代码
275显示信息
可能的故障
a1
eeprom checksum - core processor
流量计需要返修
a2
ram error - core processor
重新上电/流量计需要返修
a3
sensor failure
检查测试点
a4
temperature out of range
检查测试点
a5
input over range
检查测试点
a6
field device not characterizeded
检查特性化. 特别要检查fcf和k1值
a7
real time interrupt failure
流量计需要返修
a8
density outside limits
检查测试点
a9
field device warming up
流量计预热
a10
calibration failed
重新上电， 然后重新标定
a11
excess calibration correction, zero too low
重新上电， 然后重新调零
a12
excess calibration correction, zero too high
重新上电， 然后重新调零
a13
process too noisy to perform auto zero
消除或降低干扰， 重新调零
a14
electronics failure
变送器需要返修
a15
data loss possible
重新上电，检查组态数据
a16
line rtd overrange
检查测试点
a17
case rtd overrange
检查测试点
a18
eeprom checksum － 1000/2000
变送器需要返修