OZONE ANALYZER BMT 964 Manual, Rev. 04/2021
32
15 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 %wt/wt &
ppm
v
optional ranges
2, 5, 10, 20 g/Nm
3
, selectable units %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 0.03 s (analog output), 0.3 s (display)
zero drift typ. 0.2 % of range per day, after warm-up, non-cumulative
proof pressure 1 bar above pressure range
ambient temperature 0 - 50°C (non-condensing)
materials in contact
with ozone
quartz (cuvette windows), Al
2
O
3
(cuvette), FFPM (window seals),
PTFE (tubing), stainless steel (fittings, cuvette spacer)
gas ports for PTFE
tubing 3 x 5 mm (1/8" x 3/16"), opt. 1/8" or 1/4" Swagelok,
or 4 x 6 mm PTFE. Built-in sample gas filter is standard
recommended flow rate
0.1 to 1 l/min typical
pressure drop approx. 3 mbar at 0.5 l/min (with sample gas filter)
temperature compens. is standard
pressure compensation for ozone measurement at an arbitrary systemic pressure,
with built-in cuvette pressure transducer,
abs. pressure ranges 1.15 (optional up to 4.0 bara in steps of 0.5)
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 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, Lamp Low Error, Lamp Off
Error, Cuvette Dirty Warning, Cuvette Dirty Error, Overrange, Over-
pressure
serial interface RS-232, bidirectional, 2400 - 38400 Baud,
isolated (RS-232 GND connected to analog GND)
automatic zeroing with opt. external or internal purge pump and solenoid valve
(e.g. BMT Purge Unit)
software BMT 964 Link, instrument configuration and readout of Event- and
Error 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 43 700 (ranges 2 and 5g/Nm
3
: 144x144x230)
panel cut-out (W x H) 139 x 67 mm
weight 1.5 kg
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