I received an RHS-10ATC today that I bought on eBay. I really like it but was curious about the requirement of calibration in a room with an ambient temp of 68 degrees. That's going to be kinda hard to hit.
Do they mean that it -literally- has to be calibrated in a 68 degree room with distilled water or that I need to make sure my sample and my ambient room temp are the same (and 68 was their example)?
Also, does RO
water do the trick? I have some bottled RO
/carbon/microfilter water from Wal-Mart that I've been using for the tank. Blandest stuff you've ever tasted in your life.
One last question... on this model, do you tend to see a -slightly- pinkish tone that forms a line across the very top of the white area in your reading? I suspect it's related to the prism, but I wanted to be sure and whether I should set that pink line to 0 in calibration or below it where the white begins?