Temperature and Humidity Sensors

The Next Generation Saturn and Saturn Zen wall plates have integrated temperature and relative humidity sensors.

Like other C-Bus sensors, the measured values are broadcast on the Measurement Application. The temperature and humidity measurements can be independently configured to broadcast at regular intervals and/or upon a change of reading.

Alarms

In addition to broadcasting on the Measurement Application,, the Next Generation Saturn and Saturn Zen wall plates also have an Alarm feature.

Alarms are provided for both high and low conditions for both temperature and humidity. Alarms can be set to turn on Lighting Groups when the temperature or humidity crosses the configurable alarm threshold values.

Each of these high/low/temperature/humidity alarms can be enabled or disabled per profile.

NOTE: Once an alarm set threshold has been crossed and the alarm group has been switched on, disabling that alarm event with a Profile change will still allow the alarm group to be switched off when the alarm clear threshold is crossed.

Installation Location

Like all temperature sensors, temperature measurements (and therefore also relative humidity values) are affected by local sources of heat and/or airflow. For example, exposure to the temperature in the wall cavity in which the unit is mounted, or direct airflow from a nearby air-conditioning vent.

If installed in a wall cavity where the temperature is expected to be significantly different to that of the room to be monitored, the influence of the temperature from the wall cavity on the measurement can be minimized by installing insulation behind the unit.

IMPORTANT: Consider these factors into account when setting the Temperature Offset.

Setting the Temperature Offset

In order to achieve accurate temperature and relative humidity* readings, the temperature offset must be set correctly.

To do this, the unit must be installed in its final mounting location and left powered for at least 1 hour in order for the temperature to stabilize.

The temperature of the environment must also be stable, as the reading from the sensor can lag changes in the environment by up to 10 minutes, depending on airflow.

Take a measurement of the temperature near the unit with another measuring instrument of trusted accuracy. If this is the desired reading, then use this value in the installation software to calculate and set the temperature offset required to make the reported reading match desired reading.

*Relative humidity is a measurement of the amount of moisture in the air, relative to the maximum possible amount of moisture that the air can hold at the current temperature. Accurate relative humidity readings therefore require accurate adjustment of the temperature offset.