5 interfaces, 6 msb connections, 7 swing head connection – Metrohm 838 Advanced Sample Processor Installation Instructions User Manual

Page 77: 8 lift, 9 turntable, 10 stirrer connection (din socket), 11 mains connection

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6.2 Technical data

Metrohm 838 Advanced Sample Processor, Annex

71

6.2.5 Interfaces

RS232 connector
Remote socket

For connection of a computer, 9-pin
Universal parallel interface, programmable for communica-

tion with external instruments, 22 signal lines (8 x Input, 14

x Output), TTL level

Output 6

Output 7

Output 4
Output 2

Output 0
Output 8

Output 9
Output 10

Input 1

Input 3

Input 5
Input 7
Output 11

0 Volt

+5 Volt

Output 5

Output 3

Output 1

Output 12

Output 13

Input 0

Input 2

Input 4

Input 6

0 Volt

14

1

13

25

Figure 44 Remote interface

Input:

t

p

t

p

>20 ms

approx. 50 kΩ

Pull-up

Output:

t

p

t

p

>200 ms

V

CEO

= 40 V

I

C

= 20 mA

Open Collector

+5 V: maximum load = 20 mA

6.2.6 MSB

connections

3 connection sockets

9-pin Mini-DIN sockets

- for 800/700 Dosino or 805 / 685 Dosimat

- for 801 Stirrer or 804 Titration Stand

6.2.7 Swing Head connection

Connection socket

9-pin Mini-DIN socket

- for 786 Swing Head

6.2.8 Lift

Max. lift travel

Max. load

Lift rate

235 mm

approx. 30 N

adjustable, 5...25 mm/s

6.2.9 Turntable

Shifting rate

adjustable, 3...20 angular degrees/s

6.2.10 Stirrer connection (DIN socket)

Stirring speed

adjustable in 15 steps
741 magnetic stirrer 180/min...2600/min

802 / 722 rod stirrer 180/min...3000/min

6.2.11 Mains connection

Voltage

Frequency

Power consumption

Fuse

100… 240 V (±10%)

50...60 Hz

115 W

2.0 A slow-blow

active = low

inactive = high

active = low

inactive = high

+5V

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