Table of Contents
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Table of Contents
Related Manuals for Delta OHM HD 9213-R1
Summary of Contents for Delta OHM HD 9213-R1
- Page 1 HD 9213-R1 INSTRUCTION MANUAL...
- Page 2 HD 9213-R1...
- Page 3 HD 9213-R1 MICROPROCESSOR CONDUCTIVITY METER - THERMOMETER – 29 –...
- Page 4 ENGLISH 1 LCD Display 2 Battery symbol 3 Symbol indicating that the reading is in milliSiemens 4 Symbol indicating that the reading is in microSiemens 5 Key for selecting temperature reading in °C or °F 6 Key for enabling the calibration function 7 Key that increases the value to be set during the para- meter setting phase 8 Symbol indicating that the temperature reading is in °F...
- Page 5 ENGLISH Symbols lit Description besides the numbers All the symbols are lit for Switches the instrument on and off. a few seconds after swit- The instrument switches itself off ching on automatically about 8 minutes after the ON/OFF key has been pressed. It is provided with an auto power off function.
- Page 6 ENGLISH Symbols lit Description besides the numbers Key for selecting the temperature °C reading in °C or °F. µS °F °C °F symbol indicates the unit chosen. µS °F °C When used in combination with others, the key also carries out other functions.
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Page 7: General Information
ENGLISH GENERAL INFORMATION The HD 9213-R1 is normally supplied with the combined 4-electrode and temperature probe SPT13. The cell measurement area is bounded by a Pocan tube. A positioning key, directs correctly the insertion of the tube into the probe. To clean the probe, pull the tube along the probe axle. - Page 8 2 are calibration procedures. They are identified as follows: C1: The instrument operates with the original calibration performed in the Delta Ohm workshop. It cannot be altered. C2: The instrument operates with temperature calibration of the instrument alone, performed with a suitable simulator.
- Page 9 ENGLISH Simulate 0°C at the instrument input with a suitable simulator; using the keys, set on the display the correct value which corresponds to the first calibration point. Next simulate the second calibration point and set the correct value on the display using the keys.
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Page 10: Automatic Calibration
ENGLISH PREPARATION OF STANDARD CALIBRATION SOLUTIONS Dry the potassium chloride (KCl) at 105...120°C (221...248°F) for two hours. For a 1-mole solution, dissolve 74.555 g KCl in one litre of demine- ralized water with conductivity less than 3 µS/cm. For a 0.1-mole solution, dissolve 7.456 g KCl in one litre of demineralized water with conductivity less than 1 µS/cm. -
Page 11: Manual Calibration
ENGLISH Note: when leaving calibration mode the value on the display may increase or decrease. This happens only if the temperature of the liquid is different from 20°C (25°C) (which is the temperature at which the conductivity values are normalized). In fact, when the temperature is different from 20°C (25°C) the instrument indicates the conductivity value with the temperature com- pensation made according to the α... -
Page 12: Temperature Compensation
20°C (25°C) and another at the temperature , having previously excluded temperature compensa- tion (in the HD 9213-R1 this may be done by setting α at 0.00, see the next paragraph). The formula for calculating α... - Page 13 ENGLISH For the definition of the variables see the figure Definition of the temperature coefficient In the HD 9213-R1 temperature compensation is automatic and therefore it is sufficient to set the temperature coefficient α of the liquid with the fol- lowing procedure: SETTING THE TEMPERATURE COEFFICIENT α...
- Page 14 ENGLISH Conductivity and corresponding temperature coefficients of certain substances (25°C) Temperature Temperature Concentra- Conductivity Concentra- Conductivity Substance coefficient Substance coefficient tion S•cm tion S•cm %/°C %/°C NaOH 1969 2.01 2.36 (15°C) 3124 2.17 2.49 3463 2.49 2.56 3270 2.99 2.52 2022 4.50 2.71...
- Page 15 ENGLISH HOW TO MEASURE CONDUCTIVITY a) Connect the connector of the conductimetry cell to the instrument paying attention to the polarization mark. Immerse the probe in the solution so that the electrodes are covered. Shake the probe gently so that any air inside it will escape. b) Switch on the instrument by pressing the ON/OFF key.
- Page 16 ENGLISH APPLICATIONS OF CONDUCTIVITY MEASUREMENTS It must always be remembered that the conductivity of a liquid is proportio- nal to the total amount of dissolved substances and not to one specific substance. Despite this there are many applications of conductivity, espe- cially for quality controls.
- Page 17 ENGLISH Conductivity of dilute solutions. Conductivity of high concentration solutions. – 43 –...
- Page 18 ENGLISH CHECKING CONDUCTIVITY IN MULTI-ELECTROLYTE SOLUTIONS A conductimetry control often allows the chemical-physical variation of a solution to be detected. In oceanography the total saline content may be determined by means of conductivity measurements. In lake or river water a variation in conductivity is often the sign of pollution due to industrial waste water.
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Page 19: Error Indication
ENGLISH Conductivity (µS•cm (mS•cm Correspondence between electric resistance and conductivity ERROR INDICATION OL: Overload warning. E1: The solution used for conductivity calibration is wrong because the slope calculation gives a value >150% of the rated value. E2: The solution used for conductivity calibration is wrong because the slope calculation gives a value <30% of the rated value. -
Page 20: Method Of Use
ENGLISH METHOD OF USE Ensure that the measuring area is not live. The instrument is not insula- ted; during measurement with non-insulated probes ensure that it does not come in contact with live surfaces with a voltage of more than 24V. This could be dangerous for the instrument but especially for the opera- tor who could receive an electric shock. - Page 21 ENGLISH To change the battery, unscrew the cross-headed screw on the door of the battery compartment, open the door, – 47 –...
- Page 22 ENGLISH take out the old battery and put in the new one. After replacing it, close the door, inserting the tag on the door into the slot provided, then fasten the retaining screw on the door. Ensure that the instrument is switched off before changing the bat- tery.
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Page 23: Maintenance
ENGLISH FAULTY OPERATION WHEN SWITCHING ON AFTER CHANGING THE BATTERY If the instrument does not switch on or off after changing the battery, repeat the battery changing procedure, waiting for a few minutes to allow the circuit condenser capacities to be completely discharged, then insert the battery. -
Page 24: Block Diagram
ENGLISH BLOCK DIAGRAM – 50 –... -
Page 25: Arrangement Of Components
ENGLISH ARRANGEMENT OF COMPONENTS C 2 3 C 1 8 R 20 C 9 4 B C 25 C 1 3 – 51 –... - Page 26 ENGLISH ARRANGEMENT OF COMPONENTS C34A – 52 –...
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Page 27: Technical Characteristics
ENGLISH GUARANTEE This instrument is strictly inspected before being sold. However if there should be any defect due to manufacture and/or transport, apply to the dealer from whom you bought the instrument. The guarantee period is 2 (two) years from the date of purchase. During this period all defects found by us will be repaired free of charge, exclu- ding those due to incorrect use and careless handling. -
Page 28: Order Codes
- Dimensions instrument: 42x185x23 mm, weight 130 grams. - Kit dimensions: 430x240x55 mm, weight 850 grams. ORDER CODES - HD 9213-R1: Kit composed of the instrument complete with zinc/carbon battery, SPT13 combined probe with 4 electrodes, instruc- tions manual, case. - Page 29 ENGLISH SENSOR COD. DIMENSIONS WORKING RANGE L=1.5 m K = 0,7 SPT13 (5 µS...20 mS) ∅ 12 ∅ 17 (0...90°C) K = 3 HD 9213S (5 µS...20 mS) ∅ 18 (0...60°C) K = 0,1 L=1.5 m SPT01 (0,1 µS...1 mS) (0...50°C) K = 1 L=1.5 m...
- Page 30 IEC1000-4-3 sucseptibility Electromagnetic interference EN55020 class B emission SIT CALIBRATION CENTRE N° 124 DELTA OHM SRL VIA G. MARCONI, 5 - 35030 CASELLE DI SELVAZZANO (PD) - ITALY TEL. 0039-0498977150 r.a. - FAX 0039-049635596 e-mail: deltaohm@tin.it - Web Site: www.deltaohm.com...
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