Technical Manual
|
Dräger Polytron
®
8000 Series
89
Technical data
17 Technical
data
17.1 Measuring
ranges
17.2 Signal
transmission to control unit
The measuring range and performance characteristics depend on the installed
sensor (see the Instructions for Use and/or data sheet for the installed sensors).
Frequency of measurement calculation: 1 x per second (update of display, analog
interface and relays).
Sensor
Measuring range
Polytron
®
8100 EC with DrägerSensor
®
EC
Depending on the sensor
Polytron
®
8200 CAT with DrägerSen-
sor
®
DQ
0 to 100 %LEL
Polytron
®
8200 CAT with DrägerSen-
sor
®
LC
0 to 10 %LEL
1)
1) For adjustable full scale deflection, see 15.3.
Polytron
®
8310 IR with DrägerSensor
®
IR
0 to 100 %LEL
Polytron
®
8700 IR with PIR 7000 infra-
red gas sensor
Type 334 (IDS 01x1)
0 to 10,000 ppm
0 to 100 %LEL,
0 to 5 Vol%,
For CH4 (Methane) 0 to 100 Vol%
Type 340 (IDS 01x2)
0 to 10,000 ppm
0 to 100 %LEL
0 to 5 Vol%
Polytron
®
8720 IR with PIR 7200 infra-
red gas sensor
(IDS 01x5)
0 to 100 Vol%
Analog signal
Normal operation
4 ... 20 mA
Drift below zero
3,8 ... 4 mA
Measuring range exceeded
20 ... 20,5 mA
Instrument fault
≤
1.2 mA
Fault on analog interface
> 21 mA
Maintenance signal
3.4 mA steady signal or 1 Hz modulation
between 3 and 5 mA (selectable)