Dual-Input pH/ORP/ISE/EC/Resistivity/TDS/NaCl/Temperature Bench Meter
HI3512 is a dual-input professional pH/ORP/ISE/EC/Resistivity/TDS/NaCl/Temperature bench meter with a graphic LCD designed to provide high accuracy and ease of use both in the laboratory as well as in harsh industrial conditions. This instruments is a dual-input model measuring pH, ORP, or ISE and temperature on channel 1 and EC, Resistivity, TDS, and Salinity (utilizing an EC probe) on channel 2. A Relative mV feature is also available.
This meter features Hanna’s exclusive Calibration Check™, a diagnostics system that ensures accurate readings every time. Calibration Check system eliminates erroneous readings due to dirty or faulty pH electrodes or contaminated buffer solution by alerting users of potential problems during the calibration process.
Throughout the calibration process, users are guided step-by-step by the on-screen tutorial. After calibration, a probe condition indicator is displayed on the LCD informing the user of the overall electrode status.
A variety of interactive user support is available before, during and after measurement. Onscreen tutorials guide users through set-up, calibration and measurement while context sensitive help of any screen is available at a push of a button. The HELP screen accessed by a dedicated HELP button, includes language specific assistance for menu parameters, calibration, log, contact information and accessories for your instrument.
Main Features:
• Dual-input channel
- pH/mV/ISE and temperature measurements (Channel 1)
- EC/TDS, NaCl/Resistivity and temperature measurements (Channel 2)
• Up to 5 point pH calibration with 7 standard buffers and 2 custom buffers to choose from
• Up to two points EC calibration with 7 memorized standards for calibration to choose from
• Messages on the graphic LCD for an easy and accurate calibration
• Diagnostic features to alert the user when the electrode needs cleaning
• Relative mV measurements
• Log on demand up to 400 samples
• Log interval with log on stability feature up to 600 records
• Auto Hold feature, to freeze first stable reading on the LCD
• GLP, last calibration data for pH, Rel mV, ISE, EC, or NaCl
• PC interface
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SKU |
HI3512 |
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Product Name |
Dual-Input pH/ORP/ISE/EC/Resistivity/TDS/NaCl/Temperature Bench Meter |
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pH Range |
-2.0 to 20.0 pH / -2.00 to 20.00 pH / 2.000 to 20.000 pH |
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pH Resolution |
0.1 pH / 0.01 pH / 0.001 pH |
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pH Accuracy |
±0.01 pH / ±0.002 pH |
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pH Calibration |
Up to 5 points / 7 Standard Buffers (1.68, 4.01, 6.86, 7.01, 9.18, 10.01, 12.45) / 2 Custom buffers |
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ORP Range |
±2000.0 mV |
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ORP Resolution |
0.1 mV |
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ORP Accuracy |
±0.2 mV |
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ISE Range |
1.00x10-7 to 9.99x1010 conc. |
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ISE Resolution |
3 digits 0.01, 0.1, 1, 10 conc. |
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ISE Accuracy |
±0.5% of reading (monovalent ions) / ±1% of reading (divalent ions) |
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ISE Calibration |
Up to 5 points / 6 standards (0.1, 1, 10, 100, 1000, 10000 ppm) |
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Temperature Channel 1 Range |
-20.0 to 120.0 °C (-4.0 to 248.0 °F) |
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Temperature Channel 1 Resolution |
0.1 °C (0.1 °F) |
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Temperature Channel 1 Accuracy |
±0.2 °C (±0.4 °F) (excluding probe error) |
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Rel mV offset range |
±2000 mV |
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Slope calibration |
From 80 to 110% |
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pH Temperature Compensation |
Manual / Automatic |
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Electrode |
Hanna BNC connection pH / ORP / ISE electrodes |
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Temperature Probe |
RCA connection / Recommended option |
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EC Range |
0 to 400 mS/cm (shows values up to 1000 mS/cm) / Actual conductivity 1000 mS/cm |
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EC Resolution |
0.001 μS/cm |
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EC Accuracy |
±1% of reading (±0.01 µS/cm or 1 digit, whichever is greater) excluding probe error |
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EC Calibration |
Up to 2 points / 7 Standards (0.00 µS/cm, 1.413 mS/cm, 5.00 mS/cm, 12.88 mS/cm, 111.8 mS/cm) |
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Resistivity Resolution |
1.0 to 99.9 ohms |
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Resistivity Accuracy |
0.1 ohm |
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Resistivity Calibration |
±1% of reading (±10 ohms or 1 digit, whichever is greater) excluding probe error |
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TDS Range |
0.000 to 9.999 ppm |
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TDS Resolution |
0.001 ppm, 0.01 ppm, 0.1 ppm, / 0.001 g/L, 0.01 g/L, 0.1 g/L |
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TDS Accuracy |
±1% of reading (±0.05 ppm or 1 digit, whichever is greater) excluding probe error |
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TDS Factor |
0.40 to 1.00 |
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Salinity Range |
% NaCL: 0.0 to 400.0 % |
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Salinity Resolution |
0.1% |
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Salinity Accuracy |
±1% of reading (excluding probe error) |
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Temperature Channel 2 Range |
-20.0 to 120.0 °C (-4.0 to 248.0 °F) |
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Temperature Channel 2 Resolution |
0.1 °C (0.1 °F) |
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Temperature Channel 2 Accuracy |
±0.2 °C (±0.4 °F) (excluding probe error) |
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NaCl Calibration |
Max. 1 point only (with HI7073 standard) |
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EC probe |
DIN connection / Recommended option |
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Temperature Source |
Automatic / Manual |
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EC Temperature Compensation |
NoTC, MTC, ATC |
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Reference temperature |
15, 20, 25 °C |
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Log on demand |
400 samples |
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Lot logging |
5, 10, 30 seconds / 1, 2, 5, 10, 15, 30, 60, 120, 180 minutes, AutoEnd (maximum 600 samples) |
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Environment |
0 to 50 °C (32 to 122 °F) / max. RH 55% non-condensing |
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Power Supply |
12 Vdc power adapter |
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PC Interface |
opto-isolated USB |
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Dimensions |
235 x 207 x 110 mm (9.2 x 8.14 x 4.33 in.) |
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Weight |
1.8 Kg (4.1 lbs) |