Dip switch functions, Figure 23 – Vaisala HMT360 User Manual

Page 47

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Chapter 4 ________________________________________________________________ Operation

VAISALA_______________________________________________________________________ 45

DIP Switch Functions

The table below is also printed on the protection board:

0505-285

Figure 23

DIP Switch Functions

1: Analog output test on/off

If you turn the switch to on position (up), you can force the outputs to states
4 mA, 12 mA and 20 mA by pressing buttons Up and Dn on the cover.
Outputs return to normal mode when switch is turned down.

2: Calibration Disabled/Enabled

The EEPROMs are write protected. If this switch is in the disabled position
(down), it does not allow any calibrations or scalings.

3 and 4: Calibration rh, t, analog

With these combinations you can perform relative humidity, temperature
or analog output calibrations with a multimeter or with the transmitter
display unit. Turn the DIP switches to the desired position according to the
table printed on the protective cover.

5: Output quantities

Determines whether the output units are metric (down) on non-metric.

NOTE

Keep this switch always in the disabled position during normal use of the
transmitter.

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