Murphy MLA20 installation instructions Description, Specifications, Basic 2 in mm case models

MLA-00012N

Installation Instructions for MurphyLinkTMRevised 10-04

Section 78

00-02-0424

Analog Gages Series: MLA20 and MLA35

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

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.

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.

NOTE: MLVC2412 Regulator required for 24 VDC Systems.

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.

Enclosure: Environmentally Sealed.

Material:

Case and Clamp: Polyester (PBT).

Lens: Polycarbonate.

Bezel: Stainless Steel (Black optional).

MLA20 SeriesMLA35 Series

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 MurphyLinkTM Display and Diagnostic module (MDDM) or other approved MurphyLinkTM products.

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.

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