995,00€
Gometrics offers a new temperature calibrator, more versatile than the previous generation. The T258 meter/generator is a portable instrument with dual function: in addition to being able to accurately read a temperature probe, it is capable of generating resistance or millivolts to simulate Pt100 resistance thermometer type probes or B, E, J, K, N, R, S, and T thermocouples.
Gometrics offers a new temperature calibrator, more versatile than the previous generation. The T258 meter/generator is a portable instrument with dual function: in addition to being able to accurately read a temperature probe, it is capable of generating resistance or millivolts to simulate Pt100 resistance thermometer type probes or B, E, J, K, N, R, S, and T thermocouples.
It is a robust, easy-to-use tool specially designed for calibrating probes and testing temperature measurement loops.
The simulation function allows to generate the electronic signal equivalent to the temperature value to be simulated. These operations can be performed either in resistance value (Ohm) or millivolts (mV) or directly in degrees of temperature (°C Celsius or °F Fahrenheit), just by pressing the corresponding key at the start of the job. In simulation, the instrument supports pulsed excitation current.
The T258 is compatible with resistive temperature probes type Pt100 according to IEC 385 and IEC 3926 and thermocouples type B, E, J, K, N, R, S and T according to IEC 584-1. The different sensors can be configured through the keypad.
The instrument is equipped with keys S1 to S6 that allow to store in memory six fixed simulation points in order to generate these points in successive jumps automatically using the AUTO key. The cycle is continuously ascending and descending.
This model incorporates a temperature sensor for measuring the cold junction. Its backlit display makes it easy to read in dark environments. In addition, the resolution and accuracy offered by the T258 are excellent, in line with the rest of the instruments in the new Tinycal range.
| Simulation/Generation | |
| Generation Range: | -10 to 28 mV // -10 to 80 mV See table |
| Resolution: | -10 to 19.999 mV (0.001 mV / 0.1 °C) 20 to 80 mV (0.01 mV / 0.1 °C) |
| Accuracy at 23° ±3°C: | ±0.025 %FS |
| Uncertainty at 1 year: | ±0.05 %FS |
| Cold Junction Compensation: | 0 to 50°C / ±0.5°C |
| Pre-selection Memories: | 6 (S1…S6) |
| Overvoltage Protection: | ±30 VDC |
| Temperature Coefficient: | ±0.003% / °C |
| Keypad: | 14 membrane keys |
| Measurement | |
| Resolution: | -10 to 19.999 mV (0.001 mV / 0.1 °C) 20 to 80 mV (0.01 mV / 0.1 °C) |
| Accuracy at 23° ±3 °C: | ±0.025 %FS |
| Uncertainty at 1 year: | ±0.05 %FS |
| Cold Junction Compensation: | 0 to 50 °C / ±0.5 °C |
| Input Impedance: | > 10 MΩ |
| Overvoltage Protection: | ±30 VDC |
| Temperature Coefficient: | ±0.003 % / °C |
| Simulation | |
| Accuracy at 23° ±3 °C: | Range -200 to 200 °C 0.05 °C Range 200 to 850 °C 0.1 °C |
| Uncertainty at 1 year: | Range -200 to 200 °C 0.2 °C Range 200 to 850 °C 0.4 °C |
| Sensor Current Range: | 0.1 to 2 mA |
| Pre-selection Memories: | 6 ([S1]…[S6]) |
| Overvoltage Protection: | ±30 VDC |
| Simulation Range: | -200 to 850 °C / 0 to 400 Ω |
| Resolution: | [0 to ±200 °C] or [0 to 200 Ω] – 0.01 °C / 0.01 Ω [200 to 850 °C] or [200 to 400 Ω] – 0.1 °C / 0.1 Ω |
| Temperature Coefficient: | 0.003 %FS / °C |
| Keypad: | 14 membrane keys |
| Measurement | Accuracy at 23 °C ±3 °C: Range -200 to 200 °C 0.1 °C Range 200 to 850 °C 0.2 °C (+1 count) |
| Uncertainty at 1 year: | Range -200 to 200 °C 0.2 °C Range 200 to 850 °C 0.4 °C (+1 count) |
| Sensor Current: | approx. 1 mA |
| Measurement Range: | -200 to 850 °C / 0 to 400 Ω |
| Resolution: | [0 to ±200 °C] or [0 to 200 Ω] – 0.01 °C / 0.01 Ω [200 to 850 °C] or [200 to 400 Ω] – 0.1 °C / 0.1 Ω |
| Temperature Coefficient: | 0.003 %FS / °C |
| Input Impedance: | >10 MΩ FS |
| Display | Type: LCD 10 mm, 4½ digits, 7 segments with blue backlight Maximum Indication: -19999 to 19999 |
| Microprocessor | The T258 incorporates a microprocessor that controls all instrument functions.
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| Power Supply |
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| Physical Characteristics | |
| Dimensions: | 83 x 154 x 47 mm |
| Weight: | 341 grams |
| Connections: | 3 terminals for 4 mm Ø banana plugs 1 miniTC female jack 3.5 mm Ø power jack |
| Environmental Conditions | |
| Storage Temperature: | -10 to 60 °C |
| Operating Temperature: | 0 to 50 °C |
| Relative Humidity: | 0 to 95 % non-condensing |
**Included Content**
The standard T258 instrument is supplied with the following accessories:
