Instruction Manual HI 98140 - HI 98150 Portable Waterproof Microprocessor Logging GLP pH / ORP 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 instrument. This manual will provide you with all the necessary information for the correct use of the instrument, as well as a precise idea of its versatility in a wide range of applications. directives. These instruments are in compliance with the TABLE OF CONTENTS PRELIMINARY EXAMINATION .....................................................................
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. Each meter is supplied complete with: • Amplified pH electrode with built-in temperature sensor and EEPROM and DIN connector • HI70004 pH 4.01 sachet (1 pc) • HI70007 pH 7.01 sachet (1 pc) • Instruction Manual • AA size Alkaline Batteries (4 pcs) • Rugged Carrying Case.
well as in the laboratory. An alarm time-out is available to alert the user if too much time has elapsed since the last pH calibration and that re-calibration may be required. The meter provides a controlled access to calibration and GLP settings through a password protection method. The Battery Error Preventing System (BEPS) recognizes batteries levels as they become weak.
FUNCTIONAL DESCRIPTION 1) 2) 3) 4) 5) 6) 7) Power adapter plug RS232 connector Electrode Connector Liquid Crystal Display (LCD) ON/OFF key, to turn the meter on and off ALT key, to alternate key function RANGE / GLP key, to select measurement ranges, to display time and date, and to view calibration data (with ALT) 8) CAL / CALT key, to enter calibration mode 9) CFM key, to move down or confirm values (with ALT) 10) LOG / RCL key, to store or recall (with ALT) measurements 11) FNC key, to move up or ent
SPECIFICATIONS Range pH -4.00 to 19.99 pH mV ±600.0 mV (HI98150 only) ±2000 mV autoranging (HI98150 only) Temp. -20 to 120 °C Resolution pH 0.01 pH mV 0.1 mV between ±400mV (HI98150 only) 0.2 mV from +400 to +600mV (HI98150 only) 0.2 mV from -400 to -600mV (HI98150 only) 1 mV outside (HI98150 only) Temp. 0.1 °C from -10 to 120 °C / 1°C below -10°C Accuracy pH ±0.01 pH (@20°C/68°F) mV ±0.2mV between ±400mV (HI98150 only) ±0.4mV from+400 to+600mV (HI98150 only) ±0.
INITIAL PREPARATION Each meter is supplied complete with batteries. Remove the back cover, unwrap the batteries and install them while paying attention to the polarity. Alternatively, connect the HI 710005 or HI 710006 voltage adapter to the power adapter plug. To prepare the instrument for use, connect the pH or ORP (HI98150 only) electrode to the connector located on the top of the instrument. To switch the meter on, press the ON/OFF key.
SETUP MODE Setup can be used to view data regarding instrument status (e.g. battery charge) or to change the meter parameters (e.g. time). • To enter this mode press the ALT and FNC keys when the meter is in measurement mode. • The setup code "00" will blink on the lower LCD and "Set" will be displayed on the upper one. • Select the code of the desired parameter using the or key. • Press ALT and CFM to confirm the code.
PARAMETER SETTINGS • Once the parameter code (and password if needed) has been entered, the current value of the selected parameter on the upper LCD and the parameter code on the lower LCD will be displayed. The parameter or a part of it will blink (e.g. only the hour blinks if time has been selected). • Enter the new value using the arrow keys. • If there is another part of the parameter to be set (e.g. minutes for the time), press RANGE to gain access and then enter the new value using the arrow keys.
1 2 The meter automatically checks for entered time/date accuracy as follows: 0≤hh≤23; 0≤mm≤59; 01≤dd≤28/29/30/31; 1≤MM≤12; 1998≤YYYY≤2097. To change the password, the correct code must be entered first. If the password has been forgotten, the password protected features are no longer accessible; in this case contact your nearest Hanna Service Center. Some of the setup parameters are explained below.
TAKING pH MEASUREMENTS Connect the pH electrode with the built-in temperature sensor to the meter and press ON/OFF to power on the instrument. The meter automatically checks that the stored calibration data correspond to the connected electrode. The pH range will be automatically set. If the pH electrode is not connected the LCD will display the "no probe" message and then dashed lines in place of the readings.
TAKING ORP MEASUREMENTS (HI98150 ONLY) Connect the ORP electrode to the meter and press the ON/OFF key. The meter automatically sets the mV range. If the ORP electrode is not connected the LCD will display the "no probe" message and then dashed lines in place of the readings. To take ORP measurements, simply submerge the bottom 4 cm (1½") of the ORP electrode in the solution to be tested, stir gently and allow for the reading to stabilize.
pH CALIBRATION PROCEDURE For greatest accuracy, it is recommended that the instrument is calibrated frequently. For a faster procedure, it is possible to calibrate at 1 point, but it is always a good practice to calibrate at 2 points. A two-point calibration can use any combination of the three sets: (4.01) (6.86 / 7.01) (9.18 / 10.01) Only one value from each set can be selected. For example if pH 7.01 is used as first point, it will not be possible to select pH 6.86 as the second point.
Note: The buffer pH value, and thus the value displayed on the lower LCD, varies with temperature. For example, at 20oC it shows 4.00 -7.03 -10.06, at 25oC it shows 4.01-7.01-10.01. 6. Select the first buffer solution value with and if necessary. 7. When the "CFM" symbol blinks, the reading is stable and calibration can be confirmed. 8. Press ALT and CFM to confirm the first buffer. 9.
. The LCD will display "Stor". The instrument checks the electrode parameters and advises the user of abnormalities by "old probe" and "dead probe" indications (in these cases, repeat the calibration with fresh buffers). If everything is satisfactory the meter is calibrated and it returns to normal operational mode.
10. Set the simulator to +350 mV. 11. When the "CFM" symbol blinks, the reading is stable. Press ALT and CFM to confirm the second value. 12. The LCD will display "Stor" for a few seconds. 13. If only a two-point calibration is required, press CAL to leave the calibration mode. Proceed with the next step for three-point calibration. 14. The meter will display "1900 mV" on the lower LCD with the "BUF 3" indication. 15. Set the simulator to 1900 mV. 16. When the "CFM" symbol blinks, the reading is stable.
LOGGING FUNCTION To store the current reading in memory press the LOG key while in measurement mode. The LCD will display "Stor" along with the "LOG" indication and the sample number for a few seconds. By pressing the LOG key a complete set of information is memorized: date, time, pH and mV (HI98150 only) readings, temperature reading and also a message on the meter status. Up to 500 samples can be stored into memory.
- year - time - pH reading "----" means reading out of range or no probe was connected. "OrP" means that an ORP electrode was connected. - mV reading (HI98150 only) "----" means reading out of range. - temperature reading "----" means reading out of range. - GLP message • If RANGE is pressed when the GLP message is displayed, the LCD will revert to the date of the viewed sample. • It is always possible to skip to another sample using the up and down arrow keys.
Note: Press ALT and DEL. to escape without data deletion. When viewing through the logged data, the "NUL" message will be displayed when selecting a deleted sample. To delete all data in memory: • Press ALT and DEL while in normal operational mode. The "del All" message will scroll on the LCD and the "CFM" indication will start blinking asking for confirmation. • Press ALT and CFM to confirm deletion. Note: Press ALT and DEL to escape without data deletion.
GOOD LABORATORY PRACTICE (GLP) GLP is a set of functions that allows the storage or retrieval (when necessary) of data regarding the maintenance and status of the electrode. HI98140 and HI98150 use electrodes with a built-in EEPROM in which calibration data are read at start-up and stored after calibration. The meter can automatically analyze the data and advise the user if a problem is found with a clear message.
GLP AND RS232 All the GLP data can be retrieved (if the electrode is connected) from a PC through the RS232 communication feature. The calibration data are transferred to the PC along with measurement data (see "Data transfer to PC" paragraph). LAST CALIBRATION DATA Last calibration data are stored automatically after a successful calibration and they can be displayed by pressing the GLP key. to view pH calibration data • Press ALT and GLP when the meter displays pH reading.
LCD BACKLIGHT The LCD can be illuminated to allow the user to see the readings even in dark environments. It can be enabled/disabled through the LIGHT key and it is automatically disabled when batteries are in low battery condition. Two levels (low and high) of backlighting can be selected. Repeatedly pressing the LIGHT key causes the lighting to cycle from off to low then to high intensity.
The commands available are as follows: MOD - to request the firmware code of the meter. GLP - to request the last calibration data. The meter answers with the following order: pH calibration status (0=not calibrated , 1=calibrated) pH calibration date (ddmmyy) pH calibration time (hhmm) pH electrode offset pH electrode slope pH buffer 1 pH buffer 2 mV calibration status (HI98150 only;1=calibrated,0=not calibr.
BATTERY REPLACEMENT When the batteries are inserted and no power adapter is connected, the meter can recognize different batteries charge levels. 1. Fully charged batteries - The backlight can be enabled. 2. Weakening batteries - The backlight is automatically disabled and it is not possible to enable it until new batteries are inserted or an external power adapter is connected. The "Batt" indication appears when trying to enable backlight. 3.
TEMPERATURE-RESISTANCE CORRELATION FOR HANNA pH SENSITIVE GLASS The resistance of glass electrodes partially depends on the temperature. The lower the temperature, the higher the resistance. It takes longer time for the reading to stabilize if the resistance is higher. In addition, the response time will suffer to a greater degree at temperatures below 10°C.
ELECTRODE CONDITIONING AND MAINTENANCE Note: to prevent damage to the electrode, remove the pH electrode from the sample before turning the meter off. If the meter is OFF, detach the electrode from the meter before immersing the electrode in the storage solution. PREPARATION Remove the protective cap. DO NOT BE ALARMED IF SALT DEPOSITS ARE PRESENT. This is normal with electrodes and they will disappear when rinsed with water. During transport tiny bubbles of air may form inside the glass bulb.
Replace solution in the protective cap with a few drops of HI70300 or HI80300 Storage Solution or, in its absence, Filling Solution (HI7071 for single junction or HI7082 for double junction electrodes). Follow the Preparation Procedure above before taking measurements. Note: NEVER STORE THE ELECTRODE IN DISTILLED WATER OR DRY. PERIODIC MAINTENANCE Inspect the electrode and the cable.
• • • • • electrodes only): refill with fresh HI7071 for single junction or HI7082 for double junction electrodes. Dry Membrane/Junction: Soak in Storage Solution HI70300 for at least 1 hour. Drifting: Soak the electrode tip in warm Hanna Solution HI7082 for one hour then flush tip with distilled water. Refill with fresh HI7071 for single junction electrodes and HI7082 for double junction electrodes. Low Slope: Refer to the cleaning procedure above.
ORP PRETREATMENT SOLUTIONS HI 7091L HI 7092L Reducing Pretreatment Solution, 460 mL Oxidizing Pretreatment Solution, 460 mL SMART ELECTRODES HI1615D HI1616D HI1617D HI1618D HI3619D HI3620D FC 201D FC 212D FC231D FC241D combination pH electrode, glass-body, single junction, refillable with built-in temperature NTC sensor and EEPROM for GLP data storing. combination pH electrode, glass-body, single junction, gel-filled with built-in temperature NTC sensor and EEPROM for GLP data storing.
WARRANTY All Hanna Instruments meters are warranted for two years against defects in workmanship and materials when used for their intended purpose and maintained according to instructions. The electrodes are warranted for a period of six months. This warranty is limited to repair or replacement free of charge. Damages due to accident, misuse, tampering or lack of prescribed maintenance are not covered. If service is required, contact the dealer from whom you purchased the instrument.
CE DECLARATION OF CONFORMITY Recommendations for Users Before using this product, make sure that it is entirely suitable for the environment in which it is used. Operation of this instrument in residential area could cause unacceptable interferences to radio and TV equipments, requiring the operator to take all necessary steps to correct interferences. The glass bulb at the end of the electrode is sensitive to electrostatic discharges. Avoid touching this glass bulb at all time.
HANNA LITERATURE Hanna publishes a wide range of catalogs and handbooks for an equally wide range of applications. The reference literature currently covers areas such as: • Water Treatment • Process • Swimming Pools • Agriculture • Food • Laboratory • Thermometry and many others. New reference material is constantly being added to the library. For these and other catalogs, handbooks and leaflets, contact your dealer or the Hanna Customer Service nearest to you.
