7.6
* whichever is the larger
† in the range 0-100vpm
** derived, dependant on calibration gases
***indicative reading given above 21% O
2
Table 7.3: 4100D performance specification, oxygen
Gases measured Pm1111E O
2
Basic
Pm1158 O
2
Control
4100995 O
2
Purity
Zr 704 O
2
Trace
Range 0-25% 0-100% 0-100% 0-210000 vpm***
Min.rec.o/p range 0-5% 0-5% 0-0.5% 0-5 vpm
Intrinsic error <0.15% <0.15% <0.02% <0.1 vpm O
2
**
Linearity error <0.1% <0.05% <0.05% <0.1 vpm O
2
†
inherently linear, dependant on calibration gases
Repeatability <0.1% <0.1% <0.01% <0.1 vpm O
2
†
Response (T90) <15 s at
100ml/min
<15 s at
200ml/min
<12 s at
200ml/min
<15 s at
400ml/min
Zero drift / week 0.1% O
2
0.05% O
2
0.01% O
2
<1% of reading
or 250 vpb*
Span drift / week 0.1% O
2
0.1% O
2
0.02% O
2
<1% of reading
or 250 vpb*
Output fluctuation
(peak to peak)
<0.1% O
2
<0.05% O
2
<0.01% O
2
(in the
range 99-100%)
<0.5% of reading
or 10 vpb*†
Cross sensitivity no effects in target applications 5 vpm H
2,
5 vpm CO,
5 vpm CH
4
all <1 vpm O
2
Ambient pressure
coefficient
directly proportional to analyser vent
pressure
<0.003% of
reading for a 1%
change in
analyser vent
pressure
no effect
Ambient temp. coeff./
10°C change
2% of reading or
0.5% O
2
1% of reading
or 0.1% O
2
0.2% of reading
or 0.02% O
2
1% of reading
or 10 vpb*
Inlet sample pressure
effect from 2 to 8psig
<2% of reading
or 0.2% O
2
*
<2% of reading
or 0.1% O
2
*
<0.1% O
2
<0.15% of reading
or 0.1% vpm*
Sample flow effect
over full flow range
<2% of reading
or 0.2% O
2
*
<2% of reading
or 0.1% O
2
*
<0.1% O
2
<0.15 vpm or
<2 % of reading*