Condec UPC5210 - Manual (Page 13)

10 UPC5200/UPC5210 Operation and Maintenance Manual
3.3 Zero/Span Calibration
Selecting the ZERO/SPAN position on the Condec Calibration Module (PN 60109) places the instrument into its
ZERO/SPAN calibration mode. The display is shown in Figure 3-2.
NOTE: Absolute only unit requires vacuum pump with PSIA test standard to obtain readings below local barometric
pressure.
Figure 3-2. Zero/Span Calibration for Gage Only Units
Starting with the instrument's lowest pressure range, perform steps 1 and 2 shown in Table 3-1 for each pressure
range.
NOTE: Perform step 1 in all ranges prior to doing step 2.
Perform the following for each step:
1. Gage Only Units: Adjust input pressure to the appropriate (either 0 or 100%) value.
Absolute Only Units: Must use a vacuum pump with PSIA test standard, to reach as close to 0 PSIA as
possible (maximum .05 PSIA).
2. Perform the action indicated by Table 3-1 when pressure input readings are stable.
NOTES:
1. If readings are not stable or are not within ± 20% of zero, the zero correction cannot be entered.
2. If readings are not stable or are not within ± 5% of 100%, the span correction cannot be entered.
3. Absolute only unit: Maximum PSIA test standard display reading of 0.05 PSIA.
3.4 Linearity and Hysteresis Calibration
Install the Condec Calibration Module, (PN 60109), and select the LYN/HYS position of the rotary switch on the
module. This places the UPC5200/UPC5210 into its linearization/hysteresis calibration mode. The display is
shown in Figure 3-3 below.
NOTE: The Zero/Span Calibration needs to be performed prior to Linearity and Hysteresis Calibration . For Absolute only
unit, vacuum pump with PSIA test standard must be used to obtain readings below local barometric pressure.
STEP NO. PRESSURE
INPUT VALUE
OPERATOR ACTION
REQUIRED
RESULTING DISPLAY
INDICATION
REMARKS
1 0%
(Note 3 below)
Press ENTER button 0% Note 1 below
2 100% Press ENTER button 100% Note 2 below
Table 3-1. Zero and Span Calibration Sequence