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HI 9835 is handheld conductivity/TDS/salinity/temperature meters. Users are provided with a series of diagnostic features and messages on the LCD which guide the user through calibration, operation and troubleshooting.
Conductivity and TDS measurement parameters are selectable such as: cell constant range from 0.500 to 1.700, temperature coefficient from 0.00 to 6.00%/ºC, temperature reference from 20 to 25ºC and a selectable TDS factor of 0.40 to 0.80.
This instrument utilizes the four ring HI 76309/1.5 conductivity probe with internal temperature sensor. The four ring design offers accurate readings over all the conductivity range with immunity to polarization and falling that occurs on long term use of amperometric probes.
The autoranging feature of the EC and TDS modes automatically sets the meter to the scale with the highest possible resolution. The auto endpoint feature automatically freezes the display once a stable reading is reached.
HI 9835 is supplied with HI 76309 conductivity probe, batteries, instructions and rugged carrying case.
|Range||EC||0.00 to 29.99 µS/cm; 30.0 to 299.9 µS/cm; 300 to 2999 µS/cm; 3.00 to 29.99 mS/cm; 30.0 to 200.0 mS/cm; up to 500.0 mS/cm (actual EC)*|
|TDS||0.00 to 14.99 mg/L (ppm); 15.0 to 149.9 mg/L (ppm); 150 to 1499 mg/L (ppm); 1.50 to 14.99 g/L (ppt); 15.0 to 100.0 g/L (ppt); up to 400.0 g/L (ppt) (actual TDS)* with 0.80 conversion factor|
|NaCl||0.0 to 400.0%|
|Temperature||–20.0 to 120.0 ºC (-4.0 to 248.0ºF)|
|Resolution||EC||0.01 µS/cm; 0.1 µS/cm; 1 µS/cm; 0.01 mS/cm; 0.1 mS/cm|
|TDS||0.01 mg/L (ppm); 0.1 mg/L (ppm); 1 mg/L (ppm); 0.01 g/L (ppt); 0.1 g/L (ppt)|
|Accuracy @ 25°C||EC||±1 % of reading (±0.05 µS/cm or 1 digit)|
|TDS||±1 % of reading (±0.03 mg/L (ppm) or 1 digit, whichever greater)|
|NaCl||±1% of reading|
|Temperature||±0.2°C (excluding probe error)|
|Calibration||EC||automatic, one point with six memorized values (84, 1413, 5000, 12880, 80000, 111800 µS/cm)|
|NaCl||one point with HI 7037 calibration solution|
|Temperature||two point, at 0 and 50°C (32 and 122°F)|
|automatic or manual from –20.0 to 120.0 ºC (-4.0 to 248.0ºF) (can be disabled for measuring conductivity)|
|selectable from 0.00 to 6.00%/ºC (EC and TDS only); default value is 1.90%/ºC|
|TDS Factor||selectable from 0.40 to 0.80 (default value is 0.50)|
|Probe||HI 76309 four ring conductivity probe with internal temperature sensor, DIN connector and 1 m (3.3’) cable (included)|
|Power Supply||1.5V AAA batteries (3) /approximately 200 hours of continuous use without backlight (50 hours with backlight on); auto-off after 5, 10, 20 and 60 minutes (can be disabled)|
|Environment||0 to 50°C (32 to 122°F); RH max 95%|
|Dimensions||185 x 72 x 36 mm (7.3 x 2.8 x 1.4”)|
|Weight||300 g (10.6 oz)|
|HI 76309||4-Ring Potentiometric Probe
with 1 m (3.3') cable
|HI 7030L||12880 µS/cm EC Solution, 500 mL Bottle|
|HI 7031L||1413 µS/cm EC Solution, 500 mL Bottle|
|HI 7033L||84 µS/cm EC Solution, 500 mL Bottle|
|HI 7039L||5000 µS/cm EC Solution, 500 mL Bottle|
|HI 7034L||80000 µS/cm EC Solution, 500 mL Bottle|
|HI 7035L||111800 µS/cm EC Solution, 500 mL Bottle|
|HI 7037L||Calibration Solution for % Readings (100% NaCl)|
|HI 7061L||General Purpose Cleaning Solution
1 x 500 mL bottle
|HI 92000||Windows® Compatible Software|
|HI 76309/1.5||4-Ring Potentiometric Probe
with 1.5 m (4.9') cable