Biotector Venturi 19-BAS-001 Bedienungsanleitung

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BioTector Venturi Driven Vacuum Sampler

USER MANUAL

BioTector Venturi Sampler

For connection to BioTector TOC Analyzers.

M3 system with PLC keyboard controls.

Software Venturi Sampler 1-6-stream V5.03

Standard Venturi Sampler

Original instructions

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Read the instructions in this manual carefully before installing or starting

the Venturi Liquid Sampler for the BioTector TOC analyzer.

BioTector Analytical Systems Ltd cannot accept liability for damages due to non-

observance of this manual. Use of spare parts not supplied by BioTector Analytical

Systems Ltd will invalidate the warranty. BioTector Analytical Systems Ltd shall not be

liable for omissions or errors contained herein or for incidental or consequential

damages in connection with the furnishing, performance, or use of this material.

The information contained in this manual is subject to change without notice.

The information contained herein is protected by copyright. Reproduction, adaptation,

or translation of any part of this manual without prior written permission is prohibited,

except as allowed under the copyright laws.

Product names mentioned herein are for identification purposes only and may be

trademarks or registered trademarks of their respective companies.

Where manuals are translated into several languages, the source language text is

considered as the original.

Maintenance, operation and/or commissioning should not be

carried out unless personnel have been fully trained in the

operation of the Venturi Sampler.

Prior to working on the inside of the sampler, the technician

should be grounded via an earth strap.

The Venturi Sampler uses pressurized air and water.

Precautionary Labels Attached to the Instrument

Electrical equipment marked with this symbol may not be

disposed of in European domestic or public disposal systems.

Return old or end-of-life equipment to the manufacturer for

disposal at no charge to the user.

WARNING

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Table of Contents

1. Photograph of typical Venturi Sampler................................................................................ 4

2. Venturi Sampler ................................................................................................................... 5

Build Option 1:..................................................................................................................... 5

Build Option 2:..................................................................................................................... 5

Sensor Options: .................................................................................................................... 5

Utilities................................................................................................................................. 5

3. Technical Specifications....................................................................................................... 6

4. Typical Operational Data ..................................................................................................... 8

5. Manual Operation:................................................................................................................ 8

6. Typical Operational sequences, Fill..................................................................................... 9

7. Fill Timer Blocks in the Venturi Sampler PLC.................................................................. 10

8. Typical Operational sequences, Purge. .............................................................................. 11

9. Empty Timer Blocks in the Venturi Sampler PLC............................................................. 12

10. Venturi Water Purge....................................................................................................... 12

11. Fault conditions.............................................................................................................. 12

12. Programming the BioTector for use with the Venturi Sampler. .................................... 13

13. Software Version............................................................................................................ 13

14. Programming the Venturi Samplers PLC....................................................................... 14

15. To save modified program settings to the Memory Card............................................... 14

16. To restore original program settings from the Memory Card or to upgrade Firmware. 14

17. Six Month Maintenance on the Venturi Driven Vacuum Sampler. ............................... 15

18. Pressure ratings on the Venturi Driven Vacuum Sampler. ............................................ 16

19. Test Certificate ............................................................................................................... 17

20. Venturi Sampler Commissioning and Start-up .............................................................. 18

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1. Photograph of typical Venturi Sampler

Air and Water Wash

Venturi pump

Controller

BioTector Sample

Valve

The Venturi Sampler

with main components

labelled.

Inlet Valve

Inlet Strainer

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2. Venturi Sampler

The Venturi Sampler has 2 possible build options, depending on its construction.

Build Option 1:

The Venturi Sampler can be designed to collect a pressurized sample liquid, reduce the pressure of this

liquid sample to ambient pressure, and supply this sample to the BioTector.

The Venturi Sampler also returns the spent sample back to the pressurised sample point.

Build Option 2:

The Venturi Sampler can be designed to collect a sample of liquid at ambient pressure, from a depth of

up to 7 meters (measured from the bottom of the sampler to the lowest liquid level in the sump, at sea

level), and supply this sample to the BioTector at ambient pressure. The vacuum used in the sampler is

generated with a Venturi pump.

The sampler also returns the spent sample back to the sample point.

Sensor Options:

The Venturi Sampler will have been supplied with one of the sensor options below:

1. Two capacitive level / liquid sensors supplied to detect the sample.

2. One ultrasonic level / liquid sensors supplied to detect the sample.

Systems built with an Ultrasonic sensor, the sensor is enabled on the PLC. Below table shows the

example block settings of a Venturi Sampler with enabled and disabled Ultrasonic Sensor.

Block No.

Block Description

Value

B231

Ultrasonic Sensor Enable

0 = Disabled

1 = Enabled

Utilities

Feed Air requirement: typically 6 bars, 50 LPM when venturi is running.

Purge air requirement, typically 100 LPM at 3.5 bars.

Air must be water, oil and dust free (-20°C dew point).

Wash water requirement: 3 bar with customer supplied regulator fitted.

Usage typical 10 liters per hour.

Water can be heated up to 90C if required for hot water backwash.

Note, blowback pressure for water and air must be 1.5 times the sample pressure.

For additional details, please see BioTector Venturi Sampler Technical Specifications.

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3. Technical Specifications

BioTector Venturi Sampler

Technical Specifications

TYPICAL TECHNICAL DATA

PLC Enclosure: Polystyrene with glazed polycarbonate door

Dimensions (HxWxD): 2010mm x 390mm x 160mm

Weight: 20 kg –30 kg

Noise level: 50-70 dB(A) during filling and purging with short term noise 1 to 2

seconds in duration up to 90 dB(A) when pneumatic valves are

de-energized.

Power Consumption: 24 W (1 Amp 24V DC)

Control Wire Specification: Number of Cores = 6 cores, Current Rating minimum = 3 Amp, CSA

(Cross Sectional Area minimum) = 0.5mm2.

FEATURES IN DETAIL

Operation: PLC with Keyboard

Automatic no sample fill fault indication

Direct control from the BioTector through the 6 core cable

Sample chamber and sample line purge with air and water

Language Options: English (Other languages are available upon request.)

OPTIONAL FEATURES

Multi-stream: Valves for up to 6 streams

CONSUMABLES

Instrument Air: 6 bars

(50 liters/minute flow rate when venturi pump is running at 6bar)

(~100 liters/minute flow rate when venturi sampler is purging at 3.5bar)

Note: If using a standalone compressor please ensure it can continually

supply the above requirements, this may require up to 100% duty cycle.

Air Quality: -20°C dew point (free of water, oil and dust)

Water: 3 bars (~10 liters per hour at 3 bars)

Water can be heated up to 90°C for hot water backwash

Water regulator and/or water heater to be supplied by the user

Service: Typical 6 Monthly Intervals

SYSTEM PARAMETERS

Sample Chamber: PFA

Sample Volume: 70ml available to BioTector

Fittings and Valves: SS-316, EPDM, PTFE

Venturi Pump: SS-316

Sampler Sample Tubing: PFA (1/2” OD x 3/8” ID)

Cycle Time: Controlled by BioTector

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SAMPLE & ENVIRONMENTAL CONDITIONS

Venturi Vacuum: 900 mbar (maximum)

Sample Lift: 7 meters (maximum, at sea level)

(Measured from the bottom of the sampler to the lowest liquid

level)

Sample Transport: See detailed data on the next page.

Note data refers to sample transport times at sea level

Sample Fill Time: See detailed data on the next page.

Note data refers to sample transport times at sea level

Sample Inlet Pressure: Ambient (for applications with high sample pressures up to 4

bars, alternative systems are available)

Pressure for air and water must be at least 1.5 times greater

than the sample inlet pressure.

Drain Pressure: Ambient (for applications with high drain pressure, alternative

systems are available)

Sample Inlet Temperature: 2°C –90°C (36°F - 194°F)

Sample Particle Size: Up to 2 mm, soft particulates

Ambient Temperature: 5°C –40°C

Humidity: 5% - 85%, non-condensing

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4. Typical Operational Data

Build parameters.

First chamber volume: 70ml.

Second chamber volume: 270ml.

Sample tubing: ½” OD x 3/8” ID.

Sample distance, 40 meters, typical filling and purging times

Lift,

meters

Time for venturi

sampler to fill tubes

and chamber

Venturi filling time,

including pre-purge

times for 4 streams.

Add 8s for 6 streams.

Purge

time

Typical overall time,

including time for the

BioTector to inject the

sample and flush its lines.

40s

76s

90s

324s, 5m24s

49s

85s

90s

336s, 5m36s

59s

95s

90s

348s, 5m48s

83s

119s

90s

378s, 6m18s

122s

158s

90s

427s, 7m07s

Sample distance, 80 meters, typical filling and purging times.

Lift,

meters

Time for venturi

sampler to fill tubes

and chamber

Venturi filling time,

including pre-purge

times for 4 streams.

Add 8s for 6 streams.

Purge

time

Typical overall time,

including time for the

BioTector to inject the

sample and flush its lines.

124s

160s

120s

459s, 7m39s

145s

181s

120s

486s, 8m06s

179s

215s

120s

528s, 8m48s

255s

291s

120s

624s, 10m24s

345s

381s

120s

735s, 12m15s

Notes:

•The typical overall times above are also the minimum BioTector cycle time.

•It is essential that the tube slopes gently back to the sample point, dips and rises in the

sample tube increases the sample transport time.

•Any point of the sample tube must never be higher than 7 meters above the sample

point.

5. Manual Operation:

To manually fill the sampler, press the [A] key on the PLC for > 2 seconds. The PLC latches

this input, and this simulates the operation of the BioTectors SAMPLER FILL command.

To manually empty and purge the sampler, press the [B] key on the PLC for > 2 seconds. The

PLC latches this input, and this simulates the operation of the BioTectors SAMPLER EMPTY

command.

To reset the sampler at any time, press the [ESC] key.

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6. Typical Operational sequences, Fill.

Operation: Fill

Default duration

(note that all times are

approximate, and will vary with

the specific application)

Sampler action

Note: If the air used for pressurizing the sampler is below its set point at any time, the samplers fault

output is activated.

BioTector gives fill command or

[A] key on the PLC is held down

for > 2 seconds.

1-2 seconds

No action taken for 1 second.

Purge stream valves with air

4 times 4 seconds

(6 times 4 seconds for 6 stream

option)

Open each stream inlet valve (if

fitted) for 4 seconds.

Close the valve to the venturi.

Open the purge air valve.

Purge the stream valve with

instrument air.

Purge sample chamber and line

with air.

20 seconds

Open the selected stream inlet

valve.

Close the valve to the venturi.

Open the purge air valve.

Purge the sample line with

instrument air.

Fill External Chamber*

0 seconds

Open the selected stream inlet

valve.

Open the venturi air valve.

Allow the External chamber to fill.

Settling Time*

0 seconds

No action

*Note: If a particulate separation chamber “External Chamber” option is being used at the sampling point

externally, Fill External Chamber & Settling Time timers will need to be adjusted according to the site

specific requirements.

Fill the sampler

100 seconds

Open the selected stream inlet

valve.

Open the venturi air valve.

Allow the sampler to fill.

Sampler full

N/A

Close the selected stream inlet

valve.

Deactivate the venturi pump.

There is also a timer which times

out even if the sampler is not full.

After the timer has timed out:

Open the valve to the BioTector.

If the sampler is not full when the

timer times out, an error is

generated.

Note: The sampler remains in the Sampler Full condition, until reset by an empty command from the

BioTector, or the [B] key on the PLC is held down for >2 seconds.

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7. Fill Timer Blocks in the Venturi Sampler PLC.

Block No.

Block Description

Default Value

Unit

B106

Timers used to control the purge sequence for up to 4 or 6

optional stream valves, for 4 and 6 stream venturi sampler

option.

ON: 40

OFF: 1

B126

161 / 241

B147

16 / 24

B148

Purge chamber and line prior to filling timer.

Note: Some applications may have a certain size particulate separation chamber “External Chamber”

option which gathers and settles the sample at the sampling point prior to the Venturi Sampler is filled

with the sample. In applications where this chamber is present, B170 & B172 are changed from the

default zero second value to the site specific values.

B170

External chamber fill time.

B172

External chamber settling time.

B155

This block serves two purposes:

1. There are liquid sensors to stop the Venturi fill sequence

once sample is detected. If no sample is detected within

the duration of this block the fill sequence is automatically

stopped and a fill error activated, this could be due to dry

stream etc. The BioTector Sample valve opens once this

timer elapses also.

To account for variations in the stream the duration of this

block should be longer (~40%) than the typical time taken

for the sensors to detect sample once the ‘Filling Sampler’

message appears on the PLC Display.

2. If the sample is successfully detected during this timer the

sample is allowed to settle while the timer elapses. If the

site conditions require some settling of the sample prior to

sampling by the BioTector then this timer can be extended

to accommodate this need.

100

Default FILL SEQUENCE TIME 4 Stream

136

Default FILL SEQUENCE TIME 6 Stream

144

Note: B126 not included in calculation of FILL SEQUENCE TIME

The SAMPLER time in the BioTectors SAMPLE PUMP menu must be greater than FILL SEQUENCE

TIME of the Venturi Sampler. The FILL SEQUENCE TIME in seconds can be found by pressing the [+]

key on the PLC while in Standby Mode. This will automatically adjust if times are changed from default

settings to show the new FILL SEQUENCE TIME.

In the default configuration the fill sequence of the Venturi sampler takes 136 seconds, this allows 100s

for the Venturi sampler to fill its tubes and chamber, (the other ~40 seconds being used for the initial

purge of the Venturi sampler). This configuration is suitable for sites with a 40m sample line and a lift up

to approximately 5 to 6 meters. Longer sample lines will require the default time in both the Venturi

samplers PLC and BioTector Sampler setting to be changed.

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