
integral or remote  
signal conditioner
FLSC-C3-LIQ
U DC or AC Powered 
U Pulse and Analog Outputs  
U High and Low Alarms (Optional) 
U 20 Point Linearization 
U Factory Configuration 
Available
U  Windows
Configuration  
Software*
The FLSC-C3-LIQ is a DC powered, 
microprocessor controlled  
transmitter. It outputs a pulse scaled 
per unit of flow, and analog signal 
proportional to flow rate. The  
FLSC-C3-LIQ-AL can be configured 
with high and low alarms. They are 
designed for integral mounting to  
the FTB-100 and FTB-200 Series** 
liquid turbines. 
 Visit omega.com/ftb100 and 
**
omega.com/ftb200 for details
®
³⁄₄-14 NPT 
Conduit  
Hubs
121 
(4.75)
133 
(5.23)
FLSC-C3-LIQ shown 
smaller than actual size.
122 
140 
(5.5)
156 
(6.125)
(4.81)
Dimensions: mm (inch)
92 
(3.63)
7.9 
(0.31)
F
SPECIFICATIONS
Input Signal Type: Magnetic pickup, 
MCP pickup, contact closure, pulse
Input Frequency Range: 0.2 Hz to 4 KHz 
Signal Level: 10 mV rms to 30 Vdc 
Power Supply: 13 to 30 Vdc reverse 
polarity protection 
Analog Output: 4 to 20 mA, 1 to 5V 
24 mA overflow condition 
Load Resistance: Maximum 650 Ω at  
24 Vdc
Accuracy: ±0.02% of full scale 
Temperature Drift: 40 ppm/degree C 
Pulse Output: 0 to 5V, 0 to 10V, open 
collector, AC square. Internal pull up 
10 kΩ. Recommended minimum 
load resistance 50 kΩ 
Pulse Scaling: Divide by 1, 10 or 100 per 
flow unit 
Hi/Lo Alarm (-AL Model) Optional:  
Relay (2A, 30 Vdc), 0 to 5V, open  
collector (0.5A, 30V) 
Communications: RS232 port for  
configuration and diagnostics 
Operating Temperature: -40 to 85ºC 
(-40 to 185°F)
6 (0.25) Diameter Mounting Holes
Enclosure meets Class I, Div 1 & 2, Groups A, B, C & D. Class 1, Zones 1 & 2, 
Groups IIB + H2IIA. Class ll, Div 1 & 2 Groups E, F & G. Class lll. NEMA 3, 4 7(B, C, D) 
9(E, F, G). Cenelec EEx d llC IP66, UL, CSA, FM Approved. ATEX Certified.
Humidity: 0 to 90% non-condensing 
Enclosure: Extruded aluminum
explosion-proof ATEX
To Order Visit omega.com/flsc-c3-liq for Pricing and Details
 Model No.  Description 
 FLSC-C3-LIQ  DC powered signal conditioner 4 to 20 mA, CE ATEX 
 FLSC-C3-AL-LIQ DC powered signal conditioner 4 to 20 mA, alarm CE ATEX 
 OM-CONV-USB  USB to RS232 converter 
 FLSC-C-CABLE  Molex to 9-pin “D” connector
Comes complete with operator’s manual and enclosure.
 Available free at omega.com/ftp
*
Ordering Example: FLSC-C3-LIQ, DC powered turbine signal conditioner with  
FLSC-C-CABLE Molex to 9-pin “D” connector.
Regulatory: CE Compliant up to 20 point 
linearization Windows 
Software* (cable sold separately)
®
 Configuration 
F-1