Chapter 1 module overview – Spectrum Controls 1734sc-IE2CH User Manual
Page 9
User’s Manual Pub. 0300257-01 Rev. A
Chapter 1
Module Overview
The 1734sc-IE2CH module has two analog input channels with HART and the IE4CH
has four. Each channel on either module can be configured for current only or current
with HART. This chapter includes information about:
•
General description
•
Input types
•
Data Formats
•
Filter frequencies
•
Hardware Features
•
System overview and module operation
Section 1.1
General
Description
The IExCH module digitally converts and stores analog data for each configured input.
Each input channel can be individually configured via software for HART and provides
over-range and under-range detection and indication.
Section 1.2
Input Types
The IExCH module supports a 4 to 20 mA (3.42 to 20.58mA) input type only.
Section 1.3
Data Formats
User defined scaling is provided by means of a high engineering and low engineering set
point.
Section 1.4
Filter
Frequencies
The module uses a notch filter to provide noise rejection for each input channel. The filter
for each channel is programmable allowing you to select from 7 different filter options:
•
50/60 Hz (default)
•
50 Hz
•
60 Hz
•
100 Hz
•
120 Hz
•
240 Hz
•
480 Hz