Condec UPS3210 - Manual (Page 6)

2 UPS3000/UPS3110/UPS3210 Operation & Maintenance Manual
1.0 Introduction
Utilizing microprocessor technology, the UPS3000, rack-mountable UPS3110 and UPS3210 instruments offer a
combination of features, performance, versatility and reliability not previously available in a single,
self-contained pressure calibration instrument. The following list notes the features and benefits of each unit:
• Three independent switch-selectable pressure ranges per instrument.
• Nine button-selectable units (PSI, kPa, Bar, mBar, kg/cm
2
, mmHg, inHg, cmH
2
O, inH
2
O) plus percent
of full scale may be displayed on instrument.
• Accuracy of each range equal to or better than ±0.05% Full Scale.
• Both “Gage” and “Absolute” pressure calibrations available via front panel switch selection.
• Automatic self-check: Computer-controlled internal circuitry provides automatic maintenance of both
zero and span calibration data to insure long-term stability and accuracy.
• Digital Display: Eliminates parallax, interpolation and operator judgement errors. Large, bright, red LED
digits provide excellent readability under all lighting conditions.
• UPS3110 only - Using a manually adjustable regulator, the maximum system input pressure is adjusted
to any desired value higher (typically 20 to 50%) than the full scale range of the device being tested. By
virtue of this technique, the unit under test is fully protected from being inadvertently over-pressurized.
• Fast Response: Pressure data refreshed and updated at the rate of 12 times per second.
• Data Output: Serial Data, 20 mA loop, ASCII code format with start, stop and parity bits supplied as
standard practice. RS232 Simplex output available as an option.
• Calibration Integrity: Tamper-proof design. Once calibrated, numerous safeguards guarantee the
integrity of pressure readings obtained. Display prompting provides the operator with functional status
information during both operation and calibration.
• Pressure Media: UPS3000 and UPS3210, any gas or fluid compatible with 17-4 PH stainless steel alloy.
UPS3110, only gas compatible with 17-4 PH stainless steel alloy.
• Simple Operation: All controls and indicators are accessible from the front panel. Accompanying
operator's manual provides clear, concise instructions for system operation
• Safe, Clean Operation: All pressure components are made of brass, copper, aluminum or stainless steel
and proof-tested to at least 150% of maximum operating pressure. In addition, the UPS3110 system
contains a high-pressure relief valve to protect both the operator and system components from harm in
the event of inadvertent over-pressurization.
The heart of this indicator/calibration system is a highly stable and repeatable pressure transducer. These sensors
produce an electrical output signal which is linearly proportional to the applied pressure. This transduction
technique has been employed by CONDEC for many years and has realized hundreds of thousands of hours of
reliable operation.
By combining these sensors with sophisticated microprocessor-based circuitry, an even higher degree of
operational accuracy and precision has been accomplished. For example, computer-generated correction curves
for both the non-linearity and the hysteresis of the sensors improve these characteristics by an order of magnitude
or more. In addition, a “self-calibration” feature insures long-term accuracy by utilizing the computer to generate
and control an internal “shunt calibration mode” of operation. The indicators full-scale reading is compared
against, and if necessary, corrected to the digitally-stored value for full scale obtained at the time of initial
pressure calibration.
The UPS3000 and UPS3210 indicators, as well as, the UPS3110 calibrator has capability for an internal,
rechargeable 12 volt lead acid battery, which provides a minimum of 6 hours of complete usage, when battery is
fully charged. An ON/OFF switch is provided to conserve energy when the instrument is not in use. It also has a
LO BATT indicator. After receiving and prior to operating new battery models, reinstall (+) cable, red wire, on
battery.