Metrohm 781 pH/Ion Meter Bedienungsanleitung Seite 81
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6 Methods / Parameters
780/781 pH/Ion Meter, Manual
71
6.5 Direct ion measurement (781 only: Conc
mode)
6.5.1 Type of measurement
PARAMETER Conc
├ meas.type
:
The type of measurement describes the analytical principle of ion
measurement.
meas.type: direct, std.add, smpl.add
In general a differentiation is made between direct measurement and
the standard or sample addition methods. The selection of the method
parameters depends on the measurement type which has been cho-
sen. All the method parameters for
direct ion measurement
are de-
scribed in this section. The descriptions of the
ion parameters,
measuring parameters and calculation parameters which this
section contains also apply to the
standard addition
and
sample additi-
on
types of ion measurement. As a result the following explanation of
the parameters for the standard and sample addition in Section
6.6 is
limited to the specific method parameters.
Please note that changing this Conc parameter
meas.type
does not in-
clude a change of the current method. Within the mode Conc a method
contains all parameter settings.
6.5.2 Ion parameters
PARAMETER Conc
:
├ ion parameters
: ├ ion type
├ ion name
├ ion charge
└ conc.unit
The ion parameters describe the name, charge and concentration units
of the ion to be determined.
Ion: Ag(+1), BF4(-1), Br(-1), Ca(+2), Cd(+2),
Cl(-1), CN(-1), Cu(+2), F(-1), I(-1), K(+1),
Na(+1), NH4(+1), NO2(-1), NO3(-1), Pb(+2),
S(-2), SCN(-1), SO4(-2), own
The name of the analyte can be selected here. The additional option
'
own' allows the analyte to be determined to be given its own name
and charge:
ion name 7 ASCII characters
ion charge -9...-1, 1...9
- 8.781.8002EN / 2014-07-31 1
- Table of contents 5
- List of illustrations 9
- 1 Introduction 11
- 1.2 Parts and controls 13
- 1.4 Safety information 16
- 2 Installation 17
- 2.3.5 Connecting a printer 23
- 2.3.6 Connecting a computer 25
- 2.5 Mains connection 27
- 2.6 Switch on 27
- 2.7 Initial configuration 28
- 3 Short operating tutorial 29
- 3.1.3 pH calibration 30
- STI RRER 32
- 781: Conc mode) 33
- 4 Operation 41
- 4.2 Operating concept 42
- 4.4 Operating principles 48
- 4.4.3 Entering text 49
- 4.4 Operating principles 50
- 5 Configuration 51
- 5.1 Report 52
- FIG/auxiliaries/device label 53
- PARAMETERS/measur 56
- 5.3 Storing measured values 57
- 5.4 Auxiliaries 58
- 5.5 Monitoring 61
- 5.6 Peripheral units 62
- 5 Configuration 63
- 5.7 RS232 settings 64
- 6 Methods / Parameters 65
- OFF' is entered with 70
- buffer 70
- OFF, ON 71
- -2200.0...0.0...2200.0 mV 71
- 6.3.2 Limits T 76
- ├ limits T 76
- : └ state 76
- FIG/report 77
- 6.4.2 Limits U 79
- ├ limits U 79
- : └ 79
- Reset cal., see Sec 82
- RAMETERS Conc/limits Conc 83
- )old(valueMeasured 85
- 6.5.6 Limits Conc 87
- ├ limits Conc 87
- CONFIG/print meas 88
- FIG/Report 93
- 7 Various functions 95
- ADD. DATA 103
- PARAMETER 105
- Conc/calculation parameters 105
- 7.2 Reports 106
- 7.2.2 Report identification 109
- CAL. DATA 111
- 7.2.6 Configuration report 113
- 7.2.7 Parameter report 114
- M ET HODS 116
- 7.3 Measured values memory 117
- CONTRAST+ 118
- CONTRAST 118
- 7.4 Limit monitoring 119
- 7.4.2 How it functions 120
- 7.5 Setup 121
- Maintenance 123
- 8.2 Messages 125
- 8.3 QM support 130
- 8.4 Validation 132
- 8.4.2 Wet tests 133
- 8.5 Diagnosis 134
- EL. T EST 136
- 8.6.2 Procedure 137
- 8.6.3 Results 139
- 8.6.4 Messages and measures 141
- 8.6 pH electrode test 144
- 9 Annex 145
- 9.1.4 Interfaces 146
- 9.1.5 Power supply 146
- 9.2 Evaluation 148
- 3-Point 149
- )blank(cclog 152
- 9.2.3 Addition method 153
- 9.3 Menu structures 154
- Pt1000 155
- NTC ┬ R(25 °C) 155
- ON ┬ time interval 155
- ON ─ next service 155
- 9.3 Menu structures 156
- ─ ON ── reference 157
- ───┬ min.conc 158
- 9 Annex 159
- 9.4 Stored buffer series 160
- 9.4 Stored buffer series 162
- 9.5 Remote box 166
- 9.6 Accessories 168
- 9.7 Warranty (guarantee) 170
- 9.7 Warranty (guarantee) 172
- 10 Index 173
- 10 Index 175
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