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.
Measuring range:-10 to 28 mV // -10 to 80 mV (Temp. see table)
Simulation/Generation
| Generation range: | -10 to 28 mV // -10 to 80 mV (Temp. 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 |
| Preset memories: | 6 (S1…S6) |
| Over voltage 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 |
| Over voltage 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 |
| Preset 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 |
| Measuring 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 |
| Measuring 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: | 10 mm LCD, 4½ digits, 7 segments with blue backlight Maximum display: -19999 a 19999 |
Microprocessor
– The T258 incorporates a microprocessor that controls all functions of the instrument.
– 16-bit A/D converter.
– EEPROM, non-volatile memory for storing configuration and adjustment data.
– Display of the measurement and the general programming functions.
– 16-bit D/A converter.
– Automatic disconnection of the equipment power supply.
Feeding
– Accumulator: 1 NiMH 9 V battery 250 mA/h
– Battery charging time: 16 hours
– Autonomy: 14 hours
– General connection and disconnection of the power supply by means of a single key.
– Automatic disconnection of the equipment when the battery is depleted to avoid permanent deterioration of the battery.
– Below 10 % of charge the instrument will display the message “Lbat”.
Ambient conditions
– Storage temperature: -10 to 60 °C (-4 to 140 °F)
– Operating temperature: 0 to 50 °C
– Relative humidity: 0 to 95 % non-condensing
Contents
The T258 standard instrument is supplied with the following accessories:
– Battery charger ref. PS-50B
– 2 sets of banana-crocodile cables ref. PN1041
– Set of banana-miniTC male cables (copper-copper)
– 1 additional miniTC male connector (copper-copper)
– Carrying bag ref. GOM001
– Instruction manual
– Calibration certificate
Pol. Ind. Riera de Caldes
C. Basters, 17
08184 Palau-Solità i Plegamans
Barcelona – Spain
[email protected]
+34 93 864 68 43 (Barcelona)
+34 91 371 00 42 (Madrid)
+34 647 923 602 (Valencia)
