6
3.0 Electrical installation
The model 730 operates from a 12-30 VDC regulated power supply for the 0-10 VDC output
version or from a 9-30 VDC regulated power supply for the 0-5 VDC output version. Either
version can be specified with a 5 Pin terminal strip, 9 Pin D-sub, or 15 Pin D-sub on a 6 inch
pigtail. Mating connectors are provided with the terminal strip version. The pinouts for each
option are shown in figures 4, 5, and 6, Page 6.
The ground of any external power supply and readout system should be the same as the
transducer ground (chassis ground) to minimize any possible ground loops, which may effect
the performance and stability of the system.
3.1 Wiring guidelines
The Model 730 is compliant with the Electro Magnetic Compatibility Directive 2004/108
EC, which tests for radio frequency emissions and immunity, provided the following wiring
guidelines are adhered to:
1. All interconnecting cables must have overall metal braid and foil shields covering all
wires and be properly grounded at each end.
2. The cable connectors must have a metal case and it must be in direct contact with the
cable braided shield for the entire circumference of the cable. A single wire from the
shield to the connector case will not be effective.
3. The connectors must make good contact, about 0.01 ohms, to the transducer’s case
(chassis).
4. Versions with the 5 pin terminal strip connector option must be used with a suitable
clamp on ferrite such as the Fair-rite part number 0461164281 which is included with
each unit. The ferrite should be assembled as close to the connector as possible to meet
CE EMI requirements.
WARNING:
Class A equipment is intended for use in an industrial environment. Operation of
the equipment in other locations may cause harmful interference do to conducted as well as
radiated disturbances.
Fig. 4:
Pin out of
5-pin terminal strip
Pin
Function
1
Power supply common
2
Signal output common
3
+ Signal output
4
Case ground
5
Power supply
Fig. 5:
Pin out of 9-pin
D-sub connector
Pin
Function
1
+ Signal output
9
Power supply common
4
Power VDC
8
Signal output common
2, 3, 4, 5, 6, 7
Not used
Fig. 6:
Pin out of 15-pin
D-sub connector
Pin
Function
2
+ Signal output
5
Power supply common
7
Power 15 VDC
12
Signal output common
15
Chassis
1, 3, 4, 6, 8, 9,
10, 11, 13, 14 Not used
