External Water Dewpoint/Content Option; Equipment Installation - Ametek 241CE II User Manual

Hydrocarbon dewpoint analyzer
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External Water Dewpoint/Content Option

An external water signal can be brought in to the analyzer and then displayed
(output) as water dewpoint temperature or water content on its User Interface
or designated V/I outputs.
To configure the analyzer to accept an external water signal and display
it on its User Interface, additional equipment must be installed on the
Microcontroller and Termination boards. Certain analyzer parameters must
also be calibrated to adjust input ranges.

Equipment Installation

The following equipment must be installed to allow the analyzer to accept an
external water signal.
Equipment required to allow the analyzer to accept an external water signal
includes:
A-2 | 241CE II Hydrocarbon Dewpoint Analyzer
If the external water signal is configured at the factory, the equipment
listed below will already have been installed before shipping. In this
case, only the electrical connections and calibration (voltage input)
will be required in the field, as described in this section.
An isolation module (AD202KN) must be installed in the voltage input
socket (U202) on the Microcontroller board.
A loop-powered (AD1B21AN) or self-powered (1B22N) isolated V/I convert-
er must be installed in the water dewpoint socket (U700), or in the water
content socket (U702) on the Microcontroller board.
A 1 %, 249 ohm resistor must be installed across the voltage input Termi-
nals (12+) and (13-) on connector J101 of the Termination board.
PN 903-8797, Rev A

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