Hi Mike.
I can't honestly say for sure as I've not had any experience of the CT160. I can't see any harm in substituting the meter for a suitable value resistor for test purposes. Perhaps another more experienced member might be able to provide better advice.
I assume that you have the manual including the circuit diagram but if not it can be found here
https://www.kevinchant.com/avo.html
Regards
Symon.