Murphy VM-12 - Manual
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Wiring Instructions for
VM-12 and VM-24 Voltmeter
VM-94137N
Revised 09-96
Section 65
(00-02-0209)
B
®
Please read these instructions carefully
before installing.
1. Disconnect battery ground cable.
2. Connect an 18 AWG (1.0 mm
2
) wire, minimum, from
the ground terminal on the back of the voltmeter to
ground (see wiring diagram). For an above ground
system connect the wire from the “–” terminal on the
voltmeter to the negative (–) terminal on the battery.
3. Connect an 18 AWG (1.0 mm
2
) wire, minimum,
from the “IGN” terminal on the ignition switch to
the “+” terminal on back of the voltmeter.
4. Connect an 18 AWG (1.0 mm
2
) wire, minimum,
from the instrument panel’s lighting circuit to the
illuminating lamp on back of the voltmeter (if
applicable).
5. Reconnect battery ground cable.
■
Frank W. Murphy Manufacturer
P.O. Box 470248; Tulsa, Oklahoma 74147; USA
tel.
(918) 627-3550
fax
(918) 664-6146
■
Frank W. Murphy Southern Division
P.O. Box 1819; Rosenberg, Texas 77471; USA
tel.
(713) 342-0297
fax
(713) 341-6006
■
Frank W. Murphy, Ltd.
Church Rd.; Laverstock, Salisbury SP1 1QZ; U.K.
tel.
+44 1722 410055
fax
+44 1722 410088
tlx
477088
■
Frank W. Murphy Pte., Ltd.
26 Siglap Drive; Republic of Singapore 456153
tel.
+65 241-3166
fax
+65 241-8382
■
Murphek Pty., Ltd.
1620 Hume Highway; Campbellfield, Vic 3061; Australia
tel.
+61 3 9358-5555
fax
+61 3 9358-5556
■
Murphy de México, S.A. de C.V.
Blvd. Antonio Rocha Cordero 300, Fracción del Aguaje
San Luis Potosí, S.L.P.; México 78384
tel.
+52-48-206264
fax
+52-48-206336
■
Murphy Switch of California
P.O. Box 900788; Palmdale, California 93590; USA
tel.
(805) 272-4700
fax
(805) 947-7570
■
Frank W. Murphy France
tel.
+33 1 30 762626
fax
+33 1 30 763989
No
Connection
†
Terminal location may differ from shown.
Alternator
Battery
Cable
Battery
Starter
Motor
Voltmeter
(rear view
†
)
To Electrical
System
Lamp
ON–OFF
Switch
Light
Switch
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