Omega Products FC-21-EXP User Manual

MULTIFUNCTION FLOW COMPUTERS

FC-21

Starts at

$

775

FC-21, $775, shown

smaller than actual size.

68 x 138 mm
(2.67 x 5.43) cutout

⻬ Custody Transfer with Audit Trail
⻬ Liquid, Gas, Steam,

and Heat Flow Equations

⻬ Menu-Selectable Inputs/Outputs
⻬ Isolated Pulse and Analog Outputs
⻬ RS232 Communications with

Windows Setup Software

FC-22

Starts at

$

1080

FC-22-V, $1185, shown
smaller than actual size.

OMEGA’s FC-21 and FC-22 flow computers are useful
in a variety of flowmeter applications. The FC-21 is
suitable for liquid batching, volumetric batching, and
corrected-volume applications. The FC-22 is designed
for liquid, gas, steam, and heat applications. Both
models can store multiple flow equations.

These versatile instruments are programmable from
the front panel. During setup, the user can assign
inputs and outputs. For example, the isolated analog
output can monitor the volume flow, corrected-volume
flow, mass flow, temperature, pressure, or density.
The RS232 serial port allows for data logging,
transaction printing, or connection to a modem for
remote meter reading.

M-27

FC-21/22 Front Dimensions

Extended Warranty

Program

SM

SPECIFICATIONS

Environmental

Operating Temperature: 0 to 50°C

(32 to 122°F)
Storage Temperature: -40 to 85°C

(-40 to 185°F)
Relative Humidity: 0 to 95%,

non-condensing
Display Type: Alphanumeric, 2 lines,

7.6 mm (0.3") characters, backlit LCD
or VFD (specify at time of order)

Mounting: Panel, wall mount
Power Supply:

FC-21: 110, 220 Vac standard;

12 or 24 Vdc optional
FC-22: 85 to 275 Vac standard;
24 Vdc optional

Signal Inputs

Pulse:

High-Level Pulse:

Low = 0 to 1 Vdc; high = 3 to 30 Vdc

Low-Level Pulse:

10 mV or 100 mV (magnetic pickup)

Frequency: Up to 20 kHz

Analog

Voltage: 0 to 10 Vdc, 0 to 5 Vdc,

1 to 5 Vdc (FC-21 only)

Current: 4 to 20 mA, 0 to 20 mA

Temperature Input

RTD: 100 Ω DIN RTD
Auxiliary/Compensation:

FC-21: Temperature, density
FC-22: 2 temperature,

pressure, density

Excitation Voltage:

FC-21: Programmable—5 Vdc,

12 Vdc or 24 Vdc @ 100 mA,

FC-22: Fixed @ 24 Vdc

Relays: Menu assignable for each

relay; 2 SPDT relays rated 5 A, 240 Vac
or 30 Vdc; Contact Flow Engineering
for additional information

Isolated Output: Menu assignable
Analog: 4 to 20 mA; 1000 Ω max load
Pulse: Open collector; 24 Vdc

(FC-22 only)

FC-21/22 Side Dimensions

OMEGACARESMextended warranty

program is available for models shown on

this page. Ask your sales representative

for full details when placing an order.

OMEGACARESMcovers parts, labor and

FC-21/22 Panel Cutout

equivalent loaners.

MOST POPULAR MODELS HIGHLIGHTED!

To Order (Specify Model Number)

Model No. Price Description
FC-21 $775 Multifunction flow computer for liquid applications
FC-22 1080 Multifunction flow computer for liquid, gas, steam,

FC-21-V 880 Multifunction flow computer with VFD display
FC-22-V 1185 Multifunction flow computer with VFD display
FC-21-NEMA 965 Flow computer with NEMA 4 (IP65) wall mount
FC-22-NEMA 1265 Flow computer with NEMA 4 (IP65) wall mount
FC-21-EXP 1725 Flow computer factory mounted inside explosion-proof box

FC-22-EXP 2030 Flow computer factory mounted in explosion-proof box

Options

Suffix Price Description

-220VAC N/C 220 Vac power option (optional for model FC-21,

-12VDC N/C 12 Vdc power option (available for FC-21 only)

-24VDC N/C 24 Vdc power option

-RS485 310 RS485 serial connector

Comes complete with operator’s manual.

Ordering Examples: FC-21, multifunction flow computer for liquid applications, $775.
OCW-3, OMEGACARESMextends standard 2-year warranty to a total of 5 years, ($194),

$775 + 194 = $969.
FC-22, multifunction flow computers for liquid, gas, steam and heat applications, $1080.

Recommended Reference Book: Incompressible Flow Turbomachines,

FW-320, $105. Visit omega.com/bobi for Additional Books

and heat applications

(no button access)

(no button access)

85 to 275 Vac power standard on model FC-22)

M-28

M