Liquiline System CA80TP

Summary

Product identification

The Liquiline System CA80TP is a wet-chemical analyzer designed for the almost continuous determination of total phosphorus (P) concentration in liquid media.

Applications include:

• Monitoring of wastewater treatment plant inlets
• Monitoring of industrial wastewater
• Control of industrial wastewater treatment

A "Cabinet, outdoor version" product variant is available for outdoor installation.

Measuring principle

The analyzer uses a colorimetric measuring principle. After sample preparation, the sample is digested at a higher temperature with a digestion reagent. Color reagents are then metered in, causing a characteristic color change in the sample. A photometer measures the light absorption at defined wavelengths. This absorption is proportional to the concentration of the parameter under analysis. A reference measurement is performed to compensate for interference. The Molybdenum blue method according to DIN EN ISO 6878 is used for photometric determination of orthophosphate following digestion.

Measuring system

A complete measuring system comprises:

• Liquiline System CA80TP analyzer
• Reagents, cleaner, and standard solution (ordered separately)
• Suction strainer or optional Y strainer with process connection

Operating limits

Ambient temperature range:

• All housing versions (except outdoor): +5 to +40 °C (41 to 104 °F)
• Outdoor version: -20 to +40 °C (-4 to 104 °F) Storage temperature: –20 to 60 °C (–4 to 140 °F) Relative humidity: 10 to 95 %, non-condensing Degree of protection: IP55 (cabinet, analyzer stand), TYPE 3R (cabinet, analyzer stand)

Feed water

Sample temperature: 4 to 40 °C (39 to 104 °F) Consistency of the sample: Low solids content, particle size < 800 µm. An optional Y strainer or other pretreatment is required for larger particle sizes. Sample supply:

• Analyzer (without Y strainer): Unpressurized
• Y strainer (optional): Permitted pressure range max. 4 bar (58.01 psi). Sufficient flow is required for the Y strainer to be completely filled.

Product water

Not specified in the extract.

Electrical

Supply voltage:

• 100 to 120 V AC / 200 to 240 V AC
• 50 or 60 Hz

Power consumption:

• All versions except "Outdoor": 250 VA
• "Outdoor" version: 250 VA + 650 VA per hose heater, max. 900 VA (version with cooling)

Output signals (depending on version):

• 2 x 0/4 to 20 mA, active, potentially isolated (standard)
• 4 x 0/4 to 20 mA, active, potentially isolated (with 2 additional analog outputs)
• 6 x 0/4 to 20 mA, active, potentially isolated (with 4 additional analog outputs)
• Binary outputs

Digital communication:

• PROFIBUS DP (Profile 3.02)
• Modbus TCP or RS485
• PROFINET
• EtherNet/IP
• Configuration via Ethernet

Current outputs:

• Load: Max. 500 Ω
• Output voltage: Max. 24 V

Relay outputs:

• 1 single-pin changeover contact (alarm relay)
• 2 or 4 single-pin changeover contacts (optional with extension modules)
• Maximum load (alarm relay): 0.5 A
• Maximum load (other relays): 2.0 A

Mechanical / hydraulic

Dimensions:

• Closed version: 530 (20.87) x 463 (18.23) x 793 (31.22) mm (H x W x D)
• Open version: 530 (20.87) x 417 (16.42) x 793 (31.22) mm (H x W x D)
• With base: 1723 (67.83) x 654 (25.74) x 930 (36.61) mm (H x W x D)

Weight:

• Cabinet version with cooling module: 42 kg (92.6 lbs)
• Cabinet version without cooling module: 39.5 kg (87.1 lbs)
• Open installation with cooling module: 34 kg (74.96 lbs)
• Open installation without cooling module: 31.5 kg (69.45 lbs)
• Analyzer stand with cooling module: 75 kg (165.3 lbs)
• Analyzer stand without cooling module: 72.5 kg (159.8 lbs)

Materials (parts in contact with medium):

• Dispenser body: PP
• Piston seal: TPE
• Valve manifold: ETFE
• Valve seals: FKM
• Optical tube: Borosilicate glass
• Hoses: PTFE, PharMed
• Reactor: PVDF, Borosilicate glass
• Reactor valves: FFKM
• Dilution vessel (optional): PE
• Y strainer: PVC-U

Process connection:

• Sample inlet: Hose gland for rigid hoses with OD 3.2 mm
• Dilution water: Hose gland for rigid hoses with OD 3.2 mm
• Outlet: Hose gland for rigid hoses with OD 6 mm
• 4 x bores for M32 for sample inflow and outflow

Cross-sensitivity

No cross-sensitivities were observed up to the following concentration levels:

• 10 000 mg/l (ppm) SO₄²⁻
• 1000 mg/l (ppm) Cl⁻
• 500 mg/l (ppm) Na⁺, K⁺, Ca²⁺
• 50 mg/l (ppm) CO₃²⁻
• 50 mg/l (ppm) NO₃⁻

Reducing agents can cause lower concentration levels.

Performance characteristics

Measured error:

• CA80TP-AAF0: 0.06 mg/l (ppm) P (0.05 to 2 mg/l P)
• CA80TP-AAF1: 0.06 mg/l (ppm) P (0.05 to 2 mg/l P); 3% of reading (2 to 10 mg/l P)
• CA80TP-AAF4: 0.4 mg/l (ppm) P (0.5 to 10 mg/l P); 4% of reading (10 to 50 mg/l P)

LOD (limit of detection): 0.015 mg/l (ppm)

Repeatability:

• CA80TP-AAF0: ± 2 % of the measured value + 0.01 mg/l (ppm) P
• CA80TP-AAF1: ± 2 % of the measured value + 0.01 mg/l (ppm) P
• CA80TP-AAF4: ± 3 % of the measured value + 0.05 mg/l (ppm) P

Measuring interval: Continuous (approx. 30 min with 1 min digestion time, adjustable 33 min to 24 h) Sample requirement: 6 ml (0.21 fl oz)/measurement

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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)

Lenntech datasheet mirror