Futaba BPS-1 User Manual

1M23N25101

Backplate Sensor For
Governor

BPS-1

Instruction Manual

WARNING

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Always use the BPS-1 with a BPS-1

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compatible engine backplate.

Be careful of the connector polarity.

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■ Because of the case construction, reversing the polarity

may cause trouble or sparking from the wiring.

Mount the BPS-1 when the engine is

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sufficiently cool.

■ If you touch the engine immediately after use, you may

receive a burn.

Mount the senso r in accordance

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w i th t h e inst al lat ion m e t h od

described below.

■ If the BPS-1 drops out during flight, it cases erratic

operation or loss of control.

Grommet

＜ BPS-1 ＞

Sensor

To engine

backplate

Installation Method

Degrease the engine backplate with

1

alcohol, etc.

*Oil residue on the backplate will

cause faulty adhesion.

Thank you for purchasing a BPS-1 Backplate Sensor
for governor. Before using your new sensor, please
read this manual together with the instruction manuals
of the governor, transmitter, and engine used and use
the BPS-1 properly. After reading this manual, store it
in a safe place.

●The BPS-1 is designed for use with

Futaba GY701, CGY750, and GV-1
governors.

●The BPS-1 can be used only with a

BPS-1 compatible engine backplate.

Vibration-proof the PC board and

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mount the BPS-1 where it will not be

exposed to fuel and water.

■ Electronic parts are used at the PC board. Take

protective measures against vibration, shock, high
temperature, and so forth.

When mounting the BPS-1 to the

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fu selage, be sure there is some

slack in the wiring cable.

■ If the cable is too tight, vibration may cause the wire

to break or the connector to be dislodged and cause a
malfunction.

Always perform an operation check

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after assembling.

■ Do not fly until inspection is complete.

Do not use the BPS-1 with anything

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other than an R/C model helicopter.

Connector

PCBoard

To Governor

Overall length: approx. 655mm
Weight: 8g

Sensor mounting

section

Special engine

backplate

Inject silicone resin into the special

2

engine backplate up to about 1/3
(approximately 0.3cc) from the bottom
of the sensor mounting section of the
backplate.

Use non-solvent alcohol-release type silicone

*

adhesive.

Insert the sensor perpendicularly and

3

push in the grommet fully.

*Until adhesive is squeezed out from the

grommet is a sufcient.

Wipe off the squeezed out adhesive.

Special engine

backplate

Silicone adhesive

Insert sensor

perpendicularly

4

WARNING

*So that the adhesive does not enter the engine.

Adhesive in the engine will cause engine
trouble.

Fasten the grommet so that it will

5

not move and allow the adhesive to
harden.

Make the grommet

direction like this.

Operation Check

After assembling is complete, check operation as follows:

Connect the sensor to the governor

1

used and call the governor revolution
sensor test screen. (Revolution sensor
monitor for the GV-1.)

*Connect and operate the sensor in accordance

with the governor instruction manual.

Using a starter, rotate the engine

2

without starting it and check if the
sensitivity is 60% or greater.

*Rotate with only the starter without plug

heater attached.

*If the sensitivity is less than 60%, re-check the

installation.

FUTABA CORPORATION

1080 Yabutsuka, Chosei-mura, Chosei-gun, Chiba-ken, 299-4395, Japan

Phone: [phone], Facsimile: [phone]

©FUTABA CORPORATION 2011, 3 (1)

OK at more than 60% by

rotating the starter.

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Push in fully.

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BPS-1