BMT 965 - Specifications (BMT 965 BT Only)

OZONE ANALYZER BMT 965 Manual, Rev. 01/2024
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46
M965_001_EN_2023
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11
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01
must not exceed 100 mbar to the ambient. Otherwise, the built-in air pump will not bring the ozone
out of the cuvette and false zero readings will be the result.
If the Auto Zero Interval is set to more than zero hours (1 to 99 h), the zeroing is activated by the
purge timer, fully automatically. This includes switching to zero gas, zeroing and switching back to
the sample gas.
Note: Setting the Auto Zero Interval to zero hours means, that the analyser does not go through
the automatic purge cycle and does not activate the Purge Control contact! In this case, the user
must take care to never initiate zeroing with ozone in the cuvette.
The BMT 965 BT may be ordered together with a soft carrying bag for protecting the instrument
during transport. The bag has room enough for accessories like filter inserts for the sample gas
filter, a tool to open the filter holder and FEP connecting tubing.
For further description of the functions and properties of the bench top version please refer to the
main part of the manual.
Specifications (BMT 965 BT only)
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, %wt(air) & ppm
v
max. inlet pressure 2.5 bar g
max. outlet pressure 1.15 bar abs
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. 6 mbar at 0.5 l/min, throttle valve fully open
control outputs relay contacts (28 V, 0.5 A, isolated):
Lamp Low
Cuvette Dirty
High Alarm
Low Alarm
Purge Control (not available 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
serial interface RS-232, bidirectional, 2400 - 38400 Baud,
isolated (RS-232 GND connected to analog GND)
interface (opt.) MODBUS/TCP
fully automatic zeroing with optional internal purge unit (IPU)
power 12-36 VDC, 15 W
wall mount power supply 100-240 VAC, 50/60 Hz, included
dimensions (W x H x D) 193 x 82 x 253 mm, DIN 61554 (ranges 2 and 5g/Nm
3
: 193x152x253)
weight 2.2 kg
General specifications not specific to the BMT 965 BT are found on page 39.