Metrohm 711 Liquino User Manual

Page 20

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2.5 Connections

711 Liquino, Instructions for use

14

Example of a sample changer method:

>st ar t sequence

1 CTL: Rm: I NI T

>sampl e sequence

1 CTL: Rm: START devi ce1

2 SCN: Rm: r eady1

3 Li f t : 1: shi f t mm

4 CTL: Rm: * * * * * * * * * 1* * * *

5 Wai t 1 s

6 CTL: Rm: * * * * * * * * * 0* * * *

7 Move: 1: sampl e

8 Li f t : 1: wor k mm

9 CTL: Rm: * * * * * * * * * 1* * * *

10 Wai t 1 s

11 CTL: Rm: * * * * * * * * * 0* * * *

12 SCN: Rm: r eady1

13 Move: 1: spec. 1

14 Li f t : 1: wor k mm

15 CTL: Rm: * * * * * * * * * 1* * * *

16 Wai t 1 s

17 CTL: Rm: * * * * * * * * * 0* * * *

18 SCN: Rm: end1

19 St i r : 1: ON s

20 CTL: Rm: START devi ce2

21 SCN: Rm: end2

22 St i r : 1: OFF s

23 Pump: 1. 1: 12 s

24 Pump: 1. * : 10 s

25 Pump: 1. 1: 12 s

28 NOP

>f i nal sequence

1 Li f t : 1: shi f t mm

2 NOP

← Initialize remote interface

← Start Liquino (PIP mode)

← Wait for pipetting step

← Lift out of sample vessel

← Switch pipetting further (corresponds to
<ENTER>)

— separating bubble is aspirated —

← Reset remote interface

← Position sample beaker

← Immerse pipet tubing in sample

← Switch pipetting further (corresponds to
<ENTER>)

— sample is aspirated —

← Reset remote interface

← Wait for next pipetting step

← Move to titrating beaker

← Pipet tubing in titrating beaker

← Switch pipetting further (corresponds to
<ENTER>)

— sample is ejected —

← Reset remote interface

← Wait for end of PIP mode

← Stirrer on

← Start Titrino

← Wait for end of determination

← Switch off stirrer

← Aspirate titration beaker

← Rinse titration beaker

← Aspirate titration beaker



711 Liquino – 731 Relay Box – 772 Pump Unit – Heating Bath

Liquino with 772 Pump Unit as delivery or aspiration pump and a heating
bath.


711

731

772


With the aid of a Metrohm 731 Relay Box the output leads of the 711 Liquino
can be monitored and, according to their line conditions, two low-voltage
d.c. voltage outputs and two mains voltage outputs can be switched.

In this way the heating bath can be switched automatically via the tempera-
ture monitoring function. If the measured temperature falls below a certain
value the bath is heated up.

A connected pump (e.g. the Metrohm 772 Pump Unit) can be selectively
switched on or off during the method procedure.

cable
6.2125.100

Dosinos

heating bath

mains cable

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