8.4
Configuration (factory settings)
The configuration can be modified using the HART
computer and PolySoft.
8.4.1
Receiver
Parameter
Measuring parameters
Measured gas
Dräger Pulsar 7700 Rx
Measured gas
Dräger Pulsar 7900 Rx
Measuring range for
a)
Dräger Pulsar 7700
Lower limit
Upper limit
Measuring range for
b)
Dräger Pulsar 7900
Lower limit
Upper limit
Category
LEL used
c)
Capture range
Lower limit
Upper limit
Automatic zero correction
4 to 20 mA interface
Operation as current sink/
current source
"Warning"
Back to measurement from
g)
"Warning" in strong mode
from
"Warning" in strong mode
h)
changes to "Fault"
after
"Maintenance"
®
Factory setting
Methane
Ethylene
0 LELm
5 LELm
0 LELm
5 LELm
IEC
Methane: 44000 ppm
Ethylene: 23000 ppm
0 LELm
–0.3 LELm
0.3 LELm
0.05 LELm/h (activated)
d)
Automatic
3.5 mA (activated)
0.5 LELm
40 % per day
5 days (activated)
3 mA
handheld terminal and the Dräger Device Description (DD) or using a
Possible settings
Methane
Propane
Ethylene
0 LELm
1 LELm to 8 LELm
0 LELm
1 LELm to 8 LELm
IEC
NIOSH
PTB
±25 % of the respective
category
–0.5 ... 0 LELm
0 ... 0.5 LELm
0.0 ... 1.0 LELm/h
Automatic
Current sink
Current source
0.5 mA ... 5 mA
0.05 ... 0.5 LELm
10 ... 90 % per day
1 ... 100 days
0.5 ... 3.2 mA
Notes
Substances other than those
listed in the table can also be
detected and produce a
reading. The gas warning
system is calibrated for the
specified gases.
see "In-depth information on
"LEL used""
can be activated or deactivated
see "In-depth information on
automatic zero correction"
can be activated or
e)
deactivated
can be activated or deactivated
Technical data
en
f)
67