Pressure transmitter TST-K121
Measuring ranges from 0 ... +40 mbar to 0 ... +250 bar
Output signal 4 ... 20 mA (2-wire) or 0 ... 10 V DC (3-wire)
Dry ceramic measuring cell and robust stainless steel housing
Vacuum-proof and high overload resistance
Total measurement error ≤ 0.2 % FS
product description Pressure transmitter TST-K121
The pressure transmitters type TST-K121 have got a vacuum-proof, dry ceramic measuring cell which delivers precise and reliable measuring results even at very small measuring ranges, starting from 0 ... +40 mbar. The measuring range can be freely calibrated from 0 ... +40 mbar up to 0 ... +250 bar and is characterized by a high overload resistance. Most pressure ranges are also available as absolute pressure sensor. The permissible media temperature is -40 ... +100 °C. 4 ... 20 mA (2-wire) or 0 ... 10 V DC (3-wire) are available as analogue output signal. The TST-K121 is available with several common process connections and connection plugs. The pin assignment of the connection plug can be freely selected.
| Standard pressure ranges TST-K121 for gauge pressure measurement Absolute pressure measurement or individual pressure ranges on request |
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| Measuring range | P(mbar) | 40* | 50* | 60* | 100 | 160 | 200 | 250 |
| Overpressure | P(bar) | -0,3 / +4 | -0,3 / +4 | -0,3 / +4 | -0,3 / +4 | -0,6 / +5 | -1 / +6 | -1 / +6 |
| Measuring range | P(bar) | 0,4 | 0,5 | 0,6 | 1,0 | 1,6 | 2,0 | 2,5 |
| Overpressure | P(bar) | -1 / +6 | -1 / +6 | -1 / +10 | -1 / +10 | -1 / +18 | -1 / +18 | -1 /+18 |
| Measuring range | P(bar) | 4,0 | 5,0 | 6,0 | 10 | 16 | 20 | 25 |
| Overpressure | P(bar) | -1 / +25 | -1 / +40 | -1 / +40 | -1 / +40 | -1 / +40 | -1 / +40 | -1 / +40 |
| Measuring range | P(mbar) | -100 ... 0 | -100 ... +100 | -200 ... 0 | -200 ... +200 | |||
| Overpressure | P(bar) | -0,3 / +4 | -1 / +6 | -1 / +6 | -1 / +6 | |||
| Measuring range | P(bar) | -1 ... +1 | -1 ... +3 | -1 ... +5 | -1 ... +9 | -1 ... +15 | -0,8 ... +1,2 | |
| Overpressure | P(bar) | -1 / +10 | -1 / +25 | -1 / +40 | -1 / +40 | -1 / +40 | -1 / +10 | |
* the total measurement error for this measuring range is ≤± 0.5 % FS
| Technical data | Pressure transmitter TST-K121 |
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| Electrical parameters | ||
| Output signal Operating voltage UB Permitted max. load RA Recommended max. load resistor RL |
4 ... 20 mA (2-wire) 9 ... 30 V DC RA ≤ (UB - 9 V) / 20 mA |
0 ... 10 V DC (3-wire) 12 ... 32 V DC RL > 5 kΩ |
| Response time (10 ... 90 %) | < 200 ms | < 200 ms |
| Accuracy specifications | ||
| Total error at RT |
≤± 0.20 % FS - including nonlinearity, hysteresis, zero point and full scale error (according to IEC 61298-2). |
|
| Stability per year | ≤± 0.15 % FS | |