Electronics International OPT-1 - Manual (Page 8)

Route the Backlight Wires: Route the Backlight Wires: Route the Backlight Wires: Route the Backlight Wires: Route the Backlight Wires:
Connect the backlight wires as follows:
1. It is recommended to permanently power up the digital display backlight.
a) For a 12-volt system connect the white/brown wire to the instrument Red Power Lead.
Connect the white/red wire to ground (see Wiring Diagram).
b) For a 24-volt system leave the white/brown open and connect the white/red wire to the
instrument Red Power Lead (see Wiring Diagram).
2. Connect the white/orange wire to the panel light rheostat. This wire will dim the analog LED’s
for night operation when the panel lights are turned on. If this line is left open, the analog LED's
will remain at full intensity at all times. Also, if the voltage on this line drops below 11.5 volts,
the analog LED's will be displayed at full intensity. Tie wrap all wires so they do not ob-
Tie wrap all wires so they do not ob- Tie wrap all wires so they do not ob- Tie wrap all wires so they do not ob- Tie wrap all wires so they do not ob-
struct the freedom of travel of any controls. struct the freedom of travel of any controls. struct the freedom of travel of any controls. struct the freedom of travel of any controls. struct the freedom of travel of any controls. Note: This line may be connected to the CP-1
Intensity Control Pot (see price sheet.
Route the (Optional) External W Route the (Optional) External W Route the (Optional) External W Route the (Optional) External W Route the (Optional) External Warning Control Line: arning Control Line: arning Control Line: arning Control Line: arning Control Line:
The white/yellow wire can be connected to an external light (AL-1), buzzer (ATG-1), voice annunciator
(AV-17), a relay, etc. This wire grounds when the red warning light is on. The current in this line must be
limited to 2/10 of an amp maximum. Exceeding this limit will damage the unit. If this feature is not used,
leave this line open. Tie wrap this wire so it does not obstruct the freedom of travel of any
Tie wrap this wire so it does not obstruct the freedom of travel of any Tie wrap this wire so it does not obstruct the freedom of travel of any Tie wrap this wire so it does not obstruct the freedom of travel of any Tie wrap this wire so it does not obstruct the freedom of travel of any
c o n t r o l s . c o n t r o l s . c o n t r o l s . c o n t r o l s . c o n t r o l s .
Install the Oil Pressure T Install the Oil Pressure T Install the Oil Pressure T Install the Oil Pressure T Install the Oil Pressure Transducer: ransducer: ransducer: ransducer: ransducer:
Find a convenient location on the fire wall and mount the pressure transducer with the clamp provided.
The oil pressure line does not have to be routed into the cabin area although you will need access on the
cabin side of the fire wall to tighten the pressure transducer clamp nut. Do not mount the pressure
Do not mount the pressure Do not mount the pressure Do not mount the pressure Do not mount the pressure
6
Flexible Flexible Flexible Flexible Flexible Aircraft Oil Pressure Line.
Rev: C 10/8/97 *
Mounting Screw.
Clamp.
PT-100GA Pressure Transducer.
Your Adapter (1/8" Female NPT).