Cole-Parmer Jenway Model 3540 is an extensively specified conductivity, total dissolved solids (TDS), resistivity, salinity, pH and temperature meter with GLP support, 1, 2 or 3 point calibration and datalogging.
Features:
- Backlit LCD graphics readout with five, separately tabbed menu screens accessible to display pH and conductivity parameters, instrument set-up and logged results (pH and conductivity simultaneously displayed). The conductivity display can alternatively output Resistivity, Salinity or TDS values
- Ultra-pure water function enables the ideal temperature compensation algorithm for low range measurement to be selected
- Datalogging storage of up to 250 pH and conductivity readings (manual or time-triggered), with display call-up or output via RS232
General specifications:
| Model | 3540 | |
| Ranges (resolution) - autoranging | conductivity pH mV temperature salinity | 0.01µS/cm to 1.999S/cm* (0.001µS/cm to 1mS/cm*) -2 to 20.000 (0.001/0.01/0.1) -1999.9 to 1999.9g (0.1) -10.0 to 105.0°C (0.1°C) or 14 to 221°F (1°F) 0 to 99.9ppm (0.1ppm) |
| Input impedance | ohms | >1012 |
| Calibration | 1, 2 or 3 point using NIST, DIN, JIS or custom values | |
| Temperature compensation | manual or automatic | 0 to 100°C (32 to 212°F) |
| Outputs | Analogue recorder, bi-directional RS232,high and low alarm outputs | |
| Datalogging readings | 250 (pH and conductivity), via manual, timed, stability or alarm level trigger | |
| GLP functions | Time and date clock, calibration reminder (1 to 999 hours), operator or sample identity, security coded set-up of user options | |
| Overall L x W x H | mm | 210 x 250 x 55 |
| Weight | g | 850 |
* Up to 19.99S maximum range available using accessory K=10 probe CU654-13.
Supplied with glass bodied combination pH electrode, separate ATC probe, glass conductivity cell (K=1) with built-in ATC, electrode stand and swing-arm holder, BNC shorting plug, pH4, pH7 and pH10 buffer sachets, instructions and 9V a.c. mains adapter requiring a 230V 50Hz supply.