Chapter 4 ________________________________________________________________ Installation
VAISALA ________________________________________________________________________ 19
CAUTION
The power supply lines are internally connected. You can use either one
of them, but do not connect more than one supply voltage in permanent
installations. Temporary simultaneous use with the USB serial interface
cable or DM70 handheld dewp
oint meter (which also provide operation
Output Noise Minimization Wiring Option
To minimize the output noise:
- Wire only the analog outputs (V/mA) to Port I
- Connect the power supply only to Port II
NOTE
Avoid connecting the Port I and
Port II grounds (pin #3) together.
1701-067
Figure 8 Output Noise Minimization Wiring Option