Dakota Digital HLY-3191 Manual

(weather and vibration resistant for exposed environments)
Wiring:
GND -
PWR -
DIM -
SND -
Mounting:
The Series II gauge requires a round hole 2-1/16" in diameter. 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". Dakota
Digital CUP-3001 also available, see Page 3 for details.
Factory settings:
Sender type:
Lo warning point:
Hi warning point:

The oil pressure gauge will operate and read correctly between the pressure range of 0-400 psi, 0 – 150 psi, 0-
75 psi, or 0-30 psi depending on the sender type.

This gauge has a user adjustable low and high warning level, which can be set to indicate when the pressure is
too low or too high.
Sender choices:
Gauge Setting Max. pressure display resolution
150 150 psi
400 400 psi
75 73 psi
30 29 psi
These senders have a 1/8" NPT fitting. The fitting and sender threads should be cleaned before installation and no
tape or sealant should be used on the threads. The threads are self-sealing. Single terminal senders ground
through the threads or sender body, senders isolated from the frame will require alternate ground. Dual-terminal
senders have an isolated ground with terminals for both signal and ground.
Contact Dakota Digital if you need to special order a metric thread sender.
The sender must be a Dakota Digital part SEN-1031, SEN1032, or non-polished versions; SEN-03-1, 03-3, 03-
5, 10-1, or 10-2 . 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 "---".
HLY-3191 ROUND AIR PRESSURE, REV. A
Connect to a main ground location.
Connect to switched 12 VDC power. (An accessory terminal will work for this.)
Night Dimming: connect to the head light switch.
Connect to the pressure sender.
SEN-1031, 150 psi.
10 psi.
100 psi.
1.0
2.0
0.5
0.2
sender part number
SEN-1031(polished)
SEN-03-5
SEN-1032(polished)
SEN-10-1
MAN# 650100A