Teledyne BDS-3960 4.9 Switching The Program Back To The Front

Maintenance BDS 3960
Teledyne Analytical Instruments 56
60 0.6 13.6
70 0.7 15.2
80 0.8 16.8
90 0.9 18.4
100 1.0 20.0
The analog output signal has a voltage which depends on the
oxygen concentration AND the currently activated analysis range. To
relate the signal output to the actual concentration, it is necessary to
know what range the instrument is currently on, especially when the
analyzer is in the autoranging mode.
To provide an indication of the range, a second pair of analog
output terminals are used. They generate a steady preset voltage (or
current when using the current outputs) to represent a particular range.
Table 4-3 gives the range ID output for each analysis range.
Table 4-3: Range ID Output
Range Voltage (V) Current (mA)
Range 1 0.25 8
Range 2 0.50 12
Range 3 0.75 16
Range 4 1.00 20
4.9 Switching The Program Back To The
Front
There are times that the Analyzer program may drop out of sight
from the front of the screen even though it is still running. If Analyzer
program icon is tapped to run the program, an error message will be