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Electrochemical Instruments
Jenway Model 4520 Laboratory Conductivity/TDS Meter
MAIN FEATURES and BENEFITS
Ideal for quality control and GLP applications
Automatic range selection
Conductivity / TDS display
Calibration on standard solutions or direct cell constant entry
Automatic temperature compensation
512 reading memory
Back-lit custom liquid crystal display
RS232 serial interface and analogue output
Wall mounting option
The Model 4520 is a fully specified conductivity / Resistivity / TDS / Salinity / Temperature meter that includes full support for good laboratory practices (GLP). The meter supports one, two or three point conductivity calibration.
Powerful data logging capabilities are included with the ability to store up to 512 readings either manually, at timed intervals or alarmed events. Remote monitoring and data collection is facilitated by the provision of both analogue and digital outputs and in the event of power removal all user defined parameters are retained.
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Conductivity Ranges |
0 to 19.99µS / 0 to 199.9µS / 0 to 1999µS 0 to 19.99mS / 0 to 199.9mS / 0 to 1999mS 0 to 19.99S* |
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Conductivity Resolution |
0.01µS / 0.1µS / 1µS 0.01mS / 0.1mS / 1mS 0.01S* |
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Conductivity Accuracy |
± 0.5% ±2 digits |
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TDS Ranges |
0 to 19.99mg/l / 0 to 199.9mg/l / 0 to 1999mg/l 0 to 19.99g/l / 0 to 199.9g/l / 0 to 1999g/l |
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TDS Resolution |
0.01mg/l / 0.1mg/l / 1mg/l 0.01g/l / 0.1g/l / 1g/l * * only with cell constant > 5 |
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TDS Accuracy |
± 0.5% ±2 digits |
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Resistivity Range |
0 to 20 Mohms |
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Resistivity Resolution |
0.1 Mohms |
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Temperature Ranges |
-10 to +105°C / 14 to 221°F |
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Temperature Resolution |
0.1°C / 1°F |
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Temperature Accuracy |
± 0.5°C / ± 1°F |
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Automatic Temperature Compensation Range |
0 to 100°C / 32 to 212°F |
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Manual Temperature Compensation Range |
0 to 100°C / 32 to 212°F |
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Cell Constant |
0.010 to 19.999, default 1.000 |
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Temperature Coefficient |
0.00% to 4.00%, default 1.91% |
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Reference Temperature |
18, 20 and 25°C, default 25°C |
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EC Ratio (conductivity to TDS factor) |
0.50 to 0.80, default 0.6 |
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Automatic Standard Recognition |
10µS, 84µS, 1413µS and 12.88mS |
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Outputs |
Analogue (1mV per digit), RS232 and Alarm |
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Clock |
24 hours, hrs/min/sec or day of month/month/year, leap year corrected (European and American formats) |
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GLP |
Calibration reminder interval (1 to 999 hours) Alarm outputs (open collector and audible) Security code protected user data |
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Display |
Back-lit 1/8 VGA monochrome liquid crystal display |
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Language Options |
English, French, German, Italian, Spanish, Portuguese |
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Power |
9V power supply |
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Size |
250(l) x 210(w) x 55(d) mm |
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Weight |
850g |
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452 001 |
Model 4520 Conductivity / TDS Meter supplied complete with K=1 glass bodied conductivity / ATC probe (027 013), electrode holder, power supply (UK), condensed operating instructions and instruction manual |
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452 101 |
Model 4520 Conductivity / TDS Meter supplied complete with K=1 glass bodied conductivity / ATC probe (027 013), electrode holder, power supply (US), condensed operating instructions and instruction manual |
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452 201 |
Model 4520 Conductivity / TDS Meter supplied complete with K=1 glass bodied conductivity / ATC probe (027 013), electrode holder, power supply (European), condensed operating instructions and instruction manual |
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452 301 |
Model 4520 Conductivity / TDS Meter supplied complete with K=1 glass bodied conductivity / ATC probe (027 013), electrode holder, power supply (230V leaded), condensed operating instructions and instruction manual |
