PLX M250: Bench testing ????

I have a used PLX M250 and want to bech test it to make sure its working properly, before I install it. The wide band output is about 3.5 VDC at power up and settles out at 5.01 VDC as the WB sensor heats up. According to the manual this is normal.
What I could not find in the manual, is what I should see on the simulated narrow band 0-1VDC output.
Can anyone tell me what I should see if everything is working properly?
NB output @ power up = ?? VDC
NB output @ powerup + 1 minute = ?? VDC
NB output with sensor fully heated = ?? VDC
Thanks.