Instruction Manual MM850432 ed. 05c
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3 DESCRIPTION
MicroCal 20 DPC
(Documenting Process Calibrator) series are hand-held, high accuracy, process multifunction calibrators.
General features include: dual (simultaneous IN-OUT or simultaneous IN-IN) insulated channels, two internal pressure sensors, external pressure modules, automatic calibration
procedure, large graphic and back lighted display.
Dual input channels
Same models only, have both channels (CH1 and CH2) settable for simultaneous input. You can use the calibrator as a two channels high accuracy thermometer for TCs and RTDs
certification.
4-wire resistance thermometer
Resistance and temperature with resistance thermometer may be measured on a 2, 3 and 4 wire connections for best accuracy and resolution (0.01°C).
Eurotron Patent n.206327 is used for the active simulation circuit.
Rj compensation
Accurate and fast response compensation, through a special low thermal capacity design of binding posts, incorporating a thin film high accuracy Pt100 as cold junction reference. The
internal reference allows the maximum accuracy for the -10°C to +55°C temperature range. It is possible to set manually the compensation temperature (from -50 to +100°C) by
keyboard.
Frequency - Counts
Simulation mode is designed to generate a zero based square pulse, with an adjustable amplitude, at a frequency up to 20 KHz. A pre-set number of pulses may be programmed and
transmitted to test or calibrate totalizers and counters. The instrument can be configured to measure frequency and count pulse (totalise mode). Technical units in Hz, pulse/h and
pulse/m.
Internal pressure sensors
Optional one or two built-in pressure sensors are available to cover main pressure application including gauge, differential, absolute, and vacuum. The calibration matrix
pressure/temperature is stored in internal non volatile memory.
External pressure modules
Each unit is equipped with a connector for external pressure "smart" modules. A wide selection of modules are available as accessories for ranges up to 700bar. The calibration matrix
pressure/temperature is stored in internal non volatile memory.
Built-in environmental module
Ambient temperature, Relative Humidity, and Barometric pressure sensors can measure environmental condition (EC) parameters to be included in calibration report.
This module in not available on IS models.
Firmware
The firmware is stored on a flash memory and allows a fast and easy upgrade of the instrument using a RS232 and PC software.
Simulation capability
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Auto-ramp and Auto-step capability with Start, End, and Step programmable parameters;
