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ROC800-Series Instruction Manual
Revised Jul-14
Calibration
7-1
Chapter 7 – Calibration
This chapter provides overview information about calibration
procedures for the Analog Input (AI) modules, HART module, RTD
Input module, and Multi-Variable Sensor modules (MVS and MVS
I/O).
For the full calibration procedure, refer Refer to the
ROCLINK 800
Configuration Software User Manual (for ROC800-Series)
(Part
Number D301250X012)or the
ROCLINK 800 Configuration Software
User Manual (for ROC800L)
(Part Number D301246X012).
In This Chapter
7.1 Calibration Overview........................................................................7-1 7.2 Calibration Frequency......................................................................7-1 7.3 Preparing for Calibration..................................................................7-2Caution
Before beginning the calibration process, determine if the module is
used in a control application. If the module is part of a control
application, ensure the system is off-line before proceeding.
7.1 Calibration Overview
Use ROCLINK 800 Configuration software to perform initial
calibration or re-calibration of the inputs on the AI, HART, RTD, and
MVS modules. For example, you might re-calibrate after changing an
orifice plate in the meter run the ROC800 handles. You can perform
calibrations on sensor inputs from either orifice meter runs or turbine
meter runs.
The AI, MVS, and RTD calibration routines support five-point
calibration, with the three mid-points calibrated in any order. You
calibrate the low-end (zero reading) first, followed by the high-end
(full-scale) reading. You then calibrate up to three mid-points, if
necessary.
The HART calibration routine supports two-point calibration. You
calibrate the low-end or zero reading is calibrated first, followed by the
high-end or full-scale reading.
7.2 Calibration Frequency
Remote Automation Solutions recommends that your organization
establish a routine—quarterly, semi-annual, or annual—pattern of
verification and/or calibration for devices and software that meets or
exceeds the API 21.1 recommended practices.
Establishing verification and calibration routines ensures not only that
your devices and software are functioning optimally but that your