Perma Pure Modular Board - Manual (Page 12)

Thermocouple Inputs
Thermocouple1 -20°C is the fifth step; the top and third lights are on solid and the
second and bottom lights are blinking.
LED indicators in order top to bottom
CAL : CHANNEL : IN / OUT : HIGH / LOW
SOLID
BLINK
SOLID
BLINK
The volt meter will display the maximum voltage output, approximately 3.6 VDC.
The volt meter can be disconnected.
Disconnect the thermocouple(s) from the control board. The thermocouples
should be labeled on any unit with multiple sensors to insure correct reassembly
after calibration.
Connect the thermocouple calibrator to ‘TC1’ connector CN9. Set calibrator to
-20.0°C; K thermocouple. Allow 30 seconds, 15 LED blinks, for calibrator output
and control board input to stabilize.
Press the ‘UP / TAKE’ button to record the input value. The board will
automatically move to the next step.
Thermocouple1 20°C is the sixth step; the top, third and bottom lights are on solid
and the second light is blinking.
LED indicators in order top to bottom
CAL : CHANNEL : IN / OUT : HIGH / LOW
SOLID
BLINK
SOLID
SOLID
Set calibrator to 20.0°C; K thermocouple. Allow 30 seconds, 15 LED blinks, for
calibrator output and control board input to stabilize.
Press the ‘UP / TAKE’ button to record the input value. The board will
automatically move to the next step.
Thermocouple2 -20°C is the seventh step; the top, second and third lights are on
solid and the bottom light is blinking.
LED indicators in order top to bottom
CAL : CHANNEL : IN / OUT : HIGH / LOW
SOLID
SOLID