Detcon 10/12 Control Card Test Fixture - Manual (Page 5)

Model 10/12 Control Card Test Fixture
Page 5 of 10
Require tools:
Digital Volt-Ohm Meter (DVM)
Jewelers screwdriver
NOTE: These instructions cover testing of the main features of the Model 10 and Model
12 control cards. See the applicable instruction manual for a complete list of program
features and detailed operating procedures.
4.1 Model 10A and 10B Control Cards
NOTE: These instructions are based on the assumption that the Model 10 control card has
already been calibrated and basic alarm options have been configured.
1 - Turn the power switch on. Note that the digital mA Output LED meter illuminates
with a reading of 00.0.
2 - Plug the Model 10 control card into J1.
3 - Note that the Sensor Power LED (D4) is illuminated. This indicates power from the
control card to the sensor.
4 - Verify mA input and output using the mA input range selector switch (SW1).
SW1 Position Mod 10 mA Output Display (±0.1)
0mA SF (sensor fault) 0.00
2mA SF (sensor fault) 02.0
4mA 0 04.0
12mA 50 (±1) 12.0
Variable R4 & 24 99 Flashing 20.0
Note: The Variable mA position is normally set for 20.0 mA input. These potentiometers
can be adjusted to cause the mA input to cover the full range from 0 to 21+ mA. This is
useful for checking alarm set points and over-range conditions. The potentiometers are
turn. Center the fine potentiometer and adjust the coarse potentiometer to where you want
the mA input signal to be. Use the fine potentiometer for fine adjustments.
5 - Check alarm relay outputs.
NOTE: Model 10 control cards are 2 alarm devices. Disregard the alarm 3 (D8) LED on
the test fixture for this test.
FLT, ALM1, and ALM2 LEDs (D5, D6, & D7) will be dimly illuminated when not in
alarm. This dim illumination indicates that the normally closed contacts are operating
properly.