Condec UPS3210 - Manual (Page 23)

Calibration and Adjustment Procedure 19
3.0 Calibration and Adjustment Procedure
The simple step-by-step calibration sequence provided on the following pages will permit a qualified technician
to calibrate an entire UPS3000, UPS3110 or UPS3210 instrument in a matter of 45 minutes.
However, it must be strongly emphasized that when performing these tests, the computer within the instrument is
actually being re-programmed and as such, it is imperative that the pressure standard being used be in
satisfactory operating condition and that the technician fully understands its operating characteristics and
methods of usage. In addition, the UPS3000/UPS3110/UPS3210 itself must be properly warmed up
(approximately 10 minutes) and electrically stabilized prior to performing a calibration cycle.
NOTE: The CONDEC Repair Lab is equipped to do calibrations on CONDEC calibrators and pressure
standards.Calibrations include a certification and are traceable to N.I.S.T (see“UPS3000/UPS3110/UPS3210 Return
Material Authorization Form”).
3.1 Pneumatic Calibration Set-Up
Figure 3-1 defines a typical gage or absolute/gage calibration set-up using a floating piston type dead weight
tester. While doing an ABSOLUTE Only Unit calibration, a vacuum pump with an indicator capable of reading
PSIA will be required where the dead weight tester/pressure source is shown in Figure 3-1. This enables going
below local barometric pressure.
NOTE: Any type of precision pressure or vacuum standard is acceptable as long as its basic accuracy is ±0.025% of
point or better.
To permit proper calibration at least an “ON/OFF” and a “VENT” valve, connected as shown in Figure 3-1 must
be provided.
Figure 3-1. Instrument Calibration Set-Up
NOTE: UPS3000 shown, AC Input and Pressure Ports are on back side of all models.