Instruction Manual pH 300/310 Waterproof Hand-held pH / mV / Temperature Meter 68X248901 Technology Made Easy ...
Preface This manual serves to explain the use of the waterproof pH 300/310 hand-held meter. It functions in two ways, firstly as a step by step guide to help you to operate the meter. Secondly, it serves as a handy reference guide. It is written to cover as many anticipated applications of the waterproof pH 300/310 meter as possible. If there are doubts in the use of the meter, please do not hesitate to contact the nearest Authorized Distributor.
TABLE OF CONTENTS 1 INTRODUCTION 1 2 DISPLAY AND KEYPAD FUNCTIONS 2.1 2.2 2.3 2.4 2.5 2.6 Display Keypad Inserting the Batteries Connecting the Electrode and Temperature Probe Attaching the Electrode Holder to the Meter Inserting the Electrode into the Electrode Holder 3 CALIBRATION 3.1 3.2 3.3 3.4 3.5 Important Information on Meter Calibration Preparing the Meter for Calibration pH Calibration Relative mV Calibration Temperature Calibration 4 MEASUREMENT 4.1 4.2 4.
1 INTRODUCTION Thank you for selecting this meter. The waterproof pH 300/310 Hand-held meter is a microprocessor-based instrument that is designed to be handy and user-friendly. It is capable of measuring pH, mV and temperature. It is designed to be handy and capable of allowing one-hand operation. It is completely WATERPROOF --- and it FLOATS! This meter has many user-friendly features – all of which are completely accessible through the water-resistant membrane keypad.
2 2.1 DISPLAY AND KEYPAD FUNCTIONS Display The LCD has a primary and secondary display. • The primary display shows the measured pH, mV or Relative mV value. • The secondary display shows the measured temperature. The display also shows error messages, keypad functions and program functions. See Figure 1. Primary Display 1 2 SETUP 18 17 READY HOLD ON 16 OFF MEAS 3 4 CAL MEM 5 -8.8.8.8 R.mV pH 6 MEM -1.8.8.
2.2 Keypad The large membrane keypad makes the instrument easy to use. Each button, when pressed, has a corresponding graphic indicator on the LCD. See Figure 2. Some buttons have several functions depending on its mode of operation. Key Function ON/OFF Powers on and shuts off the meter. When you switch on the meter, the meter starts up in the mode that you last switched off from.
2.3 Inserting the Batteries Four AAA batteries are included with your meter. 1. Use a Philips screwdriver to remove the two screws holding the battery cover. See Figure 3 below. 2. Remove battery cover to expose batteries. 3. Insert batteries. Follow the diagram inside the cover for correct polarity. 4. Replace the battery cover into its original position using the two screws removed earlier.
2.4 Connecting the Electrode and Temperature Probe The waterproof pH 300/310 handheld pH meter uses any standard pH, ORP, or ISE electrode with a BNC connector. For Automatic Temperature Compensation (ATC), this meter requires a temperature probe with a special 6-pin connector. Use either: • All electrode with a BNC connector and a separate temperature probe with 6-pin connector (EC-PHWPTEM-01W/ 35618-05).
Figure 4 - Connection for pH Electrode (BNC) and Temperature probe (6-pin connector) 6
2.5 Attaching the Electrode Holder to the Meter The waterproof pH 300/310 handheld meter comes complete with two electrode holders. They are designed to facilitate one-hand operation. Attach two electrode holders if you have a separate electrode and temperature probe. Care must always be taken to avoid use of excessive force in the process of attaching these components. 1. Locate the slot on the right-hand side of the meter. 2. Gently slide the flange of the holder into the slot on the meter.
3 3.1 CALIBRATION Important Information on Meter Calibration When you re-calibrate your meter, old pH, Rel mV and mV calibration points are replaced on a point by point basis. For example, if you previously calibrated your meter at pH 4.01, 7.00, and 10.01, and you have now re-calibrated at pH 7.00, the meter retains the old calibration data at pH 4.01 and pH 10.01. To view current calibration points, see Program P2.0 in the SETUP section on page 26.
pH 300 meter calibration The pH 300 meter is capable of up to 5-point pH calibration to ensure accuracy across the entire pH range of the meter. Select from the following buffer options: • USA buffers --- pH 1.68; 4.01, 7.00, 10.01, and 12.45. The meter automatically recognizes and calibrates to these standard buffer values, which makes pH calibration faster and easier. pH 310 meter calibration The pH 310 meter features three separate internationally-recognized buffer standards.
3.3 pH Calibration NOTE: We recommend that you perform at least 2-point calibration using standard buffers that bracket (one above and one below) the expected sample range. You can perform a 1-point calibration, but make sure that the buffer value is close to the sample value you are measuring. 1. If necessary, press the MODE key to select pH mode. The pH indicator appears in the upper right hand corner of the display. 2. Rinse the probe thoroughly with de-ionized water or a rinse solution.
7. Rinse the probe with de-ionized water or a rinse solution, and place it in the next pH buffer. 8. Follow steps 5 and 6 for additional calibration points. See Figure 9. 9. When all the calibration points as set in the Unit Configuration Setup (see P4.2 on page 31) are completed, the meter returns to Measurement mode automatically.
3.4 1. Relative mV Calibration While in the measurement function, press MODE to enter the mV mode. The mV indicator appears in the upper right hand corner. See figure at right. 2. Press the CAL/MEAS key. The CAL indicator appears above the primary display. The primary display shows the relative mV reading and the secondary display shows the absolute mV value.
3.5 Temperature Calibration The temperature sensor is factory calibrated. Calibrate the temperature probe only if you suspect temperature errors that may have occurred over a long period of time or if you have a replacement probe. Temperature Calibration 1. Make sure the ATC probe (or temperature connector of the electrode) is attached to the 6-pin connector. The ATC annunciator will appear at the right-hand side of the LCD. 2. Switch the meter on. Press the MODE key to select pH mode. 3.
4 MEASUREMENT This meter is capable of taking measurements with automatic or manual temperature compensation. Automatic temperature compensation only occurs when a temperature sensor is plugged into the meter. If there is no temperature sensor plugged into the meter, the default manual temperature setting is automatically 25 °C. You can manually set the temperature to match your working conditions using a separate thermometer. 4.
4.2 Manual Temperature Compensation IMPORTANT: For manual compensation, you must disconnect the temperature probe (see page 6). 1. Switch the meter on. Press the MODE key to select pH mode. 2. Press the CAL/MEAS key to enter pH calibration mode. The CAL indicator will appear above the primary display. 3. While in pH calibration mode, press the MODE key to enter temperature calibration mode.
4.3 Taking Measurements Be sure to remove the electrode soaker bottle or protective rubber cap on the electrode before measurement. To take readings: 1. Rinse the probe with de-ionized or distilled water before use to remove any impurities adhering to the probe body. If the pH electrode has dehydrated, Figure 15 - Measurement mode soak it for 30 minutes in electrode storage solution or 2M – 4M KCl solution (sold separately). 2. Press ON to switch on meter.
5 HOLD FUNCTION This feature lets you freeze the value of the pH, mV (or Relative mV) and temperature readings for a delayed observation. HOLD can be used any time when in MEAS mode. 1. To hold a measurement, press the HOLD key while in measurement mode. “HOLD” will appear on the display. See Figure 16. 2. To release the held value, press HOLD again. Figure 16 - HOLD feature Continue to take measurements. NOTE: This meter shuts off automatically 30 minutes after last key is pressed.
6 MEMORY FUNCTION 6.1 Memory Input Your meter stores data in sets: • pH and temperature • mV (or relative mV) and temperature For pH 300 meter: The pH 300 meter can store up to 16 sets of data in any combination of values. For example, you can store 7 pH and 9 mV values. For pH 310 meter: The pH 310 meter can store up to 50 sets of data in any combination of values. In addition to the standard data set, the pH 310 meter also stores the date and time the reading was stored. To store a reading: 1.
6.2 Memory Recall This function recalls the previous readings stored in the memory. You can only access MR from the measurement mode. Memory recall is in “Last In First Out” order. To recall readings: 1. Press the MR key once to retrieve the last reading stored. The memory location screen – MEM, “Loc” and the memory number – will flash on the display. 2. Press the ENTER key to recall the reading stored under that memory number.
4. If necessary, press the MI/▲ key to select the next “memory location” screen; press the MR/▼ key to select the previous “memory location” screen. 5. Repeat steps 2 to 5 to review additional stored data sets. 6. To exit Memory Recall, press the MEAS key to return to the Measurement mode. Figure 19 - View date and time (available only for pH 310 meter) NOTES: Readings stored in memory are retained even if the units are turned off. To erase all readings stored in memory, use the SETUP mode P1.
7 ADVANCED SETUP FUNCTIONS The advanced setup mode lets you customized your meter’s preferences and defaults. This meter features different sub groups that organize all setup parameters. The sub-groups are: 1. P1.0: Memory clear (CLr) 2. P2.0: Viewing calibration data (CAL) 3. P3.0: Viewing electrode data (ELE) 4. P4.0: Unit configuration (COF) 5. 6. P5.0 (pH 300 only): Reset to factory default settings (rSt) P5.0 (pH 310 only): Setting clock (CLO) P6.
Figure 21 - pH 300 Advanced Setup Subgroups Figure 22 - pH 310 Advanced Setup Subgroups 22
7.1 Advanced SET-UP Mode Overview Press the SETUP key to enter Set up mode. Press the MI/▲ or MR/▼ keys to scroll through sub groups. pH 300 meter set up mode P1.0: Memory clear P1.0 Clear all stored readings P2.0: Viewing previous calibration data P2.1 View first calibration point (pH 1.68) P2.2 View second calibration point (pH 4.01) P2.3 View third calibration point (pH 7.00) P2.4 View fourth calibration point (pH 10.01) P2.5 View fifth calibration point (pH 12.45) P3.
pH 310 meter setup mode P1.0: Memory clear P1.0 Clear all stored readings P2.0: Viewing previous calibration data (USA, NIST or DIN standards) P2.1 First calibration point (plus time and date) P2.2 Second calibration point (plus time and date) P2.3 Third calibration point (plus time and date) P2.4 Fourth calibration point (plus time and date) P2.5 Fifth calibration point (plus time and date) P2.6 Sixth calibration point (plus time and date) (only for DIN buffer set) P3.
7.2 P 1.0: Memory Clear (CLr) Use this parameter to clear all memory values when you need to store a new series of values. This lets you avoid confusing the old values with the new ones. NO is the default setting. NOTE: Selecting YES will wipe out all memory. From measurement mode: 1. Press the SETUP key to enter Set Up mode. 2. Press the MI/▲ or MR/▼ keys to scroll through subgroups until you view the parameter P1.0. 3. Press the ENTER key to enter parameter P1.0. 4.
7.3 P2.0: Viewing previous calibration data This mode lets you recall previous calibration data, which helps you know when to re-calibrate your meter. This is a “view only” mode. From measurement mode: 1. Press the SETUP key to enter Set up mode. 2. Press the MI/▲ or MR/▼ keys to scroll through subgroups until you view parameter P2.0. 3. pH 300 meter only: Press the ENTER key repeatedly to view previous calibration data. See Figure 24.
7.4 P3.0: Viewing electrode data Program 3 has two “view only” options that let you check the electrode parameters for diagnostic purposes. From pH measurement mode, you can view the electrode’s offset and slope values. From mV measurement mode, you can view the electrode’s relative mV offset value. P3.1 & P3.2 : Electrode offset and slope From pH measurement mode 1. Press the SETUP key to enter Set Up mode. 2. Press the MI/▲ or MR/▼ keys to scroll through subgroups until you view parameter P3.0. 3.
From mV measurement mode If you are in mV measurement mode, the display shows the relative mV offset. You can adjust the relative mV offset in relative mV calibration mode. See page 12 for instructions. 1. If necessary, press the MODE key to select mV measurement mode. 2. From mV measurement mode, press the SETUP key to enter Set Up mode. 3. Press the MI/▲ or MR/▼ keys to scroll through subgroups until you view parameter P3.0. 4. Press the ENTER key to select parameter 3.1. 5.
7.5 P4.0: Unit configuration This subgroup program allows you to customize the meter to your specific needs. You can program the meter to: 1. Select READY function ON or OFF (pH 310 allows you an additional feature of switching the Auto endpoint function on or off) 2. Select the number of pH calibration points 3. Select between three standard calibration buffer sets (for pH 310 meter only) 4.
P4.1: READY Indicator and auto endpoint function Program P4.1 lets you select “READY indicator on” to indicate when the reading is stable*, or select “READY indicator off” for faster meter response. pH 310 meter only: Program P4.1 also lets you switch the Auto endpoint function on or off. Select auto endpoint on to “hold” the reading when it is stable for more than 5 seconds. The display automatically freezes, and the HOLD indicator appears on the left side of the display.
P4.2: Selecting number of pH calibration points Program P4.2 lets you select the number of calibration points that appear in pH calibration mode: 2, 3, 4, or 5. This lets the meter scroll through the calibration points more quickly if you regularly calibrate at less than 5 points. From measurement mode. 1. 2. Press SETUP key to enter Set Up mode. Press the MI/▲ or MR/▼ keys to scroll through subgroups until you view parameter P4.0. 3. Press the ENTER key twice to select parameter 4.2. 4.
P4.3 Calibration buffer selection sets Available in pH 310 meter only The pH 310 meter lets you select between three standard calibration buffer sets, depending on your requirements. The available sets are USA, NIST, and DIN standard calibration buffers. From measurement mode 1. Press SETUP key to enter Set Up mode. 2. Press the MI/▲ or MR/▼ keys to scroll through subgroups until you view parameter P4.0. 3. Press the ENTER key three times to select parameter 4.3. 4.
P4.4 Selecting °C or °F Available in pH 310 meter only The pH 310 meter lets you select between °C and °F units for temperature readings. From measurement mode 1. 2. Press SETUP key to enter Set Up mode. Press the MI/▲ or MR/▼ keys to scroll through subgroups until you view parameter P4.0. 3. Press the ENTER key four times to select parameter 4.4. 4. Press the MI/▲ or MR/▼ keys to toggle between °C and °F. 5. Press the ENTER key to confirm selection and to return to the subgroup menu.
7.6 P5.0: Resetting to factory default settings Available in pH 300 meter only In the pH 300 meter, Program 5 lets you reset all parameters to factory default settings. This clears all calibration data, memory, and any other setup functions you might have changed. From measurement mode 1. 2. Press SETUP key to enter Set Up mode. Press the MI/▲ or MR/▼ keys to scroll through subgroups until you view parameter P5.0. 3. Press the ENTER key to enter parameter P5.0. See Figure 33. 4.
7.7 P5.0: Setting the real-time clock Available in pH 310 meter only The pH 310 meter features a real-time calendar and clock. This helps you to meet GLP (Good Laboratory Practice) standards. From measurement mode 1. Press SETUP key to enter Set Up mode. 2. Press the MI/▲ or MR/▼ keys to scroll through subgroups until you view parameter P5.0. 3. Press the ENTER key to enter parameter P5.0. The meter lets you select the century: “19—“ or “20—“. The century digits will flash. 4.
12. Press the MI/▲ or MR/▼ keys to toggle to the correct hour. Note the “AM” and “PM” indicator on the lower portion of the display. 13. Press the ENTER key to confirm the hour and move to “minute” selection. The “minute” digits will flash. 14. Press the MI/▲ or MR/▼ keys to toggle to the correct minutes. 15. Press the ENTER key to confirm the minutes and move to “second” digits will flash. See Figure 35. 16. Press the MI/▲ or MR/▼ keys to toggle to the correct seconds. Figure 35 - P5.
7.8 P6.0: Resetting to factory default settings Available in pH 310 meter only In the pH 310 meter, Program 6 lets you reset all parameters to factory default settings. This clears all calibration data, memory, and any other setup functions you might have changed. From measurement mode 1. Press SETUP key to enter Set Up mode. 2. Press the MI/▲ or MR/▼ keys to scroll through subgroups until you view parameter P6.0. 3. 4. Press the ENTER key to enter parameter P6.0.
8 PROBE CARE AND MAINTENANCE Since your pH electrode is susceptible to dirt and contamination, clean it every one to three months depending on the extent and condition of use. NOTE: For specialty electrode care, consult the instruction manual included with your electrode. pH electrode storage For best results, always keep the pH bulb wet. Use the protective electrode storage bottle or rubber cap filled with electrode storage solution to store your electrode.
Reactivating the pH electrode If stored and cleaned properly, your pH electrode should be ready for immediate use. However, a dehydrated bulb may cause sluggish response. To rehydrate the bulb, immerse the electrode in a pH 4 buffer solution for 10 to 30 minutes. If this fails, the electrode requires activation. Never touch or rub glass bulb. Contact builds up an electrostatic charge.
9 TROUBLE SHOOTING GUIDE Problem Cause Solution Power on but no display a). Batteries not in place a). Check that batteries are in place and making good contact. b). Batteries not in correct polarity (+ and – position). b). Re-insert batteries with correct polarity. c). Weak batteries c). Replace batteries or attach optional AC adapter. a). Air bubbles in probe. a). Tap probe to remove bubbles. b). Dirty probe. b). Clean the probe and re-calibrate. c). Probe not deep enough in sample. c).
10 ERROR MESSAGES LCD Display Indicates Cause Solution Err annunciator Unrecognized input from keypad Wrong input in selected mode. Release key. Select valid operations depending on mode. CAL & Err annunciators on / Buffer and electrode indicators blink. Calibration error. Wrong value input at calibration. Check your input value, clean probe. Dirty probe. See Calibration sections or Probe Maintenance section. Battery indicator blinks Low battery level.
11 SPECIFICATIONS SPECIFICATIONS DESCRIPTIONS pH 300 pH 310 pH Range -2.00 to 16.00 pH Yes Yes 0.01 pH / ± 0.01 pH Yes Yes 80 to 110% Yes Yes -10 to 110 °C Yes Yes (14 to 230 °F) No Yes Resolution / Accuracy Slope Range Temperature Range Resolution / Accuracy Millivolt Range (Extended) Resolution / Accuracy Millivolt Range 0.1 °C / ± 0.5 °C (0.1 °F / 0.5 °F) Yes Yes -199.9 to +199.9 mV Yes Yes 0.1 mV / ± 0.
12 ACCESSORIES Replacement Meter and Meter accessories Item Eutech Instruments Order Code Oakton Instruments Order Code Waterproof pH 300 Hand-held pH meter in carrying case kit. Complete with temperature probe, pH electrode (1m cable) and pH carrying kit set. EC-PHWP300/02K 35617-70 Waterproof pH 310 Hand-held pH meter in carrying case kit. Complete with temperature probe, pH electrode (1m cable) and pH carrying kit set. EC-PHWP310/02K 35618-72 Hard plastic carrying case kit for pH 300/310 meter.
Calibration Solutions Item Eutech Instruments Order Code pH 4.01 buffer solution, 480 ml bottle (1 pint) EC-BU-4BT Oakton Instruments Order Code 00654-00 pH 7.00 buffer solution, 480 ml bottle (1 pint) EC-BU-7BT 00654-04 pH 10.01 buffer solution, 480 ml bottle (1 pint) EC-BU-10BT 00654-08 pH 4.01 buffer sachets, 20 ml x 20 pcs. EC-BU-4BS 35653-01 pH 7.00 buffer sachets, 20 ml x 20 pcs. EC-BU-7BS 35653-02 pH 10.01 buffer sachets, 20 ml x 20 pcs.
Carrying Case Kit for pH 300/310 45
13 ADDENDUM 1: METER FACTORY DEFAULT SETTINGS Resetting the meter to factory default settings clears all calibration data and most other setup functions you might have changed. The following settings will remain as you have set them: • Temperature unit of measure (°C or °F) – only for pH 310 meter • The temperature offset calibration value. • Clock function – only for pH 310 meter Type CLr Parameter Memory clear P No. P1.
14 WARRANTY This meter is supplied with a three -year warranty, six-month warranty for probe, against significant deviations in material and workmanship. If repair or adjustment is necessary and has not been the result of abuse or misuse within the designated period, please return – freight pre-paid – and correction will be made without charge. Eutech Instruments/ Oakton Instruments will determine if the product problem is due to deviations or customer misuse.
15 RETURN OF ITEMS Authorization must be obtained from our Customer Service Department or authorized distributor before returning items for any reason. A “Return Goods Authorization” (RGA) form is available through our authorized distributor. Please include data regarding the reason the items are to be returned. For your protection, items must be carefully packed to prevent damage in shipment and insured against possible damage or loss.
For more information on Eutech Instruments/ Oakton Instruments’ products, contact your nearest distributor or visit our website listed below: Oakton Instruments P.O Box 5136, Vernon Hills, IL 60061, USA Tel: (1) 888-462-5266 Fax: (1) 847-247-2984 E-mail: info@4oakton.com Web-site: www.4oakton.com www.oaktoninstruments.com Eutech Instruments Pte Ltd. Blk 55, Ayer Rajah Crescent, #04-16/24 Singapore 139949 Tel: (65) 6778 6876 Fax: (65) 6773 0836 E-mail: marketing@eutechinst.com Web-site: www.eutechinst.
