Liquisys M COM223F-253F

Summary

Product identification

The Liquisys M COM223F and COM253F are transmitters for oxygen sensors, designed for dissolved oxygen measurement. They are suitable for applications in process control in enzyme production, control of culture preparation, and biotechnological production.

Operating limits

Ambient temperature

• -10 to +55 °C (14 to 131 °F)

Storage temperature

• –25 to +65 °C (-13 to +149 °F)

Altitude

• 0 to 4000 m (0 to 13124 ft)

Pressure

• 500 to 1100 hPa

Salinity

• 0 to 4 %

Relative humidity

• 10 to 95%, non-condensing

Pollution degree

• Suitable for pollution degree 2

Feed water

Input measured variables

• Oxygen: COS21 sensor, 0.01 to 20 mg/l or 0 to 200 % SAT
• Temperature: COS21 sensor, -10 to 60 °C (14 to 140 °F)
• Current Input: 4 to 20 mA, Load: 260  at 20 mA

Oxygen sensor signal input

• Signal current: 0 to 650 nA
• Voltage: 10 to 50 V
• Power consumption: max. 10 mA

Product water

Output signal

• 0/4 to 20 mA, galvanically separated, active
• Signal on alarm: 2.4 or 22 mA in case of an error
• Load: maximum 500 
• Resolution: max. 700 digits/mA
• Isolation voltage: max. 350 Veff/500 V DC
• Overvoltage protection: according to EN 61000-4-5

Second current output

• Configurable for temperature, main measured value, or actuating variable.

Auxiliary voltage output

• Output voltage: 15 V ± 0.6 V
• Output current: max. 10 mA

Contact outputs (Limit contactor)

• Switching current with ohmic load (cos = 1): max. 2 A
• Switching current with inductive load (cos  = 0.4): max. 2 A
• Switching voltage: max. 250 V AC, 30 V DC
• Switching power with ohmic load (cos  = 1): max. 500 VA AC, 60 W DC
• Switching power with inductive load (cos  = 0.4): max. 500 VA AC, 60 W DC
• Pickup/dropout delay: 0 to 2000 s

Controller output

• Function: pulse length/pulse frequency controller
• Controller response: PID
• Control gain Kp: 0.01 to 20.00
• Integral action time Tn: 0.0 to 999.9 min
• Derivative action time Tv: 0.0 to 999.9 min
• Period for pulse length controller: 0.5 to 999.9 s
• Frequency for pulse frequency controller: 60 to 180 min⁻¹
• Basic load: 0 to 40% of max. set value

Alarm output

• Function: latching/momentary contact
• Alarm threshold adjustment range: O₂ / temperature: entire measuring range, depending on sensor type
• Alarm delay: 0 to 2000 s (min)
• Monitoring time lower limit violation: 0 to 2000 min
• Monitoring time upper limit violation: 0 to 2000 min

Electrical

Power supply

• Versions: 100/115/230 V AC +10/-15 %, 48 to 62 Hz or 24 V AC/DC +20/-15 %
• Supply via fieldbus: 9 V to 32 V (max. 35 V) for PROFIBUS PA/DP

Power consumption

• max. 7.5 VA

Mains protection

• Fine-wire fuse, medium-slow blow 250 V/3.15 A

HART Communication

• Signal coding: Frequency Shift Keying (FSK) + 0.5 mA via current output signal
• Data transfer rate: 1200 Baud
• Galvanic isolation: yes
• Load: 250 

PROFIBUS PA

• Signal coding: Manchester Bus Powered (MBP)
• Data transfer rate: 31.25 kBit/s, voltage mode
• Galvanic isolation: yes (IO-Module)

PROFIBUS DP

• Signal coding: RS485
• Data transfer rate: 9.6 kBd, 19.2 kBd, 93.75 kBd, 187.5 kBd, 500 kBd, 1.5 MBd
• Galvanic isolation: yes (IO-Module)

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)

Material

• Housing of panel mounted instrument: Polycarbonate
• Field housing: ABS PC Fr
• Front membrane: Polyester, UV-resistant

Terminals

• Cross section: max. 2.5 mm²

Ingress protection

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

Performance characteristics

Resolution

• Oxygen: ±0.05 mg/l, ±0.5 % SAT
• Temperature: ±0.1 °C

Maximum measured error

• Oxygen: ±0.03 mg/l, ±0.3 % SAT
• Temperature: max. 1.0 % in the range of -10 to +60 °C (+14 to 140 °F)

Repeatability

• Oxygen: ≤ 0.2 to ≤ 20 mg/l
• Oxygen saturation index: ≤ 2 to ≤ 200 % SAT
• Temperature: ≤ 10 to ≤ 140 K

Temperature compensation range

• 0 to 50 °C (32 to 122 °F)

Slope adjustment range (COS21)

• 75 to 140 % (nominal 60 nA, in air, 20 °C (68 °F), 1013 hPa)

Installation

Field instrument mounting

• Suitable for mounting on pipes (Ø max. 60 mm / 2.36") or walls.

Panel mounted instrument mounting

• Requires a cut-out of 92 x 92 mm (3.62 x 3.62 inches).
• Installation depth: approx. 165 mm (6.50").

Environment

Electromagnetic compatibility

• Interference emission and interference immunity as per EN 61326-1:2006, EN 61326-2-3:2006

Electrical safety

• According EN/IEC 61010-1:2001, Installation Category II, for use up to 2000 m above sea level.

CSA

• Apparatus with CSA General Purpose Approval are certified for indoor use.

Accessories

Sensors

• Oxymax COS22D: Sterilizable sensor for dissolved oxygen.

Connection accessories

• Measuring cable COK21: Available in 3 m (9.8 ft) and 10 m (33 ft) lengths.
• CYK71 measuring cable: Sold by the meter for sensor connection or extension.
• Junction box VBM: For cable extension with 10 terminals, IP 65 / NEMA 4X.

Mounting accessories

• Weather protection cover CYY101: For outdoor installation of the field housing.
• Pipe mounting kit: For mounting the field housing on horizontal or vertical pipes (Ø max. 60 mm / 2.36").
• Universal upright post CYY102: For mounting the field housing.

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

Official datasheet (PDF)

Lenntech datasheet mirror