Page 1
User’s Guide
omega.com
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FLSC790-P-DC
External Power Module
Installation Sheet
Page 2
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The information contained in this document is believed to be correct, but OMEGA Engineering, Inc. accepts no liability for any
errors it contains, and reserves the right to alter specifications without notice.
WARNING: These products are not designed for use in, and should not be used for, patient-connected applications.
Page 3
External Power Module Installation Sheet
The FLSC790-P-DC external power module
for the FLSC790-P allows for 9-30 Vdc external power for the pulse output. Internal
batteries in the display can be used as an auxiliary power source.
This external Power Module Kit is designed
as an additional supplemental module to the
Pulse Access Module, Part Number
FLSC790-P . When installed, this kit provides
external power only or external power with
a frequency output.
This FLSC790-P provides a digital open collector signal. The frequency of the signal is
determined by the turbine’s K-factor, which
is etched on the turbine, and flow rate. Reference the illustration below as necessary.
NOTE: This External Power Module is not
FM A pprov ed. Use of this module with
approved metering systems voids FM
Approval.
Refer to the instructions provided with the
Pulse Access Module and install that module up to and including Step 7.
At that point, install this External Power
Module to the back of the coverplate using
the terminal strip molding in the coverplate.
Insert the spade connectors under two outside terminals and tighten the screws.
Connect the red and black wires from the
display to the terminal block on the External
Power Module. Connect incoming power
wires to the terminal strip with the spade connectors. If a signal is desired, connect the
white wire from the computer to the incoming wire using the center terminal in the terminal strip.
Use an 820 ohm (minimum) pull-up resistor
if the customer interface device is not
equipped.
▼
1.500
DISPLAY (BOTTOM VIEW)
▼
▼
.900
▼
Page 4
Where Do I Find Everything I Need for
Process Measurement and Control?
OMEGA… Of Course!
TEMPERATURE
✓
Thermocouple, RTD & Thermistor Probes, Connectors, Panels & Assemblies
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Wire: Thermocouple, RTD & Thermistor
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Calibrators & Ice Point References
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Recorders, Controllers & Process Monitors
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PRESSURE, STRAIN AND FORCE
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Transducers & Strain Gauges
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Load Cells & Pressure Gauges
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Instrumentation & Accessories
FLOW/LEVEL
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Rotameters, Gas Mass Flowmeters & Flow Computers
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Air Velocity Indicators
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Turbine/Paddlewheel Systems
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Totalizers & Batch Controllers
pH/CONDUCTIVITY
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pH Electrodes, Testers & Accessories
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Benchtop/Laboratory Meters
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Controllers, Calibrators, Simulators & Pumps
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Industrial pH & Conductivity Equipment
DATA ACQUISITION
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HEATERS
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Heating Cable
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ENVIRONMENTAL
MONITORING AND CONTROL
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Refractometers
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Air, Soil & Water Monitors
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Industrial Water & Wastewater Treatment
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pH, Conductivity & Dissolved Oxygen Instruments
M3220 5/99
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