電子壓力開關的顯示故障
一、顯示屏一直顯示錯誤提示
當電子壓力開關的顯示屏一直顯示“error”信息時，那就意味著電子壓力開關的內部程序出現了問題，用戶可以檢查以下內容：
1.檢查電子壓力開關的供電電源是否正常，4-20mA的輸入端的電阻值是否符合電子壓力開關的使用要求。
2.檢查電子壓力開關的各個接線是否有按照說明書上的接線圖正確接線，如果正確接線了，那是否每個導線之間都接觸良好。
3.檢查電子壓力開關設定的壓力范圍是否超出了應有的量程范圍，因為當電子壓力開關過載運行時，顯示屏上確實會出現錯誤提示。
二、顯示值的誤差較大
查看電子壓力開關的各個參數有沒有都設置正確，參數的設置只需要用戶按實際需要設定即可，如果設置的過大或者過小都會引起壓力開關的測量誤差。
西安仕樂克控制器制造有限公司 (www.a3025.cn)
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