VorTek Pro-T, Инструкция по эксплуатации

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Chapter 2 Installation Series M22/M23/M24 Instruction Manual
2-
28
M-000-00010
4-20
mA 3
4-20
mA 1
DC
PWR
+ - +
4-20
mA 2
- + - +
R
S
48
5
R
S
48
5
R
S
48
5
G
N
D
-
OPTION 2
+
ALARM
2
PULSE
OUT
FREQ
OUT
+ - +
ALARM
1
- + -
4
OPTION 1
1 2 3 1 5 2 3
ALARM
3
- + -
4 5
+ -
Figure 2-27. DC Wiring Terminals
DC Power Wiring
The DC power wire size must be 20 to 12 AWG with the wire
stripped 1/4 inch (7 mm). Connect 18 to 36 VDC (300 mA, 9 W max-
imum) to the +DC Pwr and
– DC Pwr terminals on the terminal block.
Torque all connections to 4.43 to 5.31 in-lbs (0.5 to 0.6 Nm).
18 to 36 VDC @ 300 mA Max.
Figure 2-28. DC Power Connections
Warning!
Use a Class I or Class II power supply.
A power switch is not provided with this me-
ter, an approved switch meeting the power
requirements listed in Appendix A must be
provided by the user. It must be easily ac-
cessible and marked as the disconnect for
the flow meter.
Only the connectors supplied with the meter
are to be used for connecting wiring.
If the equipment is used in a manner not
specified the protection provided by the
equipment may be impaired
Caution!
The DC wire insulation temperature rating
must meet or exceed 85°C (185°F), maxi-
mum operating voltage 300 VRMS.