Zero/Span Calibration; Linearity And Hysteresis Calibration - Condec UPC5200 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.
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
2. Perform the action indicated by Table 3-1 when pressure input readings are stable.
STEP NO. PRESSURE
INPUT VALUE
1 0%
(Note 3 below)
2 100%
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.
10 UPC5200/UPC5210 Operation and Maintenance Manual
Figure 3-2. Zero/Span Calibration for Gage Only Units
possible (maximum .05 PSIA).
OPERATOR ACTION
REQUIRED
ENTER
Press button
ENTER
Press button
Table 3-1. Zero and Span Calibration Sequence
RESULTING DISPLAY
INDICATION
0%
100%
REMARKS
Note 1 below
Note 2 below