Vaisala VaiNet RFL100 User Manual page 45

8. Connect the new probe to the data logger:
• To connect a probe directly to the data logger, first align the orientation mark on the
probe with the line above the probe connector. Then push the probe in all the way, do
not rotate.
• To connect a probe using an extension cable, use one of the accessory cables that are
designed for RFL100. Insert the cable connector in the same way as a probe, and then
connect the probe to the cable. Note that HMP110 and HMP110T probes must always
be connected using a cable.
9. Move the power switch to the On position.
10. Look at the display and wait for the data logger to start up. Data logger shows the word
NEW on each affected channel when it detects that a probe has been changed. The text is
shown for a few seconds, after which the display shows the measurement reading(s).
Verify that the display shows measurement readings instead of dashes or error codes.
11. Close the battery cover of the data logger. Push the latch down until you hear a click. If
the cover does not close easily, push the probe (or extension cable) in and try again.
12. Insert the data logger back in the mounting bracket.
5.4 Calibration and adjustment
If you think the device is not measuring correctly, calibration and adjustment is
not the first thing to do. Check the following first:
• Make sure nothing is interfering with the measurement: heat sources,
temperature differences, or condensation.
• Check that there is no moisture on the probe. If the sensor has become wet,
wait for it to dry.
• Always wait for the measurement to stabilize.
Calibration means comparing the measurement output of the device to a known
reference, such as a known environment in a calibration chamber or the output of
a reference instrument. Correcting the reading of the device so that it measures
accurately is referred to as adjustment.
Sensors and measurement electronics used by the data logger are fully contained in the
replaceable probe. This allows the probe to be calibrated, adjusted, and replaced as needed.
Probe serial number and calibration information (calibration date and information text string)
are stored in the probe. If the probe is replaced or the calibration information in the probe is
updated, RFL100 automatically sends the new information to viewLinc.
The calibration frequency depends on the application and your compliance requirements.
Vaisala recommends having the probe calibrated and adjusted once a year by Vaisala
Calibration and Repair Services. See www.vaisala.com/calibration.
Generic procedures for on-site calibration and adjustment are provided in this guide:
Chapter 5 – Maintenance
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