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Teledyne API – Model T700 Dynamic Dilution Calibrator Troubleshooting and Service
261
9.4.11.4. Control Inputs
Table 9-13: T700 Control Input Pin Assignments and Corresponding Signal I/O Functions
CONNECTOR INPUT CORRESPONDING I/O SIGNAL
Top A
CONTROL_IN_1
Top B
CONTROL_IN_2
Top C
CONTROL_IN_3
Top D
CONTROL_IN_4
Top E
CONTROL_IN_5
Top F
CONTROL_IN_6
Bottom G
CONTROL_IN_7
Bottom H
CONTROL_IN_8
Bottom I
CONTROL_IN_9
Bottom J
CONTROL_IN_10
Bottom K
CONTROL_IN_11
Bottom L
CONTROL_IN_12
The control input bits can be tested by applying a trigger voltage to an input and
watching changes in the status of the associated function under the SIGNAL I/O
submenu:
EXAMPLE: to test the “A” control input:
1. Under the DIAG Signal I/O menu (See Section 9.1.3), scroll through the inputs
and outp
u
ts until you get to the output named 0) CONTROL_IN_1.
2. Connect a jumper from the “+” pin on the appropriate connector to the “U” on the
same connector.
3. Connect a second jumper from the “” pin on the connector to the “A” pin.
4. The status of 0) CONTROL_IN_1 should change to read “ON”.
9.4.11.5. Control Outputs
To test the Control Output electronics:
1. Connect a jumper between the “E“ pin and the “” pin on the status output
connector.
2. Connect a 1000 ohm resistor between the “+” pin and the pin for the status output
that is being tested.
3. Connect a voltmeter between the “” pin and the pin of the output being tested (see
Table 9-14).
4.
Und
er the DIAG Signal I/O menu (See Section 9.1.3), scroll through the inputs
and outpu
ts until you get to the output in question.
5. Alternately, turn on and off the output noting the voltage on the voltmeter.
It should vary between 0 volts for ON and 5 volts for OFF.
06873B DCN6388