Filter
Top Products
Installation Instructions for MurphyLink
TM
Analog Gages Series: MLA20 and MLA35
MLA-00012N
Revised 10-04
Section 78
00-02-0424
Description
The MurphyLink
TM
gages are a series of instruments designed to display the
information transmitted by the Murphy Display and Diagnostic Module
(MDDM) in a traditional analog format. Communication from the MDDM to
these units is via an RS485 twisted pair proprietary serial link. These
MurphyLink
TM
components are environmentally sealed, LED back lit (green)
and are available in a standard 2 in. (51 mm) diameter, plastic case. The
MLA35 Series models feature a 3-3/8 in. (86 mm) diameter, plastic case.
Specifications
Power Supply:
Input Voltage: 12V (10-16 VDC min. & max. voltage).
24V (18-32 VDC min. & max. voltage).
Operating Current: (@ 14 VDC) = MLA20: 27 mA min.; 50 mA max.
MLA35: 43 mA min.; 48 mA max.
Backlight:
Voltage: 12 to 14 VDC (See NOTE below).
Maximum Current: 30 mA.
Input: RS485 data (MurphyLink
TM
proprietary protocol).
Output: Analog Readout.
Operating Temperature: -40° to 185°F (-40° to 85°C).
Storage Temperature: -76° to 185°F (-60° to 85°C).
Dial: White numerals over black background:
MLA20: 90° sweep; MLA35: 250° sweep.
Gage Accuracy: MLA20: Better than ±1.5% of scale.
MLA35: Better than ±2% of scale.
Enclosure: Environmentally Sealed.
Material:
Case and Clamp: Polyester (PBT).
Lens: Polycarbonate.
Bezel: Stainless Steel (Black optional).
Please read the following information before installing. A visual inspection of this product for damage during ship-
ping is recommended before mounting. It is your responsibility to have a qualified person install this unit.
GENERAL INFORMATION
Basic 2 in. (51 mm) case models
MLA20-A-100-A Engine Oil Pressure
MLA20-B-250-A Coolant Temperature
MLA20-C-12-A Voltmeter 12 VDC
MLA20-C-24-A Voltmeter 24 VDC
MLA20-D-100-A Percent Load @ Current Speed
MLA20-E-400-A Gear Oil Pressure
MLA20-F-250-A Gear Oil Temperature
Basic 3-3/8 in. (86 mm) case models
MLA35-T-3000-A Tachometer
MLA35-S-85-A Speedometer
NOTE: All basic models listed above are available with Amp mini
universal (standard), Deutsch or Metri-Pack connectors.
CAUTION: These instruments are designed to be used ONLY
with the MurphyLink
TM
Display and Diagnostic module (MDDM)
or other approved MurphyLink
TM
products.
NOTE: MLVC2412 Regulator required for 24 VDC Systems.
WARNING
BEFORE BEGINNING INSTALLATION OF THIS MURPHY PRODUCT
✔ Disconnect all electrical power to the machine.
✔ Make sure the machine cannot operate during installation.
✔ Follow all safety warnings of the machine manufacturer.
✔ Read and follow all installation instructions.
MLA20 Series
MLA35 Series
Warranty
A limited warranty on materials and workmanship is given with this
FWMurphy product. A copy of the warranty may be viewed or printed by
going to www.fwmurphy.com/warranty.asp
.
In order to consistently bring you the highest quality, full featured products, we reserve the right to change our specifications and designs at any time.
Installation MLA-00012N page 1 of 2