Omega Engineering CN3271 Series User Manual page 10

I
A'/A
A/A'
N
11
S
T
B'/B
B/B'
R
12
U
M
COMMON
E
13
N
T
I
11
N
S
T
12
R
U
M
13
E
N
T
Fig.11
LHL-1-NEUTRO.pmd 7
E) Power Line and grounding E) Power Line and grounding E) Power Line and grounding E) Power Line and grounding E) Power Line and grounding
N, L2
4
M
POWER SUPPLY
A
100 to 240 Vac
S
24 Vac/Vdc
5
T
R (S,T), L1
E
Fig.12
R
NOTES:
1) Before connecting the power line, check that
the voltage is correct (see Model Number).
2) For supply connections use 16 AWG or larger
wires rated for at least 75 °C.
3) Use copper conductors only.
4) Do not run input wires with power cables.
5) Polarity does not matter for 24 Vdc wiring.
NOT NOT
6) The power supply input is NOT NOT fuse protected. NOT
Please provide it externally.
Power supply Type Current
24 V AC/DC T 500 mA
100/240 V AC T 125 mA
When fuse is damaged, it is advisable to verify
the power supply circuit, so that it is necessary to
send back the instrument to your supplier.
7) Safety requirements for permanently
connected equipment:
- Include a switch or circuit-breaker in the
installation.
- Place the switch in close proximity to the
equipment and within easy reach of the
operator.
- Mark the switch as the disconnecting
device for the equipment.
NOTE: A single switch or circuit-breaker can
drive more than one instrument.
8) When the NEUTRAL line is present, connect it
to terminal 4.
9) To avoid shock and possible instrument
damage, connect power last.
7
19/04/2004, 15.07
N, L2
R (S,T), L1
Voltage
250 V
250 V