Vaisala HMM100 Manuel d'utilisateur télécharger pdf (Page 63)

Chapter 6 ____________________________________________________________ Troubleshooting

VAISALA ________________________________________________________________________ 61

CHAPTER 6

TROUBLESHOOTING

This chapter describes the analog output error notification behavior,

some common problems, their probable causes and remedies, and

provides contact information for technical support.

Analog Output Error Notification

If the module is unable to measure due to an error, the analog output will

be set to an error level. The error level depends on the currently selected

analog output mode; see Table 8 below.

Table 8 Error Levels for Analog Output Modes

Analog Output

Mode

Default Error Level

Maximum Value

0 ... 1 V

0 V

2 V

0 ... 5 V

0 V

6 V

0 ... 10 V

0 V

12 V

0 ... 20 mA

0 mA

30 mA

4 ... 20 mA

3.8 mA

30 mA

You can check the current status of the analog output via the serial

interface by using the STATUS command. You can also disable this

error notification behavior; see section Show Calibration Info on page 32.

NOTE

If the error state voltage exceeds the normal output range, t

he minimum

required

supply voltage is higher. As a rule, add one volt to the supply

voltage to get one additional volt from the signal.

See Table 10 on page

For example, for a 0 … 5 V output,

a 6 V error state needs an 11 V

supply voltage.

1 2 ... 58 59 60 61 62 63 64 65 66 67 68 69 70 71

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Vaisala HMM100 Manuel d'utilisateur Page 63

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