Vaisala HUMICAP MMT310 Manual de Serviço Página 60

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GMM111 Carbon Dioxide Module
The Vaisala CARBOCAP
®
Carbon Dioxide Module GMM111 is a CO
2
measurement
module with flow-through aspiration.
Features/Benefits
Compact CO
2
module with
flow-through aspiration
Ideal for control of CO
2
concentrations in incubators
Incorporates Vaisala
CARBOCAP®, the silicon based
NDIR sensor with unique
internal referencing
Advanced single-beam, dual
wavelength measurement with
no moving parts
Measurement range options
0 ... 5 %, 0 ... 10 % and
0 ... 20 % CO
2
Excellent long-term stability
GMM111
The Vaisala CARBOCAP
®
Carbon
Dioxide Module GMM111 is
designed especially for control of
biological processes where high
CO
2
concentrations are used. It has
3 optional measurement ranges
0 ... 5/10/20 % CO
2
. The GMM11 is a
ow-trough model and has barbed
conncectors for attaching the in and
out ow tubes. As the module is not
mounted in the chamber, the chamber
can be heatsterilized without
removing the module.
The Vaisala CARBOCAP
®
CO
2
sensors have been proven to be
accurate anddurable. They have an
excellent long-term stability, which
decreases maintenance. The
superior performance of Vaisala
CARBOCAP
®
sensors results largely
from the stable reference provided by
the electrically tunable Fabry-Perot
Interferometer(FPI).
The tunable FPI lter measures CO
2
absorption, and simultaneously a
reference wavelength. This internal
reference measurement compensates
effectively for any changes in the
optical path, such as light source
intensity changes and contamination.
In the HVAC market, this type of
reference measurement is a unique
feature to Vaisala CARBOCAP
®
products.
The true internal reference
measurement of Vaisala CARBOCAP
®
CO
2
transmitters provides years of
stable CO
2
measurements.
Technical data
Dimensions
Dimensions in mm
Operating environment
Temperature +5 ... +55 °C (+41 ... +131 °F)
Humidity 0 ... 99 %RH non-condensing
Pressure 700 ... 1200 hPa
Gas flow
operating range < 10 l/min
recommended range 0.2 ... 0.8 l/min
Electromagnetic compatibility
Complies with EMS Standard EN61326-1, Generic Environment
Inputs and outputs
Outputs 4 ... 20 mA, 0 ... 10 V
RS485, 2-wire, non-isolated
Operating voltage 24 V (±20 %) AC/DC
Power consumption <2 W
Performance
CO
2
measurement range 0 ... 5 %, 0 ... 10 % or 0 ... 20 %
Accuracy (including repeatability,
non-linearity and calibration
uncertainty) ±(1.5% of range + 3 % of reading)
Long-term stability ±1 % CO
2
/2 years
Response time T
90
1 min at 0.5 l/min flow
Flow rate dependence
< 1 l/min flow no effect
1 ... 10 l/min flow 4 % of reading/ l/min
Temperature dependence, typical -0.3 % of reading/°C
Pressure dependence, typical +0.15 % of reading/hPa
Warm-up time 1 min, 10 min for full
specifications
Product lifetime
> 10 years
Ref. B210566EN-B ©Vaisala 2009
This material is subject to copyright protection, with all
copyrights retained by Vaisala and its individual partners. All
rights reserved. Any logos and/or product names are trademarks
of Vaisala or its individual partners. The reproduction, transfer,
distribution or storage of information contained in this brochure
in any form without the prior written consent of Vaisala is strictly
prohibited. All specifications — technical included — are subject
to change without notice.
For more information, visit
www.vaisala.com or contact
us at sales@vaisala.com
TUBE I.D. Ø4
(TUBE O.D. Ø6)
mA
V
0
B
A
0
24V
mA
V
0
B
A
0
24V
25
65 6
30
60
96
Ø3.2
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