Pointgard 2720 Ir - Dräger PointGard 2000 Série Mode D'emploi

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en Factory default settings
Menu Default set-
ting
LEL type NIOSH
Measured Methane
gas
Measured %LEL
gas units
Full scale 100 % LEL
deflection
Beam block Off
Beam block 2 mA
current
Beam block 7.5 %LEL
limit
Calibration 360
interval
[days]
Response Normal
Display cap- 0
ture offset
Display cap- -750 ppm
ture low (methane)
-315 ppm
(propane)
-405 ppm
(ethylene)
Display cap- 750 ppm
ture high (methane)
315 ppm
(propane)
405 ppm
(ethylene)
1) The maximum Beam block limit depends on the type of transmitter
and the selected measuring gas.
Type 340
Menu Default set-
ting
Calibration Propane
gas
Calibration %LEL
gas units
Calibration 50 %LEL
gas concen-
trations
A1 Alarm 20 %LEL
A2 Alarm 40 %LEL
LEL type NIOSH
Measured Propane
gas
30
Range
IEC / PTB / NIOSH / configu-
rable
%LEL / Vol% / PPM / %LEL /
%LIE
20 to 100 %LEL
On / Off
0 to 3.5 mA
1)
0 to max. 15 %LEL
0 to 720
Normal / Fast
The absolute values of the
display capture must be
inside these limits:
-1000 to 2200 ppm
(methane Type 334)
-850 to 850 ppm
(propane Type 334)
-1200 to 1150 ppm
(ethylene Type 334)
Range
0.01 to 100 Vol% at unit
%LEL = 0.3 to 100 %LEL
IEC / PTB / NIOSH / configu-
rable
Menu Default set-
ting
Measured %LEL
gas units
Full scale 100 % LEL
deflection
Beam block Off
Beam block 2 mA
current
Beam block 2.5 %LEL
limit
Calibration 360
interval
[days]
Response Normal
Display cap- 0
ture offset
Display cap- -750 ppm
ture low (methane)
-85 ppm
(propane)
Display cap- 750 ppm
ture high (methane)
85 ppm
(propane)
1) The maximum Beam block limit depends on the type of transmitter
and the selected measuring gas.

15.2.6 PointGard 2720 IR

Menu Default set-
ting
Calibration CO
2
gas
Calibration Vol%
gas units
Calibration 4.0 Vol%
gas concen-
trations
A1 Alarm 1 Vol%
A2 Alarm 2 Vol%
LEL type -
Measured gas CO
2
Measured gas Vol%
units
Full scale 10 Vol%
deflection
Beam block Off
Beam block 2 mA
current
Beam block 0.1 Vol%
limit
Instructions for use
Range
%LEL / Vol% / PPM / %LEL /
%LIE
20 to 100 %LEL
On / Off
0 to 3.5 mA
1)
0 to max. 15 %LEL
0 to 720
Normal / Fast
The absolute values of the
display capture must be
inside these limits:
-850 to 425 ppm
(propane Type 340)
-1800 to 2200 ppm
(methane Type 340)
Range
0.2 to 100 Vol%
0.01 to 100 Vol%
Vol% / PPM
0.2 to 100 Vol%
On / Off
0 to 3.5 mA
0 to 0.1 Vol%
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Dräger PointGard 2000 Series