IMMERGAS 3.030992 Room Temperature Sensor Probe Kit Instruction Manual

IMMERGAS 3.030992 Room Temperature Sensor Probe Kit

Assembly

Opening the cover on the probe

Wall probe dimensions (mm)

Collegamento RS485 (esempio di collegamento con Magis Pro V2; per i dettagli di collegamento con altri dispositi-vi, vedere i relativi libretti istruzioni)/ RS485 Connections (example of connection with Magis Pro V2; for details of connection with other devices, see the relative instruction booklets)

Temperature error dependence

Connections

Key

RS485 serial connections
GND: Reference for RS485 serial
+: Rs485 signal (+)
-: Rs485 signal (-)
M(G0): power supply reference
+ (G): 12…24 Vac, 8…32 Vdc power supply

Connecting the probe to the controller with a supplementary transformer

The MODBUS room temperature and humidity sensor kit is a device used to detect the temperature and humidity of an environment. It is installed in conjunction with systems or products compatible with this type of device (see Product data sheets). As well to the wall-mounted room probes, industrial and duct versions are also available. This kit uses an RS485 serial connection. This brings significant savings in installation costs, a reduction in the connections, and the simplification of the connections, as a large number of probes can be connected to the same serial channel: a maximum of 32 units, within the limits defined by the controller used. The 8 dipswitches (DP1, 8) can be set to select the serial signal transmission mode and the address of the peripheral, as shown in

• Select address (DIP 1-5). The selection is made in 5 Bit binary code. Example: Off-Off-Off-Off-Off 128 / On-Off-On-Off-Off 128+5=133
• Modbus® supervisor protocol
• Serial speed (9600…19200 Bit/sec)
• The switch settings are contained in the instruction booklet of the device connected to the sensor kit (for example instruction booklet Magis Pro V2, Magis Combo V2, etc

Installation, assembly

To open the probe, proceed as shown while for assembly see

• the probe can be housed in a 3 gang switch box (built-in) using the 3.5×45 screws;
• for wall-mounting, use the plugs (S5 + 3.5×45 screws); on metal walls, use the M3x25 screws.

Warning: to avoid damaging the sensor and the connections during assembly and avoid earthing the shield of the sensor, use the spacers (Fig. 1); the sensor and the metal protector must not be removed for installation.
Note: pay attention to not removing the connector con

Connections

shows the diagrams for the connections. shows a typical wiring connection diagram with a generic controller. (See the relative instruction manual for the appliance) Warnings

• for the serial connection, use a shielded cable with twisted wires (2 wires + shield). The shield should be connected to the earth. The reference for the serial GND signals can be connected to the optically- isolated versions. For the non-isolated versions, this may not be connected if the same power supply is used for all the probes and this is connected to the serial reference on the controller. For further information, see the general probe manual.
• pay maximum care when installing the serial cables, which must not run near 230 or 400 Vac power cables, nor near contactor control cables. This will also reduce the risk of disturbance due to electromagnetic coupling. basic insulation is required from the mains power supply for the controller that the probe is connected to. To avoid errors due to the power supply current, an additional power supply from an external transformer can be used for the electrical connection of the power supply, use cables with a cross-section from 0.5 to 1.5mm2, for longer connections (> 10m), the maximum cross-section is recommended. for installations with a large number of probes (> 5 units), it is recommended to use just one suitably-rated transformer in the electrical panel to power all the probes. In this case, the secondary (G-G0) can be earthed (G0). One general transformer should not be used for the power supply to the entire panel, including the probes

Technical specifications

14…20mA, 12 Vdc power supply 9…13 mA, 24 Vdc power supply

– AC (VA): 35 to 49mA rms, 12 Vac 25 to 33mA rms, 24 Vac

0.8 VA max power consumption / probe to be featured

Operating range| Temperature -10 °C to +60 °C

Humidity         10…90 %rh

Precision| Temperature (*) +/-0.5°C at 25°C , +/-0.9°C -10T60 °C

Humidity (*) +/-3%rh at 25°C/50%rh, +/-5%rh -10T60 °C

Storage| -20T70 °C ; 10…90%rh non-condensing
Operating limits| -10T70 °C ; 10…90%rh non-condensing
Temperature sensor

Humidity sensor

| NTC 10Kohm at 25 °C 1%

Capacitive sensor

Output signal| RS485 serial

Transmission of temperature and humidity readings with protocol: Modbus® Temperature: Range of reference -30.0°C +70,0°C

Humidity: Range of reference 0.0%rh 99.9%rh

Terminal block| screw terminals for cables with cross-sections from 0.2 to 1.5 mm2
Case index of protection| IP30
Sensor index of protection| IP30
Temperature time constant| 300 s in still air
Temperature| 60 s in moving air (3m/s)
Time constant| 60 s in still air
Humidity| 20 s in moving air (3m/s)
Classification according to protection against electric

shock

| Can be integrated into class 1 and 2 appliances
PTI of the insulating materials| 250V
Period of stress across the insulating parts| long
Environmental pollution| normal
Category of resistance to heat and fire| category D (for the case and cover)
Category of immunity against voltage surges|

• Temperature/humidity: possible variations within ± 2.5 °C and ± 5% RH in the presence of strong electromagnetic fields (10Vm) Note: For the 0…1V, 0…10V, and 4…20 mA outputs the start and end scale values may differ from the AS* series analog probes

Disposal

Information for users on the correct handling of waste electrical and electronic equipment (WEEE).
In reference to European Union directive 2012/19/EU issued on 4 July 2012 and the related national legislation, please note that

1. WEEE cannot be disposed of as municipal waste and such waste must be collected and disposed of separately;
2. the public or private waste collection systems defined by local legislation must be used. In addition, the equipment can be returned to the distributor at the end of its working life when buying new equipment;
3. the equipment may contain hazardous substances: the improper use or incorrect disposal of such may have negative effects on human health and on the environment;
4. in the event of illegal disposal of electrical and electronic waste, the penalties are specified by local waste disposal legislation.

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