Output channels

Additional explanation on "Digital" mode

Example to explain the filter time in conjunction with the Ext. warmup time

Basic setting		Record interval	5min.
		Measurement cycle	1min.
Output channels		Ext. warmup time	1sec.
Measurement channels ->Config.		Filter time	500ms
Output on the device		Sensor supply

Explanation: The sensor supply is always activated 1sec before expiry of the measurement cycle. The filter time starts 500ms before expiry of the measurement cycle, which ensures that a valid value is available at the time of a measurement. However, this also means that the filter time must be taken into consideration when selecting the Ext. warmup time. In the current example, the sensor connected to the input must at the latest supply stable values 500ms following activation of the sensor supply. Otherwise, invalid values would be taken into consideration while averaging during the filter time resulting in the measurement value being distorted.

Example for explaining the release of the setpoint at the output via the trigger (output in "digital" mode)

Basic settings		Measurement cycle	1min.
Measurement channels -> Trigger		OS	Selected
		Threshold	Greater or equal 100
		Hyst %	5
Output channels		Mode	Digital
		Invert	Off
		Setpoint	On

Trigger not active		Green line
Trigger active		Red line
Output on the device		Sensor supply

Initial situation:One of the measurement channels should be used to determine the switching state at the output channel depending on the measurement value using the trigger. If one of the checkboxes "OS" (switchable sensor supply VOUT), "O3" (switchable 3,3 V supply VEXT) or "OD" (isolated switch contact) in the "Trigger" tab of the "Measurement channels" configuration section (see Measurement channels) is selected for one of the measurement channels, the output of the setpoint for the corresponding output channel is set to "off (Low)".

Explanation: The output on the device is set to "off (Low)" up to the time of 2, as the measurement value on the measurement channel is below the trigger level. The trigger is active from the time of 2, which sets the ouput to "on (High)". At the time of 3, the output channel is ultimately set to "off (Low)" again as the measurement value falls below the "Level - hyst" value (100-5=95).

Additional specification: If one of the checkboxes ("OS", "O3" or "OD") is selcected, the "setpoint" entered via the interface is ignored for the corresponding output channel. However, the parameter "invert" is taken into account. If "invert" is active for the output channel, the switching states at the output are exactly reversed compared to the example above (i.e. the output channel is set to "on (High)" with inactive trigger). For the ouput channel "switchable sensor supply (VOUT)", the parameter "Voltage" (i.e. the selection of the output voltage) is also considered.

Example for explaining the release of the setpoint at the output via the trigger (output in "Freq" or "Pulse" mode)

Basic settings		Measurement cycle	1 min.
Measurement channels -> Trigger		OD	Selected
		Threshold	Greater or equal 100
		Hyst %	5
Output channels		Mode	Freq
		Factor	5
		Setpoint	10

Trigger not active		Green line
Trigger active		Red line
Output on the device		Isolated switch contact

Initial situation: To begin with, the output channel "isolated switch contact (NO, CC)" is configured so that the desired frequency is output at the isolated switch contact of the device. For this purpose, the mode "Freq" is selected and the frequency is defined via the parameters "Factor" and "Setpoint" (the setpoint multiplied by the factor gives the frequency in Hertz). Subsequently, one of the measurement channels is to be used to release the frequency output depending on the measurement value using the triggers. If the "OD" (isolated switch contact) checkbox is selected in the "Trigger" tab of the "Measurement channels" configuration section (see Measurement channels) for one of the measurement channels, the output of the frequency for the isolated switch contact is blocked at the time of the next measurement, provided the trigger for this measurement channel is not active. The switch contact is open and remains in this state.

Explanation: The isolated switch contact is inactive up to the time of 2, as the measurement value on the measurement channel is below the trigger level. The trigger is active from the time of 2, which releases the ouput of the frequency at the output. The switch contact is continuously opened and closed at the set frequency. At time 3, the frequency output is ultimately disabled again as the measurement value falls below the "Threshold - Hyst" value (100-5=95). The switch contact is open and remains in this state.

Additional specification: If the "isolated switch contact (NO, CC)" output channel is operated in "Pulse" mode, the behaviour is similar to that described above. In this case, the "Factor" and "Setpoint" parameters are used to specify how many pulses per minute are to be output. Between times 2 and 3, instead of a frequency pulses are output via opening and closing the switch contact in this mode.