OZONE ANALYZER BMT 964 Manual, Rev. 04/2021
5
1 General Description
The OZONE ANALYZER BMT 964 is a microprocessor-based dual beam photometer
(UV 254 nm) for measuring the ozone content in air or oxygen.
To evaluate the ozone content in the sample gas the OZONE ANALYZER BMT 964 measures
the UV radiation in the measurement channel, the UV radiation in the reference channel, the
temperature and the pressure in the cuvette.
The ozone concentration is displayed in either percent weight of ozone (%wt/wt), grams of
ozone per normal cubic meter of sample gas (g/Nm
3
) or ppm
v
(AQ: g/m
3
or ppm) on a 16-
character alphanumeric display. The concentration unit can be changed during operation. Addi-
tional modifiable parameters are among others :
Unit of pressure display (selectable: bar, psi, Torr, MPa)
Alarm parameters (high/low threshold, alarm latching, audible, opening or closing relays)
Nature of the carrier gas: air or oxygen (incl. PSA)
Date and time
RS-232 interface parameters
These parameters can be set with the three pushbuttons on the front panel as well as by connect-
ing the serial interface to a Windows-PC running the program BMT 964 Link, which is supplied
with each instrument. Another way of configuring the instrument is to use the so-called Link
Mode via the serial interface.
The instrument has a built-in clock with calendar, which is used to provide time stamps for an
Event-Log (48 entries, e.g. zeroing, alarms) and an Error-Log (16 entries, e.g. Overrange, Cuvette
Dirty). These logs can be read out and printed via the serial interface with the mentioned pro-
gram BMT 964 Link.
2 Cautions & Warnings
The exclamation point within an equilateral triangle is intended to alert the
user to the presence of important operating and maintenance (servicing) in-
structions in the literature accompanying the instrument.
The lightning flash with arrowhead symbol, within an equilateral triangle is
intended to alert the user to the presence of uninsulated “dangerous voltage”
within the product’s enclosure that may be of sufficient magnitude to consti-
tute a risk of electric shock to persons.
The “Caution, hot surface” symbol indicates that the marked item may be
hot and should not be touched.
Warning: Ozone is a highly toxic gas. The ozone concentrations measured by the OZONE
ANALYZER BMT 964 are above the lethal limit. Appropriate safety devices (ozone detectors)
should be used.
To Next Page
Loading...
