Endres+Hauser Liqui-box a 2 / liqui 2 Portable water sampler Operating instructions

Brand: Endres+Hauser

Model: Liqui-box a 2 / liqui 2 Portable water sampler

Type: Operating instructions

liqui-box a 2 / liqui-compact a 2

Portable water sampler

Installation and operating instructions

BA 019R/09/e/10.95

Part No. 500 47779

Nothing beats know-how

Endress Hauser

LIQUI - BOX A 2 / LIQUI - COMPACT A 2

Portable water sampler

Installation and operating instructions

Please fill in and always give these details when reordering or on any queries:

Unit number ................................................................................

Date ................................................................................

Operator ................................................................................

 Wetzer Meßtechnik Printed in W. Germany

Modifications reserved

liqui-box a 2 / liqui-compact a 2

Complete delivery Check: That the delivery note and delivery contents correspond!

Delivery should include:

1 x liqui-box a 2 or liqui-compact a 2

1 x Mains cable or plug with 12 VDC version

1 x Signal plug

1 x Sample hose connection, elbow including

O-ring

2 x Wall fixing brackets (accessories) *

1 x Angle bracket (accessories) *

6 x Philips head screws DIN 7985 M4 x 8 V2A

(accessories) *

1 x Jubilee clip

2 x Short conductivity electrodes (accessories)

1 x Setting up instructions

Further accessories dependent on delivery note.

* = Not included in delivery of "liqui-compact a 2"

Transport insurance Check the package and contents for external damage.

Should there be any visible damage you should immediately inform both the

transport agency as well as your supplier. If this is not done any later claims

cannot be handled under the guarantee.

Please take note of the following characters:

Hint: Hints for better installation.

Attention: Ignoring this note can lead to damage of the

device or faulty operation.

Danger: Ignoring this warning can lead to personal injury.

Should the "liqui-box a 2" be in storage for more than 6 months please take

note of the storage details in chapter

"Maintenance, general".

liqui-box a 2/liqui-compact a 2 Please note

Construction and operating elements

Operating elements and display

10 9 8

76543

22 21 20 19 11

liqui-box a 2/liqui-compact a 2 Construction and operating elements

"liqui-box a 2" construction A Carrying handle

B Display and operating components

C Power supply socket

D Elbow connector (for suction hose)

E Signal in and output socket

F Hose clamp

GDosing system

K Housing

L Lead sealing opening

MLegend plate (unit number, supply voltage, power consumption

of functional module)

Operating elements and

display 1 MAN-push button: Immediate sample start

2 AUT-push button: Automatic sample sequence start

3 ON-push button: Switches unit on

4 OFF-push button: Switches unit off

5 ⇐ push button: Operation mode selection

6 - push button: Reduce target value

7 + push button: Increase target value

8 INFO- display field: Information (pump running times etc.)

9 TEMP- display field: Cabinet temperature display

(only on heater option)

10 IMP- display field: Quantity proportional sampling

11 TIME- display field: Time proportional sampling

12 PRESET Sample and temperature target values

13 SAMPLE Sample selection (heading)

14 Sampling display fields (total)

15 STATUS Sample and temperature actual values

16 ⇐ push button Operation mode selection

17 + push button Increase target value

18 - push button Reduce target value

19 INFO- display field: Information (samples not taken)

20 END- display field: Sample sequence end or continuous

operation

21 SUM- display field: Number of samples per container

22 TIME-display field: Fill time per container

23 STATUS Actual value for sample sequence end

24 PRESET Target value for sample sequence end

25 DISTRIBUTION Sample distribution (heading)

26 Sample sequence end and distribution display fields (total)

liqui-box a 2/liqui-compact a 2 Construction and operating elements

Page

Please note:

- If the delivery is complete

- Transport insurance

liqui-box a 2

- Construction, - dimensional drawing

General notes 2

- Safety 2

Mechanical installation 3

- General 3

- Wall mounting 3

- Drilling template 3

- Stand mounting (option) 4

- Suspension system (option) 4

- Hose connection/installation 5

- Fixing sample outlet hose 5

Electrical installation 6

- Power supply 6

- Mains AC version 6

- DC Version 6

- Option “Battery pack/charger” 6

- In / outputs 7

- Signal plug connections 7

- Outputs 7

- Inputs 7

- Connection examples 8

- Signal input 8

- Alarm output 8

- What happens on power up ? 8

Operating components and

setting up principle 9

Page

What can the “liqui-box a 2” do ? 10

Sampling principle 10

Setting up sample volume 11

Methods of sampling 15

- Manual sampling 15

- Time proportional 15

- Setting up sample sequence end 16

- Example 17

- Quantity proportional 18

- Example 19

- Event controlled sampling 19

- Countdown for sample

sequence start 20

- Changes during operation 20

- Heater 20

Additional information 21

- Information that can be called up 21

- Faults 21

- Number of not taken samples 21

Maintenance 22

- General 22

- Repairs 22

Problems and solutions 23

- Fault messages 23

- Spare parts 25

Technical data 26

Appendix: LIQUI-COMPACT A 2

liqui-box a 2/liqui-compact a 2 Contents

Safety This unit is constructed and tested according to EN 61010-1 /

VDE 0411 Part 1 and left our works in perfect and safe condition. In order to

maintain this condition and operate safely the user must take note of the

following safety information and warnings contained in these instructions.

First check that the power supply to be used corresponds with that on the

unit legend plate.

This unit is supplied with a loose power cable including plug and socket

arrangement and is therefore classified to protection class I.

The power supply plug must only be connected to a socket with an earth

protection connection. This protection must be continued when using

extension leads. Any breakage of the earth conductor within or outside the

unit or loosening the earth connections can make the unit potentially

dangerous. Intentional disconnection or an open circuit of this earth

connection is not permissible.

There are no components in the unit that can be repaired by the user. All

repairs must be made by trained service personnel.

Removing covers or components, except where this can be done by hand,

must only be carried out by skilled personnel.

If it is assumed that the unit cannot be safely operated it must be

immediately taken out of operation and secured against unintentional use.

It can be assumed that the unit cannot be safely operated,

- if the unit is visibly damaged

- if the unit no longer operates

- if the unit has been in storage under adverse conditions for a longer

period of time

- after long transport under adverse conditions.

The manufacturer does not accept liability for any damage that has been

made due to the unit not having been used in accordance with these safety

instructions.

liqui-box a 2/liqui-compact a 2 General notes

GeneralThe ”liqui-box a 2” should be installed in an area where there is no

additional heating from external sources (eg. radiators etc.). Protect the unit

from direct sun rays. Do not install the "liqui-box a 2" close to producers of

large magnetic fields (eg. motors, transformers etc.). Do not install the

"liqui-box a 2" in areas where it can be subject to high mechanical vibration.

When transporting the "liqui-box a 2" please avoid heavy shocks.

The suction hose must be laid in such a way that it always rises from the

sampling point to the "liqui-box a 2"! Syphons must be avoided between

the sampling point and sampler! The "liqui-box a 2" must not be

connected to a pressurised system! For sample less than 2 m we

recommend using a 15mm hose. Both 13mm and 15mm connections are

delivered. The liquid conductivity must not be less than 30 microsiemens!

Maximum height difference: 6m between sampling point and

"liqui-box a 2".

Maximum sampling hose length: 30m

Always mount the sampler upright, do not tilt !

In order to connect the suction hose to the sampler use the jubilee clip

supplied.

The suction hose must be a spiral reinforced type

Wall mounting

(not for liqui-compact a 2)

Fix the wall mounting brackets ➁ and angle bracket ➃ to the rear wall of the

unit ➀ using the screws ➂ supplied.

Drilling template

(hole dia. 7.5mm)

➁

➀

➂➃

➂

liqui-box a 2/liqui-compact a 2 Mechanical installation

Stand mounting (Option)

➊ All weather roof (accessories)

➋ "liqui-box a 2"

➌ Battery pack (Option with "liqui-box a 2" 12 VDC version)

➍ Mounting bracket

➎ Sample outlet hose

➏ Composite container (accessories)

➐ Legs (3)

Construct stand as shown in diagram. Use wing nuts supplied to secure

components.

If required connect battery pack with "liqui-box a 2".

Suspension unit with

composite container (Option)

➊ Suspension system ➋ Mounting bracket ➌ Battery pack (12 VDC option)

➍ Liqui-box a 2 ➎ 14 l container.

liqui-box a 2/liqui-compact a 22 Mechanical installation

Fix suction hose

➀ = Nut

➁= Suction hose connector elbow

➂ = Suction hose

➃= Jubilee clip

➄ = O-Ring

➅= Nipple

What to do:Loosen ➀

Pull off ➅

Plug ➂ into ➃

Push approx 3 cm over ➁ and secure with ➃

Check that ➄ is correctly positioned inside ➅

Tighten ➀ on ➅

Note

The spiral strengthened suction hose is normally supplied by the user

(maximum length 30 metres).

It is not within the normal delivery conditions.

liqui-box a 2/liqui-compact a 2 Mechanical installation

Power supply Plug in the mains plug into socket C and tighten using nut.

Mains version (AC)

Plug connections:Numbers are engraved on the plug

1= Black(L), 2 = free, 3 = Blue(N) = Green/yellow (PE)

Direct current version (12 VDC) After having connected a 12 VDC power supply (see connections). Connect

the 4 pole plug to the socket C and tighten using nut.

Connections:

1=free

2 = Plus pin

3=free

= Minus pin

Always maintain the batteries used (i.e. regularly charged, recharge

straightaway after long term use). Please take note of safety notes in

separate instructions ! Disconnect "liqui-box a 2" from battery pack when

storing. Store battery pack in a cool area and recharge at least every 6

months.

Option "Battery pack / charger"

"liqui-box a 2" 12 VDC: Follow connection diagram on the battery pack housing. Make connections !

liqui-box a 2/liqui-compact a 2 Electrical installation

In/outputs

Signal socket connections

(Signal socket E)

White = 1 = Auxiliary voltage (-)

0V (common)

Brown = 2 = Auxiliary voltage (+)

8 to 19 V output

Green = 3 = Flow impulse input

Yellow = 4 = External stop input

Grey = 5 = Do not connect

Pink = 6 = Alarm output

Blue = 7 = Sample sequence

end output

Red = 8 = do not connect

Cable type LiYY8 core

(approx.1,5 m long)

Single cores x 0,23 / 0,25

Outputs2 outputs for alarm and sequence end are available from the controller.

These are in the form of an open-collector output and are not switched

when active (in alarm) or during a power failure.

Sequence endSequence end is signalled:

●When the preset sampling sequence has finished.

●On power failure.

●Sequence end is de-activated once a new sampling

sequence programme is started.

AlarmThe output signals alarm, fleeting contact ≥ 30sec. :

●If a fault occurs during sampling.

●The respective error message appears on the display.

●See chapter “Problems and solutions”.

Inputs

Flow1 Impulse input (opto-coupler) max. 25Hz. For connection to an external

quantity measurement).

External stop1 Stop input (opto-coupler). A voltage of between +7 to +27 Volts on the

input stops all "liqui-box a 2" functions.

0 to +3 Volts initiates restart of the unit (The status display restarts at

zero and the next sample is taken once the target value is reached). For

further description of this function see chapter "Interrupt / restart

sample cycle".

150 cm.

liqui-box a 2/liqui-compact a 2 Electrical installation

Connection examples Alternatives: In example "Flow input".

Input

Output Alternatives: In example "Alarm output"

What happens on power up ? a) The display shows "INIT", unit does a self-check (start up). Display

shows "OFF", start “liqui-box a 2” by operating push button "ON".

b) Sort power failures (up to approx. 500 hours). The "liqui-box a 2"

continues to operate normally. Longer loss of power leads to resetting the

unit as described under "a)".

c) Only when using "liqui-box a 2" in 12 VDC version ! When connection

operational voltage (12 VDC power source, accumulator or battery) to the

unit the display shows "EOA Akku". This must be acknowleged by

operating the "OFF" followed by the "ON" push button.

Imax=50mA

Imax=50mA b

a: Using an external voltage source b: Using the internal auxiliary voltage

liqui-box a 2/liqui-compact a 2 Electrical installation

Operating elementsSee drawings at the front of these instructions

("Operating components and display")

Operating principle

"ON" push button

Push button ”ON” (3) activates the

"liqui-box a 2"

controller

- The display shows the last operation

sequence values.

"OFF" push buttonPush button "OFF" (4) switches the

"liqui-box a 2"

off.

- The display (14) shows "OFF"

” ⇐” push buttonPush buttons ” ⇐” (5 and 16) change the mode of operation

- Display arrowhead ▼ changes to the next field.

- Display arrowhead ▼ flashes for a few seconds,

then the new settings are accepted (always wait

for the arrowhead to stop flashing).

"+" and "-" push buttonsPush buttons ”+” (7 and 17) and ”−” (6 and 8) change the target

value (12 and 24)

- Simultaneous operation of "+" and "−" changes

the display to auf 0001 (Reset).

- If the target value is changed the arrowhead ▼

flashes.

- Once the arrowhead ▼ is stable the new values are

accepted and stored.

"AUT" push buttonPush button ”AUT” (2) starts an automatic sampling sequence.

Count down"Count down" to sample sequence starts:

If the "AUT" (2) push button is operated for more than approx. 5 seconds a

preset counter appears in the display. Once this counter has been set the

arrowhead ▼ flashes.

Once the arrowhead is stable the counter counts down in a minute cycle.

The sampler is now blocked. Once 0000 is reached the sampler starts

automatic sample operation using the preset sampling data.

"MAN" push buttonPush button "MAN" (1) initiates an immediate sample cycle.

liqui-box a 2/liqui-compact a 2 Operating elements and principle

Sampling principle

Vacuum principle

4 The hose clamp is released

and the sample flows into

the composite container or

bottles if operating using

sample distribution.

3 The sample is now dosed to

the preset volume (VP). This

is dependent on the dosing

tube position (D). Excess

liquid flows back to the

sampling point due to a

syphonic effect.

1 The dosing system is

pneumatically sealed at the

beginning of each sample

cycle. The diaphragm pump

then blows the suction hose

free of obstructions via the

dosing chamber

2 A fresh sample is then

sucked into the dosing

chamber until the

conductivity level switch is

activated (sensors in the

dosing chamber flange)

liqui-box a 2/liqui-compact a 2 Sampling principle

Varying sample volumeFollow the next steps.

1. Open controller doorLift the catch on the left side of the

unit forwards

2. Switch unit offOperate the - OFF- (4) push button

at the "liqui-box a 2".

Dosing system:

➀ = Elbow ➁ = Dosing tube

➂ = Dosing chamber ➃ = Piping clamp

3. Remove air hose

liqui-box a 2/liqui-compact a 2 What can the liqui-box a 2 do ?

4. Remove dosing system Lift clamp from pipe elbow.

Pull dosing system forwards and

remove from controller.

5. Remove flange Release the bayonet fitting by turning

the lower part of the flange as shown.

Remove the flange from the dosing

chamber.

6. Set sample volume Set the dosing tube to the required

sample volume by pushing it in or out.

Take note of the engraved quantities

on the tube. (The further the tube is

pulled out of its retainer the smaller

the sample volume)

(Only move the dosing tube. NEVER

loosen the nut and NEVER move the

upper elbow.)

Use the following calculation in order to avoid overfilling the sample

containers:

Preset sample volume x number of samples = Container volume

300

350

400

450

500

liqui-box a 2/liqui-compact a 2 What can the liqui-box a 2 do ?

7. Dosing system

➀ = Nipple

➁ = Suction pipe elbow

➂ = Hose clamp

➃ = Contacts

➄ = Spring contacts

➅ = Fixing clamp

➆ = Silicon hose

●Push silicon hose ➆ into the hose clamp ➂.

●Push suction pipe elbow ➁ onto the nipple ➀. (Make sure that the

spring contacts and flange contacts are made).

●Push fixing bracket ➅ downwards.

"The contacts ➃ and contact springs ➄ must be made

(otherwise faults can occur).

We cannot be held responsible for damage caused by not complying with

these instructions !

8. Replace air hose

liqui-box a 2/liqui-compact a 2 What can the liqui-box a 2 do ?

Setting up example

Time proportional sampling. Requirement:

Composite sample with sample cycle intervals of 10 min.

Switch unit on by operating the ”ON” push button.

Using the ⇐ push button select ”TIME”.

Set 0010 using the - and/or + push buttons.

Sample sequence end ? Without sample sequence end (continuous operation)

Using push button ⇐ select ”END”.

Set ”OFF” using the - and/or + push buttons.

Start the sequence by operating the ”AUT” push button.

Or: Sample seuquence end after

24hours

Using push button ⇐ select ”END”.

Set ”ON” using the - and/or + push buttons.

Using push button ⇐ select ”TIME”. Set ”1440min” using the - and/or +

push buttons. Start the sequence by operating the ”AUT” push button.

Or: Sample sequence end after

150 samples

Using push button ⇐ select ”END”.

Set ”ON” using the - and/or + push buttons.

Using push button ⇐ select ”SUM”. Set ”0150min” using the - and/or +

push buttons. Start the sequence by operating the ”AUT” push button.

0010

0000

0150

0000

OFF

1440min

0000min

liqui-box a 2/liqui-compact a 2 What can the liqui-box a 2 do ?

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Endres+Hauser Liqui-box a 2 / liqui 2 Portable water sampler Operating instructions

Endres+Hauser Liqui-box a 2 / liqui 2 Portable water sampler Operating instructions

Endres+Hauser Liqui-box a 2 / liqui 2 Portable water sampler Operating instructions

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