Murphy RMU16 User Manual

RMU16 Model

Description

The RMU16 is a powerful component for remote
equipment monitoring, control and datalogging.

The RMU16 performs functions such as
remote alarm monitoring and processing, start
and stop via touch-tone telephone or personal
computer, automatic dial out with built-in
voice annunciation, data logging, data acquisi­tion, and telecommunications.

The RMU16 features include a real time clock,
built-in modem and password protection. The
unit can be powered by 10-32 VDC systems
and it comes loaded with operating software.

The RMU16 includes eight (8) analog inputs
and two (2) relay outputs. Each of the eight (8)
inputs accepts 4-20 mA signals such as
Murphy’s PXMS pressure transducers, RTDT,
RTDTX temperature transmitters (NOTE:
PXMS, RTDT, RTDTX require 24 VDC power
supply). One of the analog inputs can be con­figured to accept a magnetic pickup input for
speed monitoring.

The RMU16 accepts BCD inputs, such as
those provided by Murphy’s MARK III digital
annunciator, allowing for remote monitoring
of the annunciator sensor inputs.

The RMU16 also provides two (2) form “C”
relay outputs for ON/OFF control applications.

Basic Operation

The RMU16 module allows you to communi­cate in Data or Voice mode. Both the Data and
Voice modes allow access to your equipment at
any time via standard touch-tone dial tele­phones or a personal computer.
When operating the RMU16 in Data mode, an
ASCII terminal or computer is used to access
various functions. Commands are entered on
the keyboard, and response messages are dis­played on the monitor.

The commands to access the information are
simple 3-letter codes (e.g. INP = input, ALM =
alarm, PHO = telephone), generally followed
by a fourth letter (e.g. R = report, S = set).

In Voice mode, the RMU16 can be called to
inquire into conditions and status. When an alarm
condition exists, the RMU16 will automatically
call the telephone numbers pre-programmed.

Applications

●

Voice alarming systems

●

Remote monitoring upgrade for panels
containing Murphy Mark III annunciators

●

Remote compressor sites

●

Flood control

●

Pumps and engines

Standard Features

User Definable Inputs

Each of the 4-20 mA analog inputs has program­mable alarm and control setpoints. The RMU16
will scale to engineering units when the user enters
top of scale and bottom scale values. It accepts a
wide range of inputs in any combination. The
optional frequency input is to measure RPM.
The RMU16 BCD interface is compatible with
Murphy’s digital annunciators, allowing the
RMU16 to monitor 32-48 digital inputs as well.

Control Over Standard Phone!

Experience the convenience of inquiry into con­dition and status from any standard telephone.
Control outputs may be turned on or off via
touch-tone. Analog values and BCD status are
reported in clear digitized speech, allowing the
user to perform control functions and check on
their effects almost instantaneously.
Data mode allows the user to review I/O, reconfigure
the unit remotely, and download datalogger records.

Works with Any ASCII Terminal.
There is no need for specialized SCADA

®

or
MMI®software. The open protocol allows virtu­ally any communications package to communi­cate with the unit. The user may simply opt to
run Hyper-Terminal®under Windows®to do con­figuration, control the unit and perform other
SCADA®functions.

■

Remote Status Inquiry by Telephone or Computer

■

Automatic Alarm Dial Out with Built-In Voice
Annunciation to Eight Telephone Numbers

■

Broad Communications Capability, Built-In Modem and
Datalogger with Real Time Clock

■

Uses Any Communication Software or ASCII Terminal

■

Seven Analog Inputs (8-Bit Resolution) Plus
Speed Input or Additional Analog

■

Direct Interface to Digital Annunciator via BCD Port

■

Class I, Div. 1, Grps. C & D, Explosion-Proof Enclosure

®

FRANK W.

MFR.

Remote Monitoring Unit

RMU-97069B
Revised 07-99

Catalog Section 50

(00-02-0318)

All products indicated by trademark symbols are trademarked and/or registered by their respective companies.

SIDE VIEW

RMU16-LC (less case)

CIRCUIT BOARD MOUNTING

TOP VIEW

TOP VIEW

5-15/16 in.

(151 mm)

10-5/8 in.

(270 mm)

8-5/8 in.

(219 mm)

7.35 in.

(187 mm)

5.5 in.

(140 mm)

4.70 in.

(119 mm)

6.45 in.

(164 mm)

4-1/2 in.

(114 mm)

9 in.

(229 mm)

3/4-14 NPT

conduit holes

(2) places

1/2-14 NPT conduit hole

Enclosure

Dimensions

Additional Features

■

Security Protection: 3 levels of
password security

■

Input scaling and calibration

■

X Modem Compressed Data Transfer

■

Cellular interface via Motorola®cellu­lar connection interface and bag phone

■

Explosion-proof enclosure for Class I
Division 1, Groups C & D

■

BCD fault interpretation

■

Data logger functions

■

Alarm acknowledgement

■

Remote control

Specifications

Power Input (Operating Voltage):

10 to 32 VDC.

Power Consumption: 9W.
Enclosure: 10-3/4 x 9 x 6 in.

(273 x 229 x152 mm).

Modem Speed: 2400 bps.
Analog Inputs: Eight (8) 8-bit resolution,

4-20 mA.

MPU Input: 1-48 Vrms, 0-10 kHz.
BCD Inputs: 8-bit, TTL logic level.
Digital I/O: Thru Fault-Annunciator (32).
Relay Outputs: Two (2), form “C”, 8 A @

250 VAC, 5 A @ 30 VDC.

Real Time Update: 2 seconds.
RJ-11 Ports: 2 (one passthru for handset).
Phone Line Protection: 500 Volts.
User Configuration Memory:

Non volatile, EEPROM.

Data Logger Memory: 2000 records.
Operating Temperature:

32-140°F (0 to 60°C).

Storage Temperature:

-4 to 185°F (-20 to 85°C).

Humidity: 5 to 95% non-condensing.
Shipping Weight: 22 lb. (10 kg).
Shipping Dimensions: 17 x 10 x 9-3/4 in.

(431 x 254 x 248 mm).

How to Order

Specify the model number:

Model Number Description

RMU16:

RMU16 model (50700076)

RMU16-LC:

RMU16 less case (50700077)

DA15M-36*:

BCD communications cable
3 ft. (1 m) long (50500335)

DA15M-96*:

BCD communications cable
8 ft. (2.43 m) long (50500336)

DA15M-96-EX:

Explosion-proof BCD cable
8 ft. (2.43 m) long (50700093)

00-00-5168:

RS232 communications cable

*For RMU16-LC or Non-hazardous Weatherproof mounting only.

Product Compatibility

Model Power Source

MARK III-BCD annunciator CD Ignition; 12/24 VDC
RTDT temperature transmitter 24 VDC
RTDTX temperature transmitter 24 VDC
PXMS pressure transmitter 24 VDC

Magnetic

Sensors

(Pickup)

MP3298 3 in. (76 mm) long; 5/8-18 UNF thread size
MP7906 3 in. (76 mm) long; 3/4-16 UNF thread size
MP7905 4-1/2 in. (114 mm) long; 3/4-16 UNF thread

Warranty

A two-year limited warranty on materials and workmanship is given with this Murphy product.

Details are available on request and are packed with each unit.

Printed in U.S.A.

®

FRANK W.

MFR.

■ FRANK W. MURPHY SOUTHERN DIVISION

P.O. Box 1819; Rosenberg, Texas 77471; USA

tel. [phone] fax [phone]
e-mail [e-mail]

■ FRANK W. MURPHY, LTD.

Church Rd.; Laverstock, Salisbury SP1 1QZ; U.K.

tel. [phone] fax [phone]
e-mail [e-mail]

http://www.fwmurphy.co.uk

■ FRANK W. MURPHY FRANCE
tel. [phone] fax [phone]

■ MURPHY DE MEXICO, S.A. DE C.V.

Blvd. Antonio Rocha Cordero 300, Fracción del Aguaje
San Luis Potosí, S.L.P.; México 78384

tel. [phone] fax [phone]
e-mail [e-mail]

■ FRANK W. MURPHY PTE., LTD.

No. 2 Tuas South Street 2,
Sprintecs Bldg., #02-01/02
Singapore 638042

tel. [phone] fax [phone]
e-mail [e-mail]

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.

■ MURPHY SWITCH OF CALIFORNIA

41343 12th Street West
Palmdale, California 93551-1442; USA

tel. [phone] fax [phone]
e-mail [e-mail]

http://www.murphyswitch.com

■ MACQUARRIE CORPORATION

1620 Hume Highway;
Campbellfield, Vic 3061; Australia

tel. [phone] fax [phone]
e-mail [e-mail]

FRANK W. MURPHY MANUFACTURER P.O. Box 470248; Tulsa, Oklahoma 74147; USA tel. [phone] fax[phone] [e-mail] http://www.fwmurphy.com

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