7 IOP Calibration Procedures
7.10 RHMUX IOP Calibration Procedure
454
HPM High-Performance Process Manager Service
R688
Honeywell
December 2020
LLMux FTA calibration connections
Figure 220 LLMux FTA Calibration Connections
100 ž
No Connection
J5
1
2
3
4
J1
100 mV
Source
+
-
T1A
T1B
T2A
T2B
7.10 RHMUX IOP Calibration Procedure
Introduction
The main calibration constants for the Remote Hardened Low Level Multiplexer (RHMUX) IOP are
determined during factory calibration and are used to calibrate the gain block error and the A/D
reference.
A subsequent field calibration calibrates only the A/D reference and is done only for the 100 mV range
which results in the field calibration factor being set to a ratio of the original factory calibration gain to
the field calibration gain. This factor is then used to modify the original factory calibration constants
such that the original factory calibration gain constants still exist.
Summary of Contents for HPM
Page 178: ......
Page 300: ......
Page 390: ......
Page 497: ......
Page 498: ...Honeywell Process Solutions 1860 W Rose Garden Lane Phoenix AZ 85027 USA ...