4.3 Checking system for leaks
4.3.1 Checking for leaks
The calibrator must be leak free in order to function properly. Leakage may lead to control errors. A rapid pressure
drop will indicate a leak in the system. Check potential problems as follows:
◆
Plug the OUTLET port.
◆
Generate a pressure, let it stabilize, and turn to standby mode. Wait for 2 minutes.
Table 4-1 Prompt and disposal
Error message
Description
Unable to find the pressure module Please check the
connection
Under the current atmosphere the set pressure s value is higher than rated
maximum pressure of device The users should check the local atmosphere
factor
While the actual output pressure is out range of RATED overpressure protecting
value the system will automatically run the vent function for self-protection
The system is failing to connect with internal pressure module but it is trying over
and over again
The internal valve s temperature is abnormal or irregular
Before ADT761 generates any set pressure all inlet air pressure will be roughly
tested by a specialized pressure sensor on entrance THIS sensor should be
standardized or calibrated in factory
The internal valve s temperature is abnormal or irregular that will results the
self-tuning function in errors
The system is failed to communicate with the corresponding pressure module
The set pressure value exceeds the maximum pressure
of this device due to your atmospheric pressure
Over protection pressure range exceeded System is
venting
Connecting internal pressure sensor
The internal valve temperature is abnormal
The test sensor for inlet pressure is not calibrated
Self tuning discontinued due to the internal valve
temperature
48
Содержание ADT761 Series
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