Manual Number 9018205 Revision F, April 1, 2021
29
Transducer Probes
To install any of the Transducer-style probes for OAT or interior temperature, connect pins 6
and 7 (polarity required) to the mating connector of the CH93 per the instructions below.
4.6.2.1
OAT Transducer Probes
The CH93 is compatible with the following OAT Transducer Probes:
(not available through MCIA)
Davtron p/n C307PS
Davtron p/n 655
To install these probes, connect the power line to pin 7 and the return line to pin 6 of the
CH93 mating 9-pin d-sub connector.
4.6.2.2
Interior Transducer Probe
The MCIA p/n B-11-2 is a 120-inch long (10 foot) Cockpit/Cabin Interior Temperature
Current Sense Transducer Probe that mounts by either a #8 (or smaller) screw or cable
tie to any interior location. To connect the B-11-2 probe to the CH93 unit, remove excess
cable length from the probe, strip ends, and connect to the CH93 mating 9-pin d-sub
connector as follows: Black wire to pin 6 (Return) and Red wire to pin 7 (Power).
0.62
120±2.0
0.73
0.58
0.33
0.16
Ø0.17
B-11-2 Probe
MD93
Wire
Description
Pin
Description
Black
Return
6
Temp
Sensor
Return
Red
Power
7
Temp
Sensor
Power
Figure 4.16
B-11-2 Temperature Probe