How to exit 644 self-diagnosis output retention
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The 644 transmitter has a self-diagnosis function and output hold. How can normal detection be restored without a power outage?
What is the diagnostic error code? :o
There are no errors now; the circuit output is forced when the thermocouple is removed. After the wiring is restored, the output remains in low-current output mode; previously, it could be restored simply by turning the power off and on again
Should power be cut off now, or should it remain in low-current mode output?
Normal operation can be restored by turning off the power and then turning it back on.
Since I don’t know how the foreigners’ systems are set up, I’m worried that in case of a power outage, it might go to the highest level.
So, how do we enter the loop test, and then exit it?
It cannot return to normal display; it remains in fault mode, emitting a low current
This post was last edited by tiger2010 on 2020-7-12 at 12:53. ? Is the diagnostic information normal as well? :Are there any photos or something like that?
1. There are uncertainties during the operation process; if force is applied from the interlock circuit side, it can be put into use once the situation on site returns to normal. The control circuit can be placed in manual mode. There’s no need to take risks. 2. As for the specific operational details of the research, a temperature measurement circuit can be connected offline for testing.