Emerson Process Management GmbH & Co. OHG
3-24
X-STREAM XEFD
Instruction Manual
HASXEDE-IM-EX
07/2017
Signal:
Comp1
OutRange:
0-20 mA
Low Scale:
0.00
Max Scale:
100.00
AutoScale:
Yes
FailMode:
Live
0/4 mA:
0.00
20 mA:
100.00
Hold:
No
3.9 Checking the Settings
“
0/4 mA
” and “
20 mA
” enable to finetune the
analog output to compensate possible devia
-
tions based on electronics tolerances:
• Set “
Signal
” to
0 mA or 20 mA
• measure the output current,
• adjust it to the expected value.
Accepted range:
-10,000
...
+10,000
“
Hold
” selects the output’s behaviour during
calibrations.
If set to
Yes
,
• the
analog output is fixed to the last mea
-
sured value;
• concentration alarms, which may otherwise
be triggered by the concentrations of the
calibration gases, are supressed.
If set to
No
,
• the analog output signal always corre-
sponds to the actual measured value during
calibration; this may trigger alarms if limits
are exceeded.
Note!
This behaviour may be undesireable if e.g.
the unit is connected to a data acquisition
system.
