ENMET Formaldemeter htV - Manual (Page 9)

Formaldemeter htV ENMET Corporation
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5.3.3 Procedure
1. Place the standard with the thermometer on a work surface. Handle the calibration standard as little as possible to avoid
heating the tube, holding it by the yellow end caps. Remove both end plugs.
2. Switch the instrument on by pressing the O N -O FF button once. Wait for the display to show:
3. Place the instrument on the work surface and insert the nozzle into the sampling end of the tube (as indicated by the black
arrow). Ensure a good seal around the instrument nozzle by pushing the standard tube firmly against the instrument when
taking a sample.
4. Press the S AMPLE button and wait until the internal sampling pump stops before removing the standard from the
instrument. Replace the end plugs securely.
5. The display will initially show: flashing and for 10 seconds and then a flashing, increasing value as
the sample is analyzed. Observe the final non-flashing reading displayed (after approximately 60 seconds).
6. Note the reading obtained and temperature
7. Refer to the Temperature/Concentration look-up table on the standard tube. If the reading is within 10% of the value
shown in the table, then no recalibration is required.
If recalibration is required, follow the procedure in Section 5.4.
Leave the instrument switched off for approximately 5 minutes to recover before commencing another atmospheric analysis or
calibration adjustment.