Intelligent Dust Collector Controller - Remote Input/ Output Module
Model DNC-T2300-I/O
 

The I/O board offers significant versatility to the "Intelligent Dust Collector Controller" system. It can monitor, display, alert, and store dust collector system parameters from pressure sensors, emission monitors, plenum air flow sensors, broken bag detectors, fan motor current sensors and any other device which has a 4-20 mA current output or contact closure output. The unit works in conjunction with the T2310 & T2320 Timers and also with the DNC-T2300-DSP Display Panel.
 

Inputs: There are three general purpose 4-20mA current loop inputs which are configured by the Timer. Depending on how the particular 4-20 mA inputs are configured, the messages that appear on the Timer's display would either show a generic range of 0-100% based on the 4-20 mA input or data units specific to three pre-programmed sensing devices would be displayed.

There are two general purpose switched inputs which will monitor and report up to two contact closures as alarm conditions to the Timer, and one contact closure input which allows the user to place the Enhanced Timer system in standby mode.

The controller will display the temperature of the "J" type thermocouple in degrees F, with a range of -40 deg. F to 700 deg. F .

History Trending: The I/O board has the capability to store data generated by the Timer connected to its RS-232 port as well as data generated by the various sensing devices connected to its inputs. Data history is subdivided into three categories: Short term history, Long term history, and Alarm history. Short term history is a time and date stamped recording of the hourly averages of the 4-20mA inputs, the Differential Pressure from the Timer, the highest temperature recorded, and the number of outputs that were pulsed in that hour. This Short term history period is two weeks, after which time the oldest 24 hours of recorded data is averaged along with the highest recorded temperature and the number of outputs that were pulsed for that period and is stored in Long term history. The Long term history period is one year, after which time the oldest recorded data is discarded to make room for new data. Alarm history is event driven, if any alarm conditions occur, a time and date stamped "snapshot" of all the system parameters is recorded in a First-In-First-Out circular data buffer. This FIFO buffer can store up to 212 alarm events and is not time dependent. In order to generate the Data History Reports, a DNC-T2300-DSP Remote Display Panel and a terminal device capable of communicating standard ASCII via an RS-232 connection are required.