Proservo NMS5
Hauser
77
7.8
Sealing of NMS5
NMS5 can be sealed, and data can be made unchangeable for custody transfer purposes as follows.
Sealing of NMS5 Procedure
1.
Set OPE. DENSITY at GVH=278 as the liquid density (if the density is expected to change during
operation, set the average value.).
2.
Turn off the power supply, open NMS5.
3.
Turn the micro switch to the "on position" on the printed circuit board TCB (see figure below). NMS5
will then enter "write-protect" mode and not accept any further level, weight, or density data changes.
This completes the sealing of NMS5 procedure.
Figure. 78:
T
he printed circuit board TCB
2
20
9
1
6
1
13
1
1
CN
B
CN5
CN
7
CN
6
CN
1
4
SW1
U1
4
1
5
4
1
5
8
5
8
14
5
8
1
4
U20
U19
U15
U13
U10
14
1
15
28
1
16
8
9
1
7
8
U14
U9
U2
1
U7
U4
U11
U12
1
14
7
8
1
16
U24
U6
9
8
C16
C8
C7
U2
DC-DC Converter
C35
U3
C38
ON
OFF
CN9
CN2
CN3
TCB
CD_L423
Protect Switch
7 Commissioning