Instructions for the humidity sensor
The humidity sensor measures and monitors the relative humidity (RH) of the air. This sensor is equipped with an SNMP OID and supports a measurement range of 0 to 100 percent relative humidity. The relative humidity measurement is performed in real time. The accuracy of this sensor – housed within the sensor casing – is +/- 5% relative humidity (RH). This sensor, manufactured in the EU, is factory calibrated. If desired, it can be fine-tuned using a calibrated hygrometer.
The sensor is supported by all Ethernet-based measurement and monitoring devices from Didactum. Even discontinued predecessor models can be equipped with this humidity sensor.
The humidity sensor package includes the following components:
- 1 x labeled IP humidity sensor with RJ11/RJ12 connector
- 1 x 2-meter sensor cable
- 1 x Phillips head screw
- 1 x double-sided adhesive tape
Choosing a suitable installation location
The humidity sensor is mounted on the ceiling or wall of the room being monitored. Use the included screw or, alternatively, the double-sided mounting tape for attachment. In rooms with significant dust levels, the sensor's opening should face downwards. Avoid mounting the sensor in the immediate vicinity of a heater, radiator, hot water pipe, etc. The sensor should also not be exposed to direct sunlight or installed near heat-generating lighting.
When mounting the sensor in a 19-inch rack or server cabinet, ensure that it is not mounted near heat-generating (server) power supplies. This could affect the relative humidity (RH) readings.
Connecting the sensor to the IP-based measurement and monitoring system
After mounting the humidity sensor, simply connect it using the included sensor cable. Plug one end of the cable into the RJ11/RJ12 port on the sensor. Plug the other end into a free sensor port on your IP-based measurement and monitoring device. With the Auto Sensing function, the humidity sensor, which is equipped with an SNMP OID, will then be automatically detected by the IP device and displayed in the web interface.
Technical Note:
The humidity sensor can be located up to 50 meters away from the IP-based measurement and monitoring device. Please use only high-quality RJ11/RJ12 patch cables.
Assign a custom name (e.g., "Humidity Sensor Pharma Warehouse Berlin").
Next, define the individual threshold and alarm values for the humidity of the ambient air.
This is done using the mouse cursor or by directly entering the desired threshold values.
The SNMP OID of the humidity sensor is displayed under ID.
The current status and the real-time measured value are also displayed.
After configuring the sensor, click "Apply."
Configuration of the humidity sensor in the IP-based measuring and monitoring device
After the humidity sensor has been connected, we log in to the web-based measuring and monitoring device using the web browser of our smartphone, tablet, PC or laptop.
Automatic calculation of the dew point
If you have connected the precise temperature sensor to your Ethernet-based measuring and monitoring device, the dew point will be calculated automatically upon request.
To do this, please click on the "+" symbol in the upper left corner of the web interface and simply add the "Dew Point Calculation" element. Here you select the temperature and humidity sensors required for dew point calculation. You can also set individual threshold and warning values.
We then name the rule "Alarm for suboptimal humidity in the Berlin pharmaceutical warehouse."
Notification and alert in case of suboptimal humidity
Should the relative humidity (RH) in the monitored area become critical, the responsible personnel will receive a proactive notification via email, SMS*, or SNMP trap to the building or network monitoring software.
Upon request, an impending static discharge or the onset of condensation can also be reported via an optional alarm siren with integrated strobe light. All events are stored in the event log of the Didactum measurement and monitoring system.
Humidity Sensor
