Liquisys M CCM223-253

Summary

Product Identification

• Product Name: Liquisys M CCM223/253
• Function: Transmitter for chlorine sensors (free chlorine, chlorine dioxide, total chlorine)

Application

• Drinking water
• Water treatment
• Cooling water
• Gas scrubbers
• Reverse osmosis
• Food processing
• Swimming pool water

Key Features & Benefits

• Field or panel-mounted housing
• Universal application
• pH compensation for free chlorine
• Simple handling via logical menu structure and CAL button
• Safe operation with overvoltage protection and configurable alarms

Functionality

Basic Version (EK)

• Measures free chlorine, chlorine dioxide, and total chlorine.
• Displays temperature; reading can be hidden.
• EP version: Allows simultaneous display of pH and redox measurements.

Calibration

• CCS140/141 (free chlorine) and CCS240/241 (chlorine dioxide): Zero-current-free, requires single-point calibration using a DPD reference value.
• CCS120 (total chlorine): Calibrated by entering a DPD reference value. Zero-point calibration is also possible (recommended for measurements below 0.1 mg/l).

Configuration

• Independent configuration of alarm contacts and error current for each error.
• Up to four contacts can be configured as limit contacts (including for temperature), P(ID) controllers, or for cleaning functions.
• Direct manual operation of contacts available.

Plus Package (ES)

• Manual pH compensation for free chlorine: Allows measurement at variable pH values.
• Current output configuration: Configurable via a table for bilinear or quasi-logarithmic curves.
• Process Check System (PCS): Monitors for plausible measured values and controller deviations.
• Live check: Alarms if the sensor signal does not change over a defined period.
• Automatic cleaning start.

EP Version Enhancements

• Includes all ES features.
• Optional pH or ORP measurement: Allows simultaneous measurement and control of pH or ORP.
• Automatic pH compensation for free chlorine when pH/ORP is measured.
• Sensor and process monitoring for pH/ORP.
• Limit contact for pH or ORP.
• pH value control.

Measuring System Components

Version 1 (Free Chlorine and Chlorine Dioxide)

• Transmitter: Liquisys M CCM223 or CCM253
• Sensor: CCS140/141 (Cl₂), CCS240/241 (ClO₂), or 963 (Cl₂)
• Assembly: Flow assembly CCA250 (not for sensor 963)
• Optional: pH/ORP sensor, INS proximity switch, various extension cables, junction box VBC.

Version 2 (Total Chlorine)

• Transmitter: Liquisys M CCM223 or CCM253
• Sensor: CCS120 (total chlorine)
• Assembly: Flow assembly CCA250 or immersion assembly CYA611
• Optional: pH/ORP sensor, INS proximity switch, various extension cables, junction box VBC.

Input

• Measured Variables: Total chlorine, free chlorine, chlorine dioxide, temperature. Optional: pH or ORP.
• Cl₂/ClO₂ Signal Input: 0 to 5000 nA (CCS120/140/141/240/241), -100 to 500 μA (Sensor 963).
• Temperature Sensor: NTC, 10 kΩ at 25 °C.
• Display Range (Temperature): 0 to 50 °C (32 to 122 °F).
• pH Measuring Range (Display): pH 3.5 to 9.5.
• ORP Measuring Range (Display): 0 to 1500 mV.
• Current Input: 4 to 20 mA, load ≤ 260 Ω.

Measuring Ranges (Application)

• CCS120: 0.1 to 10 mg/l
• CCS140/240: 0.05 to 20 mg/l
• CCS141/241: 0.01 to 5 mg/l
• Sensor 963: 0.05 to 5 mg/l

Temperature Compensation Range

• CCS140/240/141/241 and 963: 2 to 45 °C (36 to 113 °F)
• CCS120: 5 to 45 °C (41 to 113 °F)

pH Compensation Range (Free Chlorine)

• Measurement: pH 4 to 9
• Calibration: pH 4 to 8

Output

• Output Signal: 0/4 to 20 mA, active, galvanically separated.
• Signal on Alarm: 2.4 or 22 mA.
• Load: Max. 500 Ω.
• Resolution: Max. 700 digits/mA.
• Isolation Voltage: Max. 350 VRMS/500 V DC.

Communication Protocols

• HART: FSK + 0.5 mA via current output, 1200 Baud.
• PROFIBUS PA: Manchester Bus Powered (MBP), 31.25 kBit/s, voltage mode.
• PROFIBUS DP: RS485, selectable data rates up to 1.5 MBd.

Contact Outputs

• Switching Current: Max. 2 A (ohmic/inductive load).
• Switching Voltage: Max. 250 V AC, 30 V DC.
• Switching Power: Max. 500 VA AC, 60 W DC (ohmic).
• Delay: 0 to 2000 s.

Controller

• Functions: Pulse-length/pulse-frequency controller, three-point step controller for Cl₂/ClO₂.
• Response: P, PI, PD, PID, basic load dosing.
• Parameters: Kp (0.01 to 20.00), Tn (0.0 to 999.9 min), Tv (0.0 to 999.9 min), etc.

Alarm

• Functions: Latching/momentary contact.
• Threshold Adjustment Range: Total measuring range for Cl₂/ClO₂/pH/ORP/temperature.
• Delay: 0 to 2000 s.
• Monitoring Times: 0 to 2000 min for lower/upper limit violations.

Power Supply

• Variants: 100/115/230 V AC +10/-15 %, 48 to 62 Hz; 24 V AC/DC +20/-15 %.
• Power Consumption: Max. 7.5 VA.
• Mains Protection: Fine-wire fuse, medium-slow blow 250 V/3.15 A.
• Fieldbus Supply Voltage: 9 V to 32 V (PROFIBUS PA/DP).

Performance Characteristics

Cl₂/ClO₂ Measurement

• Resolution: 0.01 mg/l (CCS120/140/240, 963); 0.001 mg/l (CCS141/241).
• Measurement Deviation (Display): Max. 0.5% of mv ±4 digits (CCS140/141/240/241); Max. 1% of mv ±4 digits (CCS120, 963).
• Repeatability: Max. 0.2% of measuring range.

Temperature Measurement

• Resolution: 0.1 °C.
• Deviation (Display): ±0.3 K.

pH and ORP Measurement

• Resolution: pH 0.01; 1 mV (ORP).
• Deviation (Display pH): ±0.03 pH.
• Deviation (Display ORP): ±3 mV.

Mechanical / Hydraulic

Dimensions

• Panel-mounted instrument: 96 x 96 x 145 mm (3.78 x 3.78 x 5.71 inches). Installation depth: approx. 165 mm (6.50").
• Field instrument: 247 x 170 x 115 mm (9.72 x 6.69 x 4.53 inches).

Weight

• Panel-mounted instrument: Max. 0.7 kg (1.5 lb).
• Field instrument: Max. 2.3 kg (5.1 lb).

Materials

• Housing (Panel-mounted): Polycarbonate.
• Housing (Field): ABS PC Fr.
• Front Membrane: Polyester, UV-resistant.

Ingress Protection

• Panel mounted instrument: IP 54 (front), IP 30 (housing).
• Field instrument: IP 65 / NEMA 4X.

Environment

• Ambient Temperature: -10 to +55 °C (14 to 131 °F).
• Storage Temperature: -25 to +65 °C (-13 to 149 °F).
• Relative Humidity: 10 to 95%, non-condensing.
• Pollution Degree: Suitable for pollution degree 2.
• Electromagnetic Compatibility: As per EN 61326-1:2006, EN 61326-2-3:2006.
• Electrical Safety: EN/IEC 61010-1:2001, Installation Category II.

Operability

• Operating Concept: Logical menu structure with access code protection.
• Display: LC display for measured values and configuration data.
• Controls: 4 main operating keys, changeover switch for relays, LEDs for status indication.

Certificates and Approvals

• Declaration of Conformity: Conforms to harmonized European standards (CE mark).
• CSA General Purpose: Approved for indoor use.

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Disclaimer: This extraction may miss figures, footnotes, or revisions. Contractual data must match the OEM PDF revision used on the project.

Official datasheet (PDF)

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