Meriam M202 Precision Absolute Manometer - Manual (Page 29)

M2 Series Instruction Manual 9R68-A
Mar, 2008
www.meriam.com
page 29 of 36
RE-CALIBRATION – 5 Point START
To begin the 5-point re-calibration procedure, turn the unit OFF
and follow the steps below.
Keystroke Display
1. Press and hold the
MIN/MAX key and turn the
unit on by pressing the
ON/OFF key. Top line reads “RE-CAL”.
Bottom line reads “EDIT”.
2. Press the up arrow key
until “START” is displayed
on the bottom line. Top line reads “RE-CAL”.
Bottom line reads “START”.
3. Press the PRGM key. Top line reads “RE-CAL
Bottom line reads “1-POINT”.
4. Press the up arrow key
until “5-POINT” is
displayed on the bottom
line. Top line reads “RE-CAL
START”.
Bottom line reads “5-POINT”.
5. Press the PRGM key. Top line reads “POINT 1 –
ZERO:”
Bottom line displays live
applied pressure.
6. Vent P1 and P2 ports to
atmosphere and
simultaneously press the
MIN/MAX and HOLD
keys, then release. Unit takes new zero. Top line
reads “ POINT 1 - ZERO:”
Bottom line displays live
applied pressure. POINT 1 has
been taken.
7. Press the right arrow key
while on the right most
digit to proceed. Top line reads “POINT 2 -
APPLY:”.
Bottom line displays the cal
point value to apply.
8. Apply the indicated
calibration point pressure
using external pressure
standards. After pressure is
stable, press the right arrow
key. Top line reads “POINT 3 -
APPLY:”.
Bottom line displays the cal
point value to apply.
9. Repeat step 8 for CAL
POINTS 4 and 5. Top line reads “POINT 4/5 -
APPLY”
Bottom line displays the cal
point value.