OZONE ANALYZER BMT 965 Manual, Rev. 01/2024
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9
Warning: This product relies on the building's installation for short-circuit (overcurrent) protec-
tion. Ensure that a fuse or circuit breaker no larger than 15 A at 120 VAC (10 A at 240 VAC) is
used on the phase conductor.
The power receptacle or the mains socket-outlet the instrument is connected to should be easily
accessible for fast interruption of power, or other easily accessible means for switching off power
should be provided. This disconnect has to be clearly marked for identification of the instrument.
Optionally the instrument is available in a low voltage version with a voltage range from
12 to 36 VDC (max. power consumption is 15 W).
Mains connector: left
Protective Ground
middle mains 'L'
} (100 bis 240 VAC, 50/60 Hz, 15 VA)
right mains 'N'
Alternatively:
DC power connector: left
Protective Ground
middle negative
} (12-36 VDC)
right positive
The backplane is shown here:
As seen in the backplane the socket for the signal connector has a lower (terminals 1-7) and an
upper part (terminals 8-14). Inserting the yellow PCB connector plug belonging to the upper sec-
tion into the lower one can cause damage to the instrument and must therefore be avoided.
In order to prevent an accidental insertion into the wrong socket, a modification on the terminal
no. 5 of both the lower socket and the corresponding plug was made. On terminal no. 5 the socket
received a red coding profile whereas the plug was modified by removing the upper fin.
For the sample gas connection 3x5 mm FEP tubing (or 1/8" x 3/16") should be used (which we
will supply on request). The sample gas has to be connected via the sample gas filter ("IN"). The
time lag of the concentration measurement depends on
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