4
Connecting the USB output to your computer is shown in Appendix B. This is designed for
Microsoft 2000and XP. It may work on some other Microsoft operating systems. Some computers
will find a deriver in their system that works with our USB. Otherwise, drivers can be emailed to
you by our tech support department reached at [email protected].
MOUNTING STAND
The A-22 outer case includes a removable stand which can be used two ways:
As tilt stand Hung from wall hook
SERVICE AND MAINTENANCE
Do not attempt to do board level repairs or microprocessor programming yourself. This will void
the warranty. We recommend checking the calibration monthly and replacing the sensor module
annually. General repairs should be done at the factory or by an Eco Sensors authorized service
representative.
Calibration of the sensor on its board (SM-X) is done by computer in a special laboratory at the
factory. Therefore in most cases it is lowest cost to replace the SM-X board than to request that it
be recalibrated.
Instruments with problems during the warranty period should be returned as system (OS-4 and
SM-4) to the factory or authorized service representative for diagnosis and repair.
AC ADAPTER
For use in 120 V 60 HZ areas, the Eco Sensors P-20 adapter should be used. For other areas
adapters should be purchased local that fit local wall sockets and conform to local codes. The
output should be 12 volts DC unregulated, 300-500 mA. For fast charge, the adapter output
should be 1 amp. The plug to our instrument should fit a 5.5/2.5 mm socket with the center pin +.
For further details see our Tech Note P-101.
SPECIFICATIONS
Sensor
: Heated metal oxide semiconductor.
Ranges.
0-1.999 ppm and 2.00-20.00 ppm autoselected.
Sensitivity
: First responds at .01 ppm
