HI763100 – Digital EC/Temperature Electrode

Built-in Microchip

The built-in microchip stores sensor type, serial number and calibration information including date, time, offset, slope, probe condition and buffers used. This information is automatically retrieved by edge® once the electrode is plugged in. The ability to transfer information allows for hot swapping of probes without having to recalibrate. All pH measurements are performed within the electrode and transferred digitally to the meter. This overcomes any noise issues associated with the traditional high impedance analog measuring system. Electrical noise can be generated from a built in temperature sensor and while working in a humid environment.

Potentiometric Measuring System

The four ring potentiometric measuring system allows measurement of a broad range of samples while minimizing the effects of polarization. The two outer rings apply and alternating voltage and induce a current loop in the solution, while the two inner rings measure the voltage drop induced by the current loops. This allows for a range of readings from very high to very low without changing electrodes.

Sleeve

The probe is surrounded by a chemically resistant plastic sleeve to maintain control external interferences from the sample. It also allows the current loop to be generated in a controlled area.

Internal Temperature Sensor

Since temperature is an important factor for measuring conductivity, a built in temperature sensor on the probe is very helpful. There is no need for an external temperature probe, so that measurements can be made easily. The coefficient used to correct for changes in temperature is β, which is expressed as a percentage of reading per degree of Celsius.

Features at-a-glance

Digital, microprocessor based – no high impedance signal to the meter
Potentiometric measuring system- suitable over a wide range of conductivities
Built-in temperature sensor – no need for an additional temperature probe
3.5mm digital plug – easy to plug in, no alignment necessary
PEI body – highly durable and well-suited for field applications

SKU	HI2003-01
Name	® Dedicated Conductivity/TDS/Salinity Meter – HI2003
EC Range	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 (absolute EC)**
EC Resolution	0.01 µS/cm, 0.1 µS/cm, 1 µS/cm, 0.01 mS/cm, 0.1 mS/cm
EC Accuracy	±1% of reading (±0.05 µS/cm or 1 digit, whichever is greater)
EC Calibration	1 point offset calibration (0.00 µS/cm in air), 1 point slope calibration in EC standard 84 µS/cm, 1413 µS/cm, 5.00 mS/cm, 12.88 mS/cm, 80.0 mS/cm and 111.8 mS/cm
TDS Range	0.00 to 14.99 ppm (mg/L), 15.0 to 149.9 ppm (mg/L), 150 to 1499 ppm (mg/L), 1.50 to 14.99 g/L, 15.0 to 100.0 g/L, up to 400.0 g/L (absolute TDS)**
TDS Resolution	0.01 ppm, 0.1 ppm, 1 ppm, 0.01 g/L, 0.1 g/L
TDS Accuracy	±1% of reading (±0.03 ppm or 1 digit, whichever is greater)
TDS Calibration	through EC calibration
EC/TDS Temperature Compensation	Automatic -5 to 100º C (23 to 212º F); NoTC – none absolute conductivity.
Temperature Correction Coefficient	0.00 to 6.00% / ºC (for EC and TDS only). Default value is 1.90% / ºC
EC to TDS Conversion Factor	0.40 to 0.80 (default value is 0.50)
Salinity (% NaCl) Range	0.0 to 400.0% NaCl
Salinity (% NaCl) Resolution	0.1% NaCl
Salinity (% NaCl) Accuracy	±1% of reading
Salinity (% NaCl) Calibration	Single point with HI 7037L Standard
Salinity (PSU) Range	2.00 to 42.00 PSU
Salinity (PSU) Resolution	0.01 PSU
Salinity (PSU) Accuracy	±1% of reading
Salinity Range	0.0 to 80.0 g/L*
Salinity Resolution (ppt)	0.01 g/L
Salinity Accuracy (ppt)	±1% of reading
Temperature Range	-20.0 to 120.0 ºC ; -4.0 to 248.0 °F**
Temperature Resolution	0.1 ºC; 0.1 ºF
Temperature Accuracy	±0.5 ºC; ±0.9 ºF
EC/TDS Probe	HI763100 EC/temperature probe
Logging Type	Manual Log on Demand (Max. 200 logs); Manual Log on Stability (Max. 200 logs); Interval Logging 100 lots, Max. 600 logs/lot
Logging Memory	Up to 1000 records
Connectivity	1 micro USB port for charging and PC connectivity, 1 USB port for storage
GLP	yes
Battery Type/Life	Built-in rechargeable battery with up to 8 hours of continuous use
Power Supply	5 VDC adapter (included)
Environment	0 to 50°C (32 to 122°F), RH max 95% non-condensing
Dimensions	202 x 140 x 12.7mm (8” x 5.5” x 0.5”)
Weight	250 g (8.82 oz)

®EC HI2003 includes: HI763100 Conductivity probe, 4 sachets of 1413 µS/cm conductivity standard, 2 sachets of 5000 µS/cm conductivity standard, 2 sachets of 12880 µS/cm conductivity standard, 2 sachets general purpose rinse solution, benchtop docking station with electrode holder, wall-mount cradle, USB cable, 5 VDC power adapter, quality certificate and instruction manual.

® Dedicated Conductivity/TDS/Salinity Meter – HI2003