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Instruction Manual PCD 650
20
2.2.16 Linear temperature Coefficient
The temperature coefficient is a value that reflects the degree to which the
conductivity is affected by temperature changes. If you do not know the
temperature coefficient of your solution you can determine the correct value
using the formula on page 106 “Calculating Temperature Coefficients”.
NOTE: Your meter is factory set to a temperature coefficient of 2.1% per °C.
2.2.17 Pure Water Coefficient
Pure water coefficient will be calculated and applied automatically for ultra
pure water measurement if ‘ENABLE’ at appropriate set up pages.
For more information regarding pure water coefficient, please refer page 86.
2.2.18 Set Salinity
This option allows you to set the salinity (in ppt) for your solution, as the
dissolved salts alter the relationship between the partial pressure of oxygen
and the oxygen concentration in water. By setting the salinity, the meter will
compensate for the impact of salinity on the partial pressure/oxygen
concentration relationship of your sample. The salinity can be set from 0 to
50 ppt.
2.2.19 Auto Salinity Compensation
If auto salinity comp. is enabled, the meter will automatically compensate for
salinity for determining dissolved oxygen concentration of the sample. Auto
salinity compensation will be applicable only in multi measurement mode and
only if one of the measurement selected is conductivity related. This option
is activated only in CD650 & PCD650. Otherwise, manually set salinity
value will be applied.
2.2.20 % Saturation Offset Adjustment
This option lets you offset meter’s value when cross referenced with another
DO meter. The PCD 650 meter allows to adjust % saturation offset calibration
within +/- 10.0% offset.
Note: When a user calibration is done, the offset will be reset to zero.
2.2.21 Set barometer pressure range and barometric pressure units
The PCD 650 meter is capable of measuring barometric pressure with its
built-in pressure sensor. In the event, the pressure reading is inaccurate, you
can calibrate the value from the setup menu. For setting barometric pressure
range, please refer page 94.
2.2.22 Pressure compensation
If pressure comp. is set to ‘ENABLE’, the meter will compensate for the
barometric pressure at the location depending on the altitude.
For example, if the barometric pressure is 700 mmHg the full scale calibration
would be done at 92.1%. This is relative to the pressure at sea level.
- WP PCD 650 1
- Preface 3
- Table of Contents 5
- 1. Getting Started 9
- 1.2 Display & Keypad 10
- 1.3 Inserting Batteries 12
- 1.4 Attaching Safety Belt 14
- 1.5 Connecting Peripherals 15
- 2. Measurement Mode 23
- Figure 17: Invalid key 24
- 2.2 Taking Measurement 25
- Figure 18: Under range 26
- Figure 19 : Hi alarm 26
- 2.3 Multi Display mode 30
- 2.4 pH Measurement Mode 31
- 2.5 mV Measurement Mode 32
- 2.6 Ion Measurement Mode 33
- 2.8 TDS Measurement Mode 35
- 3. Calibration Mode 47
- 3.2 Temperature Calibration 52
- 3.3 pH Calibration 54
- 3.4 mV Calibration 59
- 3.5 Ion Calibration 61
- 3.6 Conductivity Calibration 63
- 3.7 Resistivity Calibration 67
- 3.8 Salinity Calibration 69
- 3.9 TDS Calibration 71
- 4. Setup Mode 79
- 4.2 System Setup 83
- 4.3 pH Setup 90
- 4.5 Ion Setup 93
- 4.6 Conductivity Setup 94
- 4.7 TDS Setup 96
- 4.8 Salinity Setup 98
- 4.9 Resistivity Setup 100
- % - DO Saturation Setup 102
- Instruction Manual PCD 650 104
- 4.12 Temperature Setup 106
- 5. Technical Specifications 107
- Salinity 108
- Resistivity 108
- PCD 650 108
- TDS at TDS factor 1.000 108
- 6. Accessories 110
- 7. APPENDIX 112
- 7.4 Dissolved Oxygen Probe 115
- Figure 93: Use Tool to take 117
- 8. General Information 118
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