Ozone-in-water Sensor BMT 964 AQ-LC

Summary

Product identification

• Product Name: OZONE-IN-CLEAN-WATER SENSOR BMT 964 AQ-LC
• Product Line: BMT Ozone Measurement
• Sensor Type: Low Concentration Ozone Sensor for Clear and Clean Water

Features

• Dual beam UV photometer
• Stainless steel cuvette
• Long-life mercury lamp
• Warranty: 3 years (instrument), 5 years (UV lamp)
• High accuracy, error less than 0.5%
• Selectable concentration ranges from 0.5 to 15 g/m³ (ppmw)
• Simple cleaning of cuvette windows
• Relay contact for control of automatic zeroing
• Failure warnings: lamp low, cuvette dirty, overrange, summary error
• Key functions programmable via Windows PC
• High and low limit alarms
• Timing sequence for automatic zeroing
• Isolated signal outputs: 4-20mA and 0-10V
• Isolated RS-232 interface (bidirectional)
• Optional Remote Display (BMT 964 RD) available

Applications

• Monitoring of ozone in clear and clean water systems, or water with constant turbidity.
• Pharmaceutical
• Biotechnology
• Food, baby food
• Beverages

Specifications

Measurement Principle

• Dual-beam UV photometer (254 nm)

MTBF

• Instrument including UV lamp: > 65,000 hours
• Instrument excluding UV lamp: > 120,000 hours

UV Lamp

• Low pressure mercury lamp, long-life design, burnt-in for 300 hours

Concentration Ranges

• Selectable: 0.5, 0.75, 2, 5, 10 and 15 g/m³ (ppmw)
• Selectable units: g/m³ and ppmw

Accuracy

• After zeroing, max. error is the sum of 0.4% of measurement + 0.1% of scale.

Repeatability Error

• 0.2% of measurement

Response Time

• 0.03 s (analog output)
• 0.3 s (remote display)

Zero Drift

• Typically 0.2% of range per day, after warm-up, non-cumulative.

Operating Limits

• Max. Inlet Pressure: 10 bar
• Ambient Temperature: 0 - 50°C (non-condensing)

Materials in Contact with Ozonated Water

• Stainless steel (SS), PVDF, PFA, quartz, FFPM

Hydraulic

• Fluid Ports: PVDF compression fittings for 4 x 6 mm (5/32'' x 1/4'') PTFE tubing or 1/4" SS Swagelok.
• Recommended Flow Rate: 0.05 to 0.1 l/min (typical)
• Pressure Drop: Approx. 10 mbar at 0.1 l/min (without valve)

Signal Outputs

• Concentration: 4 - 20 mA (isolated, active)
• Concentration: 0 - 10 V (isolated)
• Concentration Alarms: High Alarm, Low Alarm (latching, not latching)

Control Input

• Set to zero (24 V, 18 mA, isolated)

Control Outputs (Relay Contacts, 28 V, 0.5 A, isolated)

• Lamp Low
• Cuvette Dirty
• High Alarm
• Low Alarm
• Purge Control

Error Handling

• Error Relay: 30 V, 1 A, summarizing instrument failures.
• Warnings and Errors: Lamp Low Warning/Error, Lamp Off Error, Cuvette Dirty Warning/Error, Overrange, Overpressure.

Serial Interface

• RS-232, bidirectional, isolated
• Baud Rates: 2400 - 38400

Automatic Zeroing

• Possible via the purge contact.

Software

• Name: BMT 964 Link
• Function: Instrument configuration and readout of Event and Error Logs on a Windows PC.

Electrical

• Power Input: Wide range 100 - 240 VAC, 15 VA
• Optional DC Power: 12 - 36 VDC, 15 W

Mechanical

• Dimensions (W x H x D): 360 x 160 x 91 mm
• Weight: Approx. 4 kg
• Enclosure: Splash proof aluminium (IP 65, NEMA 4X) with sea water resistant coating (RAL 5009, azure).
• Mounting: Four mounting brackets provided.
• Connectors: All electric connectors are waterproof.

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

Official datasheet (PDF)

Lenntech datasheet mirror