Instruction Manual HI 2300 Auto-ranging Microprocessor EC/TDS/NaCl/ºC Bench Meter C CA CALTL GLP CFM SETU P ALT ATC TC NGE Selec Rang t Meas e ureme Start nt ALT Fu Calib ration nctio Lock CALT Curre ns Sta nt Ra Chan nge Ca rt Temp SETU CFM ge Va P En libration eratur lue Confi e ter Se ATC rm Va GLP tup Mo Temp Vie Comp eratur lue de Dataw Calib TC ensa e ration RANG tion Displa E y TC Facto r CAL LOCK / RA Func tio ns MicI2300 roproc es H sor C LOCK ondu ctivity Meter w w w. h a n n a i n s t . c o m 1 Dear Customer, Thank you for choosing a Hanna Instruments product. Please read this instruction manual carefully before using the instrument. This manual will provide you with the necessary information for correct use of the instrument, as well as a precise idea of its versatility. If you need additional technical information, do not hesitate to e-mail us at tech@hannainst.com or turn to the back cover for our worldwide contact list. This instrument is in compliance with directives. WARRANTY HI 2300 is guaranteed for two years against defects in workmanship and materials when used for their intended purpose and maintained according to instructions. Electrodes and probes are guaranteed for six months. This warranty is limited to repair or replacement free of charge. Damage due to accidents, misuse, tampering or lack of prescribed maintenance is not covered. If service is required, contact the dealer from whom you purchased the instrument. If under warranty, report 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 returned to Hanna Instruments, first obtain a Returned Goods Authorization number from the Technical Service department and then send it with shipping costs prepaid. When shipping any instrument, make sure it is properly packaged for complete protection. TABLE OF CONTENTS WARRANTY ..................................................................................................... 2 PRELIMINARY EXAMINATION .............................................................................. 3 GENERAL DESCRIPTION .................................................................................... 3 FUNCTIONAL DESCRIPTION ................................................................................ 4 SPECIFICATIONS ............................................................................................... 5 OPERATIONAL GUIDE ........................................................................................ 7 AUTORANGING ................................................................................................ 8 TEMPERATURE COMPENSATION ......................................................................... 8 EC/TDS CALIBRATION ....................................................................................... 9 NaCl CALIBRATION ......................................................................................... 10 TEMPERATURE CALIBRATION (for technical personnel only) .................................. 12 TEMPERATURE ADJUSTMENT .......................................................................... 12 CONDUCTIVITY VERSUS TEMPERATURE CHART ................................................. 13 SETUP .......................................................................................................... 14 GOOD LABORATORY PRACTICE ........................................................................ 15 DATA TRANSFER TO PC ................................................................................... 17 PROBE MAINTENANCE .................................................................................... 18 ACCESSORIES ................................................................................................ 18 2 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 76310 Conductivity / TDS probe · 12V Power Adapter · Instruction Manual Note: Save all packing material until you are sure that the instrument functions correctly. All defective items must be returned in the original packing with the supplied accessories. GENERAL DESCRIPTION The HANNA HI 2300 is a bench microprocessor-based Conductivity/TDS/ NaCl/Temperature meter. The autoranging feature of the EC and TDS ranges automatically sets the instrument to the scale with the highest possible resolution. The conductivity measurements are manually or automatically compensated for temperature effect, with the temperature sensor inside the conductivity probe. It is also possible to disable the temperature compensation and measure the actual conductivity. The temperature coefficient is user selectable. The instrument is equipped with a stability indicator. With this feature the user will always know when to record a measurement. HI 2300 includes also GLP capability and data transfer to a computer through a RS232 port. In addition, the meter allows the user to enter an ID code to uniquely identify the instrument. Hanna Instruments reserves the right to modify the design, construction and appearance of its products without advance notice. 3 FUNCTIONAL DESCRIPTION Front Panel Primary LCD Secondary LCD CAL g/l NaCl % C 1 CFM ppm BUF 10 2 3 4 5 6 7 ALT Functions RANGE ALT Functions CALT SETUP GLP Select Measurement Range Start Calibration Lock Current Range Change Value Confirm Value Temperature Compensation CAL CALT CFM CAL LOCK Start Temperature Calibration Enter Setup Mode View Calibration Data Display TC Factor 9 RANGE / CFM TC 8 LOCK GLP SETUP ATC HI 2300 ATC TC Microprocessor Conductivity Meter Rear Panel POWER 12VDC PROBE RS232 11 12 13 1) Liquid Crystal Display (LCD). 2) CAL key, to enter/exit calibration mode. CALT key (alternate function), to enter temperature calibration mode. 3) CFM key, to confirm different values. 4) key, to manually decrease temperature value or other parameters. SETUP key (alternate function), to enter/exit SETUP mode. 5) key, to manually increase temperature value or other parameters. GLP key (alternate function), to display Good Laboratory Practice information. 6) ATC key, to select temperature compensation mode. TC key (alternate function), to view the temperature coefficient value. 7) ALT key, to select alternate key function. 8) LOCK key, to freeze current range on the LCD. 9) RANGE key, to select the measurement unit or to switch the focused data. 10) ON/OFF switch. 11) Power supply socket. 12) Probe connector. 13) RS232 serial communication connector. 4 SPECIFICATIONS 0.00 to 29.99 µS/cm 30.0 to 299.9 µS/cm 300 to 2999 µS/cm 3.00 to 29.99 mS/cm 30.0 to 200.0 mS/cm up to 500.0 mS/cm (actual E C)* 0.00 to 14.99 mg/L (ppm) 15.0 to 149.9 mg/L (ppm) 150 to 1499 mg/L (ppm) 1.50 to 14.99 g/L (ppt) 15.0 to 100.0 g/L (ppt) up to 400.0 g/L (actual TD S)* with 0.80 conversion factor 0.0 to 400.0% ­9.9 to 120.0 °C 0.01 µS/cm 0.1 µS/cm 1 µS/cm 0.01 mS/cm 0.1 mS/cm 0.01 mg/L 0.1 mg/L 1 mg/L 0.01 g/L 0.1 g/L 0.1% 0.1 °C ±1% of reading ±(0.05 µS/cm or 1 digit) ±1% of rea d in g ±(0.03 m g /L or 1 digit) ±1% of reading ±0.4 °C Automatic, 1 point with 6 memorized values: 84.0, 1413 µS/cm 5.00, 12.88, 80.0, 111.8 mS/cm 1 point, with HI 7037 calibration solution 2-point, at 0 and 50 °C (32 and 122 °F) EC RANGE TD S NaCl Temp EC RE SOLUTION TD S NaCl Temp EC ACCURACY @ 20 °C/68 °F TD S NaCl Temp EC CALIBRATION NaCl Temp * Actual conductivity (or TDS) is the conductivity (or TDS) value without temperature compensation. 5 SPECIFICATIONS (cont.) Temperature compensation Temperature coefficient TD S conversion factor Probe (included) Computer Interface Auto-off Power supply D imensions Weight E nvironment Warranty Automatic or manual, 0 to 60 ºC (32 to 140 ºF) Selectable from 0.00 to 6.00 %/ºC (E C and TD S only) Selectable from 0.40 to 0.80 (default value: 0.50) HI 76310 4-ring Platinum, internal temperature sensor RS232 opto-isolated after 5 minutes of non-use (can be disabled) 12 Vdc power adapter (included) 240 x 182 x 74 mm (9.4 x 7.1 x 2.9") 1.1 Kg (2.4 lb) 0 ­ 50 ºC (32 - 122 ºF) max RH 95% non condensing 2 years 6 OPERATIONAL GUIDE CONNECTIONS Plug the 12 VDC adapter into the power supply socket. Note: This instrument use non volatile memory to retain the calibration parameters and all the other settings even when unplugged. Connect the EC/TDS probe to the 7-pin connector. Tighten the threaded ring. Make sure the probe sleeve is properly inserted, as shown below: POWER 12VDC PROBE RS232 INSTRUMENT START-UP · Turn the instrument on by pressing the ON/OFF switch. CAL CFM ppm BUF g/l NaCl % C · All LCD tags are displayed and a beep is generated while the instrument performs self test. TAKING MEASUREMENTS Immerse the probe into the solution to be tested. The sleeve holes must be completely submerged. Tap the probe repeatedly to remove any air bubbles that may be trapped inside the sleeve. If needed, press RANGE repeatedly until the desired range (EC, TDS, NaCl) is selected on the LCD (displaying µS[mS], ppm[g/L] or %). C RANGE Allow for the reading to stabilize. The upper LCD displays the measurement in the selected range, while the temperature is displayed on the lower LCD. 7 Notes: · · · · If the meter displays "----", the reading is out of range. If the stability indicator "~" blinks, the reading is unstable. Make sure the meter is calibrated before taking measurements. If measurements are taken successively in different samples, for accurate readings it is recommended to rinse the probe thoroughly with deionized water before immersing it into the samples. TDS reading is obtained by multiplying the EC reading by the TDS factor, which has a default value of 0.50. It is possible to change the TDS factor in the 0.40 to 0.80 range by entering setup mode and selecting the "tdS" item (see SETUP for details). When the use of an alternate function (SETUP, TC, GLP or CALT) is requested, press and hold the ALT key first, and then the second key. · · AUTORANGING The EC and TDS scales are autoranging. The meter automatically sets the scale with the highest possible resolution. By pressing LOCK, the autoranging feature is disabled and the current range is frozen on the LCD. "1" tag starts blinking. To restore the autoranging option press LOCK LOCK again. Note: Autoranging is automatically restored if the range is changed, if the setup or calibration modes are entered, or if the meter is turned off and back on again. TEMPERATURE COMPENSATION Three options of compensating temperature are available: Automatic (Atc): The EC probe has a built-in temperature sensor; the temperature value is used to automatically compensate the EC/TDS reading (from ­9.9 °C to 120.0 °C), using the selected reference temperature. Manual (Mtc): The temperature value, shown on the secondary LCD, can be manually set with the ARROW keys. The compensation is referenced at the selected reference temperature. The "°C" tag blinks when this option is active. No Compensation (notc): The temperature value shown on the secondary LCD is not taken into account. The reading displayed on the primary LCD is the actual EC or TDS value. The "°C" tag blinks when this option is active. Note: The default compensation mode is ATC. 8 To select the desired option press ATC until the option is displayed on the LCD. If temperature compensation is active, measurements are ATC compensated using the temperature coefficient (default value 1.90 %/°C). To change the temperature coefficient, enter the setup mode and select the "tc" item (See SETUP for details, page 14). The current temperature coefficient can be quickly viewed by pressing ALT+TC keys. The value is briefly displayed on the secondary LCD. ALT TC · If the temperature reading is out of ­9.9 °C - 120.0 °C interval and Atc or Mtc option is selected, the temperature limit range value will be displayed, together with the "°C" tag blinking and the instrument will do no temperature compensation. EC/TDS CALIBRATION EC calibration is a one-point procedure. Selectable calibration points are: 0.00 µS, 84.0 µS, 1413 µS, 5.00 mS, 12.88 mS, 80.0 mS, 111.8 mS. To enter EC calibration, select the EC range and press CAL. CAL Note: TDS reading is automatically derived from the EC reading and no specific calibration for TDS is needed. Pressing CAL when TDS range is selected has no effect. Rinse the probe with calibration solution or deionized water. Immerse the probe into the solution. The sleeve holes must be completely submerged. Tap the probe repeatedly to remove any air bubbles that may be trapped inside the sleeve. For zero calibration, just l ...