CAMM
Air Monitor Corporation
116-044-91.P65 (8/31/10)
CAMM - IO&M Manual
SECTION 6 – CALIBRATION
49
6.3 – TRANSMITTER INPUT CALIBRATION
6.3.1
Transducer Calibration
Minimum and maximum full scale differential pressure will be applied to the CAMM, unit will be programmed to
recognize these pressures as zero and span for transmitter input calibration.
1. While in Main Menu, scroll to:
Transmitter Input
Calibration
2. Press
ENT
, and display will indicate:
Transducer Zero
Calib: 0.00 in.WC
3. Press
ENT
, and display will indicate:
Transducer Zero
-- Push ENTER --
4. Press
ENT
, and display will indicate:
Transducer Zero
Settle Time:4 Sec
Display will count down to 0, after which it will indicate:
Input Zero Done
-- Push ESCAPE --
Display will count down to 0, after which it will indicate: Input Span Done
-- Push ESCAPE --
Note:
If pressure input is less than 40% or greater than 110% of transducer's natural span value (see
Factory Set-Up Information Sheet), display will indicate:
Bad Input Span
-- Push ESCAPE --
If this occurs, check input pressure (as read on manometer), and readjust as necessary. Press
ESC
and
repeat Steps 6 through 8.
9.
Press
ESC
.
10. Remove input pressure from High port on CAMM.
5. Press
ESC
and then
UP
, display will indicate:
Transducer Span
Calib: X.XX in.WC
6. Apply input pressure (as read on manometer) to the High port of the CAMM. Adjust pressure to equal the
transducer natural span value, which is indicated on the display.
7. Press
ENT
, and display will indicate:
Transducer Span
-- Push ENTER --
8. Press
ENT
, and display will indicate:
Transducer Span
Settle Time:4
Summary of Contents for CAMM
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