System components D-FL 100

Dynamic pressure probe

Each dynamic pressure probe of type D-FL 100 is a customized product for the respective measuring location. Three different sizes are available depending on the length of the planned measurement path:

• System 1: 22 x 24 mm² for 0.4 to 2 m length, with one-sided (max. 1 m) or two-sided mounting
• System 2: 50 x 53 mm² for 0.4 to 4 m length, with one-sided (max. 1.5 m) or two-sided mounting
• System 3: 90 x 100 mm² for 0.4 to 8 m length, two-sided mounting

Adapter

The cross-over cock is either connected by an adapter to the differential pressure transducer directly on the probe (not for system 3) or via a hose or tube connection.

Cross-over cock

Cross-over device for the backpurging of the dynamic pressure probe

Differential pressure transducer

The transducer is delivered with factory set defaults for the order-specific configuration. The zero point should be calibrated after the installation.

Counter-support

A counter-support is required for a probe mounted on two sides. The counter-support supports the probe not only mechanically, but also enables the compensation of the temperature-dependent longitudinal expansion of the probe.

Mounting tubes with flange

Mounting tubes made of stainless steel 1.4571, adapted to the plant conditions, are available in various lengths. A single flange is required for a one-sided probe; otherwise two flanges are always required.

Optional:

Evaluation unit

The evaluation unit D-FL 100-20 evaluates the measured signal from the differential pressure transducer. A 4 to 20 mA current signal is available as measured value output. A Modbus interface according to VDI 4201 for the connection of an emission evaluation calculator with digital interface is available in addition to the 4 to 40 mA current signal output. The front panel contains five LEDs and one USB port. The LEDs signal the system's current status/operating state.

The various parameters, such as standard density, substitute values for pressure and temperature in the exhaust gas duct, k-factor and measuring ranges are input via the USB port with the help of a PC or the associated software D-ESI 100.

Software D-ESI 100

Software for assigning parameters, visualizing the measured data, and carrying out AST, QAL2 and QAL3 for D-FL 100-20.

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.

Universal control unit D-ISC 100 with evaluation unit D-FL 100-20

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

Automatic back purging unit

An automatic back purging device to keep the measuring openings clean is available for applications with high dust loads.

Weather protection covers

A weather protection cover is available to protect the probe head and the back purging control when the measuring system is installed outdoors.

Additional options:

• Absolute pressure transducer
• Temperature transducer
• Special designs in other materials for applications with particularly aggressive exhaust gases or higher gas temperatures: Standard material for probe stainless steel 1.4571, depending on measurement task also Hastelloy, Inconel or other materials
• dP transducer in Ex-version