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Omega Engineering LVCN700 Series manual

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Table of contents for the manual

  • Page 1

    http://www .omega.com e-mail: info@omega.com ® U ser’s Guide L VCN700 S er i es Multi-Point Ultrasonic Level Switch WARRANTY /DISCLAIMER OMEGA ENGINEERING, INC. warrants this unit to be free of defects in materials and workmanship for a period of 13 months from date of purchase. OM EGA Warranty adds an additional one (1) month grace period to th[...]

  • Page 2

    Step One SPECIFICA TIONS Range: L VCN704: 2" to 4' (5 cm to 1.2m) L VCN709: 4" to 9.8' (10 cm to 3m) L VCN716: 4" to 16.4' (10 cm to 5m) L VCN126: 8" to 26.2' (20 cm to 8m) Repeatability: 0.25" (6 mm) Adjustability: Over entire range Hysteresis: L VCN704/709: 0.5" (1.2 cm) (single set point) L VCN71[...]

  • Page 3

    INTR ODUCTION TECHNOLOGY Step Three A. Application: The general purpose ultrasonic level switch pro- vides non-contact level detection up to 26’ or 8m with 3 relays. Each relay can be configured on a single set point alarm, two latched set points for automatic fill or empty , two set points for out of bounds alarms or three set point (relays 1 an[...]

  • Page 4

    Step Four Step Five CALIBRA TION A. Introduction: The switch has two modes, the RUN and CAL modes. In the RUN mode, the switch is operational and the relay(s) will energize or de-ener gize at the calibrated set point distances. In the CAL mode, the relay set point distances and states may be target-cal- ibrated into memory . The switch arrives from[...]

  • Page 5

    Step Seven Step Six CALIBRA TION B. Calibration T ools: T o target calibrate the switch set points, you will need the appropriate power supply (95-250 V AC or 12-28 VDC for DC version), tape measurer , flat reflective target such as a wall, and optional Omega box insert for use as a product holder . C. Off T ank T arget Calibration: The switch’ s[...]

  • Page 6

    Step Eight PR OGRAMMING Step Nine PR OGRAMMING C. Programming a High and Low Level Out of Bounds Alarm: After having powered the switch with the appropriate supply voltage, entered the CAL mode, selected a relay channel and erased any previously input set points, follow the below procedure: 1. Stretch the tape measurer out to the appropriate distan[...]

  • Page 7

    Step T en PR OGRAMMING E. Programming A utomatic Empty: After having powered the switch with the appropriate supply voltage, entered the CAL mode, selected a relay channel and erased any previously input set points, follow the below procedure: 1. Stretch the tape measurer out to the appropriate distance in between the switch and target. 2. Position[...]

  • Page 8

    A. Fitting Selection: Check the switch part number to determine the required fitting mount size and thread type. The switch is commonly installed in tank adapters, flanges, brackets or stand pipes. 1. Adapter : Select a tank adapter fitting with minimal height so as to ensure that the installed transducer will not be substantially elevated into the[...]

  • Page 9

    Step Fourteen High Alarm VA C INPUT HOT NEUTRAL Motor Starter (Pump) RELA Y 1 RELA Y 2 RELA Y 3 L 1 L 2 POWER VA C Cal. Run High Low Select Low Alarm VA C INPUT NEUTRAL HOT High Alarm VDC INPUT HOT NEUTRAL Motor Starter (Pump) RELA Y 1 RELA Y 2 RELA Y 3 (+) (-) POWER VDC Cal. Run High Low Select Low Alarm VDC INPUT NEUTRAL HOT WIRING Step Fifteen T[...]

  • Page 10

    Relay 1 Relay 2 Energize De-Energize Energize De-Energize Backup Primary Stop Relay 1 Relay 2 Energize De-Energize Energize De-Energize Backup Primary Stop Duplexing Control Operation Alternating Control Operation OPERA TION Step Sixteen Relay X Energize De-Energize Start Stop A utomatic Empty Operation A utomatic Fill Operation Out of Bounds Opera[...]