What is the purpose of the "SET TRANSFER" function when configuring a controller relay or analog output?

Document ID

Document ID TE12765

Published Date

Published Date 01/05/2022
Question
What is the purpose of the "SET TRANSFER" function when configuring a controller relay or analog output?
Summary
SET TRANSFER function on SC controllers
Answer
The analog output and relays on Hach controllers (SC200, SC1000, SC4200, SC1500, and others) have the ability to be configured with a "set transfer" function that will allow the user to dictate how the relay or output will behave during an error condition.  The Set Transfer value for analog outputs can be any mA value between 0-24 mA, which allows the selection to be outside of the normal measuring range (0/4-20) which can logically be interpreted at the PLC/SCADA as an error.
 
To access the 'set transfer' function for a relay when using an SC200 please use MENU > SC200 SETUP > RELAY SETUP > RELAY A-D > SET TRANSFER > ACTIVE/INACTIVE.
To access the 'set transfer' function for an output when using an SC200 please use MENU > SC200 SETUP > OUTPUT SETUP > OUTPUT 1/2 > SET TRANSFER > enter a mA value.  If the user does not want the controller to transfer to a predetermined mA value for an analog output, they can go to MENU > SC200 SETUP > ERROR HOLD MODE > HOLD OUTPUTS/TRANSFER OUTPUTS.  If HOLD OUTPUTS is chosen, the controller will hold the last mA value read by the controller instead of using the SET TRANSFER value in the output menu.

See the following links for more information on controller outputs/relays

SC200 User Manual (Full and Basic)
How do you configure the analog outputs on sc200 controller?
What are the steps necessary to configure an SC200 Analog Output Module?
SC1000 User Manual
How do you configure the analog outputs on sc1000 controller?
Is there a SC4200c User Instruction?
How to configure mA output cards in MSM

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