beautypg.com

Vaisala HMD70 User Manual

Page 8

background image

HMD70U/Y Transmitters
Operating Manual

U303en-1.1

4

1997-07-31

3.3

Grounding

Open the lid and mount the cable bushing set 18941HM. Do the grounding
according to Figure 3.3. When connecting the signal cable to the transmitter
housing, fold the cable braid between the brass disk in order to achieve the
best possible EMC performance. Do not leave the bare shield of the
connected wires so that it can shortcircuit the electronics!

(If the cable diameter is less

than 7mm, use a shrinking
tube or an adhesive tape)

cable

braid

flexible wires 0.5 mm²

(AWG 20), stranded wires

recommended

D = Ø 7...10mm

3

brass

disks

25

rubber

ring

nut

brass disks

140

165

shielding tube

braid

Figure 3.3

Signal cable grounding with bushing 18941HM