Vaisala HMP240 User Manual
Page 117
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HMP240
M210300en
Appendix 5: Calculation formulas
115
(TP5,TP6,TP7 and TP8 for the humidity probe and TP1, TP3 and TP4 for the
additional temperature probe). 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
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