X-Rite revised the standard power supply for the model 890 and 891 densitometers. This new universal power supply (Part number SE 30-277) is a "switching" power supply. What this means is merely by changing the line cord connected to the power supply, the instrument is able to work under the different voltages (100-240 VAC) commonly found around the world. To denote this change the instrument is now referred to as an 890U, 891U, etc. these are also available as export models 890UX and 891UX this will support a localized line cord.
This update also changed the connector for the power supply and the instrument. The original power supply had an audio jack style of connector(straight pin). The newer supply has a more shielded connector(hollow pin) found on more recent X-Rite instruments. Be aware that when a customer requests a power supply for an 890 or 891 the correct adapter is serial number dependent. The chart below references the serial number, and when this change occurred on various models of the 890 and 891 series.
If the number falls below this it was originally shipped with a SE 30-61 (115 VAC) power supply for domestic use or a SE 30-62 (230 VAC) for export. These Power supplies are no longer available and you would use the Universal power supply (SE30-277) with an adapter (SE108-95-01). Remember as well that this power supply does not ship with a line cord, which must be ordered separately by country (line cords #'s, SD33-07 120vac, SD33-08 220vac EU)
**Older 880 series instruments would also use this updated power supply with the adapter.
Model Number | Serial Number |
890U | 2350 |
890UX | 2660 |
891U | 4342 |
891UX | 4264 |
891U+EK | 4254 |
891UX+EK | 3713 |
891U+N | 4238 |