Fireboy- Xintex 8901, 8402 User Manual

PREMIUM QUALITY FOR UNEXCELLED RELIABILITY

The tachometer measures one of the most important operating parameters of an
engine - RPM. Your engine represents a substantial investment. Protect it with

quality instrumentation.

Only top quality "mil-spec" workmanship and premium grade materials are used. This includes moisture
proof glass/epoxy circuit boards with double thickness copper and extremely high intensity readouts
manufactured by Hewlett Packard. The non-magnetic construction uses only brass, stainless steel, and

passivated aluminum hardware. The gasketed glass to metal seal is impervious to moisture.
Easyto install on gasoline or diesel engines. Just three wires connect. Self-contained unit easily replaces

existing standard-size tachometers. Choice of either polished stainless steel or black anodized aluminum

bezel.

31/8.

Sender Model 8901

For Diesel Engines

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Tachometer Model 8402

LED Readout

TACHOMETER SPECIFICATIONS

Tachometer range 0 to 9999 Revolutions Per Minute
Tachometer resolution One Revolution Per Minute

Tachometer accuracy Within plus or minus 1 revolution
Tachometer readout type Four fully active LED digits
Tachometer display intensity Automatic night dimming
Data update rate Approximately once per second
Ratio settings: switch selectable (other ratios by special order)

Gasoline engines 3,4,6,8,12,16 cycles (4 cycle)
Direct driven alternators 3,4,6,8, 12, 16 poles
Diesel 2, 3,4,6,8,12,16 pulses/rev.

Diesel sender output Eight pulses per sender revolution
Diesel sender drive ratios 0.25:1, 2.0:1, 0.75:1,1.0:1

Diesel sender fittings SAE Marine 7/8-18 mount, 0.187 tip
Nominal input voltage 13.6 volts DC
Input voltage range 6.8 to 16.0 volts DC
Power consumption (@13.6 VDC)

Bright Ambient 350 mA typical, 480 mA maximum

Dark Ambient 10 mAtypical
Operating temperature range -40 C to +85 C (-40 F to +185 F)
Storage temperature range -60 C to +85 C (-76 F to +185 F)
Operating humidity range 0 to 95% R.H., non-condensing
Package construction Passivated aluminum, non-magnetic
Interconnection terminals Brass studs (3), #8x32
Warranty, limited Twoyears

Specifications subject to change without notice.

Available for optional use

with Black Bezel Tachometer

Trim Ring

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1£ AETNA ENGINEERING

0-379 Lake Michigan Dr. NW, Grand Rapids, MI 49544 USA

Toll Free: 1-800-776-7962 Phone: [phone] Fax: [phone]

Email: [e-mail] Web:www.fireboy-xintex.com

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REV. 12/04

17008