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4 2 3 4 6 0 0 A N D 4 2 3 4 6 0 1 | K AT H A R O M E T E R P O W E R S U P P LY U N I T S | I M/4 2 3 4 6 0 0 R E V. E
5 Electrical installation
Interconnection diagrams and cable
requirements
See Figure 4 for interconnections for typical gas analysis
systems.
Katharometer connections
Cable connecting the constant current DC supply from the PSU
to the katharometer should be selected so that the maximum
cable resistance is less than 2 Ω. This limits the maximum cable
length between the katharometer and its associated PSU.
Note that the cable gland accepts a cable between 5 and 9 mm
in diameter.
Mains in
4234 600 | 230 V AC
or
4234 601 | 115 V AC
Figure 4 Typical interconnecting diagram showing 4234 600/601 PSU, katharometer and displays
Power supply unit
4234600/601
mA o/p
10 V o/p
TBB
+12
or
+29
28–
+2
C351
C501
Commander series
Temperature control circuit
The cable connecting the auxiliary 10 V DC supply to the
katharometer temperature control circuit must have cable
conductance capable of passing 1 amp without undue voltage
drop or excessive heating.
Note also that the cable gland will accept a cable between 5 and
9 mm in diameter.
1+
–
4
2+
–
3
For temperature-controlled
7 +
katharometer block type
8 –
6518, 6520, 6524
TBB
10–
4689 display
or
or
1–
+2
1–
Datum
L150
7
Katharometer types
6515
6517
6518
6520
6522
6524
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