Gas Sample Probe Series ASP

Version ASP 300, ASP 400, ASP 500 Heated

Application

These gas sample probes ASP are designed for continuous gas sampling in difficult processes with gases of high or low dust content, different temperatures and extreme humidity.

Because of the 3 different lengths, they are suited from low to very high dust contents.

Depending on the acid dew point, we work with the standard probe at 180°C or with a high temperature version at 320 °C (f.e. Denox measurements)

Description

These heated sample filters cover  the biggest range of applications , due to it’s modular design and various options.

With the 3 possible lengths of heated filter body’s , we can integrate a filter element of 150 mm, for most applications up to 1 g dust/m³

We use a filter of 250 mm for applications up to 4 g dust/m³

If we add the blow-back function we can go up to 10 g /m³

In our last model we have a filter of 500 mm for dust up to 10 g/m³

When this type is equipped with blow-back we can go up to 20 g/m³

For even higher dust loads, we are able to put a primary filter on top of the first filter.
The big advantage is that both filters are replaceable without dismounting the probe.

This means that all filters can be replaced with a minimum of tools and in the shortest time.

The cleaning of the sample tube or the preliminary filter can be effected by extracting the filter from the probe.

The probe is controlled in temperature by a microprocessor based PID controller. Alarm or fault contacts can be programmed and the temperature can be changed only by user-code. The sensor is PT100 or FeCuNi for the high temperature version.

In option we have a 2-way Modbus/ RS485 communication, that combines all Ankersmid controllers, so that digital communication with the control room is possible.

Following features are possible in these 3 lengths of probes:

• Calibration gas can be injected into the probe through a check valve  directly to the sample outlet. No calibration gas is lost into the stack.

• An isolation valve with pneumatic control  shuts off the sample outlet from the internal filter area in case of blow back.

• Through a high flow back-flush inlet we can clean the filter and inlet sample tube so fewer maintenance occurs with high dust loads. This inlet can be controlled by a pneumatic or electric valve and also in combination with a volume chamber for high pressure flow.

·               Retractable sample tube , Prefilter or sample tube without dismounting the probe

·               Optional back flush possibility and closing the sample gas outlet

·               Very universal applicability

·               Compact and modular design suited for most applications

·               Easy mounting

·               Easy maintenance

·               Digital communication

·               Patented construction