Meriam M1 – Series Pressure Calibrator - Manual (Page 4)

M1 Series – PC Instruction Manual 9R000035-IR
E.O. 6409 JAN 2008
www.meriam.com
Page 4 of 18
User Interface
Single Keypad Functions
ON/OFF (O) Key
The ON/OFF key, represented by the standard ON/OFF symbol, turns the M1
ON or OFF (note: the ON/OFF key must be held until the display turns on or
off). Upon power on, the M1 will perform a self test, display all segments for
approximately 1-2 seconds, then go into the normal pressure measure mode
using the last pressure units selected.
To view the calibrated accuracy and firmware revision, press and hold the
ON/OFF key for approximately 2 seconds upon power on. The display will
alternate between the calibrated accuracy and firmware revision for as long as
the ON/OFF key is held.
BACKLIGHT (B) Key
The BACKLIGHT key, represented by the standard light-bulb symbol, turns
the green display backlight on and off. The backlight will remain on for
approximately 20 seconds if not manually turned off. To temporarily override
the auto shut off feature, press and hold the BACKLIGHT key for
approximately 2 seconds (until the backlight turns on-off-on).
FUNC (F) Key
This key selects the functional mode of the M1. There are 5 functional
modes: NORMAL (pressure measure), HOLD, MIN/MAX, AVE and TEMP.
Pressing FUNC repeatedly will cycle through these modes in the order listed.
Since HOLD is first in the sequence, measurements can be readily captured as
needed.
UNIT (U) Key
This key selects the engineering unit of measure desired when the M1 is in
NORMAL and HOLD modes. The UNIT key selects MIN or MAX in
MIN/MAX mode, resets/restarts in AVE mode, and selects °C or °F in TEMP
mode.