Digit

LED Display

Displays measured temperature, setpoint, or parameter labels and settings.

Figure 4. Front Panel Controls and Indicators

OTC25 N

Operation

The Calibration High and Calibration Low selections are accessi- ble only when the calibration jumper is installed as instructed on page 10 (Figure 6).

Parameter Key

Used to access available parameters to set or change values.

Raise Key

Used to scroll up through available parameter settings or to increase values. (Hold for fast-step progression)

Lower Key

Used to scroll down through available parameter settings or to decrease values. (Hold for fast-step progression)

Discrete LED Indicators
	OTC25 N	OTC25 L	OTC25 P
	Actual: amber	Actual: amber	Actual: amber
	Setpoint: amber	Setpoint: amber	Setpoint: amber
	Heat: orange	Limit: orange	Output 1: orange
			Output 2: orange

OTC25 N On/Off Temperature Controller

Normal Operation

The factory default display setting of the OTC25 N is for Actual

Temperature . The default display may be changed to

setpoint temperature by selecting Setpoint at the Default

Display parameter selection. When the Default Display is changed to Setpoint, the setpoint temperature may be adjusted

by using the Raise or Lower keys. The setpoint is adjustable from 32 to 905° F (0 to 485° C).

When the Default Display setting is “Actual” , adjustment of the Setpoint may only be accomplished by pressing the

Parameter Key momentarily to switch the display to Setpoint,

and then using the Raise or Lower Keys

to change the Setpoint Value. The display will automatically revert back to “Actual” five seconds after the last keypress.

Parameter Configuration

Your OTC25 N controller’s parameter selections are explained on the next page, with default settings shown in Figure 5a.

4