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2.0 STORAGE INFORMATION
If required, storage prior to installation should be indoors at ambient temperature, not to exceed the following:
Temperature range: -40º- 150ºF (-40º- 66ºC)
Humidity: 0 to 95% R.H. non-condensing.
WARNING:
Transmitter probes with /SW3 option have a flexible stainless steel sensor tube which is not hermetically
sealed. When removing the sensor from the sensor well, care should be taken not to expose the sensor to moisture, and to
prevent water from entering the sensor well.
3.0 INSTALLATION AND BASIC WIRING
3.1 All Installations
Prior to installation, verify the model of the transmitter listed on the nametag is suitable for the intended
application.
Information regarding the model specifications may be found on the AT100 Datasheet at
www.ktekcorp.com.
3.1.1 Compression Fittings
When fitted with a compression fitting as the process connection, the sensor tube is shipped with a set of
TEFLON ferrules, and a set of metal ferrules in a separate bag. The Teflon ferrules are only intended for use in
applications with operating pressures below 50 PSI (3.4 bar) and temperatures below 400ºF (204ºC.); for higher
operating pressures or temperatures or for permanent installation, replace the Teflon ferrules with the metal ferrules.
3.1.2 Floats
During installation, it may be necessary to remove the float and spacer (if included) from the sensor tube.
For proper operation, the float must be reinstalled using the proper orientation. Floats may be marked with "Top for
SPM" or "Top for AT", this end of the float must face the transmitter head. Other floats may be marked with an arrow
indicating the proper orientation. If a float is etched with information but does not indicate a proper orientation, it will
be bidirectional and can be installed in either direction. If a float does not have any markings (sanitary applications)
it will have an extra rolled seam to indicate the top half of the float.
3.1.3 Transmitter Housing
Once installed, the top of the transmitter housing will extend above the
process connection based on the particular model number. The extension of the
probe on some of the options is required to keep the transmitter electronics
within its safe operating environment not to exceed:
Temperature range: -40º- 150ºF (-40º- 66ºC)
Humidity: 0 to 95% R.H. non-condensing.
3.2 Stilling Probes
Certain transmitter options will have the sensor tube inserted into a stilling probe. These options allow the
sensor tube and housing to be removed for service without breaking the seal on the vessel. These options include
(consult model number) SW1, SW2, SW3 and F1.
The compression fittings which hold the sensor inside the stilling probe will contain Teflon ferrules. It is not
necessary to change the Teflon ferrules to metal. This connection will not be required to hold pressure.
AT100-0200-1 Rev L (10-2010) DCN0528
Model
Sensor Type
SW1
1/2" rigid
SW2
5/8" rigid
SW3
1/2" flexible stainless 5/8" tube
F1
5/8" flexible plastic
Option Height
H0
H1, F1 14.75 inches (375 mm)
H2, H3 24.75 inches (629 mm)
Stilling Probe
5/8" tube
3/4" pipe (typical)
1" sectional tube
7.75 inches (197 mm)
5
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