Meriam M1 – Series Pressure Calibrator - Manual (Page 7)

M1 Series – PC Instruction Manual 9R000035-IR
E.O. 6409 JAN 2008
www.meriam.com
Page 7 of 18
Liquid Crystal Display (LCD)
The LCD displays the:
• current Functional Mode via icons,
• Pressure or Temperature measurement via large digits,
• Pressure measurement via bar graph, and
• Pressure or Temperature engineering units via icons.
A low battery warning (the BAT icon) is displayed when the batteries require
replacement. Approximately 2 hours of run time is available immediately
following a low battery warning.
The bar graph at the bottom of the display always shows a reading of the
currently applied pressure as a percent of the full scale of the M1.
The LCD incorporates two backlights:
• a green backlight which is user activated via the BACKLIGHT key, and
• a red backlight which is automatically activated during an error/over-
range condition
During an error or over-range condition, the red backlight will “over-ride” the
green backlight. However, once the error or over- range condition is corrected,
the green backlight will be restored to its previous state (if the backlight auto-
off timer did not expire).
The backlight should be turned off when not needed to conserve battery power.
The backlight feature will be reduced when the M1 is in low battery mode.