MASS-tron II/CEM
Air Monitor Corporation
116-004-94.P65 (8-31-10)
MASS-tron II/CEM
- IO&M Manual
SECTION 6 – CALIBRATION
6.3 – TRANSMITTER INPUT CALIBRATION (con't)
6.3.2
Absolute Pressure Calibration
.
With minimum and maximum absolute pressure applied, MASS-tron II/CEM will be programmed to recognize
these values for Density Compensation.
1. Prepare test equipment as shown in Figure 6.2. Have vacuum pump preset to approximately the required
minimum pressure (see Factory Set-Up Information Sheet).
Figure 6.2
2. While in Transmitter Input Calib., scroll to:
Abs. Pressure Zero
Calib: 24.00 in.WC
3. Start vacuum pump and adjust (as read on gauge) to minimum absolute pressure value, which is indicated
on the display.
4. Press
ENT
, and display will indicate:
Abs. Pressure Zero
-- Push ENTER --
5. Press
ENT
, and display will indicate:
Abs. Pressure Zero
Settle Time:4
Display will count down to 0, after which it will indicate:
Input Zero Done
-- Push ESCAPE --
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