Analog Outputs; Other Outputs; I/O Control - Thermo Scientific SOLA II Flare User Manual

Analog Outputs

Other Outputs

I/O Control

Thermo Scientific

Remote Suspend: To suspend analysis, short the Remote Suspend
connection to the Remote Suspend common terminal. To restart
analysis, open the connection across the Remote Suspend connectors.
The remote control function must be enabled
The following outputs are available with the analyzer. See
Setup and refer to the wiring diagrams shipped with your instrument for wiring
details.

Cal A output: This 4–20 mA dc signal represents the measured
concentration of Cal A. The zero value (4 mA dc) represents zero
measured concentration in the sample. Full scale (20 mA dc) represents
the measured concentration specified in High Range.
 Cal B output: This 4–20 mA dc signal represents the measured
concentration of Cal B. The zero value (4 mA dc) represents zero
measured concentration in the sample. Full scale (20 mA dc) represents
the measured concentration specified in High Range.
The following outputs are also provided: Alarm Relay, Validation in Process,
Status Relay (fail-safe), Malfunction Alarm Relay (fail-safe, normally closed)
and Purge Alarm (fail-safe).
The PLC or DAS connected to the SOLA II Flare drives the validation by
commanding the SOLA II Flare to set the appropriate ranges for the Cal A low
range and Cal B high range. The SOLA II Flare then analyzes the validation
gases and reports the values to the control system.
Each gas should be run for at least 10 minutes and the data latched at the end
of each period.
The sequence of validation steps will be defined by the end user.
The SOLA II Flare will provide the following I/O:

SCS Interface
 Up to five Pneumatic Outputs
 Up to four Relay Dry Contact Outputs

Validation Control
 Two Modbus interface ports: RS-485 and either Ethernet or RS-
232
(Analyzer Setup).
4–20 mA Range
SOLA II Flare User Manual
Chapter 2
Installation
2-3