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MODEL GFC7000EU CO ANALYZER WITH AUTO-REFERENCE
(Addendum to GFC7000E Manual PN 04584)
05134 Rev -
2
OVERVIEW
The model GFC7000EU is a close derivative of the Model GFC7000E CO Analyzer.
The optical bench is longer (14 m), making the instrument more sensitive at low CO
2
levels. The instrument has a user selectable full scale range of 0-100 PPB to 0-100 PPM
of CO
2
.
The instrument does not come equipped with a sample flow rate sensor. Hence, disregard
any reference to the flow sensor in the users manual.
Because the GFC7000EU is a close derivative of GFC7000E, the Model GFC7000E
Instruction Manual continues to be valid as the reference manual covering the details of
the instrument’s components. Only the sections of the manual that are different between
the GFC7000E and a GFC7000EU are listed in this addendum.
2. SPECIFICATIONS, AGENCY
APPROVALS, AND WARRANTY
2.1 Specifications
Table: Model GFC7000EU Specifications
Ranges
User selectable to any full scale range from 0-100 ppb to 0-100 ppm
Measurement Units
ppb, ppm, µg/m
3
, mg/m
3
(user selectable)
Zero Noise
≤ 0.01 ppm RMS
(1)
Span Noise
< 0.5% of reading RMS over 5 ppm
(1) (3)
Lower Detectable
Limit
0.02 ppm
(1)
Zero Drift (24 hours)
< 10 ppb
(2)
Zero Drift (7 days)
< 20 ppb
(2)
Span Drift (24
hours)
< 0.5% of reading
(2)
(4)
Span Drift (7 days)
< 1% of reading
(2)
(4)
Linearity
Better than 1% of Range
(5)
Precision
0.5% reading
(1)
(5)
Lag Time
<10 sec
(1)
Rise/Fall Time
<60 sec to 95%
(1)
Sample Flow Rate
800 scc/min. ± 10%
Temperature Range
5 - 40°C operating