Omega Products OM-51 User Manual
1
To Order, Call or Shop Online at
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SM
OM-50 Series Portable Low Cost Data Loggers Part of the NOMAD® Family
$
76
Basic Unit
⻬ Model OM-51 Monitors
Contact Closures
⻬ Model OM-52 for Motor
On/Off Applications
OM-50 Series data loggers record
when devices change between on
and off or open and closed states
and store the time, date and state
for each change (the black arrows
in the diagram below show when
data is recorded).
These data loggers have two LED
indicator lights, one red and one
green. One of these LED’s will blink
every two seconds. If the contact is
open or the device is off, the red
LED will blink. If the contact is
closed or the device is on, then the
green LED will blink. Although the
LED’s blink every other second, the
state is checked every half second,
with state changes recorded as
detected. Simply connect the data
logger to your PC using the
RS-232 cable and download stored
data using the Windows software.
Specifications
GENERAL
Measurement Capacity:
2000 state changes
Time Resolution: 0.5 seconds
Minimum State Duration:
0.5 seconds
Memory Modes: Stop
when full, wrap-around
when full (user selectable)
Memory: Non-volatile
EEPROM memory retains
data even if battery fails
Operation: Blinking LED
lights show current state
OM-51 data
logger, $76,
shown
larger than
actual size
OM-52, $76,
shown larger
than actual
size
OM-51 monitors contact closures
OM-51 Time-based data plot
Data logger launch menu
Time Accuracy: ±1 minute per
week at 20°C (68°F)
Operating Temperature:
-20 to 70°C (-4 to 158°F)
Operating Humidity:
0 to 95% non-condensing
Storage Temperature:
-20 to 70°C (-4 to 158°F)
Power: 3.6 V lithium battery
Battery Life: 1 year
Dimensions: 68 x 48 x 19 mm
(2.4 H x 1.9 W x 0.8 D )
Weight: 29 g (1 oz)
Measurement
Specifications
OM-51 STATE DATA LOGGER
Inputs (two inputs):
A magnetic sensor mounted in the
data logger and an external cable
for detecting contact closures
(external cable is included).
Spacing Between Data logger
and External Magnet:
Closed, less than or equal to 3/4";
open, greater than or equal to 3/4"
(external magnet is included)
External Contact Input: Passive
relay switch or contact closure
OM-52 MOTOR ON/OFF
DATA LOGGER
Sensor Type:
AC field sensor Magnetic Field
Threshold: approx. 2 Gauss at
60 Hz; the logger will typically work
with AC motors drawing 1A or more
Mounting: Mount the data logger
on or close to the motor housing or
to one phase of the power line to
the equipment being monitored
Angular Response: The data
logger is sensitive to that part of the
AC field that is perpendicular to the
datalogger’s face
To Order
(Specify Model Number)
Model No. Price Description
OM-51 $76 State data logger
OM-52 76 Motor on/off data logger
RD-TEMP-SW-A 55 Windows 98/NT/2000/XP software and RS-232 interface cable
with DB9F termination for OM-50 Series data loggers
OM-40-BATT 15 Replacement 3.6V lithium battery for OM-50 Series (package of 10)
Data loggers are supplied with complete operator's manual and mounting kit (hook/loop, magnet and tape). The
OM-51 State data logger includes external magnet and external input cable for detecting contact closures.
Ordering Example: OM-51 state data logger and RD-TEMP-SW-A Windows software, $76 + 55 = $131.
ALL MODELS AVAILABLE FOR FAST DELIVERY!
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