Vaisala HUMICAP HMW90 SERIES Guide de l'utilisateur télécharger pdf (Page 53)

Chapter 4 ________________________________________________________________ Operation

VAISALA _______________________________________________________________________ 51

Testing Commands

Test Analog Outputs

Use the ATEST command to force the analog outputs to the given value.

Before using the ATEST command it is useful to give the AMODE

command to verify the output mode of the channels.

ATEST [channel value]<cr>

where

channel = Number of analog output channel to be tested (1 or 2).

value = Voltage or current value to set the channel to. Unit is

determined according to output type (V or mA).

The value you set may not be achievable by the transmitter. Voltage

output can go as high as 12 V, and current output can go up to 25 mA.

Also, current output cannot go down to zero.

After testing the output, give the ATEST command with the channel

number to exit the test mode.

Example (verify output mode of the channels):

>pass 9000

>amode

Aout 1 range ( V) : 0.00 ... 5.00 (error: 5.50)

Aout 2 range ( V) : 0.00 ... 5.00 (error: 5.50)

Example (set channel 1 to 6 V):

>atest 1 6

Aout1 ( V) : 6.000

Example (end test mode for channel 1, resume normal output):

>atest 1

Aout1 test mode disabled.

1 2 ... 48 49 50 51 52 53 54 55 56 57 58 ... 71 72

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Vaisala HUMICAP HMW90 SERIES Guide de l'utilisateur Page 53