Siemens SIPROCESS GA700, Руководство по эксплуатации, Страница: 203 / 224

Table 10-11 Temperature of measuring chamber and gas path
Temperature of measuring chamber and gas path
Gas path
5 K above ambient temperature
Standard version Approx. 72 °C
Table 10-12 Time response
Time response
Warming-up time (at the analog output)
< 2 h
Dead time T
10
Analyzer module in the field device
(including flame arrestor):
< 1.6 s
Display delay T
90
with an electronic damping set‐
ting of 0 s and a sample gas flow of 1 Nl/min
.
Analyzer module in the field device (including
flame arrestor)
: ≤ 2.4 s
Table 10-13 Measuring response
Measuring response
Output signal variation with static damping con‐
stant of 0 s and dynamic noise suppression of 5% /
10 s
≤ ±0.5 % of smallest measuring range
(noise bandwidth corresponds to 1 % = 6σ value
or 0.333 % = 2σ value),
with vibration compensation activated: < 1.5 times
the value
Detection limit ≤ 1% of smallest measuring range according to
module nameplate (with vibration compensation
activated:
< 1.5 times the value)
Measured value drift At the zero point ≤ ± 0.5% of smallest measuring range / month or
≤ ± 50 vpm O
2
/ month; whichever is greater
For span gas ≤ ± 0.5% of current measured value / month or
≤ ± 50 vpm O
2
/ month; whichever is greater
Repeatability At the zero point ≤ ± 0.5% of smallest measuring range or
≤ ± 50 vpm O
2
; whichever is greater
For span gas ≤ ± 0.5% of current measured value or
≤ ± 50 vpm O
2
; whichever is greater
Linearity deviation with ambient air ≤ 0.1% of full-scale value of characteristic
1)
1)
Untreated ambient air contains less than 20.95% O
2
(literature value) since existing humidity
decreases the oxygen content.
Table 10-14 Influence variables
Influence variables
Ambient temperature
Deviation at zero point ≤ 0.5% of smallest measuring value / 10 K or ≤ 50
vpm O
2
/ 10 K, whichever is larger
Deviation from the span
gas
≤ 0.5% of current measured value / 10 K or ≤ 50
vpm O
2
/ 10 K, whichever is larger
Technical specifications
10.3 OXYMAT 7 technical specifications
Field device
Operating Instructions, 05/2015, A5E35640463-02
91