Meriam M202 Precision Absolute Manometer - Manual (Page 8)

M2 Series Instruction Manual 9R68-A
Mar, 2008
www.meriam.com
page 8 of 36
Keystroke Display
1. Apply a known,
accurate pressure
source. This may be
true atmospheric
pressure, with known
reference defined by a
local barometer.
2. Press MIN/MAX and
TARE keys at the
same time. (See
figure 1 above.) Top line of display reads
“ZEROING SOURCE:”
Bottom line of display
reads “REF TO ABS
ZERO”
3. Press or arrow
key until desired zero
function is shown on
the bottom line.
Bottom line of display
reads “USER ADJ.
ZERO”
4. Press the PRGM key. Top line of display shows
the current non-zero
compensated pressure
value. Bottom line of
display shows the same
value, along with the
engineering unit.
5. Press any of or
arrow key or the
PRGM key to begin
editing.
Top line of display
continuously updates.
Bottom line of display data
is frozen, and the first digit
is blinking.
Example: set current
pressure value to 29.5
In Hg @ 0º C.