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.
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| 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 | Graphical (128x64) LCD with backlight | |||||
| Function | Ω | mA | mV | V | RTDs | T/Cs |
| Resolution | 0.1Ω | 1μA | 10μV | 1mV | 1mV | 1mV |
| Voltage | > 1MΩ |
| Current | 1 or 10Ω depending on range |
| Resistance | Bridge current of 0.1 to 1 mA depending on range |
| Voltage | < 0.05Ω |
| Current | > 1MΩ |
| 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 |
| 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 | |||||
| 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 |
| 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 |
| Optional | NABL Calibration certificate |
