Recalibration - Nokeval FT10 Series Manual

3. Detach the cover from the measuring module by pressing it with the screwdriver through the small
hole on the enclosure of the measuring module and the cover should pop out
4. Carefully pull out the circuit board
5. Replace the battery with a high quality alkaline 1.5 V size AA battery observing the correct polarity
6. Carefully insert the circuit board all the way back into the enclosure by pushing it between the
guide rails inside
7. Reinstall the cover plate observing the correct orientation of the holes
8. Plug the measuring module back into the transmitter module
9. Properly dispose of the used battery observing the local regulations
General
FT10-IS, FT10-CS and FT10-ES measuring modules have a predefined calibration period of two years.
FT10-RHT measuring modules don't have a predefined calibration period. FT10-RT433 radio transmitter
modules don't need calibration at all, because they have no effect on the measuring accuracy. Each
measuring module has a silver colored type label attached (see picture below) that has the calibration date
(Cal. date:) and the next calibration date (Cal. due:) printed on it. The calibration is most preferably
implemented as a subscribed service where factory calibrated replacement measuring modules are first
sent to the customer who then returns the replaced old modules in the same packaging to the sender. If
there is no calibration subscription, then the calibrated replacement modules can be separately ordered.
For more information, please visit our web pages at address www.nokeval.com and select Support (top of
the page) and then Calibration (left side). The availability and pricing of the calibration subscription service
depends on the destination country.
Delivery of replacement measuring modules
Replacement measuring modules are delivered in practical customized packaging that is to be used for the
return shipment of the old replaced modules. Freshly calibrated modules can be picked up from the
package on-site and the old modules immediately returned to the places where the new modules were
taken from. The packaging includes a return address slip for most convenient return shipment.
Detaching a measuring module
Measuring module is detached from the radio transmitter module as follows. First grasp the measuring
module from the locking latches and fully depress them to release the latches. Then pull the measuring
module straight out of the transmitter module. You may need to wiggle the measuring module slightly to
more easily overcome the friction caused by the two rubber O-rings. If necessary, support the radio
transmitter module by holding it in place with your other hand at the same time when pulling out the
measuring module.

Recalibration

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