Universal Calibrator UniCal 38534

The Universal Calibrator (UniCal 38534) is a micro-controller based portable, battery-operated, precision instrument designed for sourcing and measuring Ohm, RTD, mA, mV, T/C and V signals. A graphical (128x64) LCD with backlight gives excellent user interface. It is designed to calibrate a broad spectrum of instruments and retain its precision and repeatability over long periods in worst environmental conditions. An exceptionally stable voltage/current source provides continuously variable precision output signals with two ten-turn potentiometers.

Features

Sources & measures Ohms, RTDs, mA, mV, TCs, V
High precision, accuracy, reliability & longevity
Graphical(128x64) LCD with backlight for excellent UI
Simultaneous display of temperature & mV or Ohms
Auto or Manual cold junction compensation (CJC)
Continuous indication of cold junction temperature
Compact in size and built for toughest environments
Unique self-check facility ensures reliable operations
Powered by AC/DC adapter or 6 AA Ni-Mh batteries

Application

Powers (24VDC) & calibrates 2-wire transmitter
Simulates transmitter (with 24VDC loop power)
Simulates & measures T/Cs with Auto/Manual CJC
Simulates & measures multiple RTDs
Works as voltage and current regulator or source
Powers (24VDC) and calibrates control valve positioner
Calibrates various temperature and process indicators

StartStop

Technical Specifications

Specification

Resistance	RTDs^[1]		DC Current^[2]	DC milliVolts	T/Cs^[3]		DC Volts

					Type B	250 to 1820°C
	Pt46	-200 to 850°C			Type E	-200 to 1000°C
	Pt100	-200 to 850°C			Type J	-210 to 1200°C
0-500 Ω	Pt200	-200 to 400°C	0 to 20 mA	-10 to 200 mV	Type K	-200 to 1372°C	0 to 20 V
	Cu53	-50 to 180°C			Type N	-200 to 1300°C
	Ni100	-60 to 180°C			Type R	-50 to 1768°C
					Type S	-50 to 1768°C
					Type T	-200 to 400°C

0.1 Ω	0.1 °C		1 μA	10 μV	1 °C		1 mV

Display Specifications

Display	Graphical (128x64) LCD with backlight
Function	Ω	mA	mV	V	RTDs	T/Cs
Resolution	0.1Ω	1μA	10μV	1mV	1mV	1mV

Input Impedance

Voltage	> 1MΩ
Current	1 or 10Ω depending on range
Resistance	Bridge current of 0.1 to 1 mA depending on range

Output Impedance

Voltage	< 0.05Ω
Current	> 1MΩ

Source Capability

Voltage	Up to 15V in 600Ω or 20V in 2000Ω
Current	Up to 25 mA in 600Ω or 20mA in 800Ω
Resistance	Up to the maximum specified range

Other Specifications

Mains Operation	Power jack for AC/DC adapter/charger (230VAC,50Hz to 9VDC,200mA)
CJ Compensation	Automatic and Manual CJ compensation
CJ Error	1°C for 5 ≤ TA ≤ 55°C
Effect of leads	1°C for lead resistance of 100Ω per lead
Input Protection	I/O terminals are protected upto 24 VDC for Ω/V and 48 VDC for mA
Storage Temperature	0 to 70°C w/o batteries
Humidity	Less than 90% Rh (Non-condensing)
Operating Temperature	5 to 55°C

Function	Ω	mA	mV	V	RTDs	T/Cs
Resolution	0.1Ω	1μA	10μV	1mV	1mV	1mV
Accuracy	± 0.02% rdg ± 0.01% FS ± 2 dgt				± 0.05% rdg ± 0.05% FS ± 1 dgt
Self-check	17777 ± 2 digits

Power Supply options are as follows:

Battery Type	Battery Life	Status
6 AA sized Ni-Mh batteries with longer life for field use	10 - 12 Hrs. @ 12 mA output current	Displays battery level using status bars and "LoBAT"

Mains Operation	Power jack for AC/DC adapter/charger (230VAC,50Hz to 9VDC,200mA)
CJ Compensation	Automatic and Manual CJ compensation
CJ Error	1°C for 5 ≤ TA ≤ 55°C
Effect of leads	1°C for lead resistance of 100Ω per lead
Input Protection	I/O terminals are protected upto 24 VDC for Ω/V and 48 VDC for mA
Storage Temperature	0 to 70°C w/o batteries
Humidity	Less than 90% Rh (Non-condensing)
Operating Temperature	5 to 55°C
Zero Drift	< 1dgt per 10°C outside the range of 22 ≤ TA ≤ 32°C
Span Drift	< 0.0015% of rdg per °C

Enclosure Dimension	125(W) x 200(H) x 55(D) mm
Enclosure Finish	Powder coated
Weight	1 Kg w/o batteries

Accessories	Included	BS-5(4mm) probes, crocodile clips, DP2, SP3, screw driver, leather case, AC/DC adapter
Accessories	Optional	6 AA sized Ni-Mh batteries, external battery charger(s), wooden case
Documentation	Included	Warranty certificate[1], Calibration certificate[2], User manual, RTD & T/C temperature tables
Documentation	Optional	NABL Calibration certificate

Multifunction Calibrators

RTD Simulators

T/C Simulators

Process Calibrators

Temperature Indicators

Temperature Scanners

Process Indicators

Support

Service upto 10 yrs
Calibration in < 72 Hours
Thorough analysis for repairs
Repair completion in < 1 week