Thermokon RDF-IR Ceiling Sensor Surface Temperature
Datasheet for the Thermokon RDF-IR, a ceiling flush-mounted sensor for surface temperature measurement.
Application
The RDF-IR is a ceiling flush-mounted sensor designed for surface temperature measurement in rooms, offices, and other workspaces. It utilizes an infrared measuring principle to determine the average temperature within a circular detection range of 80 ±5°. When two IR sensors are utilized, the system can provide the mean, minimum, or maximum temperature values, in addition to individual sensor readings. This functionality is configurable via the Thermokon USEapp.
Types Available
- Ceiling flush mount sensor temperature - active 0..10 V | 4..20mA: RDF-IR V L1500, RDF-IR A L1500
- Ceiling flush mount sensor temperature - active 2x 0..10 V | 2x 4..20 mA: RDF-IR VV L1500, RDF-IR AA L1500
- Ceiling flush mount sensor temperature - active 2x 0..10 V + Relay: RDF-IR VV L1500 Relay
Security Advice – Caution
Caution: Installation and assembly of electrical equipment should only be performed by authorized personnel. The product must be used only for its intended application. Unauthorized modifications are prohibited. Do not use the product with equipment that could endanger human health or life. Ensure power is disconnected before installation. Do not connect to live equipment.
Please comply with:
- Local laws, health & safety regulations, technical standards and regulations
- Condition of the device at the time of installation, to ensure safe installation
- This data sheet and installation manual
Notes on Disposal
The crossed-out wheelie bin symbol indicates that the product or removable batteries must not be disposed of with household or commercial waste. Within the EU, disposal must be separate and in accordance with national laws. Contact your supplier or Thermokon Sensortechnik GmbH for further information. More details are available at: www.thermokon.com.
Product Testing and Certification
Declaration of conformity: The declaration of conformity for the products is available on the Thermokon website: https://www.thermokon.de/direct/en-gb/categories/rdf-ir
Technical Data
| Measuring values | surface temperature |
|---|---|
| Output voltage | 1x/2x 0..10 V or 0..5 V (adjustable via jumper; live-zero configuration via Thermokon USEapp), min. load 10 kΩ |
| Output ampere (type-dependent) | 1x/2x 4..20 mA, max. load 500 Ω |
| Output switch contact (type-dependent) | Relay: 2x floating contact NO for 24 V ~ or 24 V = /3A |
| Power supply (type-dependent) | V | VV | Relay: 15..35 V = or 19..29 V ~ SELV |
| Power consumption | typ. 0.6 W (24 V =) | 1.5 VA (24 V ~) |
| Output signal range temperature (*Scaling analogue output) | 0..+50 °C (default setting); selectable from 4 temperature ranges: -40..+60 °C | 0..+50 °C | -20..+80 °C | -15..+35 °C |
| Operating temperature range | -20..+70 °C |
| *Max. permissible operating temperature | ±0.5 K (typ. at 21 °C within default measuring range); mounting height max. 7 m, > 7m ± 1.5 K |
| Accuracy Temperature | PIR (passive infrared), optical aperture angle (50% sensitivity): 80 ±5°; Emissivity = 1.0, other values on request |
| Sensor | Enclosure: USE-M, PC, pure white |
| Enclosure | IP30 according to EN 60529 |
| Protection | V(V) | A(A) |
| Cable entry (type-dependent) | Flextherm M20, for wire Ø=4.5..9 mm, removable | M25 with fourfold cable entry for wire with max. Ø=7 mm, removable |
| Connection electrical | removable plug-in terminal, max. 2.5 mm², sensor wire length=1.5 m (default), max. 10 m, plug RJ45 |
| Ambient condition | max. 85% rH short term condensation |
Configuration
Communication between the Thermokon Bluetooth dongle (micro-USB, Item No.: 668262) and the sensor is required. Commercial Bluetooth dongles are not compatible.
Application-specific reconfiguration of devices can be performed using the Thermokon USEapp. Configuration is possible when the device is powered.
The configuration app and its description are available in the Google Play Store or the Apple App Store.
Application Notice
The Bluetooth dongle snaps into the socket easily. When removing, fix the plug-in card (option PCB) to prevent it from being unintentionally pulled out. The ceiling flush-mounted sensor is installed in a 26 mm diameter hole.
Connection Plan
RDF-IR V | RDF-IR Dual VV
Wiring:
0..5 V / 0..10 V
Connections: AOU2, AOU1, GND, UB+
Notes: (temperature 2 | 0..10 V) optional, if sensor 2 connected; (temperature 1 | 0..10 V); (15..35 V = or 19..29 V ~)
RDF-IR A | RDF-IR Dual AA
Wiring:
0..5 V / 0..10 V
Connections: AOU2, AOU1, GND, UB+
Notes: (temperature 2 | 0..10 V) optional, if sensor 2 connected; (temperature 1 | 0..10 V); (15..35 V =)
Wiring:
4..20 mA
Connections: AOU1, AOU2, GND, UB
Notes: (temperature 2 | 4..20 mA) optional, if sensor 2 connected; (temperature 1 | 4..20 mA)
RDF-IR V Relay | RDF-IR Dual VV Relay
Wiring:
0..5 V / 0..10 V
Connections: AOU1, A012, A011, AOU2, GND, UB+
Notes: (temperature 2 | 0..10 V) optional, if sensor 2 connected; (temperature 1 | 0..10 V); (15..35 V = or 19..29 V ~)
Relay Connections:
Notes: (Relay 2 | NO); (Relay 1 | NO)
DIP Switch Configuration
DIP 1..3: Reserved
DIP 4 | 5 (Measuring range temperature – [SI / IMP]):
- OFF OFF: 0..+50 °C | +32..+122 °F
- OFF ON: -40..+60 °C | -40..+140 °F
- ON OFF: -20..+80 °C | 0..+176 °F
- ON ON: -40..+160 °C | -40..+320 °F
- ON ON (alternative): -15..+35 °C | +5..+95 °F
DIP 6 (System of units):
- OFF: SI
- ON: IMP (factory default)
Dimensions (MM)
Diagrams showing the dimensions of the RDF-IR sensor unit.
Main Unit Dimensions: Height: 65 mm, Width: 84 mm, Depth: 85 mm
Connection Housing Dimensions: Height: 71 mm, Width: 45 mm, Depth: 29 mm
Details: RJ45 port, sensor connections, mounting points.
Accessories (Included in Delivery)
- Mounting base (Item No. 631228)
- Mounting kit universal (Item No. 698511) including: Cover screw, screw cover, 2 Rawlplugs, 2 Screws (countersunk head), 2 Screws (rounded head)
Accessories (Optional)
- Bluetooth dongle (Item No. 668262)
- Cable entry M25 USE white, sealing insert 4x Ø=7 mm (4 pcs) (Item No. 641364)
