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13

The conductivity of an aqueous solution is the measure of its ability to 
carry an electrical current by means of ionic motion.
The conductivity invariably increases with increasing temperature.
It is affected by the type and number of ions in the solution and by 
the viscosity of the solution itself. Both parameters are temperature 
dependent. The dependency of conductivity on temperature is 
expressed as a relative change per degree Celsius at a particular 
temperature, commonly as percent per °C.

For manual temperature compensation, refer to the following chart:
For instance, the conductivity values of the calibration solutions at 
25 °C are 12880 

µ

S/cm, 1413 

µ

S/cm or 5000 

µ

S/cm when using 

HI7030

HI7031

 or 

HI7039

, respectively. 

At 20 °C, the values are 11670 

µ

S/cm, 1278 

µ

S/cm or  

4523 

µ

S/cm, respectively. With the solutions at 30 °C, the values are 

14120 

µ

S/cm, 1548 

µ

S/cm or 5479 

µ

S/cm, respectively.

ºC ºF

HI7030

HI8030

(mS/cm)

HI7031

HI8031

(mS/cm)

HI7033

HI8033

(mS/cm)

HI7034

HI8034

(mS/cm)

HI7035

HI8035

(mS/cm)

HI7039

HI8039

(mS/cm)

0

32

7150

776

64

48300

65400

2760

5

41

8220

896

65

53500

74100

3180

10 50

9330

1020

67

59600

83200

3615

15 59

10480

1147

68

65400

92500

4063

16 60.8

10720

1173

70

67200

94400

4155

17 62.6

10950

1199

71

68500

96300

4245

18 64.4

11190

1225

73

69800

98200

4337

19 66.2

11430

1251

74

71300

100200 4429

20 68

11670

1278

76

72400

102100 4523

21 69.8

11910

1305

78

74000

104000 4617

22 71.6

12150

1332

79

75200

105900 4711

23 73.4

12390

1359

81

76500

107900 4805

24 75.2

12640

1386

82

78300

109800 4902

25 77

12880

1413

84

80000

111800 5000

26 78.8

13130

1440

86

81300

113800 5096

27 80.6

13370

1467

87

83000

115700 5190

28 82.4

13620

1494

89

84900

117700 5286

29 84.2

13870

1521

90

86300

119700 5383

30 86

14120

1548

92

88200

121800 5479

31 87.8

14370

1575

94

90000

123900 5575

CONDUCTIVITY VERSUS

TEMPERATURE CHART

Summary of Contents for HI 8733

Page 1: ...1 Instruction Manual HI8633 HI8733 HI8734 Reliable and Waterproof Multi Range Conductivity Meters www hannainst com...

Page 2: ...necessary information for correct use of these instruments as well as a precise idea of their versatility If you need additional technical information do not hesitate to e mail us at tech hannainst c...

Page 3: ...PECIFICATIONS OF HI8733 6 FUNCTIONAL DESCRIPTION SPECIFICATIONS OF HI8734 7 OPERATIONAL GUIDE 8 CALIBRATION 9 CONDUCTIVITY VERSUS TEMPERATURE CHART 13 TDS VERSUS TEMPERATURE CHART 14 DETERMINING THE T...

Page 4: ...ont panel The ratio between conductivity and TDS is factory set at 0 5 Moreover the 4 ring potentiometric probes supplied with the meters are madeofruggedPVC idealforindoor aswellasoutdoormeasurements...

Page 5: ...ccuracy 20 C 68 F 1 Full scale excluding probe error Typical EMC Deviation 2 Full Scale Calibration Manual 1 point through EC knob Temperature Compensation Manual 0 to 50 C 32 to 122 F with 2 C Probe...

Page 6: ...with adjustable from 0 to 2 5 C Probe included HI76302W ATC with 1m 3 3 cable Environment 0 to 50 C 32 to 122 F RH max 100 0 to 50 C 32 to 122 F RH max 100 Battery Type 1 x 9V alkaline Battery Life A...

Page 7: ...g L Resolution 0 1 1 mg L 0 01 g L Accuracy 20 C 68 F 1 Full scale excluding probe error Typical EMC Deviation 2 Full Scale Calibration Manual 1 point through TDS knob Temperature Compensation Manual...

Page 8: ...stic beakers or con tainers to minimize any EMC interference Tap the probe lightly on the bottom of the beaker to remove any air bubbles which may be trapped inside the PVC sleeve Turn the instrument...

Page 9: ...7030 or HI8030 12880 S cm 12 88 mS cm conductivity solution for HI8633 and HI8733 and HI7032 1382 mg L 2764 S cm TDS solution for HI8734 ChecktempC or another accurate thermometer with 0 1 C resolutio...

Page 10: ...e display shows for HI8633 the conductivity reading at 25 C see the conductivity vs temperature table e g 25 C 12880 S cm 12 88 mS cm or for HI8734 the TDS reading at 25 C see the TDS vs temperature c...

Page 11: ...ir bubbles remain trapped in the sleeve Switch the instrument on by pressing On Off Set the temperature coefficient knob to 2 to compensate for the tem perature effect of average solutions to determin...

Page 12: ...adjust the knob to read 11 67 mS see the conductivity vs temperature chart on page 13 All subsequent measurements will be compensated to 20 C The calibration is now complete and the instrument is rea...

Page 13: ...ns at 30 C the values are 14120 S cm 1548 S cm or 5479 S cm respectively C F HI7030 HI8030 mS cm HI7031 HI8031 mS cm HI7033 HI8033 mS cm HI7034 HI8034 mS cm HI7035 HI8035 mS cm HI7039 HI8039 mS cm 0 3...

Page 14: ...L or 12 41 g L when using HI7032 or HI7036 respectively At 20 C the values are 1251 mg L or 11 24 g L respectively With the solutions at 30 C the values are 1515 mg L or 13 61 g L respectively C F HI...

Page 15: ...g the temperature coefficient in a laboratory or where the temperature of the solution can be controlled If this is not possible e g on site measurements the following procedure can be used providing...

Page 16: ...iable measurements It is recommended to replace the battery immediately Battery replacement must only take place in a nonhazardous area using a 9V alkaline battery Unscrew the three screws on the rear...

Page 17: ...at the sleeve is in the right direction with the four holes towards the cable end After cleaning the probe recalibrate the instrument The probe body is in PVC For this reason it must never come into c...

Page 18: ...230 mL bottle HI7039L 5000 S cm 500 mL bottle HI7039M 5000 S cm 230 mL bottle HI7032L 1382 ppm mg L 500 mL bottle HI7032M 1382 ppm mg L 230 mL bottle HI7036L 12 41 ppt g L 500 mL bottle HI7036M 12 41...

Page 19: ...t the model number date of purchase serial number and the nature of the problem If the repair is not covered by the warranty you will be notified of the charges incurred If the instrument is to be ret...

Page 20: ...ruments Inc Highland Industrial Park 584 Park East Drive Woonsocket RI 02895 USA www hannainst com Local Office Hanna Instruments Inc Highland Industrial Park 584 Park East Drive Woonsocket RI 02895 U...

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