User Manual

Technical data pH 1970i
30
ba75675e01 01/2007
Measuring ranges, resolutions, accuracies
* when measuring in a range of ± 2 pH around a calibration point
Analog output
(AK 323/S cable)
Automatic switchover when the recorder is connected by the cable,
AK 323/S.
pH output signal -200 ... +1999 mV for the range
- 2.00 ... + 19.99
mV output signal -1999 ... +1999 mV for the range
-1999 ... +1999 mV for the range
Accuracy ± 0.5 % of display value
Internal resistance < 5 Ohm (current limited to max. 0.2 mA
output current)
Guidelines
and norms used
EMC EC guideline 89/336/EEC
EN 61326-1:1998
EN 61000-3-2 A14:2000
EN 61000-3-3:1995
FCC Class A
Instrument safety EC guideline 73/23/EEC
EN 61010-1 A2:1995
Climatic class VDI/VDE 3540
IP protection EN 60529:1991
Variable Measuring
range
Resolution Accuracy (± 1 Digit)
pH - 2.00 ... + 19.99 0.01 ± 0.01 *
U [mV] - 199.9 ... + 199.9
- 1999 ... + 1999
0.1
1
± 0.5
± 1
T [°C] - 5.0 ... + 105.0 0.1 ± 0.1
Manual
temperature
input
Variable Range Increment
T
manual
[°C] - 20 ... + 130 1