Meriam M202 Precision Absolute Manometer - Manual (Page 17)

M2 Series Instruction Manual 9R68-A
Mar, 2008
www.meriam.com
page 17 of 36
Damp Rate Select
Adjustable exponential type damping is available to steady the
display when measuring pulsating pressures. The M202 has a range
of damping rates; 0.1, 0.2, 0.5, 1, 2, 5, 10, or 25 seconds. Damping
is done by averaging new data from the pressure sensor against
previously collected data. The microprocessor collects data from
the sensor every 0.1 seconds. The display updates every 0.5
seconds, showing the current 0.1 second pressure reading. When set
at 25 seconds, the display updates every 0.5 seconds with the
average of the previous 25 seconds readings. Therefore, it takes up
to 25 seconds from the time pressure is applied until the manometer
displays the full scale applied pressure. Min/Max display updates
every 0.1 seconds.
To set the damp rate:
Keystroke Display
1. Enter Program Mode by
pressing the PRGM key. Top line reads “PROGRAM
MODE”. Bottom line reads
“UNITS SELECT”.
2. Press the key. Bottom line reads “DAMP
RATE SELECT”.
3. Press the PRGM key. Top line reads “DAMP RATE
SELECT”. Bottom line shows
current value.
4. Press the or keys
until the desire damp rate is
displayed on the bottom line.
Bottom line shows damp rate
settings in seconds.
5. Press the PRGM key. Top line reads “PROGRAM
MODE”. Bottom line reads
“UNITS SELECT”.
6. Press the key. Bottom line reads “EXIT”.
7. Press the PRGM key. Returns to Measure Mode.