Vaisala PTB330 - Manual (Page 109)

Chapter 5 ______________________________________________________________ Maintenance
VAISALA ______________________________________________________________________ 107
CHAPTER 5
MAINTENANCE
This chapter contains information that is needed in the basic
maintenance of the product.
Periodic Maintenance
Cleaning
Clean the barometer enclosure with a soft, lint-free cloth moistened
with mild detergent.
Error States
In error state pressure is not measured and the output is shown as
follows:
- Analog channel outputs 0 mA or 0 V (you can use the serial line
command AERR or display/keypad to change this fault indication
value, see section Analog Output Fault Indication Setting on page
105.
- The serial port outputs stars (***).
- The cover LED is blinking.
- Optional display: error indicator is lit.