TEK-LCD 7804B SERIES EXPLOSION-PROOF MODBUS SCANNER

The Tek-LCD 7804B is an explosion-proof, RS485 serial input Modbus® RTU scanner capable of scanning up to 16 Modbus variables and displaying them on an easy-to-read, dual-line, LCD display. This Modbus scanner can be programmed as a Modbus RTU master, slave, or snooper. The Tek-LCD 7804B is available in two upper display line configurations: 5-digit decimal display and feet & inches display with a bar graph. The lower line is the same for both versions and consists of seven alphanumeric characters.

The Tek-LCD 7804B carries FM, CSA, ATEX, and IECEx approvals for use in hazardous areas. Two features that really make the Tek-LCD 7804B stand out are its wide viewing angle display and SafeTouch® through-glass buttons. These buttons allow the Tek-LCD 7804B to be programmed and operated through the glass, thus eliminating the need to remove the cover in a hazardous area.

Description

  • Modbus® Master, Slave, or Snooper Mode
  • Scan up to 16 Modbus Process Variables
  • 5-Digit Decimal or Feet & Inches Level Display
  • On-Board Three-Wire RS-485 with Modbus
  • Independent Scaling, Tag, and Unit for Each PV
  • 7 Alphanumeric Character 0.4″ (10.2 mm) Lower Display for Process Variables, Custom Units, and Tags
  • Explosion-Proof, IP68, NEMA 4X Enclosure
  • Isolated 4-20 mA Output Option
  • Pulse Input for Rate, Total, and Grand Total
  • 13-Digit Totalizer with Total Overflow Feature
  • Password Protection
  • Two Isolated Pulse Outputs Standard, Up to 5 kHz
  • Operates from -40 °C to 75 °C