Isspro R85115 User Manual download pdf

ISSPRO, INC. 2515 N.E. Riverside Way, Portland OR 97211

Telephone: (503) 288-4488  Toll Free: (800) 888-8065

FAX: (503) 249-2999

Form No. IS076 (1/91) Page 1 of 1

ISSPRO 3 3/8” Dia. Ignition Tachometer

Aircore Series

General Information:

Operating Voltage: 11-30 VDC: NOTE – Instrument comes equipped with a 12V lamp.

Replace with one of proper voltage when installing instrument on 24V systems.

24 Volt Lamp is P/N 656

Input Signal: Negative terminal of ignition coil

Transient Protection: +100 V, -400 V

Reverse Voltage Protected

Calibration: Remove the hole plug (if already installed) by pressing above the center enough to allow a small coin, screwdriver,

etc., to be inserted in the slot behind the upper edge. Twist coin or screwdriver to remove. Take care not to drop

jumper into the can. Move jumper to the appropriate position corresponding to 4, 6, or 8 cylinder engines. Install

lamp & socket. Replace hole plug.

Installation: Mount the tachometer in the dash panel and connect the wires as described below:

Make all your connections to the wires on the Black plug supplied and then plug it into the tachometer’s white connector.

RED – Connect to ignition switched power source.

BLACK – Connect to ground.

WHITE – Connect to negative ( “-” ) terminal of ignition coil.

GREEN – Connect to dash lamp power.

Installation Hints:

1.) When power is applied, the needle

should go to the zero position. If it does

not, there may be a bad connection in the

“hot” (red wire) or ground (black wire)

circuit. Check power to the meter by

measuring with a voltmeter at the plug

(Attach meter leads on the pins that

attach to the red and black wires). If

there is power at the plug, the problem is

in the gauge.

2.) Low voltage (below 10.5 volts) will

cause inaccurate reading. If inaccuracy

is suspected, measure voltage with

vehicle operating and meter connected.

This can be done by connecting a

voltmeter to power source (i.e. fuse

block, etc.) and/or to the pins of the red

and black wires at the point where they

enter the back of the connector plug.

Move Jumper to proper position

for engine cylinders.

(4 cylinder s

Slot

Lamp & Socket

(Remove CCW)

Number of cylinders

Rear view of tachometer

Aircore Series 1

Summary of Contents

Page 1 - Aircore Series

ISSPRO, INC. 2515 N.E. Riverside Way, Portland OR 97211 Telephone: (503) 288-4488  Toll Free: (800) 888-8065 FAX: (503) 249-2999 Form No. IS076 (1

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Isspro R85115 User Manual

Browse online or download User Manual for Hardware Isspro R85115. ISSPRO R85115 User Manual

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