Instruction Manual HI 9835 HI 98360 Auto Ranging EC/TDS/NaCl/ Temperature Meters w w w. h a n n a i n s t .
Dear Customer, Thank you for choosing a Hanna Instruments product. Please read this instruction manual carefully before using the instruments. This manual will provide you with the necessary information for correct use of the 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.com.
PRELIMINARY EXAMINATION Remove the instrument from the packing material and examine it carefully to make sure that no damage has occurred during shipping. If there is any damage, notify your Dealer or the nearest Hanna Customer Service Center. Each instrument is supplied with: • HI 76309 Conductivity probe with 1 m cable (HI 9835) • HI 76309/1.5 Conductivity probe with 1.5 m cable (HI 98360) • 3 x 1.
FUNCTIONAL DESCRIPTION HI 98360 7 9 8 HI 9835 1) Liquid Crystal Display (LCD). 2) Range key, to select EC/TDS/NaCl range. Setup key, to enter/exit SETUP mode. 3) On/Off key, to turn the instrument ON and OFF. 4) CAL key, to enter/exit calibration mode. GLP key, to display Good Laboratory Practice information. 5) 2nd key, to select second key function.
6) 7) 8) 9) 10) 11) 12) 13) 14) 15) key, to manually increase temperature or other parameters. ATC key, to select temperature compensation mode. USB connector (HI 98360 only). Battery compartment cap. DIN connector for EC probe. key, to manually decrease temperature or other parameters. RCL key, to enter/exit view logged data mode (HI 98360 only). Log key, to store measured data (HI 98360 only). CFM key, to confirm different values. AutoEnd key, to freeze first stable reading on the LCD.
SPECIFICATIONS 0.00 to 29.99 µ S/cm 30.0 to 299.9 µ S/cm 300. to 2999. µ S/cm 3.00 to 29.99 mS/cm 30.0 to 200.0 mS/cm 0.up to 500.0 mS/cm uncompensated(*) conductivity RANGE 0.00 to 14.99 ppm 15.0 to 149.9 ppm 150. to 1499. ppm 1.50 to 14.99 g/lp. 15.0 to 100.0 g/lp. 0.up to 400.0 g/lp. uncompensated(*) TDS (with 0.80 factor) 0.0 to 400.0 % NaCl –20.0 to 120.0 ºC 0.01 00.1 0.01 0.01 00.1 µ S/cm µ S/cm µ S/cm mS/cm mS/cm 0.01 ppm 00.1 ppm 0.01 ppm 0.01 g/lp 00.1 g/lp RE SOLUTION 0.1% NaCl 0.
NaCl Calibration 1 point with HI 7037 buffer (optional) Temperature Calibration 2 point, at 0 and 50°C (32 and 122°F) Temperature Compensation Manual or Automatic from –20.0 to 120.0ºC (-4.0 to 248.0°F) (can be disabled to measure absolute conductivity) Temperature Coefficient 0.00 to 6.00 %/ºC (for E C and TD S only); default value is 1.90 %/ºC Reference Temperature 20ºC or 25ºC TD S Factor 0.40 to 0.80 (default value is 0.50) Probe HI 76309 E C probe (included for HI 9835) HI 76309/1.
OPERATIONAL GUIDE INITIAL PREPARATION The instrument is supplied complete with batteries. In order to place the batteries inside the instrument follow the instructions from page 28. To prepare the instrument for use, connect the EC probe to the input socket on the top of the instrument. Turn the instrument ON by pressing On/Off. At start-up the display will show all the used segments for a few seconds (or while the button is held), followed by the percentage indication of the remaining battery life.
Notes: • If the reading is out of range, the full scale value will be displayed blinking. • If the reading is not stable, the instability indicator “ ” will be on. • Make sure the meter is calibrated before taking measurements. • If measurements are taken successively in different samples, it is recommended to rinse the probe thoroughly with deionized water before immersion in the samples. If possible rinse with sample also.
AutoEnd To freeze the first stable reading on the LCD press AutoEnd while the instrument is in measurement mode. The ”HOLD” tag will be displayed blinking on the LCD until the reading is stabilized. When the reading is stable, the “HOLD” tag stops blinking and the reading is frozen on the LCD. Press AutoEnd again to return to normal measurement mode. Note: • Pressing Range the instrument will skip to the displayed range, without leaving AutoEnd mode. The Log key also holds AutoEnd mode.
To select the desired option press the 2nd then ATC key. The option tag will blink for a few seconds then remain active on the LCD. If temperature compensation is active, measurements are compensated using a default temperature coefficient of 1.90 %/°C to the 25°C reference temperature. This is a natural water tc value. It is possible to view or select a different temperature coefficient (TC) in the 0.00 to 6.
NaCl MEASUREMENTS Percent sodium chloride on these meters refers to percentage of seawater salinity. 100% is equal to seawater. The scale goes from 0 - 400%. Press the Range key while in EC range until NaCl is displayed on the LCD. The instrument will display the NaCl reading on the primary LCD and the temperature reading on the secondary LCD line. • If the reading is out of range, the full-scale value (400.0%) will be displayed blinking.
When the reading is stable, “READY” tag is displayed and “CFM” along with “~” tag starts blinking on the LCD, asking for confirmation. Press CFM (or 2nd then CFM) to confirm calibration. The instrument stores the calibration value and returns to measurement mode. Notes: • If the uncalibrated reading is too far from the expected value, the “WRONG” tag will blink. Calibration can not be confirmed.
CONDUCTIVITY VERSUS TEMPERATURE CHART The conductivity of an aqueous solution is a 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 solutions and by the viscosity of the solution itself. Both parameters are temperature dependent.
NaCl CALIBRATION NaCl calibration is a one-point procedure at 100.0% NaCl. Use the HI 7037L calibration solution (sea water solution) as a 100% NaCl standard solution. Rinse the probe with some of the calibration solution or deionized water. Submerse the probe into HI 7037L solution. The sleeve holes must be completely submersed. Tap the probe repeatedly to remove any air bubbles that may be trapped inside the sleeve. To enter NaCl calibration select the NaCl range and press CAL.
GOOD LABORATORY PRACTICE (GLP) GLP is a set of functions that allows storage and retrieval of data regarding the calibration and status of the probe and meter. All data regarding EC or NaCl calibration is stored for the user to review when necessary. LAST EC CALIBRATION DATA The last EC calibration data is stored automatically after a successful calibration. To view the EC calibration data, press 2nd then GLP when the instrument is in EC measurement mode. The instrument will display the date (mm.
• The temperature coeficient. • The instrument ID. LAST NaCl CALIBRATION DATA Last NaCl calibration data is stored automatically after a successful calibration. To view the NaCl calibration data, press GLP when the instrument is in NaCl measurement mode. The instrument will display: • The date and time. Press the ARROW key to view the next logged calibration parameters (pressing the key). • The cell constant (as for EC range). • The salinity coefficient. • The instrument ID (as for EC range).
SETUP Setup mode allows viewing and modifying the following parameters: • Cell constant (CELL) • TDS factor (FAct) • Temperature coefficient (tc) • Reference temperature (rEF) • Current Time (hour & minute) • Current Date (month, day & year) • Beep Status (bEEP) • Instrument ID (InSId) • Auto-off backlight timer (LIGH) • Auto power off timer (AOFF) • Temperature Unit To enter SETUP mode, press 2nd then Setup while the instrument is in measurement mode.
SETUP PARAMETERS Valid Values Default Cell constant for E C probe. 0.500 to 1.700/cm 1.000/cm FAct TD S Factor used to convert conductivity to a tota l d issolved solid va lu e displayed in ppm. When FAct = 5; 100 uS/cm = 50 ppm. This is a good approximation for a neutral salt solution. 0.40 to 0.80 0.50 tc tc is a temperature compensation factor that is used in Automatic a n d Ma n u a l tem p era tu re compensation.
LOGGING (HI 98360 only only)) This feature allows the user to log EC, TDS or NaCl measurements, together with corresponding temperature automatically. All logged data can be transferred to a PC through the USB port. The maximum logging space is 500 record locations. LOGGING THE CURRENT DATA To store the current reading into memory, press Log while in measurement mode. The instrument will display the current date (mm.
• If RCL mode was entered while the instrument was in NaCl range: the last NaCl memorized reading appears on the primary LCD and the record number on the secondary LCD. Press 2nd then Setup while in RECALL mode, when the record number is not displayed and the instrument will toggle between the record number on the secondary LCD and the current displayed information. Use the ARROW keys to select another record.
For an accurate recalibration, contact your dealer or the nearest Hanna Customer Service Center, or follow the instructions below. • Prepare a vessel containing ice and water and another one containing hot water (at approximately 50 ºC or 122 ºF). Place insulation material around the vessels to minimize temperature changes. • Use a calibrated thermometer with a resolution of 0.1 ºC as a reference thermometer. Connect the EC probe to the appropriate socket.
PC INTERFACE (HI 98360 only only)) Data transmission from the instrument to the PC can be done with the HI 92000 Windows® compatible software (optional). HI 92000 also offers graphing and an on-line help feature. Data can be exported to the most popular spreadsheet programs for further analysis. To connect your instrument to a PC, use a standard USB cable. Make sure that your instrument is switched off and plug one connector to the instrument’s USB socket and the other to the USB port of your PC.
CHR xx Change the instrument range according with the parameter value (xx): • xx=06 EC range • xx=07 TDS range • xx=08 NaCl range The instrument will answer for these commands with: where: is 02 ASCII code character (start of text) is 03 ASCII code character (end of text) : is 06 ASCII code character (recognized command) is 21 ASCII code character (unrecognized command) is 24 ASCII code character (corrupted command) COMMANDS REQUIRING AN ANSWER The
MDR GLP • Reading status (1 char): R - in range, O - over range, U - under range. • The reading (corresponding to the selected range) 7 ASCII chars, including sign and decimal point. • Temperature reading - 8 ASCII chars, with sign and two decimal points, always in ºC. Requests the instrument model name and firmware code (16 ASCII chars). Requests the calibration data record. The answer string contains: • GLP status (1 char): represents a 4 bit hexadecimal encoding.
PAR NSLx LODExxx LODNxxx LODTxxx LODEALL LODNALL LODTALL • the calibration time (12 chars) • standard unit (always 00 - 2 chars) • Reference Temperature with and decimal point (4 chars) • Temperature Compensation mode (2 chars) • 00 - no temperature compensation • 01 - automatic temperature compensation • 02 - manual temperature compensation • TC coeficient with sign and decimal point (5 chars) Requests the setup parameters setting.
The answer string for each record contains the number of records if ALL data is requested - 3 chars • The logged mode (2 chars): • 06 - EC range • 07 - TDS range • 08 - NaCl range • Reading status (1 char): R, O, U • Calculated reading, with sign and decimal point (7 chars) • Temperature reading, with sign and two decimal points (8 chars) • EC reading status (1 char): R, O, U - for TDS, NaCl range • Unit of the reading - for TDS, NaCl range (1 char) • The EC reading, with sign and decimal point - for TDS, N
BATTERIES REPLACEMENT If the batteries become weak, the display will flash the battery symbol to advise the user that approx. 1 hour of working time is left. It is recommended to change the batteries as soon as the battery indicator blinks (lower frequency). To replace the batteries, follow the next steps: • Turn the instrument OFF. • Open the battery compartment cap (located on the top of the instrument). • Remove old batteries. • Insert three new 1.
The instrument is provided with the BEPS (Battery Error Prevention System) feature, which automatically turns the instrument off when the batteries level is too low to ensure reliable readings. At start up the display will show “0 bAtt” message for a few seconds, then the instrument automatically turns off.
LCD MESSAGE GUIDE TAGS & SYMBOLS • Mode tags light up for indicating the corresponding active mode, and blink for warning the user. MEASURE on: Instrument in measurement mode. SETUP on: SETUP menu mode has been entered. CALIBRATION on: calibration mode has been entered. GLP on: GLP mode has been entered. RECALL MEMORY on: RECALL MEMORY mode has been entered. • Reading in HOLD: HOLD on: reading frozen in AutoEnd mode. HOLD blinking: reading unstable in AutoEnd mode.
• Battery symbol blinking: low battery condition. The batteries shoud be replaced soon. PROBE MAINTENANCE EC PROBE MAINTENANCE Rinse the probe with clean water after measurements. If a more thorough cleaning is required, remove the probe sleeve and clean the probe with a cloth or a nonabrasive detergent. Make sure to reinsert the sleeve onto the probe properly and in the right direction. After cleaning the probe, recalibrate the instrument.
TROUBLESHOOTING GUIDE SYMP TOMS P ROBL E M Readings fluctuate up and down (noise). E C probe sleeve not properly inserted; air bubbles inside sleeve. Tap the probe to remove air bubbles. The meter does not accept the standard solution for calibration. Out of order E C probe. Follow the maintenance procedure. If still no results replace the electrode. The display shows E C, TD S or NaCl reading blinking. Out of range in E C, TD S or NaCl scale. Recalibrate the meter.
ACCESSORIES CONDUCTIVITY CALIBRATION SOLUTIONS HI 70030P 12880 µS/cm solution, 20 mL sachet (25 pcs.) HI 7030L 12880 µS/cm solution, 500 mL bottle HI 7030M 12880 µS/cm solution, 230 mL bottle HI 70031P 1413 µS/cm solution, 20 mL sachet (25 pcs.) HI 7031L 1413 µS/cm solution, 500 mL bottle HI 7031M 1413 µS/cm solution, 230 mL bottle HI 70033P 84 µS/cm solution, 20 mL sachet (25 pcs.
OTHER ACCESSORIES HI 76309 PVC Conductivity/TDS probe with 4-rings (stainless steel), temperature sensor and 1 m cable. HI 76309/1.5 PVC Conductivity/TDS probe with 4-rings (stainless steel), temperature sensor and 1.5 m cable. HI 710005 12VDC voltage adapter (US plug) HI 710006 12VDC voltage adapter (European plug) HI 710012 12VDC voltage adapter (UK plug) HI 710013 12VDC voltage adapter (S. Africa plug) HI 710014 12VDC voltage adapter (Australian plug) HI 740028 1.
RECOMMENDATIONS FOR USERS Before using these products, make sure they are entirely suitable for the environment in which they are used. Operation of these instruments in residential areas could cause unacceptable interferences to radio and TV equipment, requiring the operator to follow all necessary steps to correct interferences. During operation, ESD wrist straps should be worn to avoid possible damage to the electrode by electrostatic discharges.
Hanna Instruments Inc. Highland Industrial Park 584 Park East Drive Woonsocket, RI 02895 USA Technical Support for Customers Tel. (800) 426 6287 Fax (401) 765 7575 E-mail tech@hannainst.com www.hannainst.
