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Home > Conductivity/TDS > Conductivity/TDS Portable Meters

HI 9835

Portable EC/TDS/NaCl/°C Meter


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  • Autoranging, manual ranging and range lock
  • Four ring probe design
  • Automatic, manual and no Temperature Compensation
  • Auto endpoint; Automatically freezes stable readings on the LCD display
  • GLP features
  • BEPS; (Battery Error Prevention System) alerts the user in the event that low battery power could adversely affect readings
  • On-screen user guides
  • Backlit display
  • % Battery displayed on startup



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.

 

Order Information:
HI 9835 is supplied with HI 76309 conductivity probe, batteries, instructions and rugged carrying case.

  • Specifications
  • Accessories
  • Downloads
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)
NaCl 0.1%
Temperature 0.1°C
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)
Temperature
Compensation
  automatic or manual from –20.0 to 120.0 ºC (-4.0 to 248.0ºF) (can be disabled for measuring conductivity)
Temperature
Coefficient
  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)
Electrodes
HI 76309 4-Ring Potentiometric Probe
with 1 m (3.3') cable
Solutions
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
Accessories
HI 92000 Windows® Compatible Software
Probes
HI 76309/1.5 4-Ring Potentiometric Probe
with 1.5 m (4.9') cable

Manual: (Download)

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Product Accessories

Electrodes
HI 76309
4-Ring Potentiometric Probe
with 1 m (3.3') cable
Solutions
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

Product Manuals
  Manual: Download





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