EXTECH INSTRUMENTS
7
FM200-en-GB_V1.8 3/17
Maintenance
Low Battery
When the battery icon appears on the LCD, the batteries must be replaced.
In a downward motion, slide the rear battery compartment cover off of the meter housing.
Remove the old batteries and replace with new batteries (all of the same type) observing correct
polarity. This meter uses six (6) 1.5V AAA batteries.
Battery Safety Reminders
o
Please dispose of batteries responsibly; observe local, state, and national regulations.
o
Never dispose of batteries in a fire; batteries may explode or leak.
o
Never mix battery types; install new batteries of the same type.
Error Display Codes
The following errors may appear on the FM200.
ERR-1:
Temperature or humidity sensor is damaged or sensor communication error
ERR-2:
HCHO, Temperature, or humidity readings are out of range
If the sensor is subjected to a high concentration of HCHO or other sensitive chemicals listed in
the Sensor Cross Sensitivity table, it will read ERR2.
Let the sensor run for a few hours in clean air and the meter will read normal again.
HCHO Level Guidelines (for general reference only)
0.03 ppm
Average outdoor level
0.10 ppm
Recommend upper limit for residences by ASHRAE , ANSI, EPA, NIOSH for STEL
0.40 ppm
Recommended upper limit for residential homes
0.50 ppm
OSHA workplace limit
0.75 ppm
OSHA TWA limit
0.80 ppm
Level at which most people first detect odor
2.00 ppm
OSHA STEL limit
www.
.com
1.800.561.8187
