Push Key Bench Top pH Meter OLB-P901, 0.00 To 14.00 pH Range (CAT#: STEM-AL2-2350-ZJF)

The push key bench top pH meter measures pH, redox potential and temperature of aqueous samples. It is arranged for high purity water, the application where ordinary pH work becomes difficult because of low ionic strength. Separate modes are provided for high purity water and for ammoniated pure water, as used in power and petrochemical plants. The large screen shows the measured value with temperature and other parameters together, so no pages have to be switched. Automatic recognition of standard buffer series removes the need to key in buffer values during calibration. Recorded results can be held in the meter and later moved to a computer through the interfaces provided. Wireless printing is supported, and data can be sent onward to external devices where that option is fitted. The housing carries an ingress rating against dust and splashing, which suits plant and bench use alike. Electrode condition is judged by the meter itself, which helps the user notice a failing electrode before results are affected.

Display: 6.5 inch LED screen
Displayed parameters: pH, mV and temperature
pH measuring range: 0.00 to 14.00 pH
pH resolution: 0.01 pH
pH relative accuracy: plus or minus 0.02 pH
Input current: 2 x 10 to the power of minus 12 A or less
Input impedance: 1 x 10 to the power of 12 ohm or more
mV measuring range: -1200.00 to 1999.00 mV
mV resolution: 1 mV
mV relative accuracy: plus or minus 0.1 percent of full scale
Temperature measuring range: 0 to 60 deg C
Automatic temperature compensation from 0.0 to 60.0 deg C
Calibration: manual two point calibration
Recognition of European, United States and NIST buffer series
Data storage: 2000 sets
Communication interfaces: USB 2.0, wireless bluetooth and RS232
Conformity with GLP requirements
Working conditions: 5 to 40 deg C at 5 to 85 percent relative humidity
Power: 9 V 2 A adapter for 110 to 220 V, 50 to 60 Hz
Dimensions and weight: 160 x 190 x 70 mm, 880 g
Enclosure rated to IP54 against dust and splashing
Long life key pad rated above 100000 operations

Large six and a half inch LED screen showing all parameters at once
Dedicated modes for high purity water and for ammoniated pure water
Automatic recognition of three standard buffer series
Storage of two thousand measurement sets transferable by memory stick
Wireless bluetooth printing and optional transfer to external devices
Electrode status judgement supporting correct electrode use
Dust and splash resistant housing rated to IP54
Long operating life of the key pad