Temp-485-Pt100, RS485, Temperatur Sensor / Sensoren, Temperatursensor, Temperatursensoren, Temperature probe

Temp-485-Pt100 is a converter/thermometer, which converts temperature from a sensor (Pt100 and Pt1000) to communication protocol over RS-485 busbar. The sensor can be used separately but it is designed for connection to the Poseidon measuring unit.

Temp-485-Pt100 communicates over 4-conductor busbar. To one busbar it's possible to connect parallely up to 31 sensors. The busbar uses 4 conductors, two with a standard RS-485 line (up to 1200 m), the other two are intended for powering sensors.

* Converter: Signal from Pt100 is transferred to RS-485. Thermal sensor is usually located outside the converter box.

* Thermometer: Contains both thermal (Pt100) sensor and converter to RS-485.

The product signature Temp-485-Pt100 covers several device versions, as listed below, that are available. They are mostly converters (Pt100 to RS-485), because a thermal sensor is located outside the device unit. The "Box" version contains the thermal sensor on a box, which means it represents whole thermal sensor.

		Temp-485-Pt100 „Box“ version The thermometer consists of a box for wall mounting, which contains the RS-485 converter / temperature sensor and the Pt100/A sensor itself. The thermal sensor is assembled on the top of the rod on the plastic box with IP65 shielding protection.

		Temp-485-Pt100 „Cable“ version The thermometer consists of a box for wall mounting containing RS-485 converter / thermal sensor. The Pt100/A sensor itself is attached on a 2m long cable and is a part of the shipment.

		Temp-485-Pt100 „Head“ version The „Head“ version is a converter unit of the temperature monitored by an external thermal sensor to the RS-485 data bus. The converter's mechanic construction is intended for mounting to a unified "B" thermometer's head. For thermometer's construction it is necessary to connect an external Pt100 thermal sensor - platinum sensor (not part of the shipment) which is connected by two or three conductors.

		Temp-485-Pt100 „DIN“ version The „DIN“ version is a converter unit of the temperature measured by an external thermal sensor, to the RS-485 data busbar. The converters mechanic construction is intended for mounting to a DIN molding. For thermometer's construction it is necessary to connect an external Pt100 thermal sensor - platinum linear sensor (not part of the shipment) which is connected by two or three wires.

		Temp-485-2xPt100 „DIN“ version The unit is identical to the Temp-485-Pt100 „DIN“ version but allows connection of two external Pt100 thermal sensors to a single unit. One box therefore responds at two different addresses at the RS-485 line.

		Pt100 - the PT30 type Individual Pt100 thermal sensor for connection to converters. PT30 contains a thermal sensor in a metal rod made of stainless material and is connected by a four-wire cable with a teflon insulation, metal covering with silicone insulation

		Temp-485-Pt100 version „Frost“ Temperature probe for extremely low temperature measurements, equivalent to "Cable" version. The probe for measurements from -190°C and connecting cable are part of the supply.

Temp-485-Pt100 uses for temperature measuring a standard platinum thermal Pt100 sensor. The thermal sensor can by either a mechanical part of a thermometer in a measuring stem or external sensor, connected by two or three wires.

Application

* Industrial measuring systems with accurate temperature measuring.
* Refrigerator measuring systems with embedded thermal sensors
* Accurate temperature measuring in wide range
* Wide measuring systems with lots of measuring points
* Climatization state measuring and measuring of living conditions in intelligent buildings
* Independent measuring in food warehouses and agricultural crops storage buildings
* Grocery storehouses and premises, hard measuring conditions..
* Thermal and humidity monitoring in pharmaceutical storages
* After connection to Poseidon (all models with RS485 bus) – temperature transmission over Ethernet or Internet
* After connection to Poseidon models 2XXX – possible logging of up to 100 000 values into internal Flash memory.

Basic properties

* Temperature measuring within the range of -55°C to +640°C
* Measuring accuracy cca ± 0,2°C (± 0,3°C if the „Head“ and „DIN“ versions are not calibrated with actual thermal sensor .
* Possible connection of one or two external Pt100 or Pt1000 sensors (Pt100 / Pt1000 defined by model - ask for more)
* External Pt100 thermal sensors can by connected by two or three conductors.
* Each sensor is tested and calibrated from factory, at extra cost it's possible to supply calibration protocols
* Up to 31 sensors parallely at one busbar
* Suitable for factory environment, RS-485 line communication (up to 1000m distance)
* Minimal power consumption, possible power supply by unstabilized voltage.
* The sensors works with SNMP thermometer Poseidon

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