Teledyne Deltaflow DF180, Руководство по эксплуатации и обслуживанию, Страница: 8 / 42

January, 2018
Page 8
The controller has two external modules, the analog module and the form C relay module. The analog
module is used to take in 4-20mA signals from the various sensors on the instrument panel, and
transmit analog signals out of the instrument panel, such as velocity and temperature. The form C relay
module is used to relay status signals, such as fault or sample valid. Terminated on the form C relay
module is a temperature sensor that measures the ambient temperature of the instrument panel. Table
1-1 shows a complete I/O list for all the modules.
Table 1-1. Deltaflow Controller I/O list
Main Controller Module
Channel Description
Relay 1 Solenoid Valve 1 – Impact Line Purge
Relay 2 Solenoid Valve 2 – Static Line Purge
Relay 3 Solenoid Valve 3 – Isolate DP Transmitter Low Side
Relay 4 Solenoid Valve 4 – Isolate DP Transmitter High Side
Relay 5 Solenoid Valve 5 – Span Calibration
Relay 6 Solenoid Valve 6 – Span Calibration (Low Pressure Instrument Air Delivery)
Relay 7 Solenoid Valve 7 – Span Calibration (Isolate DP Pressure Switch)
Relay 8 Not Used
Digital input 1 External Calibration Start
Digital input 2 External Interference Check Start
Digital input 3 External Blowback Start
Digital input 4 Maintenance
Digital input 5 Calibration Start
Digital input 6 Interference Check Start
Digital input 7 Blowback Start
Digital input 8 Not Used
Analog Module
Input 1 Differential Pressure
Input 2 Stack Temperature
Input 3 Stack Pressure
Input4 User defined
Output 1 Configurable – Differential Pressure, Stack Temperature, Stack Pressure, Velocity, Raw
Velocity, Actual Volumetric Flow, Standard Volumetric Flow, any user defined parameter
Output 2 Configurable – Differential Pressure, Stack Temperature, Stack Pressure, Velocity, Raw
Velocity, Actual Volumetric Flow, Standard Volumetric Flow, any user define parameter
Form C Relay
Relay 1 In Calibration Mode
Relay 2 In Sample Mode
Relay 3 CEMS Fault (reverse logic, 1 = OK: 0 = Fault)
Relay 4 Value Based Alarm (e.g. based on user defined alarm limits)