User Manual Formaldehyde Thermo-Hygrometer Model FM200 Additional User Manual Translations available at www.extech.
EXTECH INSTRUMENTS Introduction Thank you for selecting the Extech Instruments Model FM200. The FM200 measures Formaldehyde CH2O (HCHO) concentration, Air Temperature, and Relative Humidity. The alarm feature alerts the user when the Formaldehyde 0.08ppm limit is exceeded. This device is shipped fully tested and calibrated and, with proper use, will provide years of reliable service. Please visit our website (www.extech.
EXTECH INSTRUMENTS Meter Description 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. LCD Display HOLD/ Up Arrow Button MODE/ Left Arrow Button SET Button AC adaptor jack Tripod mount (detachable probe also has a Tripod mount) Probe connection (Power) Button MAX-MIN/ Right arrow UNIT Button Down Arrow / Backlight Button Inlet/Outlet ports for tubing Detachable Probe Probe LED indicators Note: Battery compartment located on back of the meter.
EXTECH INSTRUMENTS Operation External Probe and Status LED indicators Attach the External Probe to the connector at the top of the meter. The status indicators on the Probe will flash red when the Sampling Fan is on, solid red when the Sampling Fan is off, and green when the Probe is connected to the meter and functioning normally. The user can connect the supplied tubing to the External Probe’s INLET/OUTLET ports.
EXTECH INSTRUMENTS o o Changing Temperature Units C/ F Short press the UNIT button (while the temperature is being displayed) to switch between °C and °F units. High Alarm with Beeper The alarm threshold range is 0.00 to 5.00ppm. The meter defaults to a 0.08ppm HCHO alarm threshold. To enter the alarm threshold setting mode, press and hold the SET button. Press the HOLD / button to increase the value or press the / button to decrease the value.
EXTECH INSTRUMENTS Hold Function Press the HOLD button to freeze the current readings on the screen during normal measurement mode. The HOLD icon will display when HOLD is activated. In the HOLD mode, some functions are temporarily disabled (MAX/MIN and units selection). Press the HOLD button again to return to normal operation. Backlight Function Press the / button to activate the display backlighting. Power off the meter to disable the backlight function or press the / button again.
EXTECH INSTRUMENTS 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.
EXTECH INSTRUMENTS Specifications HCHO Measurement Range 0.00 to 5.00ppm HCHO Accuracy ±25% of reading +0.03ppm (baseline drift) Accuracy Note: Accuracy meets NIOSH acceptance criterion within ±25% of the true value at 95% confidence level HCHO Resolution 0.01 ppm Temp. Measurement range 0°C to 50°C (32°F to 122°F) Temperature Resolution 0.1°C (0.1°F) Relative Humidity Range 10 to 90% RH RH Resolution 0.1% RH Temperature Accuracy ±1.0°C (2.
