Hach Sension 156 Bedienungsanleitung

Cat. No. 54650-18

Portable Multiparameter

Meter Manual

TABLE OF CONTENTS

SAFETY PRECAUTIONS ....................................................................................................... 7

SPECIFICATIONS.................................................................................................................... 9

OPERATION........................................................................................................................13

SECTION 1 INTRODUCTION...................................................................................... 15

1.1 Unpacking the Instrument................................................................................................. 15

1.1.1 Standard Accessories............................................................................................... 15

1.1.2 Optional Accessories............................................................................................... 16

1.2 Keypad Description........................................................................................................... 16

1.3 Screen Description and Layout......................................................................................... 18

1.4 Maintenance...................................................................................................................... 20

1.5 Audible Signals................................................................................................................. 20

SECTION 2 INSTRUMENT SETUP............................................................................ 21

2.1 Instrument Description...................................................................................................... 21

2.2 Power Connection ............................................................................................................. 21

2.2.1 Using the Docking Station as a Power Source ........................................................ 21

2.2.2 Docking Station Connections.................................................................................. 23

2.2.3 Using Batteries as a Power Source.......................................................................... 23

2.3 Probe Connections............................................................................................................. 24

2.3.1 Switching Between Conductivity and Dissolved Oxygen Modes........................... 24

2.3.2 Attaching the Probe Holder to the Instrument......................................................... 25

2.4 Turning the Meter On........................................................................................................ 25

2.5 Setup Menu Features Common to All Parameters............................................................ 25

2.6 Printer and Computer Connections................................................................................... 26

2.7 Automatic Shut-off Function ............................................................................................ 26

2.8 Display Backlight.............................................................................................................. 26

SECTION 3 pH OPERATION MODE......................................................................... 27

3.1 pH Setup Menu Options.................................................................................................... 27

3.2 How to Change the pH Menu Options.............................................................................. 28

3.3 pH Calibration................................................................................................................... 30

3.3.1 Performing a Calibration Using Automatically Recognized Buffers...................... 30

3.3.2 Performing a Manual Calibration............................................................................ 31

3.3.3 Reviewing the Calibration....................................................................................... 32

3.4 Measuring Samples........................................................................................................... 33

3.5 Millivolt Measurement...................................................................................................... 33

TABLE OF CONTENTS, continued

SECTION 4 CONDUCTIVITY OPERATION MODE............................................ 35

4.1 Conductivity Setup Menu Options ................................................................................... 35

4.2 How to Change the Conductivity Menu Options.............................................................. 38

4.3 Conductivity Calibration................................................................................................... 39

4.3.1 Calibrating with a Known NaCl Standard............................................................... 40

4.3.2 Calibrating with a Known KCl Standard ................................................................ 41

4.3.3 Calibrating by Adjusting the Cell Constant ............................................................ 41

4.3.4 Reviewing Calibrations........................................................................................... 42

4.4 Measuring Conductivity ................................................................................................... 43

4.4.1 Measuring Low Levels of Conductivity.................................................................. 43

4.5 Measuring Total Dissolved Solids.................................................................................... 44

4.6 Measuring Salinity............................................................................................................ 44

4.7 Substances that May Affect Measurement ....................................................................... 45

4.8 Common Conversion Factors............................................................................................ 45

4.9 Theory of Conductivity Measurement.............................................................................. 46

SECTION 5 DISSOLVED OXYGEN OPERATION MODE.................................. 49

5.1 Dissolved Oxygen Setup Menu Options........................................................................... 49

5.2 How to Change the Dissolved Oxygen Menu Options..................................................... 49

5.3 DO Probe .......................................................................................................................... 50

5.3.1 Probe Assembly....................................................................................................... 50

5.4 Dissolved Oxygen Calibration.......................................................................................... 52

5.4.1 Probe Polarization................................................................................................... 52

5.4.2 Zeroing the Probe.................................................................................................... 53

5.4.3 Calibration in Water Saturated Air.......................................................................... 54

5.4.4 Calibration to a Known Dissolved Oxygen Concentration..................................... 55

5.4.5 Calibrating a Sample to Read 100% Saturation...................................................... 56

5.4.6 Calibration Review.................................................................................................. 57

5.5 Measuring Dissolved Oxygen........................................................................................... 58

5.5.1 General Probe Operation......................................................................................... 58

5.5.2 Dissolved Oxygen Measurement ............................................................................ 58

5.5.3 Probe Storage .......................................................................................................... 59

5.5.4 Maintenance............................................................................................................ 60

5.6 Using the BOD Accessory Kit.......................................................................................... 60

5.7 Making BOD Determinations........................................................................................... 61

5.8 Measuring Dissolved Oxygen in Water (0 to 20 mg/L).................................................... 61

5.9 Salinity Correction Factors............................................................................................... 66

5.10 Pressure Conversions...................................................................................................... 67

TABLE OF CONTENTS, continued

SECTION 6 STORING AND RECALLING DATA.................................................. 69

6.1 Storing Measurements....................................................................................................... 69

6.2 Recalling Stored Data........................................................................................................ 70

6.2.1 pH Data.................................................................................................................... 71

6.2.2 Conductivity Data.................................................................................................... 71

6.2.3 Dissolved Oxygen Data........................................................................................... 72

6.3 Erasing Data...................................................................................................................... 72

6.3.1 Erasing Single Data Points ...................................................................................... 72

6.3.2 Erasing Multiple Data Points................................................................................... 73

SECTION 7 PRINTING AND DATA TRANSFER................................................... 75

7.1 Connecting to Printers/Computers.................................................................................... 75

7.1.1 RS232 Cable Description ........................................................................................ 75

7.1.2 Connecting to a Printer............................................................................................ 75

7.1.3 Connecting to a Personal Computer........................................................................ 77

7.1.4 Using HachLink™ Communications Software with a PC ...................................... 78

7.2 Sending Data to Printers/Computers................................................................................. 78

7.2.1 Sending Currently Displayed Data.......................................................................... 78

7.2.2 Sending Recalled Data Points.................................................................................. 78

7.2.3 Sending Multiple Data Points.................................................................................. 79

7.3 Printed Data Formats......................................................................................................... 80

7.3.1 pH Printed Data Format........................................................................................... 80

7.3.2 Conductivity Printed Data Format........................................................................... 80

7.3.3 Dissolved Oxygen Printed Data Format.................................................................. 80

SECTION 8 TROUBLESHOOTING............................................................................ 81

8.1 Error Codes ....................................................................................................................... 81

8.2 Meter Service Request Questionnaire............................................................................... 82

GENERAL INFORMATION...........................................................................................83

REPLACEMENT PARTS AND ACCESSORIES.................................................................. 85

HOW TO ORDER................................................................................................................... 89

REPAIR SERVICE.................................................................................................................. 90

WARRANTY .......................................................................................................................... 91

CERTIFICATION ................................................................................................................... 93

SAFETY PRECAUTIONS

Section 2.2 Power Connection

Section 2.3 Probe Connections

Section 2.6 Printer and Computer Connections

Section 7.1 Connecting to Printers/Computers

SPECIFICATIONS

Specifications subject to change without notice.

General Specifications

Display: Custom LCD

Inputs:

(1) 5-pin Hach pH/mV/temperature probe connector

(1) 5-pin Hach conductivity or dissolved oxygen probe connector

Outputs: RS232 via Docking Station

Power requirements:

Meter: 4 AA alkaline batteries or via Docking Station

Docking Station: 6–12 V dc; use either Hach-supplied 115

or 230 V, 50/60 Hz external power supply or a

customer-provided supply with 50 mA output, 5.5-mm power

plug with a 2.5 mm center post (positive).

Input impedance: >10l2 ohms

Installation Category: II (for 115V and 230V external

power supplies)

Environmental Requirements: 0–50 °C at 85% non-condensing

relative humidity

Meter dimensions: 21.2 x 8.7 x 4.2 cm (8.35 x 3.43 x 1.65 inches)

Enclosure:Waterproof (designed to meet IP67), chemical-

resistant, dust proof; meter will float. Docking station is water-

resistant to IP40.

SPECIFICATIONS, continued

pH Mode

Range:-2.00–19.99

Resolution (selectable): 0.001/0.01/0.1

Slope (meter allowable): 48–65 mV/decade

Instrument Drift: <40 µV/°C

Input Bias Current: -1 pico amp ≤input bias ≤1 pico amp at

25 °C; ±4 picoamp over full range

Millivolt Mode Range: -2000–2000 mV

Resolution: 0.1 mV

Accuracy (meter only): ±0.2 mV or ±0.15% of the reading,

whichever is greater

Temperature Range: -10.0–110 °C

Resolution: 0.1 °C

Accuracy: ±0.3 °C from 0–70 °C; ±1.0 °C from 70–110 °C

Conductivity Mode Range: 0–19.99 µS; 20–199.9 µS/cm; 200–1999 µS/cm;

2–19.99 mS/cm; 20–199.9 mS/cm

TDS: 0–50,000 mg/L as NaCl

Salinity: 0–42 ppt (‰)

Temperature: -10–105 °C

Resolution:

Conductivity:

0.00–19.99 µS/cm 0.01 µS/cm

20.0–199.9 µS/cm 0.1 µS/cm

200–1999 µS/cm 1 µS/cm

2.00–19.99 mS/cm 0.01 mS/cm

20.0–199.9 mS/cm 0.1 mS/cm

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