Knick Stratos Pro A401B PH, User Manual

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Specifications
pH/mV input Input for pH or ORP sensors or ISFET
Input
Glass electrode or ISFET
Input Reference electrode
Input ORP electrode (e.g. platinum) or auxiliary
electrode for impedance measurement
Measuring range –1500 ... +1500 mV
Display range pH value –2.00 ... 16.00
ORP –1999 ... +1999 mV
Glass electrode input 5) Input resistance > 1 x 10 12 Ω
Input current < 1 x 10 -12 A
Impedance range 0.5 ... 1000 MΩ (± 20%)
Reference electrode input 5) Input resistance > 1 x 10 10 Ω
Input current < 1 x 10 -10 A
Impedance range
2)
0.5 ... 200 kΩ (± 20%)
Measurement error 1,2,3) pH value < 0.02 TC: 0.002 pH/K
mV value < 1 mV TC: 0.1 mV/K
pH sensor standardization *
pH calibration
Operating modes BUF Calibration with Calimatic
automatic buffer recognition
MAN Manual calibration with
entry of individual buffer values
DAT Data entry of pre-measured electrodes
Product calibration
Calimatic buffer sets
*
-01- Mettler-Toledo 2.00/4.01/7.00/9.21
-02- Knick CaliMat 2.00/4.00/7.00/9.00/12.00
-03- Ciba (94) 2.06/4.00/7.00/10.00
-04- NIST technical 1.68/4.00/7.00/10.01/12.46
-05- NIST standard 1.679/4.006/6.865/9.180
-06- HACH 4.01/7.00/10.01
-07- WTW techn. buffers 2.00/4.01/7.00/10.00
-08- Hamilton
4.01/7.00/10.01/12.00
-09- Reagecon 2.00/4.00/7.00/9.00/12.00
-10- DIN 19267 1.09/4.65/6.79/9.23/12.75
-U1- Specifiable buffer set with 2 buffer solutions