Union Instruments CWD2005 SPC, Original Operating Instructions

Page: 58 / 110

Operation
58
Main menu - Options - I/O - Digital outputs
Digital signals (relay outputs, floating change-over contacts) are configured in this
menu.
The following must be observed for this:
Zero position:
The zero position of the digital outputs can be freely selected: low/high.
Process:
The process gas solenoid valve is open and the flame is burning.
Calibration:
The calibration gas solenoid valve is open and the flame is burning.
Maintenance:
The device must be checked in a foreseeable time, but is still ready for operation.
The reason for maintenance can be obtained from the "General information" field.
Examples of reasons include:
•
Filter change (air filter)
•
No calibration gas (calibration canceled)
•
Room temperature too high (air inlet temperature > 41 °C)
•
Gas pressure too low
•
Calibration deviation outside of tolerances
•
The calibration was unstable and was canceled