Description. IN-777 used extensively lightning protection unit. p

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Description. IN-777 used extensively lightning protection unit. p

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IN-777 Overload Protection Unit
Description.
IN-777 used extensively lightning protection unit. proved reliable effective protecting process control equipment against transients induced between signal lines instrument earth through lightning strikes from other sources. circuit design uses zener barriers, simple very effective proved reliable where other more complicated units have failed. unit fused with spares provided. After severe overloads fuses need replaced. maximum protection IN-777 should used each field cable protect process control equipment both ends.
Overload Protection Unit.
Specifications.
Leakage Current Added Line Resistance Transient Voltage Enclosure Dimensions 10µA 24Vdc. Line. (140 (2x70) Loop). Standard. (Ranges From 9.1~75V Available. Please Specify Other Than Required.) IP65 Wall Mount Enclosure. L=150mm, W=115mm, H=60mm.
Note Each IN-777 adds total line resistance. Note ground Signal. Note Specifications based Standard Calibration Unit, unless otherwise specified. Note ongoing research development, designs, specifications, documentation subject change without notification. liability will accepted errors, omissions amendments this specification.
Example Connection Diagram.
IN-777 Signal Signal Line Instrument Cabinet Instrument Power Supply 24Vdc Indicator
Earth
Lines needing protection from lightning strikes, etc.
Field Instruments Pressure Transmitter
Earth Signal Signal Line Instrument IN-777
Quality Assurance Programme.
modern technology strict procedures ISO9001 Quality Assurance Programme applied during design, development, production final inspection grant long term reliability instrument.
Phone: (914) 361-2800 Fax: (914) 361-2818 Website:www.vespo.com (800) 49-VESPO (800) 36-VESPO E-mail: controls@vespo.com
ISO9001
16.02

Description. IN-777 used extensively lightning protection unit. p

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