Metrohm 830 IC Interface - Manual (Page 42)

4 Appendix
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 pooints/s
Resolution 24 bit (1 LSP = 0.298 µ V at amplification 1)
Noise < 20 µ Vpp
< 3 µ Vrms (at 0 V input voltage, amplification 1
and sampling rate 10 Hz)
Zero error ± 2.5 mV
Pin assignment
Pin 1,4,5,8,9: GND (ground, connected to
housing)
Pin 2: Analog 1+
Pin 3: Analog 1–
Pin 6: Analog 2+
Pin 7: Analog 2–
Safety specifications
Construction/testing according to EN/IEC 61010-1 / UL 3101-1,
protection class 1, degree of protection IP40
Safety directions The Instructions for Use include information and
warnings which must be heeded by the user to
assure safe operation of the instrument.
Electromagnetic compatibility (EMC)
Emitted interference Standards met:
- EN/IEC 61326
- EN 55022
- CISPR 22
Immunity to interference Standards met:
- EN/IEC 61326
- EN/IEC 61000-4-2
- EN/IEC 61000-4-3
- EN/IEC 61000-4-4
- EN/IEC 61000-4-5
- EN/IEC 61000-4-6
- EN/IEC 61000-4-8
- EN/IEC 61000-4-11
- EN/IEC 61000-4-14
- NAMUR
830 IC Interface / 8.830.1003 Instructions for Use
36