Details of the product
 

Four measurement principles for the widest range of application
PH 390

Fast and easy one- to five-point calibration with Auto-Find™ automatic buffer recognition for five buffers (pH 1.68, 4.00, 7.00, 10.01 and 12.45) and Auto-Read™ for locking onto stable readings. Standard buffers can be substituted with alternate buffers (pH 6.86, 7.41, 9.18 and 11.88) while maintaining automatic buffer recognition and temperature compensation. In addition, the system supports up to five custom buffers and concentration standards. Continuous display of calibration buffers. The temperature can be displayed in either ºC or ºF. The system provides audible support that can be turned on or off by the user. 100 data storage locations are available and the user is able to determine an individual storage location, if selected. GLP/GMP features such as date and time stamp for each calibration and measurement, link of each result to the appropriate calibration data and printout of calibration header for each group of samples are included. A visual and audible re-calibration alert after a user-specified time assures accurate results at all times. The LCD displays results, temperature, status messages and icons. A tactile keyboard makes it easy and convenient to operate the system. The meter can be operated either on battery or with the AC adapter supplied with the instrument. When operating on battery, the automatic power shut-off

 

Specifications	pH	mV	Concentration	Temperature with ATC Probe
Range	-2 to 19.99 pH	± 1600 mV	0-19900	-5 to 100ºC
Resolution	0.1, 0.01, 0.001 pH	0.1 mV	last significant digit	0.1ºC
Accuracy	± 0.004 pH	±0.2 mV	± 0.5%	± 0.5ºC