HACH LANGE si629 P Manual De Uso página 13

3. Installation
Terminal assignment (interior panel)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
DANGER
Relays:
- Limit the current up to 3 A by using one fuse.
- Do not connect cables with voltage higher than 24 V.
si629 P_HACH_LANGE_Ed.0510.indd ANG:9 si629 P_HACH_LANGE_Ed.0510.indd ANG:9
VCA
WHEN IT IS ON, IT INDICATES A FUSED FUSE.
pH / mV
ELECTRODE
Pt 1000
4-20 mA
L 1
A
L 2 / C
Important notes:
• The si629 P does not require ground con-
nection (terminals 3 or 4).
• In environments with interference problems
it is recommended to connect the instru-
ment to ground in terminal 3 and the use
of triaxial cable, connecting the additional
shield in terminal 4.
If ground is not available it is advised to
leave terminals 3 and 4 free and connect
the additional shield of the triaxial cable
to terminal 9 (Pt 1000 shielding).
• If the temperature probe cable has 2 wires
instead of 4, a bridge between terminal 5
and 6 and ano-
ther one between
7 and 8 must be
done, as indicated
in the scheme.
5
6
Pt 1000
7
8
9
9
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