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  • New item   -9.76€Passive room temperature sensor | PT1000 | IP30 | Sentera Controls | ROTSN-P1K0
    New item   -9.76€Passive room temperature sensor | PT1000 | IP30 | Sentera Controls | ROTSN-P1K0 1
    New item   -9.76€Passive room temperature sensor | PT1000 | IP30 | Sentera Controls | ROTSN-P1K0 2
    New item   -9.76€Passive room temperature sensor | PT1000 | IP30 | Sentera Controls | ROTSN-P1K0 3
    New item   -9.76€Passive room temperature sensor | PT1000 | IP30 | Sentera Controls | ROTSN-P1K0 4

    Passive room temperature sensor | PT1000 | IP30 | Sentera Controls | ROTSN-P1K0

    Code: ROTSN-P1K0
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  • Product description

    Passive room temperature sensor | PT1000 | IP30 | Sentera Controls | ROTSN-P1K0

    The ROTSN-P1K0 is a Sentera Controls passive room temperature sensor with a platinum PT1000 element. It is a resistive sensor with no power supply or electronics: its resistance (1000 Ω at 0 °C) increases linearly with temperature and is read by a controller, BMS or speed controller with a PT1000 input.

    Key idea:
    The simplest and most reliable way to deliver room temperature to the automation: a flat wall-mounted housing with covered terminals, no power supply, no configuration – just two wires and the display to the controller's PT1000 input.
    Sensing element
    PT1000 (1000 Ω at 0 °C)
    Accuracy class
    F0.3 (IEC 60751)
    Operating temperature
    -20…+60 °C
    Protection class
    IP30, wall-mounted

    Operating principle

    The ROTSN-P1K0 is mounted on the room wall with two Ø6 mm screws (hole spacing 104.5 mm). The sensor is connected to terminals T1 and T2, and the shield of the shielded cable (up to 1.5 mm²) is connected to the SH terminal and earthed only at the controller end, to reduce electromagnetic interference on longer runs.

    The sensor element is soldered to a printed circuit board in a plastic housing and measures the ambient air temperature. The resistance of the platinum PT1000 element (1000 Ω at 0 °C) rises with temperature according to the DIN / IEC 60751 characteristic; the controller passes a measuring current of 0.1–0.25 mA through the sensor and calculates the temperature from the voltage drop.

    Result – the controller or BMS receives the room temperature with F0.3 class accuracy (±0.30 °C at 0 °C … ±0.60 °C at 60 °C) with no power supply or settings. The sensor has no 0-10 VDC or Modbus output, so it suits only a controller with a PT1000 input; for Modbus systems choose the DTS-M sensor with the DTS-MB-BK-ASM wall bracket.

    Benefits ROTSN-P1K0?
    No power supply, settings or programming needed – a PT1000 sensor with accuracy class F0.3 and long-term stability (< ±0.04 %) has a long service life and is easy to replace.

    Technical specifications

    Product type Passive room temperature sensor (platinum resistance, RTD)
    Manufacturer / code Sentera Controls / ROTSN-P1K0
    Series ROTSN-P (PT100 / PT500 / PT1000)
    Sensing element PT1000, nominal resistance 1000 Ω at 0 °C
    Temperature coefficient Positive (resistance increases as temperature rises)
    Accuracy class F0.3 (DIN / IEC 60751); ±0.30 °C at 0 °C … ±0.60 °C at 60 °C
    Measuring current (DC) 0.1–0.25 mA
    Self-heating ≤ 0.7 K/mW
    Response time in water (t0.5 / t0.9) ≤ 0.3 s / ≤ 0.4 s
    Long-term stability Less than ±0.04 %
    Insulation resistance More than 10 MΩ
    Terminals T1, T2 – sensor; SH – cable shield
    Cable cross-section Up to 1.5 mm²
    Mounting 2 holes Ø6 mm, 104.5 mm apart
    Protection class IP30 (EN 60529)
    Operating environment -20…+60 °C, < 95 % rH non-condensing
    Dimensions (package, 1 pc.) 110 × 76 × 28 mm
    Weight 0.054 kg (net)
    Compliance LVD 2006/95/EC, DIN / IEC 60751, WEEE 2012/19/EU, RoHS 2011/65/EU

    Manufacturer documentation

    ✔ Recommended by Elektrotechnikos sprendimai

    Original manufacturer documentation – technical data, wiring diagrams and installation instructions.

    Main functions

    • Platinum PT1000 element – linear and standardized (IEC 60751) characteristic – no calibration needed.
    • Accuracy class F0.3 – ±0.30 °C at 0 °C, ±0.60 °C at 60 °C – sufficient for room climate control.
    • Long-term stability < ±0.04 % – readings do not drift even after several years.
    • Response time in air t0.9 ≤ 8.0 s – the controller quickly senses a change in room temperature.
    • Self-heating ≤ 0.7 K/mW – with a 0.1–0.25 mA measuring current, the sensor practically does not distort the readings.
    • Low-profile housing – does not clutter the interior, terminals are covered.
    • Shield terminal SH – easy to connect a shielded cable and reduce interference.
    • No power supply needed – no separate 24 V line to the sensor is needed.

    Where is it used?

    • Temperature measurement in offices and meeting rooms
    • School classrooms and lecture halls
    • Room heating and cooling control via a BMS
    • Ventilation unit controllers with a PT1000 input
    • Residential building heating controllers
    • Hotel rooms and other dry rooms
    • Replacing existing PT1000 room sensors during modernization

    On-demand operation

    For designers.
    The PT1000 element is less sensitive to lead resistance, so it suits longer runs from the room to the controller cabinet.
    For ventilation unit manufacturers.
    A room temperature sensor with a PT1000 element for the unit controller, with no additional 24 V power supply.
    For school and office renovation contractors.
    A low-profile enclosure with covered terminals suits public spaces and installs quickly.

    Practical application

    If the controller of a ventilation unit with a PT1000 input is in a cabinet far from the room it serves, then the ROTSN-P1K0 is connected with a shielded cable of up to 1.5 mm², and the 1000 Ω element reduces the effect of wire resistance on the readings.

    Application guide: how it is used in practice

    The ROTSN-P1K0 is used wherever the controller has a PT1000 input – only the location and what the controller controls change:

    Site What is connected Result Installer's note
    Office, meeting room ROTSN-P1K0 → BMS controller PT1000 input Heating / cooling is regulated according to the actual room temperature Install at a height of ~1.5 m, away from radiators and sunlight
    School classroom ROTSN-P1K0 → ventilation unit controller The supply air temperature is adjusted according to the room temperature Route the cable separately from 230 V lines
    Residential building ROTSN-P1K0 → heating controller with a PT1000 input Room temperature is maintained without overheating Ground the shield (SH) on the controller side only
    Modernisation of an old system The existing PT1000 sensor is replaced with ROTSN-P1K0 Same characteristic – no need to change the controller settings Check that the controller input is really PT1000

    How to choose a sensing element

    Controller input type Recommended model
    PT100 (100 Ω at 0 °C) ROTSN-P100 (PT100, room)
    PT500 (500 Ω at 0 °C) ROTSN-P500 (PT500, room)
    PT1000 (1000 Ω at 0 °C) ROTSN-P1K0 (PT1000, room) ← this model
    Rule: the sensing element must match the controller input type (PT100, PT500 or PT1000) – otherwise the readings will be wrong. For long lines PT1000 is less sensitive to lead resistance than PT100. Always use a shielded cable.
    When to choose another solution: for a duct – TUTSN series (PT500 / PT1000, 150 or 250 mm); with a cable or for immersion in a thermowell – FLTSN series (PT100 / PT500 / PT1000 / NTC); when Modbus RTU is needed – DTS-M (duct) or DTP-M (strap-on).

    Pros

    • No power supply or settings needed
    • Standard PT1000 element per IEC 60751
    • Accuracy class F0.3
    • Long-term stability < ±0.04 %
    • Low-profile housing, covered terminals
    • Shield terminal SH

    Cons / limitations

    • No 0-10 VDC or Modbus output – a controller with a PT1000 input is required; for a Modbus system choose DTS-M with the DTS-MB-BK-ASM bracket
    • No display, buttons or setting knob
    • IP30 – only for dry rooms without condensation
    • Operating range only -20…+60 °C

    Safety and installation notes

    • Installation and connection are to be carried out by a qualified installer.
    • Use a shielded cable and earth the shield on the controller side only.
    • Do not install near heat sources, direct sunlight or draughts – the readings will be distorted.
    • IP30 – do not use in damp rooms or where condensation forms.

    Quick selection guide

    PT1000
    Passive
    F0.3
    IP30
    Wall-mounted
    Suitable when you need:
    • to measure room temperature for a controller or BMS with a PT1000 input;
    • to replace an old passive sensor of the same type;
    • to install a simple sensor without a separate power supply.
    Check before use:
    • the controller input type (PT1000);
    • the cable length and whether it is shielded;
    • the installation location – whether there are no heat sources or condensate.
    Important reminder: The ROTSN-P1K0 has no active output – it works only together with a controller that has a PT1000 input.

    FAQ

    Does the sensor need a power supply?
    No, it is a passive resistive sensor, and the measuring current is supplied by the controller.
    Can it be connected to a 0-10 VDC input?
    No, a controller with a PT1000 input or a Modbus DTS-M sensor is required.
    What is the sensor accuracy?
    Accuracy class F0.3 ensures ±0.30 °C at 0 °C and ±0.60 °C at 60 °C.
    Which cable should I use?
    Use a shielded cable up to 1.5 mm² and connect the shield to SH and earth it at the controller end.
    Is the sensor suitable for a damp room?
    No, the protection class is IP30, so it is intended only for dry rooms without condensation.
    At what height should it be mounted?
    Mount at a height of about 1.5 m, away from radiators, direct sunlight and drafts.

    Passive room temperature sensor | PT1000 | IP30 | Sentera Controls | ROTSN-P1K0

    Sentera ROTSN-P1K0 – passive room temperature sensor with a PT1000 platinum element, accuracy class F0.3 and an IP30 wall-mounted housing, for controllers and BMS with a PT1000 input.

    Illustrative image may have been created using AI. The appearance of the product may differ slightly from the image shown. Please refer to the technical specification.

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