Metrohm 760 Sample Changer - Manual (Page 16)

2.4 Remote Connections
760 Sample Changer, Installation 13
760 Sample Changer — Titrino — Dosimat 765/776
Remote control commands:
Output 0: *************1 starts Titrino
Output 6: *******1****** starts Dosimat
Input 3: ****1*** awaits end of titration (EOD pulse)
Pump Control via Remote Lines
Using methods 3 and 4, external pumps can be controlled via the
remote interface. To start a pump, an inverted pulse of duration of
at least 200 ms is sent to pin 7 (Output 9) of the remote socket.
To continue with the method the pump must indicate its readiness
by setting the input line 1 (pin 9) to low level for at least 20 ms.
Ask your pump distributor or Metrohm for customized connecting
cables.
Pin 9 Input
t
p
t
p
>20 ms
Pin 7 Output
t
p
t
p
>200 ms
V
CEO
= 40 V
I
C
= 20 mA
Cable 6.2141.040
+5V
active = low
inactive = high
active = low
inactive = high
B A Titrino
C
D
B
A
765
C
D