Chapter 4 ________________________________________________________________ Operation
VAISALA _______________________________________________________________________ 45
Otherwise, the LED indicates the following:
-
LED blinking = calibration of the dry end (offset).
-
LED lit = calibration of the wet end (gain).
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.
NOTE
If calibration is concluded but DIP switch settings are not restored, the
LED indicator keeps blinking.
NOTE
Keep this switch always in the disabled position during normal use of
the transmitter.
