Viatran DL Series Analog Input Process Meter Instruction Manual
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Figure 9. Transmitters Powered by Internal Supply ........................ 20
Figure 10. Transmitter Powered by Ext. Supply or Self-Powered .. 20
Figure 11. Voltage Input Connections .............................................. 21
Figure 12. Relay Connections ........................................................... 21
Figure 13. AC and DC Loads Protection ........................................... 22
Figure 14. Low Voltage DC Loads Protection .................................. 22
Figure 15. F4 Digital Input Connections ........................................... 23
Figure 16. 4-20 mA Output Connections .......................................... 23
Figure 17. Expansion Modules & DIN Rail Mounting Kit ................. 24
Figure 18. External Relays Module Connections ............................. 24
Figure 19. Digital I/O Module Connections ....................................... 25
Figure 20. Interlock Connections ...................................................... 25
Figure 21. Acknowledge Relays w/Function Key or Digital Input .. 58
Figure 22. 1/8 DIN Panel Cutout Template ........................................ 89
ABOUT VIATRAN
Established in 1965, Viatran has over 50 years of experience in providing
solutions for pressure and level measurement. Based in Wheatfield, NY, the
company is a worldwide leading supplier of pressure transducers and
transmitters in a wide range of industries, including automotive, oil and gas as
well as the test stand, fluid power, food and beverage industries. For more
information about Viatran, visit our Web site at www.viatran.com.
INTRODUCTION
The DL series analog input process meter is a multi-purpose, easy-to-use digital
process meter ideal for level, flow rate, temperature, or pressure transmitter
applications. It accepts current and voltage signals (e.g. 4-20 mA, 0-10 V). Three
of the front panel buttons can be custom-programmed for a specific operation.
The analog input can be scaled to display the process in two different scales; for
example, the main display could indicate level in feet and the second display
could indicate the volume in gallons.
The basic model includes an isolated 24 VDC transmitter power supply that can
be used to power the input transmitter or other devices. An additional isolated
24 VDC power supply is included with the 4-20 mA output option. A digital input
is standard.
A fully loaded meter has the following: four SPDT relays, 4-20 mA output, and two
24 VDC power supplies. Its capabilities may be enhanced by adding the following
external expansion modules: four SPST relays (creating an eight-relay process
meter), two digital I/O modules with four inputs and four outputs each, and USB,
RS-232 or RS-485 communication adapters.
The eight relays can be used for alarm indication or process control applications
such as pump alternation control. The 4-20 mA isolated output, Modbus RTU serial
communications, and digital I/O options make it an excellent addition to any
system.
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