Metrohm 789 Robotic Sample Processor XL - Manual (Page 143)

6.2 Standard methods
Metrohm Sample Processor, Annex 135
2 MOVE 1 : sample
3 LIFT: 1 : work mm
4 STIR: T1 : 10 s
5 CTL:Rm: METER mode pH
6 CTL:Rm: START device1
7 SCN:Rm : End1
8 SHIFTRATE:- 20
9 MOVE 1 : spec.3
10 LIFT: 1 : work mm
11 PUMP 1.* : 4 s
>final sequence
1 MOVE 1 : spec.3
2 LIFT: 1 : work mm
>changer settings
rack name: *
lift rate T1 25 mm/s
lift rate T2 25 mm/s
shift rate 20°/s
shift direction: auto
swing rate T1 55°/s
swing rate T2 55°/s
on beaker error: MOVE
>stirring rates
>Dosing unit def.
>timeout settings
SCAN timeout: OFF min
on SCAN timeout: error
>manual stop
CTL Rmt: STOP device*
CTL RS232:
PUMP: OFF
STIR T1: cont.
STIR T2: cont.
STIR MSB1: cont.
STIR MSB2: cont.
STIR MSB3: cont.
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- Move to sample
- Immerse electrode
- Stir for 10 seconds
- Switch pH meter to measure
- Start measurement
- Wait for measurement
- Rack rotation direction clockwise
- Move to rinse beaker
- Lower electrode
- Rinse electrode and beaker
- Move to rinse beaker
- Lower electrode
Changer settings
Stirring rates
Settings for dosing device
Actions after manual stop
- Stop pH meter
- Pump off
6.2.5 Std_add
This is a universal method for automated ion measurements directly in
the sample beaker.
Required instruments and cables:
• Metrohm 692 Ion Meter oder 781 Ion Meter with 6.2148.010 Remote
Box
• Metrohm 802 Propeller Stirrer or 741 Magnetic Stirrer
• 6.2141.020 Remote cable
The method can be used with or without a 786 Swing Head on the
Sample Processor.
Special features:
After each measurement the electrode is rinsed in the sample beaker at
the rinse position. Internal or external pump required for rinsing.
789 Sample Proc. XL 11122 5.789.0011
parameters
method std add
number of samples: rack
>start sequence
1 CTL:Rm: INIT
- Report header with device ID and program version
- Method name
- No. of samples (here whole sample rack)
- Initialize Remote interface