MLA-00012N
Revised 10-04
Section 78
TM
Installation Instructions for MurphyLink
Analog Gages Series: MLA20 and MLA35
00-02-0424
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
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.
Description
MLA35 Series
MLA20 Series
The MurphyLinkTM 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
MurphyLinkTM 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.
Basic 2 in. (51 mm) case models
MLA20-A-100-A
MLA20-B-250-A
MLA20-C-12-A
MLA20-C-24-A
MLA20-D-100-A
MLA20-E-400-A
MLA20-F-250-A
Engine Oil Pressure
Coolant Temperature
Voltmeter 12 VDC
Voltmeter 24 VDC
Specifications
Percent Load @ Current Speed
Gear Oil Pressure
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:
Gear Oil Temperature
Basic 3-3/8 in. (86 mm) case models
MLA35-T-3000-A
Tachometer
Voltage: 12 to 14 VDC (See NOTE below).
Maximum Current: 30 mA.
MLA35-S-85-A
Speedometer
NOTE: MLVC2412 Regulator required for 24 VDC Systems.
NOTE: All basic models listed above are available with Amp mini
universal (standard), Deutsch or Metri-Pack connectors.
Input: RS485 data (MurphyLinkTM 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.
CAUTION: These instruments are designed to be used ONLY
with the MurphyLinkTM Display and Diagnostic module (MDDM)
or other approved MurphyLinkTM products.
Enclosure: Environmentally Sealed.
Material:
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
Case and Clamp: Polyester (PBT).
Lens: Polycarbonate.
Bezel: Stainless Steel (Black optional).
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
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