AquaXact Issue 1.0
© Servomex Group Limited 2017
37
E.1
AquaXact 1688 Calibration Options
Do not store replacement tips for more than 12 months before use to
assure the calibration is still valid.
Aluminum oxide sensors require periodic calibration. We suggest that you validate the
performance of the transmitter yearly and if out of specification do one of the following.
1. If you do not have either a MonoExact DF310E or dedicated AquaXact 1688 controller
you will need to return your transmitter to Servomex for recalibration or have a service
engineer visit during which the sensor tip can be replaced.
2. If you have a MonoExact DF310E or dedicated AquaXact 1688 controller there are
several options. These procedures are described in the digital controller manual.
a. You can replace the sensor tip and upload the new calibration (from a USB
memory stick) to the transmitter.
b. You can run a single point span point using a calibration gas or other
known moisture concentration gas.
