wtw Multi 197i - Measuring ranges, resolutions, accuracies

Technical data Multi 197i
74
ba75339e04 07/2009
7.2 Measuring ranges, resolutions, accuracies
7.2.1 pH/ORP
Serial
interface
Connection of the cable AK 340/B or AK 325/S
Baud rate adjustable: 1200, 2400, 4800, 9600 Baud
Type RS232, data output
Data bits 8
Stop bits 2
Parity None
Handshake RTS/CTS + Xon/Xoff
Cable length Max. 15m
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 E.C. 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] - 1999 ... + 1999 1 ± 1
T [°C] - 5.0 ... + 105.0 0.1 ± 0.1
* when measuring in a range of ± 2 pH around a calibration point
Manual
temperature input
Variable Range Increment
T
manual
[°C] - 20 ... + 130 1