The Presys T-25N, T-35N and T-50N models control temperature over an insert in order to calibrate thermocouples, thermoresistances, glass thermometers, thermoswitches,etc. Besides providing high accuracy temperature values, they also allow the measurement of signals generated by the thermocouples, thermoresistances and thermoswitches, which are being calibrated.
This is possible due to an embedded calibrator specific for these types of signal, including 4-20 mA. They incorporate the function of dry block, standard thermometer and calibrator for RTD and TC sensors, besides mA reading.
They present a wide range of programming resources, allowing them to perform automatic calibration of the sensors. In this case, the sensor is placed in the insert and its electrical terminals are connected to the embedded calibrator, the operator defines the calibration points and the number of repetitions, then the process is started so that all the sequence is automatically accomplished.
Another way of performing automatic documented calibrations is by means of ISOPLAN-5 calibration software for PC/Windows™ which uses the RS-232 serial port to connect PC to the dry block. With ISOPLAN-5 it is possible to register sensors and instruments of the factory, generate work orders, create and print calibration certificates and reports, that is, it brings all the advantages of computer data management to the calibration environment.
PRESYS T-25N / T-35N / T-50N Technical Specifications:
T-25N | T-35N | T-50N | |
Operating Range: | -25 °C to +155 °C | -35 °C to +155 °C | -50 °C to +155 °C |
ambient temperature: 23 °C | |||
Accuracy: | |||
with internal reference | ± 0.1 °C | ||
with external probe | ± 0.07 °C | ||
Resolution: | 0.01 °C | ||
Stability: | ± 0.02 °C | ||
Axial Uniformity (40 mm) Dry Block: | ± 0.05 °C Full range | ± 0.06 °C Full range | ± 0.07 °C Full range |
Radial Uniformity Dry Block: | ± 0.01 °C Full range | ± 0.01 °C Full range | ± 0.02 °C Full range |
Heating Time: | 10 min (25 °C to 140 °C) | 16 min (25 °C to 140 °C) | 11 min (25 °C to 140 °C) |
Cooling Time: | 11 min (25 °C to -25 °C) | 16 min (25 °C to -35 °C) | 25 min (25 °C to -50 °C) |
Temperature Uniformity: | 0.05 °C | ||
Weight: | 10.5 kg | 10.5 kg | 12.5 kg |
Power Supply: | 115 or 230 Vac, 50/60 Hz | ||
Electric Power: | 200 W | 300 W | 400 W |
Units / Temperature Scales: | °C or °F / IPTS-68 or ITS-90, user selectable | ||
Display: | Graphic vacuum fluorescent with contrast adjustment | ||
Well Diameter / Depth: | Ø 25.4 mm (1”) / 124 mm | ||
Dimension (HxWxD): | 260 x 180 x 270 mm | 315 x 180 x 270 mm |
PRESYS T-25N / T-35N / T-50N Electrical Input Ranges Specifications
Input | Ranges | Resolution | Accuracy | Remarks |
milivolt | -150 to 150 mV | 0.001 mV | ± 0.01 % FS | Rinput > 10 MΩ auto-range |
150 to 2450 mV | 0.01 mV | ± 0.02 % FS | ||
mA | -1 to 24.5 mA | 0.0001 mA | ± 0.02 % FS | Rinput < 160 Ω |
resistance | 0 to 400 Ω | 0.01 Ω | ± 0.01 % FS | excitation current 0.9 mA auto-range |
400 to 2500 Ω | 0.01 Ω | ± 0.03 % FS | ||
Pt-100 | -200 to 850 °C | 0.01 °C | ± 0.1 °C | IEC-60751 |
Pt-1000 | -200 to 400 °C | 0.1 °C | ± 0.1 °C | IEC-60751 |
Cu-10 | -200 to 260 °C | 0.1 °C | ± 2.0 °C | MINCO 16-9 |
Ni-100 | -60 to 250 °C | 0.1 °C | ± 0.2 °C | DIN-43760 |
TC-J | -210 to 1200 °C | 0.1 °C | ± 0.2 °C | IEC-60584 |
TC-K | -270 to -150 °C | 0.1 °C | ± 0.5 °C | IEC-60584 |
-150 to 1370 °C | 0.1 °C | ± 0.2 °C | ||
TC-T | -260 to -200 °C | 0.1 °C | ± 0.6 °C | IEC-60584 |
-200 to -75 °C | 0.1 °C | ± 0.4 °C | ||
-75 to 400 °C | 0.1 °C | ± 0.2 °C | ||
TC-E | -270 to -150 °C | 0.1 °C | ± 0.3 °C | IEC-60584 |
-150 to 1000 °C | 0.1 °C | ± 0.1 °C | ||
TC-N | -260 to -200 °C | 0.1 °C | ± 1.0 °C | IEC-60584 |
-200 to -20 °C | 0.1 °C | ± 0.4 °C | ||
-20 to 1300 °C | 0.1 °C | ± 0.2 °C | ||
TC-L | -200 to 900 °C | 0.1 °C | ± 0.2 °C | DIN-43710 |
FS = Full Scale
PRESYS T-25N / T-35N / T-50N Ordering Codes:Accuracy values are valid within one year and ambient temperature range from 20 to 26 °C. Outside these limits add 0.001 % FS / °C, taking 23 °C as the reference temperature. For thermocouples with internal cold junction compensation, add a cold junction compensation error of ± 0.2 °C or ± 0.4 °F.