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1 GENERAL PERFORMANCE
A complete system for testing, measuring and calibrating built in a single, compact portable instrument. The portable
calibrator
CL526
is a multifunction instrument designed to meet, in a modern and practical way, the needs of
instrumentation engineers, both in laboratory and field work.
Accurate, compact, rugged, easy to use; the ideal solution for measuring and simulating:
•
millivolts
•
volts
•
milliamperes (active and passive loop)
•
ohms
•
thermocouples
•
resistance thermometers
The
CL526
has been developed using the most advanced microprocessor technology to provide high accuracy on
extended ranges and a powerful operating flexibility.
The modular firmware includes the algorithms of thermocouples and resistance thermometers in accordance with IEC,
DIN standards. IPTS68 and ITS90 linearization are memory stored and can be selected through the keyboard.
The simulation-measurement of resistance and temperature with resistance thermometer uses a special proprietary
active circuit.
An unique internal automatic Rj compensation system allows the CL526 to provide accurate input and output readings
over wide operating conditions, with a temperature range from -5°C to +50°C. Further, external compensation is
available with temperature adjustable from -50°C to +100°C.
The selection of operating functions is made on a polycarbonate thermoformed membrane keyboard which assures up to
one million operations per key.
Two thick film membrane “slidewires” are used to set the simulated signal value.
Measured and simulated values are indicated on a high quality LCD dot matrix display which provides good contrast
even in poor light conditions.
A menu-driven procedure allows for the generation of up to 60 memory stored values, or, for continuous or step ramp
values.
The instrument carries out mathematical functions for averaging unstable input signals and, in combination with scale
factor, square root calculation.
The case, made in shock-resistant ABS, is ergonomically designed for easy practical use.
The instrument is powered by four Ni-MH rechargeable batteries; an external battery charger is supplied as a standard
accessory.