Installation, operating and maintenance manual
UNIGAS 300
DDG6004MHGB/08-2017/Rev.A2 Software version from M 1.3.40 and D 2.3.37
39
Gas composition and conversion
Protection level: calibration lock
Name
Unit
Menu item
OBIS code
Description
CO
2
*
mol %
2-1
C.96.1
Carbon dioxide concentration CO
2
H
2
*
mol %
2-1
C.96.2
Hydrogen concentration H
2
N
2
*
mol %
2-1
C.96.3
Nitrogen concentration N
2
d*
-
2-1
7-1:45.11.0
Relative density compared to air at 0 °C
H
s
*
MJ/m
3
2-1
7-1:54.11.0
Calorific value of 1 m
3
gas at 25 °C
Z/Zbfix
-
2-1
7-1:53.3.0
Fixed value used for conversion in the event of
alarm_Z_or_Zb
Fixed value used for conversion for UNIGAS 300 T
and PT version
tmeasure
s
2-2
7-1:0.8.5
Measuring interval for measuring pressure and
temperature and calculation of Z and conversion
factor C
tb
°C
2-2
7-1:41.2.0
Reference temperature (base conditions)
pb
mbar
2-2
7-1:42.2.0
Reference pressure (base conditions)
Calibration
lock for gas
parameters*
-
C.93.22
Selector switch to switch off calibration lock for gas
parameters CO
2
, H
2
, N
2
, d and H
s
.
Options:
o
calibration lock on (factory-set)
o
calibration lock off
o
calibration lock off on condition that the
calibration log book is not yet full (contents
overwriting).
Z and Zb
calculation
-
1-1
C.93.28
When the calculation of Z is disabled, the calculation
is performed with Z/Zbfix. In that case the values of Z
and Z/Zb are not present in menu 1-1
Hs Logging **
-
C.93.29
Setting for logging Hs (instead of Vm3) on channel 6
of the logger interval.
* As from software version 1.3.11 and up it is possible to switch off the calibration lock for these registers to
enable remote programming. To do this, register C.93.22 shall be set by means of UNITOOL. The following
conditions apply:
•
If the calibration lock is switched off, protection level 1 must be active.
•
From software version D 2.3.37, these registries are protected by protection level 2c.
** From software version D 2.3.37.
Impulse outputs
Protection level 1: password 2b
Name
Unit
Menu item
OBIS code
Description
OUT1_div
m
3
/imp
7-1
C.94.1
Scaling
factor
for
impulse
output
1,
configurable from 1 to 100
OUT2_div
m
3
/imp
7-1
C.94.2
Scaling
factor
for
impulse
output
2,
configurable from 1 to 100
Impulse output 1
-
C.93.2
Selector switch for impulse output 1
Impulse output 2
-
C.93.3
Selector switch for impulse output 2
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