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5 grounding – Micromod Micro-DCI: 53ML5100A LOADING STATION User Manual

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2.4.2.3 CURRENT OUTPUT FROM ANO0 AND ANO1

The 53ML5100 Manual Loading Station provides the capability to manually adjust and display one
or two current outputs. Each output is independently configurable as a 0-20 mA or 4-20 mA signal.
(The configuration selections for each analog output are provided in Section 4.) Observe the
proper polarity when connecting each analog output to another instrument.

2.4.3 FACTORY SET CALIBRATION

Each unit contains individual factory set entries that calibrate the two analog inputs (ANI0 and
ANI1) and the two analog outputs (ANO0 and ANO1). There is a calibration sheet supplied with
each instrument that should be retained for future reference when the installation is completed.
Reference Section 5.3 for additional information.

2.5 GROUNDING

Installations are expected to have access to an independent, high quality, noise-free point of earth
reference. The system should be connected by a dedicated, low resistance (less than one ohm)
lead wire directly to the installation’s point of earth reference. This ground reference is referred to
as the Instrumentation Ground. If an instrumentation ground reference does not exist in the instal-
lation, an earth ground electrode should be established with an independent grounding rod or
ground-grid mesh. Grounding connections are described in Sections 2.4.2.1.1 and 2.4.2.1.2.

Section 2. Installation

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