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Ambient conditions
During operation
Temperature
Atmospheric pressure
Relative humidity
CO
concentration
2
O
concentration
2
During storage and transport
Temperature
Atmospheric pressure
Relative humidity
Device outlets
Serial interfaces
Protocol
Connector
Baud rate
Data bits
Parity
Stop bits
Pin assignment
Pin 1, 4, 6, 7, 8, 9
Pin 2
Pin 3
Pin 5
Housing
Gas measurement
Method
Sampling rate
Maximum time to empty water trap
Gas leakage
Data sample rate
Delay time
Total system response time
Cross sensitivity
Drift
1) 2)
O
2
Range
Accuracy
14
10 to 40 °C (50 to 104 °F)
620 to 1100 hPa (9.0 to 15.9 psi), with automatic barometric pressure compensa-
tion
20 to 95 %, without condensation
300 to 1000 ppm
20.95 Vol% ±0.2 Vol% abs. (dry air)
–20 to +70 °C (–4 to 158 °F)
500 to 1060 hPa (7.3 to 15.4 psi)
5 to 95 %, without condensation
RS232 and MEDIBUS
Only connect devices that meet the requirements of IEC 60950-1 for ungrounded
SELV circuits or the requirements of IEC 60601-1 (as of the 2nd edition) for touch-
able secondary circuits with maximum 24 VDC nominal voltage.
STORM / MEDIBUS
9-pole Sub-D, galvanically isolated 1.5 kV against internal electronics, 0.5 kV
against housing.
1200, 2400, 4800, 9600, 19200, 38400 baud
8
Even
1
Open
TXD
RXD
GND
SHLD
Sidestream gas measurement
All values are measured under ATPS conditions, sampling rate calibrated under
NTPD conditions.
The endtidal gas concentration is the value measured at the time of maximum CO
concentration in the expiratory phase.
200 mL/min ±20 mL/min
41 hrs (sample gas under BTPS conditions, ambient air 23 °C)
<10 mL/min
<50 ms
<2.4 s
<3 s
Sum of delay time and gas-specific rise time (T10...90)
<0.2 Vol% for volatile agents, CO
<1 Vol% for O
2
against ethanol (<3000 ppm), isopropanol (<10000 ppm), acetone (<1000 ppm),
methane (<1000 ppm), saturated humidity at 37 °C
Compensated by automated cyclical zeroing
0 to 100 Vol%
±(2.5 Vol% + 2.5 % rel.)
, and N
O
2
2
Supplement Scio Four modules
2
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