Instruction Manual pH 700 pH/mV/°C/°F Bench Meter Ion 700 pH/mV/Ion/°C/°F Bench Meter Technology Made Easy ... Part of Thermo Fisher Scientific 68X541701 Rev.
TABLE OF CONTENTS 1. INTRODUCTION .............................................................. 1 2. GETTING STARTED........................................................ 2 2.1 2.2 2.3 Keypad Functions ................................................................... 2 LCD Annunciators ................................................................... 3 Meter Connections .................................................................. 3 3. CALIBRATION ..............................................
1. INTRODUCTION Thank you for purchasing our pH 700 / Ion 700 series benchtop meter. These microprocessor-based meters are economical and simple to use. The design incorporates a large LCD for clear viewing, yet offers a small footprint to conserve space. The pH 700 measures pH, mV (ORP), and temperature (ºC or ºF). In addition to these parameters, the Ion 700 features direct ion concentration measurement of various ions (mono and divalent).
2. GETTING STARTED 2.1 Keypad Functions Powers the meter on and off. Upon power on, the meter automatically begins in the mode that was last used. Calibration and memory values are retained even if meter is unplugged. Toggle between available measurement modes; pH/Temp, mV/Temp, or ppm/mV (Ion 700 only). Also used to switch from pH to Temp during pH calibration mode. Press and hold for 5 seconds to enter SETUP mode. Toggles between measurement and calibration modes.
2.2 LCD Annunciators 2.3 Meter Connections pH BNC connection for pH, ORP (Redox), or Ion Selective Electrodes (ISE). REF Pin connection for half cell reference electrodes. Requires separate half cell BNC electrode. Note: REF is not commonly used and is not required. ATC For Automatic Temperature Compensation probe. DC Power supply.
3. CALIBRATION 3.1 pH Calibration For best results, periodic calibration with known accurate standards is recommended. Calibrate with standards that bracket your intended measuring range while including a neutral standard (pH 7.00 or 6.86). For example, if you expect to measure samples from pH 6.2 to pH 9.5, calibration with 4.01, 7.00, and 10.01 will work well. The 700 series meters can be calibrated with up to 5 buffers. The non-volatile memory retains all calibration values upon meter shut down.
4) To calibrate another buffer repeat step 3) or press to return to the measurement mode. Note: The meter will automatically return to measurement mode upon successful completion of the number of specified calibration points. To specify a different number of pH calibration points see Section 5.6. Additional notes: A single point (offset) calibration is only allowed with pH 7.00 or pH 6.86 buffers. When the first calibration value is accepted during a new calibration, all prior calibration values are erased.
3.3 Millivolt (mV) Offset Adjustment Oxidization Reduction Potential (ORP or Redox) is not a precise measurement, but is useful as a relative indicator. As such, mV offset adjustment is not meant to enhance accuracy, but rather to make readings comparable to a reference.
1) Connect the ISE and press as needed to select ppm. Note: The primary reading will show “- - - -” without a stored ion calibration. The secondary value is the corresponding mV reading of the ISE. 2) Dip the ISE into your lowest standard solution value and stir. Press when the secondary reading is stable. or to match the primary display to your corresponding 3) Press ion calibration value (0.10, 1.0, 10, etc). 4) Press to accept or to abort.
2) To recall data from memory, press stored data is displayed first. Press the desired data, then press . The location of the most recent or to select the location of to accept. 3) Press to return to the stored data location. Press to return to measurement mode. To erase stored data, see Section 5.8. 5. SETUP FUNCTIONS Use the set up mode to customize your instrument operation. During measurement, press and hold for 5 seconds to enter SETUP mode. Press or to change programs or change options.
Note: When multiple slopes exist, the slope that is available to view will depend on the measured value before entering SETUP mode. For example, if pH calibration values pH 4.01, 7.00 and 10.01 were completed, there will be two slope values; one that corresponds to pH values below 7.00 and another that corresponds to pH values above 7.00. If the measured pH value was 5.23 when setup mode was entered, the pH slope that corresponds to values lower than 7.00 will be available to view.
5.6 P3.3 buFF (pH Buffers & Calibration Points) Press . Press or to select “USA” or “NIST” buffer group (pH mode only). Press or to select number of Calibration Points (pH and Ion only). Press to confirm. 5.7 P4.0 rSt (Reset) Press . Press or to select “Yes” or “No”. If “Yes”, press or to select “Cal” (calibration reset only) or “FCt” (complete reset to factory default settings). Press to confirm. 5.8 P5.0 CLr (Clear Memory) Press . Press or Press to confirm.
6. TROUBLESHOOTING GUIDE PROBLEM CAUSE SOLUTION a) Main power not switched on. a) Switch on the power supply. b) AC Adapter socket not inserted properly. b) Re-insert AC Adapter & press a) Insufficient reference electrolyte in electrode. a) Fill electrode with reference electrolyte. b) Broken electrode. b) Replace electrode. c) External ‘noises’ or induction (e.g. electrical ‘noise’ caused by a nearby motor). c) Remove or switch off interfering device. d) Dirty electrode.
CAUSE SOLUTION From any screen Invalid key; Button does not work in the current operation mode. Press alternate key. Select valid buttons depending on mode. Ion CAL mode Ion slope calibration error; calibration solutions are outside acceptable range (15 to 90 mV per decade). Recalibrate using fresh ion solutions. Use required ISA. Replace electrode. Ion CAL mode Calibration points are more than 1 decade apart. Recalibrate using consecutive calibration values 1 decade apart (ex. 1.0 and 10.0).
7. ION SELECTIVE ELECTRODES Contact our partners for more details regarding ISE and related solutions. The table below lists the most common electrodes available.
8. SPECIFICATIONS pH Range 0.00 to 14.00 pH Resolution 0.01 pH 0.01 pH + 1 count Accuracy Calibration Points Buffer Options Up to 5 points with Auto-buffer recognition USA : pH 1.68, 4.01, 7.00, 10.01,12.45 NIST: pH 1.68, 4.01, 6.86, 9.18 ,12.45 Slope Display Yes (with offset) 2000 mV mV Range Resolution Accuracy 0.1 mV ( 199.9 mV), 1 mV beyond 200 mV 0.2 mV ( 199.9 mV), 2 mV beyond 200 mV Offset Adjustment Temperature Range Up to ±150 mV 0.0 to 100.0 ºC / 32.0 to 212.
9. WARRANTY This meter is supplied with a warranty against significant deviations in material and workmanship for a period of THREE years from date of purchase whereas probe with a SIX month warranty. If repair or adjustment is necessary and has not been the result of abuse or misuse within the designated period, please return – freight prepaid – and correction will be made without charge. Eutech Instruments/Oakton Instruments will determine if the product problem is due to deviations or customer misuse.
For more information on our products, please contact our channel partner or visit our websites listed below: Oakton Instruments 625 E Bunker Court Vernon Hills, IL 60061 USA Tel: (1) 888-462-5866 Fax: (1) 847-247-2984 info@4oakton.com www.4oakton.com Eutech Instruments Pte Ltd Blk 55, Ayer Rajah Crescent, #04-16/24 Singapore 139949 Tel: (65) 6778 6876 Fax: (65) 6773 0836 eutech@thermofisher.com www.eutechinst.com Distributed by: sales@novatech-usa.com www.novatech-usa.
