5 peristaltic pump, 6 suppressor module, 7 leak detector – Metrohm 761 SD Compact IC User Manual

Page 117: 8 rs232 interface, Peristaltic pump, Suppressor module, Leak detector, Rs232 interface

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7.1 Technical data

761 SD Compact IC / Instructions for Use 8.

761.1043

109

Pump displacement

volumes

Main piston:

28.5

µ

L

Priming piston:

14.25

µ

L

Length of stroke

Main piston:

3.6 mm

Priming piston:

1.8 mm

7.1.5 Peristaltic

pump

Type

2-channel peristaltic pump

Pump capacity

Rotational speed

20 U/min at 50 Hz

24 U/min at 60 Hz

Flow range

0.4

0.5 mL/min with 6.1826.110 / 6.1826.040

Pump tubing

Maximum error

±

5 %

Maximum pressure

0.4 MPa (4 bar)

Pumpable liquids

Clear liquids with no solid contents

Pump tubing material

PP (polypropylene)

7.1.6 Suppressor

module

Switching duration

140 ms

Pressure resistance

2.5 MPa (25 bar)

7.1.7 Leak

detector

Type

Detector with 2 electrodes approx. 1 mm above

base of interior

Response level

Resistance < 1 M

(for deion. water)

7.1.8 RS232

interface

Connector

Dsub 9 pin (male)

Function

TxD and RxD signal for connection with software

handshake

Default settings

9600 baud, 8 bit, 1 stop bit, no parity, XON/XOFF

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