Omega Products OMA-VM540 User Manual

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OMA-VM540 and OMA-VM541
SERIES

OMEGAPHONE Alarm Dialer

Four Temperature Channels Plus Four Powered
Inputs with Optional Ethernet Data Collection

$

445

Basic Unit

The OMA-VM540 monitors the
temperature of up to four areas
and up to four 12 Vdc powered
inputs. The OMA-VM541 monitors
the temperature of up to four areas
and up to four 24 Vac powered
inputs. The OMA-VM540 and
OMA-VM541 will call and alert you
with a voice message or a pager
alert when a temperature is out of
limits and your valuable equipment
is in danger of being damaged.

The OMA-VM540 and OMA-VM541
will call you if power is lost at any
input or the auxiliary alarm input
becomes active.

Remote Status Checking

The OMA-VM540 and OMA-VM541
can be called at any time to check
the status of any input.

Emergency Phone Calls

When a temperature input is
out of programmed limits, a
power input changes from its
normal state, the power at the
wall-mount power adapter is out,

⻬ Monitors The

Temperature of Up
to Four Individual
Areas and Up To
Four Powered Inputs

⻬ Monitors One Dry

Contact (Switch
Closure) Input

⻬ Programmable High

and Low Temperature
Limits and Alarm Time
Delay for Each Room

⻬ Programmable “Normal”

Power State and Alarm
Time Delay for Each
Power Input

⻬ Programmable Alarm

Time Delay for Auxiliary
Dry Contact Input

⻬ Calls up to Four

Programmable
Phone Numbers

⻬ Call and Hear the

Temperature, Power,
or Input Status
Any Time

⻬ Pager Compatible

Leaves Call
Back Number on
Numeric Pagers

⻬ Programmed Settings

are Never Lost!

⻬ Recordable Greeting

Message and Input
Identification Messages
for Each Input

⻬ Rechargeable Backup

Battery (Included)

OMA-VM541, $645, shown smaller than actual size

or a contact closure occurs on
the auxiliary dry contact input the
OMA-VM540 and OMA-VM541 will
dial all programmed phone numbers
until contact is made. If contact has
not been made after dialing all
phone numbers, the OMA-VM540
and OMA-VM541 will wait twenty
minutes and then begin calling
again.

This sequence is repeated until
contact is made. When the
OMA-VM540 and OMA-VM541
is calling a standard voice number,
it will play the recorded alarm
message and the current alarm
condition. The OMA-VM540 and
OMA-VM541 will then prompt the
user to enter the PIN. When the
correct PIN is entered, contact has
been made.

The OMA-VM540 and OMA-VM541
will stop calling until a new alarm
condition occurs. When the
OMA-VM540 and OMA-VM541
calls a pager number, it will transmit
the programmable Local ID Number
for display on the pager screen.

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G

Ethernet Data Collection

The optional Ethernet data
collection package allows you
to remotely check the dialer status
with a standard web browser.

Using this package you can view
real time data, view historical data,
automatically send alarm emails
to key personnel that specify the
exact location and cause of the
problem, maintain secure data
files, easily create and print graphs
over specified time periods for
any data and also program
temperature limits and power
input parameters remotely.

General Specifications

Telephone: Standard RJ11

phone jack connector

Telephone Numbers:

Stores up to four phone
numbers up to 20 digits long

Recording Time for the
Local Identification
Message: 5 seconds
Recording Time
for Individual Channel
Identification Mesages:

2 seconds
Alarm Notification: Alarm siren
sounds and alarm relay closes if
any temperature input goes out of
limits, a powered input changes
state, or the auxillary alarm input
becomes active.
Alarm Cancellation: Pushbutton
on front of the unit silences the
alarm and cancels the emergency
telephone calls.

Display: Integral LCD display
Power Requirements:

120 Vac at 50/60 Hz wall mount
transformer (included)
Battery Backup: 4-hour
rechargeable battery backup;
20-hour or 30-hour optional

Electrical Connections:

Pluggable 12 position
terminal blocks

Ambient Operating
Conditions: 0 to 51°C

(32 to 125°F)

Material: ABS plastic
Dimensions:

117 H x 223 W x 57 mm D
(4.62 x 8.79 x 2.26")

Weight: 0.9 kg (2 lbs)

Specifications
OMA-VM540

Temperature Inputs: 4
Temperature Measuring Range:

-40 to 212°C (-40 to 100°F)

Temperature Sensor Type:

2-wire 1000Ω Pt RTD, ␣ =.00385

Accuracy: ±1°C (2°F)
Resolution: 1°C (1°F)
Powered Inputs: 4
Powered Input Range: 12 Vdc

OUTPUTS:
Relay: 30 V dc 1A contacts
Alarm Buzzer: 85 dB

OMA-VM541

Temperature Inputs: 4
Temperature Measuring Range:

-200 to 200°C (-328 to 392°F),

Accuracy: ±1°C (2°F)
Resolution: 1°C (1°F)
Temperature Sensor Type:

2-wire 100Ω Pt RTD, ␣ =.00385

Powered Inputs: 4
Powered Input Range: 24 Vac

OUTPUTS:
Relay: 30 Vdc 0.5A contacts
Alarm Buzzer: 85 dB

Ethernet Data Collection

LAN: Ethernet 10Base-T or

100Base-TX (auto-sensing)

Transport Protocol:

TCP/IP, UDP

Connector: RJ45
LED Indicators: 10Base-T

connection, 100Base-TX
connection, link and activity
indicator (full/half duplex)

OMA-VM541, $845,
shown smaller
than actual size