Technical data pH 330i/340i
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pH temperature input:
Analog output
(only pH 340i)
Automatic switchover when the recorder is connected by the cable,
AK 323.
Serial interface (only pH
340i)
Automatic switchover when a PC or a printer is connected via the cable,
AK 340/B or AK 325/S.
Manually [°C] - 20 ... + 130
Output signals Corresponds to the electrode voltage,
i.e. 50-62 mV/pH unit
Accuracy ± 0.1% of the measured value ± 4 mV
Internal resistance < 5 Ohm (current limited to max. 0.2 mA
output current)
Concentration Voltage Resolution
0 ... 19.99 mg/l 0 ... 1999 mV 0.01 mg/l per 1 mV
0 ... 90.0 mg/l 0 ... 900 mV 0.1 mg/l per 1 mV
Saturation Voltage Resolution
0 ... 199.9 0 ... 1999 mV 0.1 % per 1 mV
0 ... 600 % 0 ... 600 mV 1 % per 1 mV
D. O. partial pressure Voltage Resolution
0 ... 199.9 mbar 0 ... 1999 mV 0.1 mbar per 1 mV
0 ... 1250 mbar 0 ... 1250 mV 1 mbar per 1 mV
Type RS 232, data output
Baud rate Selectable 1200, 2400, 4800, 9600 baud
Data bits 8
Stop bit 2
Parity None
Handshake RTS/CTS + Xon/Xoff
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