อุปกรณ์วัด Conductivity/TDS (Conductivity Bench with graphic display)

HI 4321-02
Conductivity Bench with graphic display

HANNA presents a new family of benchtop instruments which, thanks to its many functions and advanced features are able to meet all the needs of laboratories and research departments. Among the main features include the large color graphic display (240 x 320 pixels) with on-screen help, simultaneous graphing, language selection and configuration customization.
For the analysis of conductivity  HI 4321 allows measurements in four different scales: EC,  resistivity, TDS and salinity . For the analysis of EC is PU2 rely on a wide scale by 0001  S / cm to 1 S / cm, with automatic recognition of the type of probe used. The measures salinity can be viewed as salinity  practice, natural sea water or percentage scale.
Another key feature of this tool  the possibility to perform the three stages of analysis required by the United States Pharmacopeia for the quality  water (USP). HI 4321-01 with USB and RS 232 interface for connection to PC and provides storage functions and GLP (Good Laboratory Practice).

 Specifications

Range EC    0.000 to 9.999 mS / cm from 10.00 to 99.99 mS / cm from 100.0 to 999.9 mS / cm from 1.000 to 9.999 mS / cm from 10.00 to 99.99 mS / cm from 100.0 to 1000.0 mS / cm
TDS    0.000 to 9.999 ppm, from 10.00 to 99.99 ppm, from 100.0 to 999.9 ppm, and from 1000 to 9999 ppt, from 10.00 to 99.99 ppt; 100.0 to 400.0 ppt
Scale resistivity    from 1.0 to 99.9 Ohm • cm, 100 to 999 Ohm • cm, from 1.00 to 9.99 kOhm • cm, 10.0 to 99.9 kOhm • cm, 100 to 999 kOhm • cm, from 1.00 to 9.99 MOhm • cm, from 10.0 to 100.0 MOhm • cm
Salinity Scale    Practical salinity: 0.00 to 42.00 psu; Seawater: 0.00 to 80.00 ppt; Percentage: 0.0 to 400.0%
Scale temperature    -20.0 to 120.0 ° C -4.0 to 248.0 ° F, from 253.15 to 393.15K
Resolution EC    0001 mS / cm; 00:01 mS / cm, 0.1 mS / cm; 0001 mS / cm, 0.01 mS / cm, 0.1 mS / cm
Resolution TDS    0.001 ppm, 0.01 ppm, 0.1 ppm; 0001 ppt, 0.01 ppt, 0.1 ppt
Resolution resistivity    0.1 Ohm • cm, 1 Ohm • cm; 0:01 kOhm • cm, 0.1 kOhm • cm, 1 kOhm • cm; 0:01 MOhm • cm, 0.1 MOhm • cm
Resolution Salinity    0:01 psu for practical salinity; 0.01 ppt to seawater, 0.1% for percent scale
Temperature resolution    0.1 ° C / 0.1 ° F / 0.1K
Accuracy EC (at 20 ° C)    ± 1% of reading (or ± 0.01 mS / cm whichever is greater)
Accuracy TDS (at 20 ° C)    ± 1% of reading (± 0.01 ppm)
Precision resistivity    ± 2% of reading (or ± 1 Ohm • cm whichever is greater)
Salinity Accuracy    ± 1% of reading
Accuracy at 20 ° C temperature    ± 0.2 ° C / ± 0.4 ° F / ± 0.2K
Factor EC / TDS    adjustable from 0.40 to 1.00
Temperature Coefficient    adjustable from 0.00 to 10.00% / ° C
EC calibration    automatic up to 4 points with 6 values ​​memorized standards (84 mS / cm, 1413 mS / cm, 5.0 mS / cm, 12.88 mS / cm, 80.0 mS / cm, 111.8 mS / cm) plus other values ​​set by the user
Salinity Calibration    percentage scale 1 point (with HI 7037 solution)
Temperature Calibration    3 points
Temperature Compensation    EC: linear and non-linear (natural water)
Conductivity probe    HI 76312 4-ring (included)
Storing a sample    100 lots with 10000 samples per lot
Automatic storage    100 lots with 10000 samples per lot
Interfaces    USB and RS232 opto-isolated
Supply    12 Vdc adapter 230Vac
Terms of use    from 0 to 50 ° C; RH max 95%
Dimensions and weight    160 x 231 x 94 mm / 1.2 kg
Language    Italian, English, Spanish, Portuguese