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Flex-Sky-ES – Nokeval

The Flex-Sky-ES measures temperature with an external PT100/PT1000 sensor connected to a connector in the measurement module of this transmitter. The PT100 sensor is not included in the scope of supply, but any 4-wire PT100 can be used.

Pedak Nokeval flex-sky-es

The Flex-Sky-ES transmitter

An external 4-wire RTD cable PT100 or PT1000 sensor can be connected to the Flex-Sky-ES transmitter. This model contains an internal connection block to connect such a sensor. This is ideal for measurements at higher temperatures (ovens/stoves), where placement of the transmitter at the measuring point is not an option. Also think of refrigerator or freezer applications, where the PT100 sensor will be mounted into the fridge/freezer and can be placed in a glycol bottle to simulate the product temperature.

The Flex-Sky-ES transmitter consist of a radio part and a measurement part, connect a PT100 sensor to registrate temperature measurements. The wireless system is connected with each other through the LoRa signal, this is an advanced modulation technique that achieves much wider wireless ranges than the traditional techniques. The Nokeval Sky product family uses this technology at the license-free 433 MHZ ISM band (in Europe fully accessible). The battery powered 10 MW transmitters have an open-space range of more than 10 kilometres and the practical range is several kilometres in most outdoor applications. The modulation technique tolerates other traffic on the same band very well.

Technical specifications

Inputs: external PT100/PT1000 4-wire sensor connected to the measuring module

Possible measuring range of a connected sensor: -200…+600°C

Accuracy: 0,05% rdg + 0,2°C at 25°C

Sensor connections: internal header with spring-loaded contacts

Casing dimensions: 374 x 60 x 33 mm

Protection class: IP65

Outputs: Sky wireless with LoRa modulation

Radio signal frequency: 433 MHz ISM band

Maximum range: up to 7 kilometres outdoor, up to 500 meters indoor

Operating temperature of the transmitter: -30...+60°C

Power supply: one AA size (ER14500) 3,6V Li-SOCI2 battery

Battery life: up to 5 years, automatically renew by calibration program at Pedak

Antenna: external whip antenna with BNC connector

CheckOptional with calibration

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