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Vaisala HMP260 User Manual

Page 5

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HMP260 SERIES

HMP260-U017en-1.5

Operating Manual

1997-11-25

iii

8.

TECHNICAL DATA................................................................................................... 53

8.1.

Relative humidity......................................................................................... 53

8.2.

Temperature................................................................................................. 53

8.3.

Calculated variables .................................................................................... 53

8.4.

Pressure ....................................................................................................... 55

8.5.

Analogue outputs ........................................................................................ 55

8.6.

Electronics ................................................................................................... 55

8.7.

Mechanics .................................................................................................... 56

8.8.

Environmental conditions ........................................................................... 58
8.8.1

Emissions....................................................................................... 58

8.8.2

Immunity ........................................................................................ 58

9.

OPTIONS ................................................................................................................. 59

10. SPARE PARTS......................................................................................................... 59

Appendix 1

Serial commands

Appendix 2

Safety summary

Appendix 3

Installing and using the RS 485/422 serial port module

Appendix 4

Installing and using the digital current loop module

Appendix 5

Error messages

Appendix 6

Calculation formulas: dewpoint, mixing ratio and absolute humidity

Appendix 7

Wiring diagram MK4462

Appendix 8

Installation diagram MK4461

Appendix 9

Approvals and specifications of the protection unit

Certificates:

Technical Research Centre of Finland

No. Ex-94.C.016X
No. Ex-94.C.018X

DEMKO No.

94C.115330X

This manual is for programme version HMPS260 1.01