Testomat 2000 CLT

Summary

Product Identification

• Product Name: Testomat 2000® CLT self clean
• Type: Process Photometer for total chlorine

Operating Limits

• Total Chlorine Measurement Range: 0 – 2.5 ppm (or mg/l)
• Operating Pressure: 0.3 to 8 bar (factory setting), adjustable to 0.3 to 1 bar by removing flow controller valve body.
• Water Temperature: 10 °C to 40 °C. For temperatures above 40 °C, a KCN type cooler should be installed.

Feed Water

• Must be clear, colorless, and free of undissolved particles.
• Maximum recommended CO₂ content: 20 mg/l.

Product Water

• The instrument monitors total chlorine concentration.
• Applications include monitoring disinfectant dosing in the drinking water field.

Electrical

• Mains Voltage Input: 24 V / 115 V / 230 V AC.
• Power Consumption: Not specified.
• Relay Outputs: Max. 240 VAC, 4 A.

Mechanical / Hydraulic

• Water Inlet Connection: Standard plug connector for plastic hoses 6/4 x 1 (external diameter 6 mm / internal diameter 4 mm).
• Water Outlet Hose Diameter: Internal diameter 12 mm.
• Reagent Bottle Storage: 500 ml.

Performance Specifications

• Measurement Principle: Wet-chemical online monitor using the photometric analysis principle, based on the DPD method (EN ISO 7393-2).
• Analysis Process: Involves adding three reagents, with a reaction time of approximately 1 minute (excluding flush time).
• Cleaning Function: Measuring chamber is cleaned after a pre-set number of analyses.
• Key Features:
  • Menu-driven operation with plain text display.
  • Freely selectable units (ppm or mg/l).
  • Precise piston-dosing pump.
  • Analysis initiation options: Automatic interval, external control, volume controlled (water meter).
  • Two independent limit values with hysteresis.
  • Monitoring of two measuring points (via external solenoid valves).
  • Internal error documentation.
  • Programmable service address and maintenance interval.
  • Optional interfaces: 0/4-20 mA or 0/2-10 V, or RS 232 for a log printer.

Safety Information

• Read operating instructions carefully and completely before working with the instrument.
• Adhere to hazard warnings and safety information for reagents and chemicals, consulting safety data sheets.
• Disconnect power before installation and connection/disconnection.
• Only connect to the specified mains voltage.
• Protect the instrument from moisture, condensation, and splash water.
• Do not perform modifications not described in the instructions.
• Maximum electrical load capacity of relay outputs must not be exceeded.
• Immediately switch off and contact service staff if malfunctioning occurs. Unauthorized tampering voids warranty.
• Use only a dry, lint-free cloth for cleaning.
• Dispose of the instrument in accordance with national regulations.
• Assembly and commissioning require electrical and process engineering knowledge and should be performed by specialists.

Installation

• Install in a location protected against dripping/splash water, dust, and aggressive substances (e.g., switch cabinet or wall).
• Install vertically, without mechanical stress, and at a vibration-free site.
• Water inlet hose should be as short as possible (max. 5 m).
• Ensure sufficient space on the left side for the door to open.
• Water pressure must be between 0.3 bar and 8 bar, avoiding strong fluctuations.
• Water inlet connection should be laid vertically upwards to prevent dirt ingress.
• Install a manually operated shut-off valve in the branch to the instrument.
• Use an opaque plastic hose (6/4 x 1) for the water inlet.
• Water outlet hose (internal diameter 12 mm) should be laid without backwater or siphoning effect.
• Connecting cables should be short and installed separately from power cables.
• Connect the instrument to the protective earth conductor (for 230/115 VAC).
• Protect against interference voltages using a mains filter if necessary.

Commissioning

• Use only Heyl Testomat 2000® reagents for guaranteed trouble-free operation.
• Ensure reagent bottles are correctly assembled with the intake hose.
• Fill the intake and transport hoses with reagent from the pump up to the measuring chamber.
• Slowly open the manual shut-off valve for the water inlet to prevent overflowing; allow 2-6 seconds to fill the measuring chamber.

Instrument Settings and Data Input

• Date/Time/Weekday: Configurable via the programming menu.
• Password Protection: A four-digit password (current time in reverse order) is required for basic program settings.
• Operating Mode: Options include Time Controlled, Volume Interval (via water meter), Dynamic Analysis Start, and External Analysis Start.
• Analysis Interval (Time Control): Determined by interval pause (0-99 minutes), flush times, and analysis duration.
• Volume Control: Analysis triggered after a programmed water quantity is measured (1-9999 litres).
• Water Meter Type: Configurable constant (e.g., 100 litres/impulse).
• Displayed Unit: Programmable as mg/l or ppm.
• Parameter Selection: Can measure Free Chlorine or Total Chlorine. For total chlorine, reagents A, B, and C are used. For free chlorine, reagent C is disconnected.
• Flushing Times:
  • Internal Flushing: Recommended > 60 seconds if the plant is idle or intervals are long. Minimum 10 seconds for connections > 3 m with 6 mm internal hose diameter.
  • External Flushing: Recommended for short analysis intervals or long/large diameter supply lines.
• Interval Pause: 0 to 99 minutes between analyses when using timer triggering.
• Limit Value Monitoring: Two limit values (LV1, LV2) can be programmed. Outputs react based on programmed switch functions.
• Hysteresis: Suppression of the first, second, or third "bad" analysis result (setting 1, 2, or 3) to improve evaluation reliability.

Maintenance

• Refer to the "Maintenance" section and the "Maintenance manual of Testomat 2000®/Testomat ECO®".
• Regular visual inspection is recommended, checking reagent expiry, hose connections, air in hoses, water connections, instrument cleanliness, and measuring chamber/drain.

Technical Data

• See the official PDF for exact tabulated values.

Disclaimer

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