MIL-RAM Technology, Inc.

Tox-Array 2100 RS485/4–20-mA three- and four-wire smart transmitter
The Tox-Array 2100 RS485/4–20-mA three- and four-wire smart transmitter features the firm’s patented no-false-alarm sensor technology for gas detection. The self-calibrating device makes monthly span adjustments based on its life curve. It also offers automatic gas calibration in two minutes, plus non-intrusive, hands-free and magnetic switches. Other highlights include: offsite sensor-only calibration to replace sensors in the field without recalibration; an option to house four 12–15-A time delay relays in the same enclosure; and an RS485 Modbus RTU option that can link 247 points on a pair of twisted wires.

TA-2048MB gas-detection digital Modbus rack-mount controller
The TA-2048MB gas-detection digital Modbus rack-mount controller features a 48-channel system, with three separate 16-channel Modbus networks. It has local or remote power supply options and four single-pole/single-throw (SPST) relays that are common to all channels on each network. It features a backlit 16-character by 2-line liquid crystal display, automatic scrolling that provides channel data and fault conditions, and simple front-panel, push-button channel setup. Its redundant storage of configuration parameters provides excellent system reliability. Optional features include an explosionproof design, remote relay modules, a remote analog output module, and a remote digital output module. It can be installed at any point on an RS-485 network to minimize wiring.