Instruction Manual

Lab 870 Technical data
59
ba75555e04 11/2009
Stand October 30, 2009Translation of the legally binding German version
7.2 Measuring ranges, resolution, accuracy
Note
The accuracy values specified here apply exclusively to the meter. The
accuracy of the electrodes and buffer solutions has to be taken into
account additionally.
Measuring ranges,
resolution
Variable Measuring range Resolution
pH - 2.000 ... + 19.999
- 2.00 ... + 19.99
0.001
0.01
U [mV] - 999.9 ... + 999.9
- 2000 ... + 2000
0.1
1
T [°C] - 5.0 ... + 120.0 0.1
T [°F] + 23.0 ... + 248.0 0.1
Manual
temperature input
Variable Range Increment
T
manual
[°C] - 25 ... + 125 1
T
manual
[°F] - 13 ... + 257 1
Accuracy (± 1 digit) Variable Accuracy Temperature of the test
sample
pH / range *
- 2.000 ... + 19.999 ± 0.005 + 15 °C ... + 35 °C
- 2.00 ... + 19.99 ± 0.01 + 15 °C ... + 35 °C
U [mV] / range
- 999.9 ... + 999.9 ± 0.3 + 15 °C ... + 35 °C
- 2000 ... + 2000 ± 1 + 15 °C ... + 35 °C
T [°C] / temperature sensor
NTC 30 ± 0.1
PT 1000 ± 0.3
* when measuring in a range of ± 2 pH around a calibration point