Manufacturer: Hanna Instruments
Part Number: 98129
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The Hanna pen is a waterproof pH/EC/TDS/temperature meter. The housing has been completely sealed against humidity and designed to float. All pH and EC/TDS readings are automatically temperature compensated (ATC), and temperature values can be displayed in °C or °F units. For EC/TDS readings, the EC/TDS conversion factor (CONV) is selectable by the user, as well as the temperature compensation coefficient b (BETA). The meters can be calibrated at one or two points for pH (with auto-buffer recognition and against five memorized buffer values), and at one point for EC.
Measurements are highly accurate with a unique stability indicator right on the LCD. These meters are also provided with battery level indication at start-up, and with a low battery symbol which warns the user when the batteries need to be replaced. In addition the Battery Error Prevention System (BEPS) avoids erroneous reading caused by low voltage level by turning the meter off.
The HI 73127 pH electrode, supplied with the meter, is interchangeable and can be easily replaced by the user. The stainless steel encapsulated temperature sensor facilitates faster and more accurate temperature measurement and compensation.
Key Features
- Waterproof and designed to float
- Cloth, renewable junction
- Close proximity temperature probe
- Automatic Temperature Compensation
- Automatic 1 or 2 point pH calibration
- Tactile grip casings
- HOLD function
- BEPS (Battery Error Prevention System)
- Battery % displayed at startup
- Automatic shut-off
- Efficient two button operation
- Temperature in ° C or ° F; easily switch between Celsius and Fahrenheit readouts
Range
- 0.0 to 60.0° C / 32.0 to 140.0° F
- 0.00 to 14.00 pH
- 0 to 3999 μS/cm
- 0 to 2000 ppm
Resolution
- 0.1° C / 0.1° F
- 0.01 pH
- 1 μS/cm ; 1 ppm
Accuracy (@20° C/68° F)
- ±0.5° C / ±1° F
- ±0.05 pH
- ±2% f.s. (EC/TDS)
Typical EMC Deviation
- ±0.5° C / ±1° F
- ±0.02 pH
- ±2% f.s. (EC/TDS)
Temperature Compensation
- automatic, with b=0.0 to 2.4%/º C (EC/TDS)
Environment
- 0 to 50° C (32 to 122° F); RH 100%
TDS Factor
- 0.45 to 1.00 (CONV)
Calibration
- Automatic, 1 or 2 point with 2 sets of memorized buffers (pH 4.01/7.01/10.01 or 4.01/6.86/9.18) for pH
- Automatic, at 1 point for EC/TDS
Electrode
- HI 73127 pH electrode
Battery Type/Life
- 4 1.5V with BEPS/approximately 100 hours
Auto-off
- After 8 minutes of non-use
Dimensions
- 163 x 40 x 26 mm (6.4" x 1.6" x 1.0”)
Weight
- 100 g (3.5 oz.)