Calibration; Recommendations For Transmitter Calibration; Calibration Procedures; Dual/Triple Cal - Honeywell SmartLine ST 800 User Manual

Pressure transmitters

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The ST 800 pressure transmitter does not require periodic calibration to maintain accuracy. Typically,

calibration of a process-connected transmitter will degrade, rather than augment the capability of a smart

transmitter. For this reason, it is recommended that a transmitter be removed from service before

calibration. Moreover, calibration will be accomplished in a controlled, laboratory-type environment,

using certified precision equipment.

For a transmitter operating in analog mode, you must calibrate its output signal measurement range using

any compatible handheld communicator or a local display.

Calibration information and procedures for a transmitter operating in the HART/DE mode are provided

in the ST 800 Series HART/DE Option User's Manual, document number 34-ST-25-38, Section on

"Calibration."

STA, STD, STG and STF800 models are optionally offered with multiple calibrations. In lieu of a

standard factory calibration, units can be supplied with 1, 2, or 3 customer specified calibrations. These

calibrations are stored in the meter body and provide users with factory calibrated performance at up to

three different calibrated ranges. This increases application flexibility without requiring any costly

recalibration or additional inventory.

6 Calibration

ST 800 Pressure Transmitter User's Manual

Revision 15

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