Thermo Scientific AquaSensors™ DataStick™ Measurement System User Guide
14
3
Installation
DataStick sensors are designed for installation in a variety of insertion, immersion and sanitary applications. Although the communications
cable is sealed and strain relieved for all communications adapters, we recommend that the cable be protected from process and heat
by being run through conduit or cable trays. User interface software should be installed on a chosen computer or a local smart junction box
should be installed for local calibration and monitoring.
3.1
Unpacking
Inspect the equipment and packing materials for signs of shipping damage. If there is any evidence of damage, notify the transit carrier
immediately. After unpacking, it is recommended to save the shipping carton and packing materials in case the measurement equipment
must be stored or re-shipped.
Sensor heads with wetted parts are shipped with yellow caps and include pH, ORP, DO and Ozone measurements. If these sensor heads
are to be stored for more than two weeks before installation they should be inspected to be sure the electrodes remain moist. The cap
should contain moist absorbent material that is in physical contact with the electrode when the cap is installed or secured. It the sensor
head has dried out, refer to the maintenance and refurbishment sections of this user guide.
3.2
Mounting
Use a 1-¼ inch wrench to turn the sensor body into pipe fittings that have internal 1-inch NPT threads. Use Teflon tape on all threads
to insure a proper seal. Do not use liquid thread compounds on DataStick threads.
DataStick systems use 1-inch NPT threads for insertion and immersion applications. The threads on the back-body are used for
submersion and Thermo Scientific AquaSensors Union Mount hardware. The front threads are used for insertion into standard plumbing
tee’s. PEEK® sensor heads with sanitary face seals should be used in sanitary applications along with stainless steel sensor bodies that
have special mounting rings between the wrench flats and the NPT threads.
We recommend the Thermo Scientific AquaSensors Union Mount hardware for applications where the sensor is removed more than once
per week for calibration or maintenance.
Save the protective cap and use it to keep
electrodes hydrated whenever the sensor
is removed from service.
The sensor should be positioned at least
15
°
up from horizontal. This will insure that
entrained air does not form a pocket around
the sensor head.
DO NOT USE PIPE SEALANT.
Pipe
sealants may not provide adequate sealing
or may react with different plastic materials.
Use Teflon® thread tape.
DO NOT OVER TIGHTEN!
Maximum torque: 65 lbs
⋅
inch (7 N
⋅
m)
