Autocalibration function recognizes standards and is user-selectable for either one or two-point calibration. Single channel meter for pH measurement. No data output feature.
Electrode recommendation: Model 9625-10D
Temperature compensation
Portable pH meter D-71.  
Features
- The built-in data memory (1000 items)
- Automatic calibration and calibration interval alarm function
- Usable with both 5-point calibration and USA/NIST standard solutions.
- Sample ID No. setting function
- Clock function and auto power-off function
- Usable with AAA alkaline batteries, Ni-MH batteries, or adapter.
- IP67-compliant waterproof and dustproof structure*.
- ELECTRODE NOT INCLUDED.
*IP67:Ensures a waterproof performance without failure when immersed 1m in water for about 30 minutes
Specifications
MODEL | D-71 | pH | Measuring principle | Glass electrode method | Measuring range | pH 0.00?14.00 | Display range | -2.00?16.00 ? Flashing in the case of outside measurement range. | Resolution | 0.01 pH | Repeatability | ±0.01 pH ± 1digit | Auto calibration (5 points) | ? | Calibration record | ? | Standard solution Auto-detect | ? | USA/NIST selectable | ? | Calibration interval alarm | ? | Temperature | Measuring range (Display) | 0.0? ? 100.0??-30? ? 130??? ? Flashing in the case of outside measurement range. | Resolution | 0.1? | Repeatability | ±0.1?±1digit | Calibration function | ? | Display | Custom LCD | Function | PC connectivity | × | Printer connectivity?GLP / GMP? | × | Temperature compensation ?Auto / manual) | ? | Auto Hold function | ? | Data memory number | 1000 | Interval memory | × | ID input | ? | Clock function | ? | Auto power off | ? | Battery Level Indicator | ? | Dustproof and waterproof standard | IP67 | Operating ambient temperature / humidity | 0? to 45? , 80% or less in relative humidity (no condensation) | Power | LR03 / AAA alkaline batteries or AAA Ni-H rechargeable batteries × 2 AC adapter 100 V to 240 V 50/60 Hz (option) | Current consumption | Less than 1 mA | Battery life*1 | Approx. 1000 hours | Dimension | Approx. 67 (80) × 28 (42) × 170 mm (The figures in parentheses are maximum thicknesses.) | Weight (without batteries and electrode) | Approx. 270 g |
Schematics
  
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