Llmux Fta Calibration Connections; 7.10 Rhmux Iop Calibration Procedure; Introduction; Figure 220 Llmux Fta Calibration Connections - Honeywell HPM Service

7 IOP Calibration Procedures

7.10 RHMUX IOP Calibration Procedure

LLMux FTA calibration connections

100 mV
Source
100 ž
No Connection
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.
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Figure 220 LLMux FTA Calibration Connections

J1
T1A
+
T1B
-
T2A
T2B
J5
1
2
3
4
HPM High-Performance Process Manager Service
Honeywell
R688
December 2020