D-R 320 system components

Measuring head D‑R 320 M

The measuring head is integrated together with the electronics in a compact unit in a rugged enclosure.
The measuring head consists of:

• Transceiver
• Swivel adapter
• Process connection
• Field diaphragm

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 with purge air supply

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.

Software D‑ESI 100

Parameterization software, visualization of the measured data and performance of maintenance functions.

The D‑ESI 100 can be parameterized, maintained and, when faults occur, analyzed via the USB port with the help of a PC and the associated software.

Optional

Universal control unit D‑ISC 100

The connected equipment is easy to configure and operate using the D‑ISC 100 control 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 output can also be fed into 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 temporarily protected against overheating in the event of a fault. 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 device version

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