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GASSYS2
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Updated: 8.7.2013
GASSYS2-EA/EB AND GASSYS2-RA/RB O
2
& CO
2
GAS ANALYSIS SYSTEM
GASSYS2 modules measure expired O
2
and CO
2
concentrations. When the subject inspires, air is drawn into the
GASSYS2 through an airflow transducer. The SS11 (GASSYS2 EA/EB) or TSD107B (GASSYS2 RA/RB)
airflow transducer is placed on the inspiration side to eliminate any effects associated with expired air humidity.
When the subject expires, air is directed to the GASSYS2 module. The GASSYS2 is designed to work with
saturated expired air.
Modular assembly makes
complete cleaning easy!
See the
AFT series
of
accessories for airflow
and gas analysis.
Obtain real-time Oxygen Consumption (VO
2
) and Respiratory Exchange Ratio (RER) measurements using the
MP System with a GASSYS2 module and some airflow accessories. The GASSYS2 connects directly to the
MP36 System (GASSYS EA/EB) or via the UIM100C (GASSYS RA/RB) and requires two channels.
The non-rebreathing T-valve directs only expired air to the GASSYS2. Because only expired air is directed to the
module, the system acts to average respiratory outflows. This averaging effect causes the CO
2
and O
2
concentrations to vary in accordance to the mean values resident in a few expired breaths.
Two chamber sizes are available for the GASSYS2. Each chamber assembly includes the chamber casing and rod.
The chambers work exactly the same way and are interchangeable on the module base. Use the smaller chamber
size for small children/medium sized animals.
5-liter chamber
— included in the
GASSYS2-EA/RA
; order chamber only as
RX-GASA
1.7-liter chamber
— included in the
GASSYS2-EB/RB
; order chamber only as
RX-GASB
The GASSYS2 also includes
AFT7
tubing,
AFT11E
Coupler,
AFT22
Non-rebreathing T-Valve, and a
power supply.
GASSYS2 Specs
O
2
sensor:
Warm-up: 10 minutes. Response time 10-90%: 30 sec. Accuracy: ±1% FSR*.
Zirconia solid electrolyte with a 0.1-25% sensing range. It runs hot, which helps burn off humidity.
*FSR = Full Scale Reading
Expected O
2
sensor
lifespan (in years):
[5,256/(number of hours used per year)]*5
If used for 10 hours per week or 520 total hours in a year, O
2
sensor lifespan would
be [5,256/520]* 5 = 50.5 years
CO
2
sensor:
Warm-up: 2 minutes. Response time: < 120 seconds for a 90% step change. Uses a humidity-
repellant (hydrophobic) membrane and has a sensing range of 0-5%. It uses non-dispersive infrared
diffusion with single-beam IR and a self-calibrating algorithm. It also runs hot, which burns off
humidity.
Calibration:
GASSYS2 sensors are factory calibrated prior to shipping.
Power Supply:
12 V DC @ 1 amp (AC300A) wall adapter for serial numbers ending 200 or older.
HARDWARE GUIDE