Electro Static Discharge Touch Pad with LCD Power Free Display for Hazardous Areas

Model No.:  SDPD-0219

Electro Static Discharge Touch Pad with LCD Power Free Display for Hazardous Areas

Model No.: SDPD-0219

Electro Static Discharge Touch Pad with LCD Power Free Display for Hazardous Areas

Model No.: SDPD-0219

Description

Static discharge pad is one of the means of dissipating (Neutralizing) Electro static charge on human body, when touched with palm.

Principle of Working

Personnel, during normal activity, generate electro static charge on the body and gets stored in capacitance thereof (Typical value 150 to 220 pF). When a person, having acquired charge above 50 Volts, touches the pad, the electro static charge slowly discharges to earth through pad surface and built in resistors. This discharge energy activates the L.C.D. to display ESd., and it disappears when the body looses the charge. The pad may not display when there is high humidity in the atmosphere, when personnel wearing static dissipative footwear and the personnel are not charged. Since this product is power free, this is particularly suitable to dissipate static charge build up on personnel in areas like zone-1, Hydrogenation, explosive Handling, petrochemical, mining, electronics etc.

Installation

Static discharge pad is wall mounting type. This can be fixed at any place in Hazardous or Non Hazardous areas with good illumination. The earth terminal is to be connected to earth pit. The static discharge pad should be away from direct sunlight.

Maintenance

The SDPD surface is to be cleaned daily with a dry cloth to remove surface contamination.

Technical Specifications

  1. Pad surface resistivity = 100 Mega Ohms.
  2. Pad surface to earth terminal ≈ 50 Mega Ohms.
  3. Charge decay: less than 2 seconds.