Vaisala HMP230 - Manual (Page 138)

HMP230 SERIES
Appendix 5: Error messages
M210225en-B
132
The second error type indicates erroneous y-values (used in internal calcula-
tions):
Display: Serial bus:
E51 T y-value out of range
- the temperature measurement cannot be completed. Check the temperature
sensor and its solderings. Check the temperature measurement wires and their
solderings on the component board (TP5,TP6,TP7 and TP8). If you cannot
find any faults, send the transmitter to Vaisala for repair.
E53 U1 y-value out of range
- the humidity measurement cannot be completed. Check the HUMICAP
sensor and humidity measurement wires and their solderings on the
component board (TP9,TP10 and TP11/15). If you cannot find any faults, send
the transmitter to Vaisala for repair.
E54 U2 y-value out of range
- the measurement hybrid is probably damaged. Send the transmitter to
Vaisala for repair.
The LEDs display these error types as follows:
☼
¡¡¡ RH channel y-value out of range
¡
☼
¡¡ T channel y-value out of range