簡介
Conductivity Meters
• Conductivity, resistivity, TDS and salinity modes
• Special pure water mode for ultra low conductivity measurements
• Storage of 500 results with built in data logger
• Infra-red data link (IrDA) for connection to printer and RS232 link to connect to printer or PC via DataWay software
網頁資料建構中
網頁資料建構中
The 4520 is a high specification laboratory conductivity /resistivity/TDS/salinity and temperature meter that offers additional accuracy with 1, 2 or 3 point conductivity calibration across the wide measurement range of 0 to 19.99S. The dedicated "pure water" mode ensures the optimum accuracy for this difficult application.
Parameter |
4520 |
Conductivity range |
6 auto–selected from 0 to 19.99S* |
Conductivity resolution |
0.01µS to 0.01S |
Conductivity accuracy |
±0.5% ±2 digits |
Automatic standard recognition |
10µS, 84µS, 1413µS, 12.88mS |
Cell constant |
0.010 to 19.999 |
TDS range |
6 auto selected ranges from 0 –1999g/l* |
TDS resolution |
0.01mg/l to 1g/l |
TDS accuracy |
±0.5% ±2 digits |
EC Ratio |
0.50 to 0.80 |
Resistivity range |
0–20Mohm |
Resistivity resolution |
0.01Mohm |
Resistivity accuracy |
±0.5% ±2 digits |
Salinity range |
0–99.9g/l |
Salinity resolution |
0.1g/l |
Salinity accuracy |
0–35 ±1g/l, 35–99.9 ±3g/l |
Temperature range |
–10 to 105°C |
Temperature resolution |
0.1°C |
Temperature accuracy |
±0.5°C |
ATC and manual |
0 to 100°C |
Temperature coefficient |
0.00% to 4.00%/°C |
Reference temperature |
18, 20 or 25°C |
GLP |
Calibration reminder interval, alarm outputs and security code protected data |
Outputs |
Analogue, RS232 and IrDA interface |
Connector |
7–pin DIN |
Power |
9V AC ±10% @ 50/60Hz |
Size (l x w x d) |
210 x 250 x 55mm |
Weight |
850g |