WinQbase software application system is designed for creating of inventory of various types of measuring instruments and of their calibrations. It is assumed using in calibration laborotories. Inventory contains all important data about meters. Records can be sorted according to various criteria. Among other features, WinQbase software contains records of calibrations with test report and recorded calibration conditions, used calibration procedures, repairs, history of changes in inventory records and calibration records etc. The WinQbase program allows to obtain various types of instrument overviews by selected criteria, seek executed calibrations, history of records, etc.
 
A part of software package is execution module CALIBER, which is aimed for automatic and semiautomatic calibration of meters of various quantities, both digital and analogue. CALIBER can be used generally for calibration of any meters. For calibration of multimeters it is equipped with extra build-in features. Basic philosophy is found on by user prepared calibration procedures for calibration of concrete meter or source as DUT - calibrated via concrete source (or meter) of standard values. For this purpose CALIBER contains calibration procedure generator with easy control. Calibration procedures are generated automatically from software instrument cards of instruments which take part in calibration. Instrument cards contain all information about meter/source, which are important from calibration point of view like functions, ranges, accuracy, etc. Software automatically calculates deviations of DUT and calibration uncertainty according to standard EA-R4. Samples of calibration procedures and frequently used instrument cards can be downloaded on Meatest´s web site.
Communication of individual system instruments runs on a standardized bus GPIB or RS-232. Digital displays of the meters can also be scanned by camera module CAM-OCR. The system output is a calibration test report containing measured values and their evaluation.

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Database of tested instruments

• Sorting features: several ways of grouping of the instruments
• Searching records, filters: searching inventory and calibration records according to the entered values
• User´s items:  items defined by user
• Prepared database structure

Automatic calibrations

• Checking parameters of devices under test automatically or semiautomatically
• Calibration certificates creating and printing, easy modification of certificate format
• All most common calibrators compatible also Fluke and Wavetek calibrators are compatible

Types of devices under test

Digital meters 31/2 to 71/2 (with external standard multimeter) Analogue meters Clamp meters, calibrated by calibrator with current coil Transducers with analogue output 10 V/20 mA or frequency output

Examples of devices under test

• Multimeters, V-meters, A-meters
• Ohmmeters, power meters, one-phase power transducers, PF meters
• Scopes, recorders

Available hardware connection

• GPIB interface, normalized GPIB interface can be used for both standard unit and unit under test connection to PC.
• RS-232 serial line, for standard unit, unit under test and THV monitor (temperature/humidity scanner)
• Camera module for non-system units under test with digital display. Meter display is scanned via camera module, transferred into number and it is used as unit under test reading. No manual typing on keyboard is need.

Calibration procedure engine

• Based on instrument cards:
  Instrument card contains all information necessary for automatic calibration like instrument specification (function - range - accuracy), method of control (GPIB, RS, manual, camera scanning) and some other information. Every instrument which is used during calibration must have its own instrument card.
• Easy generation of calibration procedures:
  Calibration procedure is build automatically in 4 steps consisting selection of used instruments, functions, ranges, calibration points. Suitable calibration points are offered to include into calibration procedure. Calibration procedure can be created without any knowladge of programming.
• Variability of standards:
  Up to 5 instruments can be used for calibration of DUT in one automatic calibration procedure. Except main standards like calibrators, multimeters also external multimeter, resistance shunts, transformers, transducers etc. can be used as source of standard value.

Variability of generated procedures

• Simple or multiple readings of instrument under test value
• Evaluation of uncertainties type A and B, in accordance with recommended methodology
• Linearity checking procedure for easier creation of calibration procedures
• Special sub-procedures for analogue meters with hysteresis evaluation

Other features

Password protection excess Back-up function type A and B History of the record available Build-in help Network version Export of database

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