Specifications HI981420 pH Range 0.00 to 14.00 pH; 0.0 to 14.0 pH Resolution 0.01 pH; 0.1 pH Accuracy ±0.05 pH, ±0.1pH Calibration one or two-point calibration (using pH 4.01, 7.01, 10.01 buffers) using auto buffer recognition; one-point calibration using quick calibration solution Temperature Compensation automatic from 0.0 to 60.0°C (32.0 to 140.0°F) EC Range 0.00 to 10.00 mS/cm Resolution 0.01 mS/cm Accuracy ±0.1 mS/cm from 0.00 to 5.00 mS/cm; ±0.2 mS/cm from 5.00 to 10.00 mS/cm) Calibration one-point at 1.41 mS/cm or 5.00 mS/cm using auto standard recognition; one-point calibration using quick calibration solution Temperature Compensation automatic, with β = 1.9%/°C TDS Range 0 to 5000 ppm (0.5 TDS Factor)*; 0 to 7000 ppm (0.7 TDS Factor)* Resolution 10 ppm (mg/L) Accuracy ±2%FS Calibration through EC calibration Conversion Factor (CF) 0.5 (500 ppm) or 0.7 (700 ppm) Temperature Range 0.0 to 60.0°C/32.0 to 140.0°F Resolution 0.1°C/0.1°F Accuracy ±0.5°C/±1°F Probe Description HI1285-8 pH/EC/TDS/temperature polypropylene body, pre-amplified multiparameter probe with internal temperature sensor DIN connector and 2 m (6.6’) cable Max Pressure 0.2 bar Range 0 to 13 pH Ingress protection IP68 (continous immersion up to 2 meters) Dimensions 187 x 25 x 25mm (7.36 x 0.98 x 0.98”) Weight 191g ( 7.7oz.) Additional Specifications Automatic Logging measurements (pH, EC, TDS, Temperature) min/max/average/status logged continuously at 15 minutes interval, recall graphic modes Data Export export on USB-C flash drive or PC; log files in CSV format Data Storage 30 days stored data at 15 minutes interval Display 128 x 64 pixel B/W LCD with green backlight, Automatic backlight dimming using ambient light sensor. GLP Good Laboratory Practice with last 5 pH and EC calibration history. Monitor Ingress Protection IP65 (dust and low pressure water jets) Alarms high and low with enable/disable option for all parameters. USB-C (Host/Device) Export logged data on USB flash drive / PC Power Supply 12VDC adapter (included) Environment 0 to 50°C (32 to 122°F), RH max 95% non-condensing Dimensions 125 x 185 x 38 mm (4.92 x 7.28 x 1.49”) Weight 333g ( 11.7oz.) Ordering Information HI981420-01 (115V) and HI981420-02 (230V) is supplied with HI1285-8 multiparameter probe, Quick Cal buffer solution sachets (2), HI700661 electrode cleaning solution sachets for agriculture (2), power adapter, quality certificates, and instruction manual. Supplied Complete HI981420 GroLine Monitor is supplied with all the tools necessary so you can start monitoring right away. *Note: 1000 μS/cm = 500 ppm with 0.5 TDS Factor = 700 ppm with 0.7 TDS Factor pH solutions begin on page 2.158; Quick Cal solutions begin on page 2.165; EC and TDS solutions begin on page 5.34; see pH electrode specifications on page 1.72 1 Testers and Monitors 1.63 www.hannainst.com | monitors
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