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Datasheet VPT5

Datasheet VPT5
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Measuring transducer for temperature, input Pt100/Pt1000 with two-wire-circuit 1 2 Straightforward application Suitable for severe operating conditions Compact construction Galvanic isolation between sensor input and Umgeb. Amb. Temp Temp: : output signal to the operating voltage • Anti-tamper seal for the ﬁne adjustment Provision made for ﬁne adjustment of measuring range Measuring Transducers Meet high EMC-requirements requirements Short-circuit-proof output selectable from 0 ... 10 V/DC, 2 ... 10 V/DC, 0 ... 20 mA, 4 ... 20 mA Broken-wire monitoring of input signal Operating characteristics displayed by integrated LED Flame-inhibiting and self-extinguishing body Short-circuit monitoring of input signal Suitable temperature sensors are available (NORIS-type TP.1, TP.2, TP.3) Measuring transducers of series 5 Measuring transducers of the Series 5 are designed to convert electric input values into standardised output signals. Principle of operation: The transducer signal measured at the converter input is converted into a standardised output signal that is proportional to the input and lends itself to further customised processing, for instance, in a machine controller. General notes on Type VP5.., VPT5.. Description VP5.., VPT5.. Output signal The measuring transducers VP5.. and VPT5.. are designed to The output signal generated is a standardized voltage of evaluate the temperature with platinum Pt100 RTD (VP5..) or Pt1000 0 ... 10 V/DC or 2 ... 10 V/DC, respectively, a standardized current of RTD (VPT5..) according to EN60751 Class B in two-wire circuit. A 0 ... 20 mA or 4 ... 40 mA. The output signal follows the input signal platinum resistor has a positive temperature coefﬁcient which means that the resistance increases as the temperature rises. Access is provided to a trimming potentiometer to permit a line compensation to be applied for Pt100 RTD measuring transducers. The output signal can be used to supply additional devices, such as indicating instruments and limit-value switches. Point to be noted: the maximum driver capability of the output. Pt1000 RTDs do not require such compensation because, in principle, line resistance can be neglected. For better adaption to the required measuring task four measuring ranges are prepared: -30 ... +120 °C, 0 ... 120 °C, 0 ... 150 °C, 0 ... 200 °C. Monitoring for integrity and short circuit The devices are designed with sensor monitored for discontinuity and short circuit. In the event of any fault, the output signal setting is 22 mA or, respectively, 11.5 V. Electric isolation Sensor input and output signals are electrically isolated from Operating status display by LED the operating voltage. Multiple operation of ampliﬁers and evaluation The green LED will be lit when the operating voltage is applied devices is therefore possible at the same operating voltage. The and the device is working normally and also when a broken wire sensor only supplies one ampliﬁer device. occurs, it will be ﬂashing in case of short circuit. In addition triggers a broken wire und

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