Omega Products OM-VLT User Manual

E-1

$

255

Basic Unit

OM-VLT

Temperature Data Logger with Built-In Printer

Model OM-VLT is a programmable
temperature data logger, strip
recorder and alarm device with
integral digital display. The easy to
follow menu driven programming
is done via the front panel keys.

The unit records, saves and prints
up to 290 temperature readings at
predefined intervals. The OM-VLT
produces an alarm when the
temperature goes out of the
defined range or after the
temperature remains out of range
for a certain period of time. The
OM-VLT prints temperature data
directly via the integral printer and
can also send temperature data to
an external PC. Communications
with a PC is done by using
Windows Hyperterminal software
so no additional software is
required. The OM-VLT can also
send alarms to an external device
via the built-in relay contact.

Specifications

Temperature Sensor: Solid state

IC, 10 m (33') long sensor probe
wire, 0.2” diameter

Temperature Measurement
Range: -40 to 130°C

(-40 to 266 °F)

Temperature Measurement
Accuracy: ±1°C (±1.8°F)
Temperature Writing and Storage
Resolution:

0.1°C (0.2 °F)
Sample Rate: Programmable
between 1 and 90 minutes in 1
minute intervals
Memory: Data logger saves
the last 290 measurements; logging
starts as soon as the
unit is turned on
Computer Interface: RS-232: 9600
baud, 8 data bits, parity none, 1
stop bit, flow control none
LEDs: Power, low battery, out of
paper, sensor, min, max

⻬ Monitors,

Logs, Prints
and Displays
Temperature
Data vs Time

⻬ Menu Driven

Programming via
Front Panel Keys

⻬ 290 Historical

Temperature
Readings – Data Can
be Printed or Sent
to PC on Request

⻬ Real Time

Temperature
Printing – Three
Printing Modes

⻬ Integral Temperature

Display – Max/Min
on Request

⻬ Adjustable Hi/Lo

Alarm Thresholds
and Alarm Delay

⻬ Local Audible/Visual

Alarm Indication

⻬ Alarm Relay

for Remote
Alarming Applications

⻬ RS-232 Port for

Exporting Real
Time Data to PC – No
Software Needed

⻬ Low Battery, Chart

Ending and No Sensor
Indicators

⻬ Extendable Remote

Temperature Sensor

OM-VLT, $255, shown
smaller than actual size

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E

Alarms: High and low temperature,
end of paper, no sensor; audible
(internal buzzer)/visual (alarm
LED)/normally open relay contact

Audible Alarm (Internal Buzzer):

Some alarms trigger the internal
alarm buzzer. The buzzer can be
silenced by pressing EXIT on the
front of the data logger or by
connecting the optional remote
buzzer silencer switch (OM-VLT­SK) which momentarily shorts the
buzzer silencer contacts on the data
logger. The alarm buzzer can also
be enabled or disabled via the data
logger front panel menu
programming.

Temperature Alarm Operation:

If the measured temperature goes
outside the maximum or minimum
temperature limits for an amount of
time equal to the defined alarm
delay period (if any), an alarm is
sent – the internal buzzer sounds
(if enabled), an alarm is sent to an
external device via the alarm relay
contact (if enabled) and the alarm
LED lights.

Disconnected Temperature
Sensor Alarm Operation: If the

temperature sensor is disconnected
the display shows the message
nOS, the alarm LED lights and the
internal buzzer sounds (if enabled).

To Order

(Specify Model Number)

Model No. Price Description

OM-VLT $255 Temperature data logger with printer
OM-VLT-SENSOR 16 Spare temperature sensor, 10 m (33')
OM-VLT-PAPER 4 Replacement paper roll, 40 m (131')
OM-VLT-115-ADAPTOR 19 115 Vac/12 Vdc power adaptor
OM-VLT-230-ADAPTOR 18 230 Vac/12 Vdc power adaptor
OM-VLT-BAT 2 3.6 V lithium battery
OM-VLT-BRKT 6 Wall mounting bracket
OM-VLT-PACO 6 Paper compartment cover
OM-VLT-BACO 6 Battery compartment cover
OM-VLT-SK 55 Alarm buzzer remote silencer kit
OM-VLT-CABLE10H 23 Temperature sensor extension cable, 3 m (10')
OM-VLT-CABLE33H 28 Temperature sensor extension cable, 10 m (33')
OM-VLT-PR 143 24 Vdc/ 12 Vdc power reducer
OM-61-RS232-DB9 14 1.8 m (6') RS-232 cable DB9F termination

ALL MODELS AVAILABLE FOR FAST DELIVERY!

OM-VLT data loggers include 2 thermal chart paper rolls, wall mounting bracket, paper compartment cover, battery compartment cover,

3.6 V lithium battery, 115Vac/12 Vdc power adaptor, remote temperature sensor 10 m (33' long) and complete operator’s manual.

Ordering Example: OM-VLT temperature data logger with printer and OMEGACARE

SM

1 year extended warranty for OM-VLT

(adds 1 year to standard 1 year warranty), $255 + 25 = $280.

Download data using Windows
Hyperterminal - no extra software
is required.

End of Paper
Alarm Operation:

If the printer paper runs out,
the internal buzzer sounds (if
enabled), an alarm is sent to an
external device via the alarm
relay contact (if enabled) and the
out of paper LED lights.

Alarm Relay: 1 A, 12 Vac/Vdc
Alarm Delay Range: User

selectable; No delay, 10 min,
30 min, 1 hr, 2 hrs
Printing Modes: There are
three printing modes; full text
report (small font), time and
temperature (large font),
graph format

Chart Speed Accuracy: ±1%
Time Accuracy: ±80 ppm

@ 75 °F (24°C)

Thermal Chart Paper
Dimensions: 2" wide x 131' long
Display: 4 character numeric LED
Power: 12 Vac/Vdc via included

115 Vac 50/60 Hz adaptor
Battery Backup: 9 V alkaline
for up to 60 hours operation
Clock Battery: CR2032 coin cell,
used for saving logged data and
configuration settings and for
running the real-time clock

Operating Environment:

-18 to 65°C (0 to 150 °F),
0 to 95% RH non-condensing

Storage Temperature:

-40 to 65°C (-40 to 150 °F)
Mounting: Vertical or horizontal,
free standing, wall or panel mount
(wall mount bracket included)

Dimensions:

209 W x 135 H x 69 mm D
(8.2 x 5.3 x 2.7")
Weight: 1.3 Kg (2.9 lbs)
including chart paper