Energizer MMT-511 - Manual (Page 128)

116 Chapter 9
6. Perform a selftest.
My screen appears distorted
The screen may appear distorted or have a “rainbow” appearance if
you are wearing polarized sunglasses, are in bright sunlight, or in
extreme high or low temperatures. If your screen appears distorted:
■ take off your sunglasses
■ move into the shade
■ make sure your pump is not in direct heat (example: next to a
heater) or cold (worn on the outside of your clothing on a very
cold day) temperatures.
Do not return the pump; this is a normal property of this type of
screen on any device.