W HLER RP 72 Soot Test Pump Instruction Manual

W HLER RP 72 Soot Test Pump

General Information

Operation Manual Information

• This operation manual allows you to safely work with the Wöhler RP 72 Soot Test Pump. Please keep this manual for your information.
• The Wöhler RP 72 Soot Test Pump should be employed by professionals for its intended use only.
• Liability is void for any damages caused by not following this manual.

Notes

WARNING!

• Not following this warning can cause injury or death.

ATTENTION!

• Not following this note can cause permanent damage to the device.

NOTE!

• Useful information

Intended Use

• The soot test pump helps to determine the soot number of liquid fuel burners according to the implementing regulation of the German Federal Immission Control Act.

Components

Manufacturer

• Wöhler Technik GmbH
• Wöhler-Platz 1
• 33181 Bad Wünnenberg
• Tel.: +49 2953 73-100

Technical Data

with 10 strokes in 60 seconds

Operating Temperature| +10°C to +30 °C
Accuracy| Soot number ± 0,2

Component Explanation

Component Explanation

NOTE!

• The measuring head (1) has a sampling probe with a length of 220 mm.
• It is possible to install a 750 mm sampling probe (item 25183).
• There is a marking on the tube of the sampling probe. Screw the desired sampling probe into the measuring head up to the mark.

Function test of the Soot Test Pump

Measuring head and probe

ATTENTION!
The measuring head must be clean.

• The clamps on the side must hold the PVC part and the aluminium part tightly together.
• The water trap at the probe connector (4) has to be sealed off with an O-ring, this also applies to the screwed-in sampling probe or the screwed-in smoke testing plug.

How to perform the function test

• Remove the piston (20) from the pump.
• Hold the tip of the probe in water.
• Press the piston (20) into the pump again.

During this procedure, no air bubbles should escape from the tip of the probe.
The valve disc (13) should not be deformed and should lie with its bulging side on the stainless steel spring 11. Both parts should rest unrestricted in the valve receiving means (23).

Tightness of the pump

• The soot test can only be done properly, if the pump is tight. How to perform the tight-ness test:
• Bend and squeeze the hose with the inserted piston and then pull the piston right up.
• After about 3 seconds the piston should jump right down into the pump when released.
• Remove the piston (20) from the pump once again.
• The piston will be bedbound completely if the pump is tight.
• If this does not happen, check the items listed below.
• Perfect valve rings in their right positions:
  • at the water catcher (6) at both plugs (O ring 5)
  • at the valve ring 15 (O ring 14)
  • at the valve receiving means (O ring 22)
• Check the sleeve at the piston: the sleeve (21) has to fit completely into the rabbet of the sleeve holder.
• The outer valve lip of the sleeve should not be damaged.

Determination of the soot number

Function
NOTE!
The soot test pumps determine the soot number in the heating system using liquid fuel, according to the first amendment to the first decree for the implementation of the Federal Emission Protection Law from 22. Sept. 1978.
From the core of the smoke gas, a defined sampling is sucked through a filter paper. The colouration that the smoke gas causes on the filter paper is compared to the fields of a soot comparison chart.

Taking the sample

• The determination of the soot number in the smoke gas and therefore the diagnosis, if there is also oil derivate in the smoke gas, has to be carried out 3 times., See Chapter 5.3. Each time 10 strikes will be necessary. The sample has to be taken out right-angled to the flowing direction of the flue gas.
• An additional measurement has to be carried out of the filter paper.
• was decoloured due to over-heating
• has become noticeably humid due to condensation or
• if no colouration occurred on the filter paper.

Determination of the soot number

• Put the used filter paper under the soot comparison chart and search the matching segment.
• The soot number of the sample is given by the number of the matching segment.
• Determine the arithmetical mean of three soot numbers and round it up or down to the next number.
• This rounded mean represents the soot number of the heating system.

Taking the sample

NOTE!
To avoid condensation on the filter paper, the measuring head (1) and the probe should be warmed on the boiler.

Preparation

• Place the filter paper between the measuring heads (1) and (4).
• Close the measuring heads by pressing the clamps 2. It is important that the notch pin en-gages into the notch of the ryton part.

NOTE!
A few quick pump strokes, previously to the measurement, increase the operational qualities of the instrument.

• Fix the sampling probe tightly in the flue gas pipe at the point of the highest temperature. Use a cone 8 mm Ø.

Extracting the smoke gas

• Do 10 pump strokes as follows:
• Pull out piston (20) slowly (in about 2-3 seconds) and hold it in the final position for about 3 seconds, so that a pressure compensation can be made.

ATTENTION!
Through the filter paper, the pressure compensation can only take place slowly. Therefore it is absolutely necessary to wait 3 seconds before pressing the piston back.

• Press the piston back.
• Repeat this procedure 10 times.

ATTENTION!
Waiting times, with pulled-up pistons, should strictly be kept so that the pump can draw the right amount of flue gas.

• Take the measuring head with the extraction probe (1) out of the check opening.
• Remove the clamps (2) from the probe connection (4).
• Remove the filter paper and analyze the soot spot on the paper as explained in Chapter 5.3

NOTE!
The excentrical check opening of the measuring head (1) allows several tests with the same paper moving the filter paper.

Maintenance

• Proper operation of the Wöhler RP 72 Soot Test Pump requires regular maintenance.

Maintenance work

·Take out plugs (6) and (24).

·Exchange wet cot-ton wool filter rolls (12)

·Open the measuring heads (1) and (4).

·Clean the measuring probe with the probe cleaning brush (see accessories).

Regularly| Greasing the sleeve (21)

·Loosen the screws

(8) and take off the piston guide (18).

·Pull out the piston (20) and sleeve (21).

·Clean sleeve (4) and pump pipe (9) with a soft cloth from the inside, put piston 20 with sleeve (21) back into the pipe and squirt a little special maintenance lubricant on the back of the sleeve.

Twice a year| Check the accuracy of the Soot Test Pumpe

Warranty and Service

Warranty

• Each Wöhler RP 72 Soot Test Pump will be tested in all functions and will leave our factory only after extensive quality control testing.
• If used properly, the warranty period for the Soot Test Pump will be twelve months from the date of sale. Consumables are not covered by this warranty.
• This warranty does not cover the freight and packaging costs when the device is sent to the factory for repair.
• Service by non-authorized personnel or making modifications to the analyzer voids any warranty.

Service
Wöhler has built our reputation on excellence in customer service. Therefore, of course, we are readily available to assist you after the warranty period ends.

• Send us the pump and we will repair it and return it to you with our package service.
• Immediate help is provided by our technical staff over the telephone.

Accessories

Accessories

• Soot comparison chart Order no. 2416
• 2 Soot comparison charts Order no. 369
• Wöhler RP 72 Oil Derivates Test bottle Order no. 2481

Probe fixture

• Threaded Cone for probes 8 mm Ø Best.-Nr. 2494 Order no. 2495

Consumables

• Filter paper, 300 pieces Order no. 2415
• Filter paper, large pack 1,800 pieces Order no. 590
• Filter paper, transparent box, 300 pieces Order no. 3700
• Wadding Filters, short, packed with 25 pieces Order no. 5289
• Wadding Filters, short, pack with 150 pieces Order no. 5290
• Wadding Filters, long, pack with 50 pieces Order no. 2450
• Wadding Filters, long, pack with 150 pieces Order no. 621

Maintenance

• Special maintenance lubricant Order no. 2418
• Probe cleaning brush Order no. 2419
• Turbulence Spiral Order no. 20401

Options

• Measuring head, aluminium with clamps, for waste gas temperatures higher than 250°C and when using sampling probes of a special length.
• Order no. 2728 Probe 220 mm Order no. 2727 Probe 750 mm Order no 25183

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