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Cleaning the Transmitter Probe
6 VeriDri™ User’s Manual
6.2 Soaking the Sensor and Shield
While wearing protective gloves, complete the following steps:
1. Place the sensor in the first container of hexane or toluene and allow it to soak for 10 minutes.
2. Remove the sensor from the hexane or toluene and soak it in the container of distilled water for 10 minutes.
3. Remove the sensor from the distilled water and soak it in the second (clean) container of hexane or toluene for 10
minutes.
4. Remove the sensor from the hexane or toluene and set it aside until the shield has completed its cleaning cycle.
5. Clean the shield by repeating steps 1 to 3 above. To ensure the removal of any contaminants that may have
become embedded in the porous walls of the shield, swirl the shield in the solvents during the soaking
procedures.
6. Remove the shield from the hexane or toluene.
7. Carefully replace the shield over the exposed sensor, without touching the sensor .
8. Place the sensor with the installed shield in an oven set at 50°C ± 2°C (122°F ± 3.6°F) for 24 hours.
6.3 Evaluating the Probe
To evaluate the probe, complete the following steps:
1. Re-connect the cable to the transmitter module and measure the ambient dew point. Make sure you measure
the same ambient air as measured in step 2 on page 5 .
2. Compare the two ambient air readings. If the new ambient air reading is within ±2°C (±3.6°F) of the first reading,
the cleaned probe is properly calibrated and may be reinstalled. If the two readings not within that tolerance,
proceed to step 3 below.
3. If the probe is still not reading the ambient air accurately, repeat the cleaning procedure using soaking times
that are 5 times the previous cleaning sequence, until two consecutive ambient air readings are within ±2°C
(±3.6°F).
If the above cleaning procedure does not result in accurate readings, contact Panametrics for assistance.
CAUTION!
Any attempt to open the module or remove the probe from the module will void your
warranty.
CAUTION!
Do not place the transmitter module into the solvents. You should only insert the sensor
portion of the transmitter into the solvents. Also, do not allow the sensor to come into
contact with the surfaces of the cleaning containers or any other hard surface.
Shield