MAN# 650036
Series I
HLY-1041 WATER TEMPERATURE rev. C
HLY-1071 OIL TEMPERATURE rev. C
Wiring:
GND
-
Connect to a main ground location.
PWR
-
Connect to fused switched 12 VDC power. (An accessory terminal will work for this.)
DIM
-
Night Dimming: (normally not used) hook to an auxiliary toggle switch.
SND
-
Connect to the temperature sender.
Mounting:
The Series I gauge requires a rectangular hole 2-9/16“ x 1-11/16“. . It should be inserted into the opening
from the front and the U-clamp will be installed from the back. Tighten the two nuts on the U-clamp so that the
gauge is secure. Gauge depth to the back of the case is 1”. Gauge depth including the mounting studs is 1-7/8”.
Factory settings:
Sender type:
300 °F.
Hi warning point:
202 °F.
•
The water temperature gauge will operate and read correctly between the temperature range of 0 - 300
°
F
(0 - 150
°
C).
•
This gauge has a user adjustable high warning level, which can be set to indicate when the engine is beginning
to overheat.
Sender choices:
Standard thread
metric thread
1/8” NPT
SEN-04-1
M10X1
SEN-04-5
3/8” NPT
SEN-04-2
M12X1.5
SEN-04-6
½” NPT
SEN-04-4
M14X1.5
SEN-04-7
M16X1.5
SEN-04-8
These senders have a tapered self-sealing thread. The engine and sender threads should be cleaned before
installation and no tape or sealant should be used on the threads. The sender should be mounted in the engine
block or in the intake manifold. Installing in the cylinder head may cause high readings due to the exhaust manifold
heat. Make sure that the sender tip can get into the coolant flow.
The sender must be a Dakota Digital 300F
temp unit.
Sending units from other manufacturers will cause incorrect readings. If a sender is not connected
properly, the display will show “EEE”. If the SND terminal is shorted to ground, the display will show “---”.
