March 2004
7-2
Specifications
Electrical
Specifications
The electrical specifications for the Model UTX878 flow transmitter
are divided into the following categories:
Power Requirements
15-30 VDC loop powered, 0.66 W max
Output Drive Capability:
where PSV = power supply voltage in volts DC
and Rc = cable resistance, 22 AWG cable has 0.04 ohm/ft
For example:
Given a 24-VDC power supply and a 1,000-ft cable (22 AWG,
0.04 ohm/ft),
= 410 ohms
Power Consumption:
660 mW, depending on the loop voltage and current.
In a loop-powered configuration,
Memory
FLASH memory, field-upgradable
Operating Mode
Correlation Transit-Time™ Mode with clamp-on transducers
Input/Output
Specifications
Digital Display:
132 X 64 LCD, configurable to display up to 2 measurement
parameters.
Digital Communications:
Standard: RS232 serial port for PC or terminal.
Analog Output:
4-20 mA on power loop
Cable and Length:
Transducer: 6-ft, 10-ft, 15-ft, 25-ft, 50-ft, 100-ft integral
with
transducer
Power: Shielded 2-wire, twisted pair, 24 gauge
Environmental:
System complies with EMC Directive 89/336/EEC, and
wetted transducers comply with PED 97/23/EC for DN<25.
Max. load (ohms)
50
PSV
15
–
(
)
×
[
]
Rc
–
=
Rc
1000 ft
0.04 ohm/ft
×
40 ohms
=
=
Max. load
50
24
15
–
(
)
×
[
]
40
–
=
50
9
×
[
]
40
–
=
Power Consumption
Loop current
Input power supply voltage
×
=
Содержание UTX878 Ultrasonic
Страница 1: ...March 2004 Process Control Instruments UTX878 Ultrasonic Flow Transmitter User s Manual 910 253A ...
Страница 2: ...iii March 2004 The UTX878 Flow Transmitter and Transducers ...
Страница 8: ...Chapter 1 ...
Страница 20: ...March 2004 Installation 1 11 Figure 1 5 UTX878 Outline and Installation Dwg 712 1196 rev 2 ...
Страница 21: ...March 2004 Installation 1 12 Figure 1 6 Clamping Fixture Outline and Installation Dwg 570 076 rev 1 ...
Страница 22: ...March 2004 Installation 1 13 Figure 1 7 UTX878 Wiring Diagram Dwg 702 528 rev 2 ...
Страница 23: ...Chapter 2 ...
Страница 45: ...Chapter 3 ...
Страница 52: ...Chapter 4 ...
Страница 60: ...Chapter 5 ...
Страница 65: ...Chapter 6 ...
Страница 75: ...Chapter 7 ...
Страница 80: ...Appendix A ...
Страница 85: ...Appendix B ...
Страница 86: ...CE Mark Compliance Introduction B 1 EMC Compliance B 1 ...
Страница 88: ...Appendix C ...
Страница 89: ...Data Records Site Data C 1 ...
Страница 93: ...Appendix D ...
Страница 94: ...Service Record Introduction D 1 Data Entry D 1 Diagnostic Parameters D 3 ...
Страница 96: ...March 2004 D 2 Service Record Table D 1 Service Record cont Date Description of Service Performed By ...