Difference between revisions of "NIS-TR Temperature Sensor (RTD)"

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* Direct fifth-order linearization for best accuracy
 
* Direct fifth-order linearization for best accuracy
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= Wiring =
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[[Fichier:MS008 config3.jpeg|picture of sensor pcb and box]]
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{| class="wikitable"
 +
|+Probe settings
 +
|-
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|number of wires
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|jumpers configuration
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|Probe connection
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|-
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|rowspan="3"|4 wires
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|JP2 jumper on 1-2
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|rowspan="3"|FORCE+ IN+ IN- FORCE-
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|-
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|JP3 NC
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|-
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|JP4 NC
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|-
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|rowspan="3"|3 wires
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|JP2 jumper on 2-3
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|rowspan="3"|FORCE+ IN+ IN-
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|-
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|JP3 NC
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|-
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|JP4 jumper ON
 +
|-
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|rowspan="3"|2 wires
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|JP2 jumper on 1-2
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|rowspan="3"|IN+ IN-
 +
|-
 +
|JP3 jumper ON
 +
|-
 +
|JP4 jumper ON
 +
|}
  
  

Revision as of 09:04, 13 July 2017

RTD Temperature Sensor

1 General information

MSxxx Overview

2 Mechanics

  • Dimensions 60 x 95 x 85mm (109mm including fixing brackets)
  • 96mm spacing between brackets
  • IP 65
  • Solid ABS & PC material

3 RTD Temperature sensor properties

  • Handles 100Ω to 1kΩ (at 0°C) Platinum RTDs (PT100 to PT1000)
  • 2-wires, 3-wire or 4-wire connection
  • 15-Bit ADC Resolution; Nominal Temperature Resolution 0.03125°C (Varies Due to RTD Nonlinearity)
  • Total Accuracy Over All Operating Conditions: 0.5°C (0.05% of Full Scale) max
  • ±45V Input Protection
  • Fault Detection (Open RTD Element, RTD Shorted to Out-of-Range Voltage, or Short Across RTD Element)
  • Direct fifth-order linearization for best accuracy

4 Wiring

picture of sensor pcb and box

Probe settings
number of wires jumpers configuration Probe connection
4 wires JP2 jumper on 1-2 FORCE+ IN+ IN- FORCE-
JP3 NC
JP4 NC
3 wires JP2 jumper on 2-3 FORCE+ IN+ IN-
JP3 NC
JP4 jumper ON
2 wires JP2 jumper on 1-2 IN+ IN-
JP3 jumper ON
JP4 jumper ON


5 Magnetic Switch Protocol description

MSxxx Generic Magnetic Switch Protocol

6 Radio frames description

MSxxx Generic Application Protocol

6.1 Uplink data Frame format

The uplink payload contains multiple fields: <mask>: bit field on 1 byte indicating the presence of other fields. Bit 7 is always to 1 because the mask is never extended on next byte.

Some examples (in hexadecimal): ...

6.2 Downlink Frame format

The sensor configuration contains the following fields:

It is possible to change the sensor configuration using the Nemeus downlink protocol. The downlink frame must be sent on the MS008 ??? LoRaWAN port (8).

The downlink frame has the following format:

<cmd>: 1 byte containing WRITE_CFG_CMD=0x02

Some examples in hexadecimal: ...


6.3 Power consumption

Please find below a tool to calculate power consumption vs number of measures and transmissions.

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