Specifications

NEW CALIBRATION
FACTOR STORED!
Press Enter key to proceed
Calibration of the 4-20 mA interface of Drager
40 mV Value OK?
Y/N
The drager ask 40 mV value OK?
If the reading on Palmflux now is good select Yes and then press Enter
key to proceed, else select N to repeat the calibration
In this phase the reading of concentration in the palmflux must equal
to the full scale you set on the palmflux, more or less a tolerance value
and a little noise. If the value you read is not
correct you can adjust it.
An example: The Drager (and the palmflux) full scale value is set to 20000 ppm and the
reading you're having is 18900 ppm instead of 20000.0 ppm.
You've to compute the "real value" using the following formula:
RealValue= Reading + (FS/4) 160
FS
200 mV REAL VALUE?
200.0
Now the Drager shows: 200 mV REAL VALUE?
200 mV REAL VALUE?
200.0
Where :
! FS is the full scale value (20000 ppm in the example);
! Reading is the value expressed in ppm you're reading on the palmtop (18900
ppm in the example)
Then RealValue = (18900+(20000/4)*160)/20000 = 191.2
Set 191.2 using the arrows and press enter to confirm
NEW CALIBRATION
FACTOR STORED!
Press Enter key to proceed
200 mV Value OK?
Y/N
The drager ask 200 mV value OK?
If the reading on Palmflux now is good select Yes and then press Enter
key to proceed, else select N to repeat the calibration
Alarm ENABLED
Y/N
Now the Drager shows: ALARM ENABLED?
Select Yes and press Enter Key
Now the 4-20 mA of drager is calibrated.
www.westsystems.com
Release 5.39 December 2005
PAGE
8.8
WEST Systems
www.westsystems.com
Portable flux meter handbook
Release 10.0 December 2007
WEST Systems
www.westsystems.com
Portable flux meter handbook
Release 10.0 December 2007