Home About Us Products Customer Support News & Updates Downloads Contact Us Home > Product Range > Underground Conveyor Control Monitoring & Protection Personnel Tracking / Asset Location & Zoning PC21 Control & Monitoring Solutions Data Communications & Scada Speech Communications Video Monitoring & Displays Power Supplies & Relays Products suitable for underground applications Intrinsically Safe CCTV The NC5 Intrinsically Safe Network Camera is designed and approved for use in hazardous (explosive) gas atmospheres that may be encountered in coal mines. More Details StedFAST StedFAST range of conveyor protection systems is a comprehensive suite of safety and protection products. More Details Programmable Display PD8.2 The PD8.2 programmable display is designed and approved to be used in hazardous (explosive) gas atmospheres that may be encountered in coal mines and petrochemical installations. More Details PC21 Conveyor Control and Monitoring Products The PC21 system can be used to control and monitor the whole of the mine and send the associated data to the surface control room SCADA where it can be displayed/analysed /utilised to enable efficient and safe operations. More Details Data Transmission Fibre optic transmission, FSK SAP Transmission, Instrinsucally Safe Ethernet Switch & Media Converter and Modbus Communications. More Details Intrinsically Safe Ethernet Switch & Media Convertor Intrinsically safe, five port Ethernet switch certified Intrinsically safe for coal mining and group II environments. More Details FSK SAP Transmission Many Modern mines require a comprehensive safety automation system but find that the initial investment of a full intrinsically safe high speed fibre optic data highway too expensive and complicated for their budget. More Details DIS 5 Communication System Low-maintenance and low–cost loudspeaker communication systems, which can enhance safety and efficiency across your entire site More Details MineWatch PC21 Transmission Products Description The PC21 transmission systems can be used to control and monitor the whole of the mine and send the associated data to the surface control room SCADA where it can be displayed/analysed /utilised to enable efficient and safe operations. More Details Personnel Tracking Systems WiPAN Tracking and notification and RFID Personnel and Vehicle Tracking System. More Details PS21 Power Supply Relay Units The Davis Derby Minewatch PS21 range high capacity intrinsically safe 12V dc power supplies provide simple robust solutions for the supply of intrinsically safe controllers and sensors. More Details MineWATCH PS21-D Flameproof/ Dual Intrinsically Safe (2x12Vdc @ 500mA each) Power Supply with 120/240v ac input (other input voltages available). More Details MineWATCH PS21-RD As per MINEWATCH PS21-D but including 6 Intrinsically Safe to Flameproof Interposing Relays for the control of mining flameproof switchgear. More Details MineWATCH PS21-BD As per MineWatch PS21-D but including an 8A/Hr battery packs to create an uninterruptible Power Supply Unit. More Details MineWATCH PS21 BD/B As MINEWATCH PS21-D but including an 8A/Hr battery pack to create an Uninterruptible Power Supply Unit with the addition of analogue output monitoring capabilities of the battery unit. More Details MineWATCH PS21-Int/R This has the same Flameproof enclosure as the MINEWATCH PS21-RD but has no Power Supply chassis and contains 2, 4or 6 Intrinsically Safe to Flameproof Interface Relays. More Details ABOUT US People Policies Terms & Conditions / Privacy Careers Information CONTACT US Davis Derby Ltd, Eagle Park, Alfreton Road, Derby. DE21 4BF How to find us Phone: +44 (0)1332 227500 Email: info@davisderby.com