Hach-Lange BUHLER 2000 User Manual

Operating instructions

Water sampler

BÜHLER

2000

www.hach-lange.com

DOC023.52.90153 _BÜHLER_2000_BL1029_March09.doc

Remarks

HACH LANGE GmbH is not liable for possible faults in this documentation. Any liability for direct or
consequential damages in connection with the delivery or the use of this device is excluded as far as it
is legal.

All rights, especially the rights for duplication, distribution and/or translation, are reserved to HACH
LANGE GmbH. Any reproduction, use or duplication of this manual, also in extracts, is prohibited by
law without the previous written agreement of HACH LANGE GmbH.

Subject to changes!

Access code for programming, system settings, key lock

Password:

Your password:

6299

Copyright by HACH LANGE GmbH © 1998 – 2009

General information

MANUAL MODE

MEMORY

Table of contents

Table of contents .................................................................................................................................3

General information.................................................................................................................................4

Safety remarks.....................................................................................................................................4

Before putting into service ...................................................................................................................4

Permissible application........................................................................................................................4

Permissible operating and ambient conditions....................................................................................4

Redelivery for repair.............................................................................................................................5

Use of hazard information....................................................................................................................6

Precautionary labels ............................................................................................................................6

Characteristic features of the BÜHLER 2000 sampler ........................................................................9

Characteristic features of the BÜHLER 1029 sampler ......................................................................11

Sampler Bühler 1029 in combination with insulating box (Isobox) ....................................................12

Installing the apparatus......................................................................................................................13

Connections Bühler 2000 ..................................................................................................................14

Connections Bühler 1029 ..................................................................................................................14

Connector assignment – RS 232.......................................................................................................15

Connector assignment – input signals ............................................................................................15

Connector assignment – battery connection ..................................................................................15

Connector assignment – message ....................................................................................................16

Troubleshooting - general..................................................................................................................16

Sampling modes................................................................................................................................17

Sampling system................................................................................................................................19

Vacuum sampling system..................................................................................................................19

Troubleshooting – vacuum system....................................................................................................21

Programming .....................................................................................................................................22

EXAMPLES FOR STANDARD PROGRAMS .......................................................................................23

MAIN MENU (root):...............................................................................................................................30

CHANGE PROGRAM .......................................................................................................................31

START PROGRAM...........................................................................................................................34

...................................................................................................................................37

SETUP ..................................................................................................................................................38

MODEM SETTINGS..........................................................................................................................39

CHANGE SYSTEM SETTINGS ........................................................................................................41

EXTENDED PROGRAM SETTINGS ................................................................................................43

..............................................................................................................................................45

SERVICE MENU...................................................................................................................................47

APPENDIX A - Special programming................................................................................................50

SPECIAL DISPLAY/MALFUNCTION MESSAGES...........................................................................54

EXTENDED MALFUNCTION MESSAGES.......................................................................................55

EXTENDED MALFUNCTION MESSAGES.......................................................................................55

MESSAGES.......................................................................................................................................55

DIGITAL INPUTS / OUTPUTS ..........................................................................................................56

Rotating distributor.............................................................................................................................57

Troubleshooting - distributor..............................................................................................................58

Maintenance ......................................................................................................................................59

Spare parts / accessories......................................................................................................................62

Circuit diagram: mains connection BÜHLER 2000/1029...................................................................64

Warranty and liability..........................................................................................................................65

Contact...............................................................................................................................................66

Page 3 Manual BÜHLER 2000/1029

General information

General information

We are glad that you have chosen this product.
When developing this device, we combined approved technique with innovative detail solutions.
Greatest importance has also been attached to the design of an apparatus which provides easy
access for connection and maintenance works.

Safety remarks

Disconnect the mains power connections before carrying out any connection, maintenance
or repair works.

Before putting into service

- Please read these operating instructions and special remarks thoroughly before putting the

device into service.

- Familiarize yourself with the safety and operating requirements in order to safeguard

personnel and equipment.

- The apparatus has been subjected to exhaustive quality inspections before dispatch.

- Any service and maintenance works required may only be carried out by trained service

personnel.

- Observe the local safety regulations and the rules for prevention of accidents.

- Observe the rules concerning the handling of hazardous substances.

- Do only use original spare parts or spare parts authorised by the manufacturer.

- No liability or claims under guarantee will be accepted in respect of any modifications or

conversions of the apparatus, other than those carried out by us or by persons authorised by
us or for which we have given express permission (in a written form)! This also refers to any
damage due to incorrect operation and/or improper use of the equipment.

Permissible application

The permissible application of the water sampler consists in the extraction of liquid, aqueous
substances, temperature range 0°C to 40°C. The device must only be installed in areas free from
explosion hazard and must only be used for sampling of non-explosive substances. Please refer to
the technical specifications in chapter “Specifications”. Other applications are not allowed!

Permissible operating and ambient conditions

- Sample extraction of liquid aqueous substances, temperature range: 0°C to 40°C.

- The sampler is designed for operation in non-hazardous areas (no explosion risk).

- The sampler can be operated at ambient temperatures from 0°C to +45°C.

- Sampling from pressurised lines is not possible.

- The device is weather-proof and suitable for outside operation.

Page 4 Manual BÜHLER 2000/1029

General information

Redelivery for repair

Before returning any appliances to us, please pay attention to the following to avoid unnecessary cost
and repair delays:

- Redeliveries only after agreement by the supplier

- All appliances or parts returned to us for repair must be cleaned and free of any hazardous

substances whatsoever (acids, alkaline solutions, solvents, etc.) as in Germany official
regulations regarding waste stipulate that persons in possession of hazardous waste are
responsible for its disposal and that, at the same time, employers are responsible for
protecting their employees against hazardous materials.

- Any cleaning or disposal required to be carried out by us will be charged for accordingly.
All packing materials can be disposed of as usual.

Packing materials are: cardboard, wood, PS and PE.
If the packing is returned free of cost, we will take care of its disposal.

Page 5 Manual BÜHLER 2000/1029

General information

Safety information

Use of hazard information

Please read this entire manual before unpacking, setting up
or operating this equipment. Pay attention to all danger and
caution statements. Failure to do so could result in serious
injury to the operator or damage to the equipment.
To ensure that the protection provided by this equipment is
not impaired, do not use or install this equipment in any
manner other than that specified in this manual.

DANGER

Indicates a potentially or imminently hazardous situation
which, if not avoided, could result in death or serious injury.

CAUTION

Indicates a potentially hazardous situation that may result in
minor or moderate injury.

Important Note: Information that requires special
emphasis.

Note: Information that supplements points in the main text.

Precautionary labels

This symbol, if noted on the instrument, references the instruction manual for operation
and/or safety information.

This symbol, when noted on a product enclosure or barrier, indicates that a risk of
electrical shock and/or electrocution exists.

This symbol, if noted on the product, indicates the need for protective eye wear.

This symbol, when noted on the product, identifies the location of the connection for
Protective Earth (ground).

This symbol, when noted on the product, identifies the location of a fuse or current
limiting device.

Electrical equipment marked with this symbol may not be disposed of in European public
disposal systems after 12 August 2005. In conformity with European local and national
regulations (EU Directive 2002/96/EC), European electrical equipment users must now
return old or end-of life equipment to the Producer for disposal at no charge to the user.
Note: For all electrical products (marked or unmarked) which are supplied or produced
by Hach-Lange, please contact the local Hach-Lange sales office for instructions for
proper disposal.

Read all labels and tags attached to the instrument.
Personal injury or damage to the instrument could occur if
not observed.

Page 6 Manual BÜHLER 2000/1029

Specifications

Device designation
Housing PE/PC(GF10)
Thermostatic control Insulated sample compartment (40 mm insulating layer)

Control Microprocessor control, foil keyboard, back-lit four-line LC-display
Data memory Non-volatile data memory: storage of sampling and malfunction data

Programming 6 user programs (can be edited freely)
Program start options Immediately, at a certain time, by an external signal
Program stop options End of sampling program after one program run, continuous operation
Pause mode Interruption of program at any time
Overfilling protection Adjustable from 1–999 samples/bottle
Interval setting 1 min. to 99 h 59 min. in steps of 1 minute
Pulse setting 1 to 255 pulses/sample
Manual sample extraction Possible at any time without interrupting the current program run
Program protection Up to 5 years after voltage loss
Interface RS 232
GSM modem / wireless
communication
Languages Multi-language, selectable
Signal inputs • 1x analogue: 4-20 mA, optional 0-20 mA,

Signal outputs / status
messages
Sampling method Vacuum system 20-350 ml
Single sample volume
accuracy
Suction height Max. 6,5 m (at 1013hPa)
Pumping speed >0,5 m/s at a suction height of up to at least 5 m (at 1013hPa); pump

Suction hose PVC, L=5 m, ID=9 mm (ID 16 mm at flow-proportional option).
Sampling modes Time-related, flow-dependent, flow-proportional (option), event­Bottle variants 24 x 1 L PE (standard)

Bühler 2000

Option: freezer packs (200x10x8 mm)
Option: compressor cooling (12V/115V/230V)

like sample extractions, bottle changes, messages, external signals

Optional (in combination with PC software)

minimum voltage: 3,3 V (optocoupler)

• 5x digital:(flow, event, 3 inputs can be programmed freely
Max. 8 digital outputs, depending on device version; freely
programmable

< 2,8 %

capacity can be adjusted electronically
Max. hose length 30 m.
related, manual sample

13 L composite container
25 L composite container
4 x 5 L PE
16 x 1 L with freezer packs

Overall dimensions (Hxwxd)

787 x 510 x 468 mm
1030 x 548 x 470 mm with compressor cooling

Weight 22,4 kg 24x1 L version

34 kg 24x1 L version with compressor cooling (sampler incl. battery,
without suction hose, empty bottles)

Power supply 12 V/ 10 Ah lead gel battery (maintenance-free, sealed, leak proof)

115V or 230V mains-operation by means of battery charger in buffer
mode (float charge); power requirement max. 30 W

Number of samples Approx. 2000 samples per battery charge [determined at an ambient

temp. of 20° C, 1,5 m suction height, sampling interval of 1 min.] incl.

distributor advance
Ambient temperature 0 to + 45°C
Sample temperature 0 – 40°C

Page 7 Manual BÜHLER 2000/1029

Specifications

Standards Device meets ISO 5667 standard
Wetted materials PVC, Silicone, PS, PE

Device designation
Thermostatic control Option: only in combination with insulating box (Isobox), freezer packs
Bottle variants Option:

Overall dimensions

Weight

BÜHLER 1029 (like BÜHLER 2000, however, with the following

modifications)

or compressor cooling (12V/115V/230V)

13 L composite container

25 L composite container

4 x 5 L PE bottle

24 x 1 L PE bottle

16 x 1 L bottle with freezer packs

(Hxwxd) sampler

442 x 452 x 222 mm

(Hxwxd) Insulating box – passive cooling

534 x 510 x 430 mm

(Hxwxd) Insulating box – active cooling

775 x 550 x 468 mm

11,6 kg sampler

11,5 kg insulating box – passive cooling (24x1 L)

24,0 kg insulating box – active cooling (24x1 L)

Page 8 Manual BÜHLER 2000/1029

Installation

Characteristic features of the BÜHLER 2000 sampler

The device consists of the following component parts:

1. Sampler upper part

2. Snap-on lock of upper part

3. Intermediate bottom with distributor plate

4. Sampler lower part

5. Four snap-on locks at lower part (two on opposite
side)

6. Recessed grip

Lower part with inserted distributor plate

Opened lower part with bottles

Page 9 Manual BÜHLER 2000/1029

Installation

1. Lid

2. Suction hose connector ¾“

3. Metering vessel

4. Signal connector

5. Battery connector

6. RS 232 interface

7. Lid latch

8. Control unit with keyboard and display

9. ON / OFF switch

10. Intermediate bottom of housing

11. Distributor tray

1. Lid

2. Suction hose connector ¾“

3. Metering vessel

4. Pinch valve

5. Discharge hose

6. Latches of intermediate part

7. Storage battery

Page 10 Manual BÜHLER 2000/1029

Installation

Characteristic features of the BÜHLER 1029 sampler

1. Handle

2. Suction hose connector

3. Metering vessel

4. ON / OFF switch

5. Dosing pinch valve

6. Discharge hose

7. Keyboard / display

8. Connector socket RS232

9. Connector socket of input signals

10. Connector socket of battery

charger

1. Distributor drive

Page 11 Manual BÜHLER 2000/1029

Installation

Sampler Bühler 1029 in combination with
insulating box (Isobox)

1. Distributor finger

2. Intermediate part with distributor plate

3. Lower part for bottles

4. Lead through for discharge hose of metering

vessel

Page 12 Manual BÜHLER 2000/1029

Installation

Installing the apparatus

- We recommend to install the apparatus as close to the sampling point as possible. If installed

outside, the device should be positioned on a solid flat surface.

- The hose has to be laid with a constant fall from the sampler to the sampling point as lower

lying points can lead to deposits in the hose which may freeze in winter or result in cross­contaminations.

- To fix the suction hose, we recommend to use the extraction unit available as accessory.

- Immerse the end of the hose at the sampling point with the open end facing downstream

(direction of flow) so that coarse matter and fibres cannot be forced into the suction aperture

Mains connection / external power supply

A battery charger (option) is available to charge the battery.

Mains powered float charge option

The integral storage battery can be charged by means of the mains powered battery charger. In case
of a higher energy demand, the battery charger can be permanently connected to the mains, so that
the integral storage battery of the sampler is left permanently on charge (float charge).

Integral storage battery

A fully charged battery will, under ideal conditions, be sufficient for up to 2000 sample extractions.

Charging the storage battery

The integral battery is a maintenance-free sealed lead-acid battery.
Charge the storage battery for at least 14 -16 hours prior to the first use.
This charging time is also necessary if the storage battery is empty. To avoid a total discharge,
a protective mechanism is built-in which automatically switches off the device when the voltage
is too low.
The storage battery cannot be overcharged as the battery charger switches to compensation charge
as soon as the battery is fully charged.
For longer periods of non-use, top up the charge regularly (connect the battery to the charger).
In any case, avoid a total discharge as otherwise the storage battery will be damaged.

Switch on / off

The device is switched on and off by the ON / OFF switch.
Option: mains operation. In case of exclusive mains operation, the device is switched on by means
of the mains plug of the battery charger.

Hose connection

The inlet hose is connected at the side of the housing upper part (screw thread ¾“).

Signal connections
The signal connector (e.g. for a flow meter) is in front of the control.

Connection to a PC

The sampler is connected to a PC by means of an interface cable (art. No. BM900021) which is
connected to the RS232 connector.

Page 13 Manual BÜHLER 2000/1029

Installation

Connections Bühler 2000

1. Input signals connector

2. Battery connector 12V/10 Ah

3. RS 232 interface

4. ON / OFF switch

Connections Bühler 1029

1. RS 232 interface

2. Input signals connector

3. Battery charger connector

4. ON / OFF switch

Page 14 Manual BÜHLER 2000/1029

Installation

Connector assignment – RS 232

(plug)

1 = Rx
2 = Volt-free
3 = Tx
4 = Volt-free
5 = Gnd

Connector assignment – input

signals (plug)

Pin assignment:
1 = Flow analogue +
2 = Flow analogue ­3 = COM
4 = Flow digital (pulse)
5 = Event
6 = Volt-free

Connector assignment – battery

connection (device)

Pin assignment:
1 = +
2 = ­3 = Volt-free
4 = Volt-free

Page 15 Manual BÜHLER 2000/1029

Installation

Connector assignment – message

• Message

Connection at relay as normally open or normally closed contact.

Troubleshooting - general

If a fault develops in your sampler, we can only provide prompt assistance if you give us the type
and serial number of the apparatus concerned. You will find these data on the type plate.
The more precise your description of the fault is, the better our fault diagnosis will be.

Symptom Possible cause Action

Check all fuses and replace
them if necessary

Charge battery for at least 14
hours

No function

Fuse defective

Battery discharged

Exhaustive discharge of battery Replace battery

Page 16 Manual BÜHLER 2000/1029

Operation

Sampling modes

Graphical representation of sampling modes TIME-FLOW-EVENT

Flow graph

Time­proportional

Flow­dependent

Event signal

Event­proportional

A sample is extracted in fixed
time intervals (e.g. every 10
minutes) with a fixed sample
volume (e.g. 50 ml).

A sample is extracted in
variable time intervals
(depending on the flow (Q))
with a fixed sample volume.

The sampler is waiting for an
event (e.g. the exceeding of
a pH limit value). A sample is
extracted in fixed time
intervals (e.g. every 10
minutes) with a fixed volume
(e.g. 50 ml) as long as an
event is present.

Page 17 Manual BÜHLER 2000/1029

Operation

Sampling modes

The following sampling modes can be programmed:

Sampling mode Description Example
Time-proportional In this sampling mode, the single

sample extractions as well as the
bottle change are effected in fixed
time intervals.

Flow-dependent

- digital

Flow-dependent

- analogue

In this sampling mode the sample
extraction is triggered by flow
pulses. The bottle change is
effected in fixed time intervals or
after a certain number of sample
extractions.

In this sampling mode samples are
extracted according to the analogue
flow signal (0-20 mA or 4-20 mA).
The sample extraction is started
when the programmed flow is
reached. Thus the interval between
the sample extractions varies
according to the flow signal. The
bottle change is effected in fixed
time intervals or after a certain
number of sample extractions.

Values to program:
sampling interval
e.g. 00:05 hh:mm

bottle filling time
e.g. 02:00 hh:mm

Values to program:
pulse divider
e.g. 100
(that means that a sample is extracted
after each 100th pulse).

Bottle filling time
e.g. 02:00 hh:mm
or
bottle change after X sample extrac­tions
e.g. 100

Values to program:
Flow per sample extraction
e.g. 1 m³

Bottle filling time
e.g. 02:00 hh:mm
or
bottle change after X sample ex­tractions
e.g. 100

Event-proportional In this sampling mode the sample

extraction is depending on an
external event signal (potential-free
make contact). The sample is only
extracted as long as the signal is
present. The sampling interval as
well as the bottle change is
programmed. The bottle is changed
at each new event signal.
If an event is longer than the
programmed bottle filling time, two
or more bottles will be filled for this
event.

Page 18 Manual BÜHLER 2000/1029

Values to program:
Sampling interval
e.g. 00:05 hh:mm

Bottle filling time
e.g. 02:00 hh:mm

Operation

Sampling system

Vacuum sampling system
Metering vessel -structure-

1. Hose connector

2. Flange

3. Screw cap

4. Electrodes

5. Volume control tube

6. Metering vessel

7. Silicone discharge tube

8. Motor-driven pinch-valve

9. Air connection

Cleaning:

- Glass metering vessel: unscrew the screw cap (3) and remove the flange. Now, the metering vessel

together with the silicone discharge tube (7) can be detached.

- Plastic metering vessel: Turn the plastic metering vessel anticlockwise (bayonet fitting) and remove.

Adjustment of sample shot volume at samplers with glass metering vessel:
To adjust the desired sample volume, loosen the knurled screw and displace the volume control tube
vertically.

Adjustment of sample shot volume at samplers with plastic metering vessel:
The sampler is always delivered with the volume control tube in full length.
To adjust the sample shot volume, the volume control tube (5) has to be cut
to length.

Procedure

1. There is a graduation in millilitres on the volume control tube.

2. Remove the metering vessel (6).

3. Cut the volume control tube to the desired length with scissors or a knife.

4. Reinstall the metering vessel (6) and tighten.

5. Check the sample volume by starting a manual sample extraction.

6. Now the device is ready for operation.

Remark: If you need to work with different sample volumes, you can cut to

size several tube pieces. As the volume control tube (5) is only
slipped on the hose connector (1), it is very easy to change the tube.

Page 19 Manual BÜHLER 2000/1029

Operation

Operation principle:

1. Inoperative
position

Replacement of the silicone discharge hose
The silicone hose (BM69301) is only pushed over the lip of the metering vessel. A hose clamp is not
required. Humidify the hose a little bit, fix it at one point and push it over the lip.

Remark:
Do only use original spare parts from the manufacturer. The use of a wrong hose type can lead to
malfunctions at the system or may even damage the pinch valve!

Remark:
Conductivity of the sample medium
There are two conductive level electrodes in the metering vessel. Their sensitivity can be adjusted in the
service menu. In the factory the electrodes are adjusted to tap water (this adjustment does not have to
be changed under normal operating conditions). Minimum conductivity 50 μS/cm.
Please note that a wrong adjustment can lead to a flooding of the pneumatic system and to the
damage of component parts.

The sampler is not suitable for extraction of distilled water due to low conductivity.

2. Pinch-valve
closes

3. Metering
vessel is filled
up to the
electrodes

4. Dosing system
is aerated

5. Pinch
valve
opens and
sample
drains off
in bottle

Conductivity at 25°C
Rain water 50 μS/cm
Drinking water 500 μS/cm
Waste water 5000 μS/cm (5 mS/cm)
Seawater 50000 μS/cm (50 mS/cm)

ATTENTION:
Wrong operating conditions can lead to malfunctions or may even damage the apparatus. No liability or
claims under guarantee will be accepted in respect of any damage arising from the non-observance of
these operating instructions.

Page 20 Manual BÜHLER 2000/1029

Operation

Troubleshooting – vacuum system

If a fault develops in your sampler, we can only provide prompt assistance if you give us the type and
serial number of the apparatus concerned. You will find these data on the type plate.
The more precise your description of the fault is, the better our fault diagnosis will be.

Symptom Possible cause Action

system flooded

Sampler does not extract
samples

pump

Adjustment of conductivity too
low. Distilled water has been
used as sample medium.

No contact to electrodes Check cable connection

System is leaking Check whether all hoses and

Pump/diaphragm defective Check pressure/vacuum of

Metering vessel not tight, no
vacuum

Filling level electrodes bridged Clean electrodes

Valve system/pinch valve does
not function correctly

Defective diaphragm Renew diaphragmNo pressure / vacuum at

Hoses are squeezed Check hoses

Contact service departmentElectrodes do not react,

connections are tight

pump
Check whether metering vessel

is tight (screw cap)

Check valve system/pinch valve
or contact service department

Page 21 Manual BÜHLER 2000/1029