Specifications HI981421 pH Range 0.00 to 12.00 pH, 0.0 to 12.0 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: 0.0 to 60.0ºC; 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 HI1285-9 triple junction inline pH/EC/TDS temperature PVC body, pre-amplified multiparameter probe with internal temperature sensor, DIN connector, 3 m (9.8’) cable Max Pressure 8 bar Range 0 to 12 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 Waterproof 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 HI981421-01 (115V) and HI981421-02 (230V) is supplied with HI1285-9 multiparameter probe, Quick Cal buffer solution sachets (2), HI700661 electrode cleaning solution sachets for agriculture (2), 12VDC power adapter, quality certificates and instruction manual. 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 *Note: 1000 μS/cm = 500 ppm with 0.5 TDS Factor = 700 ppm with 0.7 TDS Factor Supplied Complete HI981421 GroLine Monitor is supplied with all the tools necessary so you can start monitoring right away. 1 Testers and Monitors 1.59 www.hannainst.com | monitors
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