Vaisala WS425 - Manual (Page 11)

Chapter 1 ________________________________________________________ General Information
VAISALA _______________________________________________________________________ 11
Table 4 Maximum Voltages
Pin Min. volts Max. volts Ordering Options
WS425 x 2 ... WS425 x 1 ...
1 Ground Ground
2 Ground Ground
3 Ground Ground
4 N/C N/C
5 -0.3 5.3 Jumper Jumper
6 -0.3 5.3 Jumper Jumper
7 Ground Ground
8 Ground Ground
9 -12.0 20.0 Digital Output Digital Output
10 -12.0 20.0 Digital Input Digital Input
11 -0.5 18.0 +12 V Power +12 V Power
12 -0.5 5.3 Digital Output Analog Input
13 -10.0 12.0 N/C Analog Output
14 -10.0 12.0 Digital Input Analog Output
15 -0.5 5.3 N/C Analog Output
16 -5.0 42.0 Heater Power Heater Power
ESD Protection
Electrostatic Discharge (ESD) can cause immediate or latent damage to
electronic circuits. Vaisala products are adequately protected against
ESD for their intended use. However, it is possible to damage the product
by delivering electrostatic discharges when touching, removing, or
inserting any objects inside the equipment housing.
To make sure you are not delivering high static voltages yourself:
- Handle ESD sensitive components on a properly grounded and
protected ESD workbench. When this is not possible, ground yourself
to the equipment chassis before touching the boards. Ground yourself
with a wrist strap and a resistive connection cord. When neither of the
above is possible, touch a conductive part of the equipment chassis
with your other hand before touching the boards.
- Always hold the boards by the edges and avoid touching the
component contacts.