Metrohm 771 IC Compact Interface - Manual (Page 23)

4.1 Technical data
771 IC Compact Interface
17
4 Appendix
4.1 Technical data
Mains connection
Voltage 100...240 V
Frequency 50...60 Hz
Power consumption 6 W
Fuse 2 × 1 ATH (to be replaced by Metrohm Service
only using the same type)
Additional electronic overload protection
PC interface (RS232)
Connector Dsub connector 9 pin (male)
1 5
9 6
Baud rate 1'200 … 115'200
Data bits 8
Stop bits 1
Handshake SWChar, none
Parity none, even, odd
Pin assignment Pin 1,4,6: internally connected
Pin 2:
RxD (Received Data)
Pin 3: TxD (Transmitted Data)
Pin 5: GND (Signal Ground)
Pin 7,8: internally connected
Analog signal interface
Function 2 potential-free analog signal inputs per system.
Connector Dsub connector 9 pin (female)
1 5
6 9
Input voltage range ± 2.5 V
Input amplification 1, 2, 4, 8, 16, 32, 64 (selectable)
Sampling rate 10, 20, 30, 50, 60 measuring points/s
Resolution 24 Bit (1 LSP = 0.298 µ V at amplification 1)