Vaisala HMT360Series Guide de l'utilisateur télécharger pdf (Page 53)

Chapter 4 ________________________________________________________________ Operation

VAISALA_______________________________________________________________________ 51

To start issuing commands, make sure that HMT360 is connected to a

serial port of your computer and that the terminal session is open. Issue

commands by typing them on your computer according to the following

instructions. In these commands, <cr> stands for pressing Enter (on your

computer keyboard).

Setting the Analog Outputs

ASEL Selecting Analog Outputs

Syntax: ASEL [xxxyyy]<cr>

Turn the internal DIP switch Calibration Enabled/Disabled to position

ON before the selecting the analog outputs and return it to position OFF

after making the selection. Output quantities and their abbreviations are

listed in the table below:

where

xxx = Quantity of Ch 1

yyy = Quantity of Ch 2

Character Quantity Abbreviation Availability Metric Unit Nonmetric Unit

0 relative humidity RH A, D %RH %RH

1 temperature T A, D, F, H °C °F

2 dewpoint

temperature

Td D °C °F

3 absolute humidity a D

g/m

gr/ft

4 mixing ratio x D g/kg gr/lb

5 wet bulb

temperature

Tw D °C °F

6mass

concentration of

water

ppmw H ppm

ppm

7 water activity aw H, F 0 ... 1 0 ... 1

8 relative humidity

of saturation

RS H %RS %RS

9 saturation

temperature

Ts H °C °F

1 2 ... 48 49 50 51 52 53 54 55 56 57 58 ... 96 97

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Vaisala HMT360Series Guide de l'utilisateur Page 53