Vaisala HMP228 - Manual (Page 106)

HMP228
Appendix 6: Error messages
M210282en-A
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The LEDs display these error types as follows:
¡¡¤¤
no frequency at all
¡¡¤¡
a frequency missing from the RH channel
¡¡¡¤
a frequency missing from the T channel
The second error type indicates erroneous y-values (used in internal calcula-
tions):
Display: Serial bus:
E51 T y-value out of range
E53 U1 y-value out of range
The LEDs display these error types as follows:
¤¡¡¡
RH channel y-value out of range
¡¤¡¡
T channel y-value out of range