System components D-R 320

Transmitter/receiver unit D-R 320 M

The transmitter and receiver optics are integrated together with the electronics in a compact unit in a rugged housing. The transmission-reception unit consists of the measuring head, the swivel adapter, the process connection and the field facing panel. This measuring unit is installed directly above the exhaust gas duct, on a DIN 100 PN 6 or ANSI 4" 150 lb flange. No adjustment is required.

Supply unit D-TB 200

The supply unit of the dust concentration measuring instrument D-R 320 is used to supply electricity and purge air and provides the connection for the transfer of the measured data. The regulated purge air is used to keep the optical interfaces of the transmission and reception optics of the D-R 320 clean. The device automatically reports any failure of the purging air.

Optional:

Universal control and display unit D-ISC 100

The connected equipment is easy to configure and operate using the D-ISC 100 universal control and display unit. The display provides an immediate overview of the current measured values and the status of the measuring instruments.

Measured value acquisition

In the simplest case the measured values and reference values are transferred to the plant's control system. The measured values and status signals that are sent can also be fed to an emission calculator system for further processing, either via discrete signals (4 to 20 mA and configurable relay contacts) or via Modbus according to VDI 4201-3.

Quick-closing shutter

The swivel adapter can be optionally replaced by an adapter with a fully integrated quick-closing shutter. By using this quick-closing shutter, the path between the measuring device and the exhaust gas is closed mechanically, but not airtight in the event of a fault (failure of power supply or purge air); the measuring device is thereby temporarily protected against overheating. The measuring head takes over control of the quick-closing shutter.

Weather protection covers

A weather protection cover is available to protect the measuring system when it is installed outdoors.

Explosion proof version

An explosion proof version with pressurized enclosure according to Ex p, Zone 1 or Zone 2 is available for use in hazardous areas.