Ozone Analyzer BMT 964

Summary

Product Identification

• Product Name: OZONE ANALYZER BMT 964
• Manufacturer: BMT MESSTECHNIK GMBH
• Measurement Principle: Dual beam UV photometer (254 nm), no moving parts

Applications

• Monitoring of ozone generator output
• Monitoring of residual ozone after a process
• Potable water treatment
• Waste water treatment
• Industrial ozone processes
• Semiconductor ozone processes

Operating Limits

• Ambient Temperature: 0 - 50°C (non-condensing)
• Proof Pressure: 1 bar above pressure range

Feed Water / Gas

• Recommended flow rate: 0.1 to 1 l/min typical
• Pressure drop: approx. 3 mbar at 0.5 l/min (with sample gas filter)
• Carrier gas: Programmable as air or oxygen (PSA oxygen)

Product Water / Gas

• 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, ppmv

Performance

• Accuracy: After zeroing, the maximum 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 (display)
• Zero drift: typ. 0.2% of range per day, after warm-up, non-cumulative
• MTBF:
  • Instrument incl. UV lamp: 65,000 h
  • Instrument excl. UV lamp: 120,000 h
• UV Lamp: Low pressure mercury lamp, long-life design, burnt-in for 300 h
• Warranty: 3 years, 5 years on the UV lamp

Mechanical / Hydraulic

• Dimensions (WxHxD): 144 x 72 x 230 mm (DIN 43 700)
• Panel cut-out (W x H): 139 x 67 mm
• Weight: 1.5 kg
• Gas ports: For PTFE tubing 3x5 mm (1/8" x 3/16"), optional 1/8" Swagelok, or 4x6 mm PTFE
• Materials in contact with ozone: Quartz (cuvette windows), Al₂O₃ (cuvette), FFPM (window seals), PTFE (tubing), stainless steel (fittings, cuvette spacer)
• Pressure Compensation: With built-in cuvette pressure transducer
  • Absolute pressure range: 1.15 bar (optional 1.5 to 4.0 bar in steps of 0.5 bar)
  • Minimum pressure: 0.4 bar abs
  • Units selectable: bar, psi, Torr, Mpa
• Built-in sample gas filter: Standard
• Built-in purge unit: Optional (solenoid valve plus air pump) for automatic zeroing

Electrical

• Power Supply:
  • 100 - 240 VAC, 15 VA
  • Optional: 12 - 36 VDC, 15 W
• 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 (Relay Contacts): 28 V, 0.5 A, isolated
  • Lamp Low
  • Cuvette Dirty
  • High Alarm
  • Low Alarm
  • Purge Control
• Error Relay: 30 V, 1 A, summarizing instrument failures
• Serial Interface: RS-232, bidirectional, isolated, 2400 - 38400 Baud

Display and Control

• Display: 16 character alphanumeric backlit LCD
• Units Displayable: g/Nm³, %wt/wt, ppmv
• Alarms: High and low limit alarms, latching or non-latching
• Control: Key functions programmable via front panel or Windows PC
• Software: BMT 964 Link for instrument configuration and readout of Event and Error Logs

Error Handling

• Failure Warnings/Errors include: Lamp low, cuvette dirty, overrange, summary error.
• Specific errors include: Lamp Low Warning, Lamp Low Error, Lamp Off Error, Cuvette Dirty Warning, Cuvette Dirty Error, Overrange, Overpressure.

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