Process Solutions
Technical Information
Technical Note
SmartLine Pressure ST 800 Calibration Options
Calibrating pressure transmitters to a specific range prior to
High Accuracy Selection
installation provides users with the best overall accuracy.
SmartLine Series ST 800 offers standard accuracies of up to
However, this takes time and qualified equipment to ensure
0.0375% of span. When the high accuracy option is selected
quality results. SmartLine Pressure ST 800 series transmitters
devices are calibrated to an accuracy of 0.025% of span.
are available with several calibration options including dual and
triple factory calibrations, which can save maintenance time and
reduce inventories.
Factory Calibration vs. Range Setting
Transmitters calibrated in the factory to a specific range and span
will always provide better accuracy versus simply re-ranging a
device which may have been calibrated to a different range and
span. Factory calibrations employ the highest quality calibration
equipment to ensure the best possible accuracy at the calibrated
range and span. Re-ranging and or field calibrations typically will
yield lower performance due to the quality of test equipment and
conditions associated with a field calibration.
SmartLine Calibration Options
All SmartLine pressure transmitter calibrations are five point
calibrations ensuring conformance to specification over the entire
calibrated range (see figure 2). Honeywell’s ST 800 series
transmitters are also available with several calibration selections
for standard and high accuracy as well as both single range and
dual or triple ranges as shown in figure 1 below.
Figure 1 – ST 800 Available Calibration Selections
Factory Standard vs. Custom Calibration
Transmitters with factory standard calibrations are shipped
calibrated to those factory standard ranges shown in figure 3.
Custom calibrated units are calibrated to customer ranges
specified at the time of order placement.
Figure 2 – Dual/Triple Calibration Report Example
Dual/Triple Calibration
The dual or triple calibration selections permit customers to
purchse SmartLine ST 800 absolute, differential, flange-mount or
gauge pressure products with up to three precalibrated ranges.
This allows users to stock one transmitter useable on any of
SmartLine Pressure ST 800 Calibration Options
2
three separate applications without needing to recalibrate the
Range limits, spans and accuracy information can be found in the
devices and still benefit from factory level calibration
associated SmartLine technical specifications.
performance.
By stocking one unit instead of three, and simply selecting the
desired factory calibration through a configuration selection,
customers can:



Reduce inventories
Experience maintenance cost savings by not having to
re-calibrate devices prior to installation
Maintain factory calibration accuracy
Honeywell calibrates all SmartLine transmitters. Devices can be
calibrated at the factory default range (see figure 3) or at any
Figure 3 – Factory Default Calibration Ranges
value specified within the range limits of the selected transmitter.
SmartLine Pressure delivers the following value across the entire plant lifecycle:
Reduce project startup time

Transmitter messaging eliminates the need for two
people to perform point-to-point verification

Polarity insensitivity eliminates startup interruptions
and rework due to polarity conflicts
Reduce initial costs and provide flexibility for post-startup
modifications

Modularity lets you pay for only what you need initially,
and allows upgrades later
Lower operating costs, avoid unplanned downtime and
improve product quality

Modularity reduces spare parts inventory and allows
faster replacements

Advanced display aids troubleshooting with up to 24hour trend visibility

Diagnostic summary view provides early problem
detection

Total performance improves product quality through
better control, faster response, and process static
pressure and temperature compensation
Lower total maintenance costs, reduce repair time and
enhance safety

Modularity speeds repairs by avoiding complete device
replacement and associated line breaks

Transmitter messaging and maintenance mode
indication help avoid unit trips and provides additional
communication between operations and field techs

Advanced display clearly provides diagnostic
information, PV views and trending

External configuration buttons provide complete field
device configuration without a handheld
For More Information
Learn more about how Honeywell’s SmartLine
Pressure Transmitters deliver value across the
entire plant lifecycle, visit our website
www.honeywellprocess.com/smartline or contact
your Honeywell distributor or account manager.
Honeywell Process Solutions
512 Virginia Drive
Fort Washington, PA 19034
Honeywell House, Arlington Business Park Bracknell,
Berkshire, England RG12 1EB UK
Shanghai City Centre, 100 Junyi Road
Shanghai, China 20051
SO-14-09-ENG
March 2014
© 2014 Honeywell International Inc.