Manual Number 9018205 Revision F, April 1, 2021
23
Temperature Mode
When in Voltage mode, pressing the Mode button once changes the unit to Temperature
mode and the OAT (Outside Air Temperature) annunciation will be backlit (refer to Figure
4.17). Temperature mode is only available in CH93 Type 2 units and requires the use of one
or two temperature probes (sold separately; refer to Section 3.3 and 4.6). When a
temperature probe is detected, the temperature is displayed to the nearest degree (°) in
either Celsius (C) or Fahrenheit (F). If there are no temperature probes installed or detected,
Temperature mode will be unavailable and the unit will transition from Voltage mode to Local
mode when pressing the Mode button.
The CH93 Type 2 unit is designed to support one or two temperature inputs. One input is
designed to measure and indicate Outside Air Temperature (OAT) and the other to measure
and indicate inside (cockpit or cabin) air temperature. Either or both are allowable. If a
temperature input is configured as OAT, the OAT annunciation will be backlit. If configured as
cockpit/cabin temperature, no mode annunciation will be shown and the first digit of the
display will indicate the letter “c” (Refer to Figure 4.18) When both are installed, pressing the
–
or
+
button will switch between OAT and cockpit/cabin temperature. The last viewed
temperature will remain as the default view when cycling through the modes, until changed
again.
To change the units of the temperature display (C or F), press and hold the
MODE
button.
Refer to Figure 4.19 for detailed instructions
Figure 4.17
Figure 4.18
Temperature Mode
Temperature Mode
Outside Air Temperature (-5 unit shown)
Cockpit/Cabin Temperature (-5 unit shown)
