BMT 965 - Specifications

OZONE ANALYZER BMT 965 Manual, Rev. 01/2024
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M965_001_EN_2023
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16 Specifications
measurement principle dual-beam UV photometer (254 nm), no moving parts
MTBF instrument incl. UV lamp 65,000 h, excl. UV lamp 120,000 h
UV lamp low pressure mercury lamp, long life design, burnt-in for 300 h
display 16-character alphanumeric backlit LCD
concentration ranges
50, 100, 200, 300, 400, 500, 600 g/Nm
3
, selectable units g/Nm
3
,
%wt/wt, %wt(air) & ppm
v
optional ranges
2, 5, 10, 20 g/Nm
3
, selectable units g/Nm
3
, %wt/wt and ppm
v
accuracy after zeroing the max. error is the sum:
0.4 % of measurement + 0.1 % of scale
repeatability error 0.2 % of measurement
response time 0.1 s (analog output), 0.3 s (display)
zero drift typ. 0.2 % of range per day, after warm-up, non-cumulative
ambient temperature 0 - 50°C (non-condensing)
materials in contact
with ozone
quartz (cuvette windows), SS (cuvette, fittings, cuvette spacer),
FFPM (window seals), FEP (tubing)
gas ports for FEP tubing 3x5 mm (1/8" x 3/16"), opt. 1/8" Swagelok, or 4x6 mm.
Built-in sample gas filter is standard
recommended flow rate 0.1 to 1 l/min typical
pressure drop approx. 5 mbar at 0.5 l/min (with sample gas filter)
temperature compens. is standard
pressure compensation with built-in cuvette pressure transducer, for ozone measurement
at an arbitrary systemic pressure, abs. pressure range 1.15 (optional
1.5 to 4.0 bar abs in steps of 0.5), minimum pressure 0.4 bar abs
pressure units selectable: bar, psi, Torr, MPa
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 VDC, 8 mA, isolated)
control outputs relay contacts (28 V, 0.5 A, isolated):
Lamp Low
Cuvette Dirty
High Alarm
Low Alarm
Purge Control (not available together with internal Purge Unit)
error handling Error Relay: 30 V, 0.5 A, summarizing instrument failures.
Errors: Lamp Low Error, Lamp Off Error, Lamp High Error, Cuvette
Dirty Error, Overrange, Overpressure, Low Pressure, EEPROM Error,
early warnings Lamp Low Warning, Cuvette Dirty Warning, SD Card Warning
memory 8 GB for error and concentration logs
USB interface USB 2.0 OTG, Full Speed, device: mass storage and HID, host: mass
storage
serial interface RS-232, bidirectional, 2400 - 38400 Baud,
isolated (RS-232 GND connected to analog GND)
interface (opt.) MODBUS/TCP
automatic zeroing with optional internal purge unit (IPU)
or external pump and solenoid valve (not included)
software BMT 965 Link, instrument configuration and readout of Event, Error
and Concentration Logs on a Windows PC
power wide range input: 100 - 240 VAC, 50/60 Hz, 15 VA
optional: 12 – 36 VDC, 15 W
dimensions (W x H x D) 144 x 72 x 230 mm, DIN 61554 (ranges 2 and 5g/Nm
3
: 144x144x230)
panel cut-out (W x H) 139 x 67 mm
weight 1.5 kg