BA 4510
5.2 Parametrisation
5.2.1 Adjustable Parameters
Parameter
Section
Remarks
Display
O
2
: 0…21 (100) Vol-% or in ppm
Measuring range 100 Vol.% on request
Analog output
0…20 mA or 4…20 mA
alternatively 0…10 V or 2…10 V
Output scale
Linear
Logarithmic (base 10)
Logarithmic scale recommended if the meas-
ured value spans several decades.
Suppressed zero point
0.00001…21 Vol.% or
0.1…21000.0 ppm
Advisable for optimal resolution in a certain
range
Maximum measured value
20.000…21.000 Vol.% or 200000…210000 ppm,
higher values on request
This value corresponds to the respective end
value of the analogue signal (e.g. 20 mA)
Measurement response time t
90
1 ... 99 s
Formed from arithmetical average of the
measured value
Limit
0…99.99 Vol.%
or 0…999999 ppm
Set as lower or upper limit with the symbol
">" or "<"
Limit delay
1 ... 99 s
Time which must have been exceeded before
the alarm is signalled.
Transfer rate of the RS-232 port
4800, 9600, 19200 baud
Measuring gas flow rate
Internal pump, switch on or off via keyboard
The pumping capacity is regulated via flow
measurement
5.2.2 Programming Menus
Use the keys below the display to access the following menus (the display shows the current key configuration). Here you can al-
ways use the
key to select specific parameters, which can be changed with the various keys, then press the
key again to
confirm.
A main display
Flow
Status line
Pump status (on/off via key) and cell temperature
An LED indicates the following statuses:
Flashing red: Error
Green: OK
Yellow: Limit
14
Bühler Technologies GmbH
BE550013 ◦ 09/2018
