Data Formats; Filter Frequencies; Hardware Features - Spectrum Controls 1769 Series User Manual

1-2 Chapter 1: Module Overview
User's Manual Pub. 0300244-02 Rev. A
Millivolt Input Type Range
±50 mV
±100 mV

1.1.2 Data Formats

The data can be configured on board each module as:
• Engineering units ×1
• Engineering units ×10
• Scaled-for-PID
• Percent of full-scale
• Raw/proportional data

1.1.3 Filter Frequencies

The module uses a digital filter that provides high frequency noise rejection for
the input signals. The filter is programmable, allowing you to select from six
different filter frequencies for each channel:
• 4.17 Hz
• 10 Hz
• 16.7 Hz
• 19.6 Hz
• 62 Hz
• 470 Hz

1.1.4 Hardware Features

The module contains a removable terminal block. Channels are wired as
differential inputs. Two cold junction compensation (CJC) sensors are attached
to the terminal block to enable accurate readings from each channel. These
sensors compensate for offset voltages introduced into the input signal as a result
of the cold-junction where the thermocouple wires are connected to the module.
Module configuration is normally done via the controller's programming
software. In addition, some controllers support configuration via the user
program. In either case, the module configuration is stored in the memory of the
controller. Refer to your controller's user manual for more information.
-50 to 50 mV
-100 to 100 mV