KELLER PR-21Y / 10BAR / 81554.33 / 4-20mA Pressure Sensor, -40 to 100℃, Current, 10bar, Gauge, 28VDC, G1/4 1/4" BSP
The PR-21Y / 10BAR / 81554.33 / 4-20MA is a Y-line Transmitter that has an extremely small temperature error. This is achieved using an additional circuit containing a temperature sensor that subdivides the temperature range into fields that are 1,5 Kelvin K wide. The TK zero and TK compensation values are calculated for each field and programmed into the additional circuit. During operation, these values are fed into the analogue signal path depending on the temperature. Each temperature is the "calibration temperature" for this transmitter. The accuracy thereof is mainly determined by linearity. 120 fields are available, representing a possible temperature range of 180 K. The wider the temperature range, the greater the amount of testing that is needed to minimise the inaccuracy of the mathematical model. The product is outstanding due to its extreme ruggedness towards electromagnetic fields.
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- 10bar Pressure range
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- ±0.5%FS Maximum stability
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- 4 to 20mA Signal output
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- 2kHz Limiting frequency
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- Silicone oil filling