Land Solonet - Page 41

User Guide User Guide
Page 29PP307 Page 29PP307
Fig. 22 - 'CMD' (Command) Input Control via a Remote Switch
Fig. 23 - 'CMD' (Command) Input Control via Potential-free Contacts
Vin
Potential-free
contacts
Note: Input connections must be isolated from all other
connections to the thermometer, including earth/chassis
<+1.5V = Short circuit
>+3.0V = Open circuit
Potential-free contacts can be replicated by voltage Vin. Where:
Open circuit
Peak Picker
Track & Hold
Short circuit
Peak Pick
Reset
Track
Hold
CMD
Pin 9
Pin 8
+
-
Customer
Connections
307023
Remote switch
Vin
Remote switch can be replicated by voltage Vin. Where:
>+3.0V = Switch open
<+1.5V = Switch closed
Switch open
Peak Picker
Track & Hold
Switch closed
Peak Pick
Reset
Track
Hold
CMD
Pin 9
Pin 8
+
-
Customer
Connections
Note: Input connections must be isolated from all other
connections to the thermometer, including earth/chassis
307022
Fig. 22 - 'CMD' (Command) Input Control via a Remote Switch
Fig. 23 - 'CMD' (Command) Input Control via Potential-free Contacts
Vin
Potential-free
contacts
Note: Input connections must be isolated from all other
connections to the thermometer, including earth/chassis
<+1.5V = Short circuit
>+3.0V = Open circuit
Potential-free contacts can be replicated by voltage Vin. Where:
Open circuit
Peak Picker
Track & Hold
Short circuit
Peak Pick
Reset
Track
Hold
CMD
Pin 9
Pin 8
+
-
Customer
Connections
307023
Remote switch
Vin
Remote switch can be replicated by voltage Vin. Where:
>+3.0V = Switch open
<+1.5V = Switch closed
Switch open
Peak Picker
Track & Hold
Switch closed
Peak Pick
Reset
Track
Hold
CMD
Pin 9
Pin 8
+
-
Customer
Connections
Note: Input connections must be isolated from all other
connections to the thermometer, including earth/chassis
307022