Thermo Scientific AquaPro Analyzer User Guide
26
2.6.11
DO Scaling Card Connections for RDO Pro Probe Only
(Table populated from RDO label dwg)
* Note:
The Comms (+) and Comms (-) are different
than the DataStick connection
2.7
Relay Wiring
2.7.1
Relay Card
Remove the terminal block from the desired relay and wire to the common contact (COM) and to either the
normally open contact or the normally closed contact.
Plug the terminal block into the card.
Pin
Number
Label
Description DataStick
8 +24
VDC Red
7 Ground Black
6 Comms
(+)
Blue
5 Comms
(-) Green
4 Shield Shield
3
mA Out 1
2 Output
Common
1
mA Out 2
Relay D
Relay E
Relay F
Relays D, E and F
NO = Normally Open Contact
COM = Common Contact
NC = Normally Closed Contact