Dräger Pulsar 7000 Serie Instrucciones De Uso página 27

8.2 Performance characteristics
Performance characteristics
Measurement technology characteristics Spectral infrared absorption in two spectral ranges
a)
Measured gases
b)
Measuring range
Repeatability
Response characteristic t0 ...t90
with normal signal strength
Response characteristic t0 ...t90
with 5 % residual signal strength
(e.g. with fog, lens contamination)
Linearity error
Temperature effect on zero point
Effect of pressure
Angle of acceptance of the receiver during
zero calibration
Angle of acceptance of the transmitter
during zero calibration
Angle of acceptance of the receiver during
operation
Angle of acceptance of the Pulsar TX S
transmitter during operation
Angle of acceptance of the Pulsar TX L
transmitter during operation
a) 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.
b) Higher values which are extrapolated outside of the valid calibration of 8 LEL-m and which display larger, non-specified uncertainties can also
be output at the digital communication interfaces.
c) With the Pulsar 7700 Duct Mount it can be assumed that the gas distribution within the duct is homogeneous. In this case, the integral
measured gas value with the unit LEL-m can be recorded as a gas concentration with the unit % LEL. Set the distance in meters between
transmitter and receiver as full scale deflection Then, an output current of 20 mA corresponds to exactly 100 % LEL.
Methane, propane, ethylene
c)
0 ...1 LEL-m to 8 LEL-m
0.1 LEL-m
Pulsar 7000 Open Path
with DIGITAL LINK: < 2 s

without DIGITAL LINK: < 2.5 s

Pulsar 7000 Duct Mount
with DIGITAL LINK: < 1,5 s

Pulsar 7000 Open Path and Duct Mount
with DIGITAL LINK: < 10 s

without DIGITAL LINK: < 40 s

10 % of measured value or 5 % of measuring range, whichever is higher
10 % of measured value or 5 % of measuring range, whichever is higher
0.15 % rel. per hPa
Within a beam cone of ± 0.15 °
Within a beam cone of ± 0.4 °
Within a beam cone of ± 0.6 °
Within a beam cone of ± 1.6 °
Within a beam cone of ± 0.6 °
en
Technical data
27