On Feb 25, 2014, at 11:21 AM, Andrew Rodney <andrew@digitaldog.net> wrote:
http://www.xrite.com/product_overview.aspx?ID=1912&Action=support&SupportID=...
Inter-instrument agreement: 0.4 ∆E94* average, 1.0 ∆E94* max. (deviation from X-Rite manufacturing standard at a temperature of 23ºC (73.4ºF) on 12 BCRA tiles (D50, 2º)) Short-term repeatability: 0.1 ∆E94* on white (D50,2°, mean of 10 measurements every 3 seconds on white)
Might be time for both sites to run the free i1Pro diagnostics.
Indeed, also remove the filter attachment and clean it out. I've seen them fogged white with paper dust. X-Rite's (likely correct) response will be to ask when each of the instruments was last re-certified and recommend that they be sent back once a year…. regards, Steve