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FCLTX-Series
PVC Free Chlorine Transmitter
- Direct 4 to 20 mA Output
- Amperometric Technology
- 500V Input to Output Isolation
- Multiple Ranges Available
FCLTX-Series
From
$
1,873.23
Product Overview
- Additional Features 1 Integrated Temperature Compensation
- Body Material PVC
- Cable Length 3 m
- Compatibility Up to 50% ethanol/water, up to 50% glycerol/water
- Electrical Output 4 to 20 mA
- PH Measurement Range 5.5 to 9
- Measurement Pressure, Max 1 bar
- Process Connection Size 1/4 in
- Process Connection Type NPT Female
- Sensitivity Bromine, ozone and ClO2 (chlorine dioxide)
- Series ID FCLTX-Series
- Supply Current 250 mA
- Supply Voltage 12 to 24 Vdc
- Temperature Measurement, Max 45 °C
- Temperature Measurement, Min 0 °C
- Volumetric Flow Rate, Max 135 l/h
- Volumetric Flow Rate, Min 45 l/h
Supported Applications
The Omega FCLTX Series consists of free chlorine sensors designed for water treatment disinfection applications. These amperometric sensors measure free chlorine (HOCl and OCl-) in water using an electrochemical method. The series is intended for use with chlorine generators, pools, and similar installations where ppm-level detection is required.
The sensor must be installed within a flow cell to prevent air bubbles and ensure laminar flow; the FC72 Flow Cell is specified as the compatible housing unit. While the sensors can serve as replacements for other 4-20 mA output free chlorine (FCI) sensors, they are not selective for free chlorine alone when using DPD-based methods, meaning other oxidants may also be measured.
Operating Conditions & Performance
The FCLTX Series operates within a process temperature range of 0 to 45°C (32 to 113°F). The maximum operating pressure is rated at 1 bar / 14.7 psi / 1 atm, with flow rates maintained between a minimum of 0.2 gpm and a maximum of 0.6 gpm.
Measurement ranges are available in three configurations: 0 to 2 ppm, 0 to 5 ppm, and 0 to 10 ppm. The output signal is specified as 4-20 mA (specifically noted as 4.0 +/- 0.2mA at zero/air and 20mA +/- 0.2mA at high range). Power requirements are 12-24 VDC with a minimum of 250 mA.
Performance is pH-dependent, requiring automatic pH compensation if variation exceeds specific thresholds: ± 0.35 for pH 6.5–7.5; ± 0.20 for pH 7.5–8.3; and ± 0.05 for pH 8.3–9.0. The sensor is sensitive to cross-sensitivity from ClO2, ozone, and bromine.
Configuration Options
The series offers configurable measurement ranges via specific model numbers: FCLTX-102 (0 to 2 ppm), FCLTX-105 (0 to 5 ppm), and FCLTX-110 (0 to 10 ppm). Each sensor includes a 3 m (10') 2-conductor shielded cable with tinned wire leads.
Wetted materials include Black PVC for the body, polyethersulfone membrane, Viton® O-rings, Gold cathode, and Silver chloride (AgCl) anode. The sensor is compatible with media containing up to 50% ethanol/water or up to 50% glycerol/water.
Key options and accessories include:
- FC72 Flow Cell: Acrylic housing with 1/4" FNPT inlet and outlet connections, including barbed tube fittings and installation hardware.
- FCL-RM Replacement premembraned cap: For sensor maintenance.
- FCL-ES Free Chlorine sensor fill solution: 30 mL electrolyte replacement.
- DPI32 Process Indicator: A ½ DIN display option for local monitoring.
Installation requires a conditioning period of 4 hours for new sensors, or after membrane/electrolyte replacement. Sensors un-powered for more than 2 hours require 3 hours of re-conditioning before use.
Key Product Differences
The primary distinction among the FCLTX Series models is the measurement range:
- FCLTX-102: Configured for a 0 to 2 ppm free chlorine range.
- FCLTX-105: Configured for a 0 to 5 ppm free chlorine range.
- FCLTX-110: Configured for a 0 to 10 ppm free chlorine range.
All models share the same physical dimensions (8.2"L x 1" dia sensor; FC72 flow cell is 5.58"H x 2.25"DIA), electrical output, and power requirements. The series does not support water containing surfactants, organic chlorine, or stabilizers such as cyanuric acid.
PDFs & Manuals
Show Ratings & Reviews
HI team Omega, can you share data detail for calibration 1 set free chlorine analyzer on Manufacturing, we already buying ( DPI16,FCLTX-110, and FlowCell72) please advice
Thank you for your inquiry! When received the sensors should be span calibrated but the zero point should not have to be adjusted. Using the right potentiometer the output can be increased or decreased to match with the testing samples thus ensuring the proper output based on the units range. The DPi16 will have to be scaled for the 4-20 mA signal according to the process in the manual. This will allow for the screen to display in ppm based on the 4-20 mA input. If you have further questions please feel free to contact us by email at flow@omega.com.
Date published: 2022-03-21