Ozone Analyzer BMT 964 BT

Summary

Product identification

OZONE ANALYZER BMT 964 BT - Bench Top Version of High Concentration Ozone Gas Analyzer. This is a portable version of the standard BMT 964.

Features

• Dual beam UV photometer (254 nm)
• Long-life mercury UV lamp, burnt-in for 300 h
• 3 years warranty, 5 years on the UV lamp
• High accuracy, error less than 0.5%
• Pressure and temperature compensated
• Ranges selectable: 2 to 600 g/Nm³
• Units selectable: g/Nm³, %wt/wt, or ppmv
• Built-in sample gas filter
• Built-in purge unit (optional)
• Relay contact for control of automatic zeroing
• Failure warnings: lamp low, cuvette dirty, overrange, summary error
• Key functions programmable via front panel or Windows PC
• High and low limit alarms
• Timing sequence for automatic zeroing
• Pressure readout units: bar, psi, Torr or MPa
• Analog outputs: 4-20mA and 0-10V isolated
• RS-232 interface (bidirectional, isolated)
• 16 character alphanumeric backlit LCD display

Applications

• Ozone measurement on the bench, in the laboratory, or in the field
• Experiments with ozone
• Waste water treatment
• Industrial ozone processes

Specifications

Measurement Principle

• Dual-beam UV photometer (254 nm)

MTBF

• Instrument including UV lamp: 65,000 h
• Instrument excluding UV lamp: 120,000 h

UV Lamp

• Low pressure mercury lamp, long life design

Concentration Ranges

• Standard: 50, 100, 200, 300, 400, 500, 600 g/Nm³
• Optional: 2, 5, 10, 20 g/Nm³
• Selectable units: g/Nm³, %wt/wt, and ppmv

Accuracy

• Max. error after zeroing: 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 (display)

Zero Drift

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

Pressure

• Max. inlet pressure: 2.5 bar g
• Max. outlet pressure: 1.15 bar abs
• Pressure compensation with built-in cuvette pressure transducer
• Selectable units: bar, psi, Torr, MPa

Temperature

• Ambient temperature: 0 - 50°C (non-condensing)
• Temperature compensation is standard

Materials in Contact with Ozone

• Quartz (cuvette windows)
• Al₂O₃ (cuvette)
• FFPM (window seals)
• PTFE (tubing)
• Stainless steel (fittings, cuvette spacer)

Gas Ports

• For PTFE tubing 3x5 mm (1/8" x 3/16"), optionally 4x6 mm PTFE

Flow Rate

• Recommended flow rate: 0.1 to 1 l/min typical

Signal Outputs

• Concentration: 4 - 20 mA (isolated, active)
• Concentration: 0 - 10 V (isolated)

Control Input

• Set to zero (24 V, 18 mA, isolated)

Control Outputs (Relays)

• Rating: 28 V, 0.5 A max, isolated
• Functions: Lamp Low, Cuvette Dirty, High Alarm, Low Alarm, Purge Control

Error Handling

• Error Relay: 30 V, 1 A max, isolated
• Summarizes instrument failures
• Warnings and Errors: Lamp Low Warning, Lamp Low Error, Lamp Off Error, Cuvette Dirty Warning, Cuvette Dirty Error, Overrange, Overpressure

Serial Interface

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

Automatic Zeroing

• With optional external or internal purge pump and solenoid valve (e.g., BMT Purge Unit)

Software

• BMT 964 Link for instrument configuration and readout of Event and Error Logs on a Windows PC

Power Supply

• Wide range input: 100 - 240 VAC, 15 VA
• Via wall mount power supply: 24 VDC

Mechanical

• Dimensions (W x H x D): 144 x 72 x 230 mm (DIN 43 700 enclosure)
• Total depth approximately 250 mm with rear connections
• Weight: 2.1 kg

Relay Contacts

• Common (Terminal 8)
• Lamp Low (Terminal 9)
• Cuvette Dirty (Terminal 10)
• Low Alarm (Terminal 11)
• High Alarm (Terminal 12)
• Purge (Terminal 13)

Analog Outputs

• Concentration 0-10V (Terminal 5)
• GND (10 V) (Terminal 4)
• Concentration 4-20 mA (Terminal 7)
• GND (4-20 mA) (Terminal 6)

Error Relay

• Common (Terminal 1)
• Normally Closed (Terminal 2)

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