Rate Relay Sampling Operation - Siemens SITRANS RD300 Operating Instructions Manual

SIT SITRANS RD300RANS RD300

Rate Relay Sampling Operation

Set
Reset
Relay
LED
When the signal crosses the set point, the relay trips and the sample
time starts. After the sample time has elapsed, the relay resets. The
cycle repeats every time the set point is crossed, going up for high
alarms and going down for low alarms.
The sample time can be programmed between 0.1 and 5999.9 seconds.
Total Relay Sampling Operation
Total
300
200
100
Relay
LED
When the total reaches the preset, the relay trips and the sample time
starts. After the sample time has elapsed, the relay resets. The cycle
repeats every time the preset value is added to the total.
Page 46
Input
Sample Sample
Time Time
Preset = 100
Sample
Time
SITRANS RD300 – OPERATING INSTRUCTIONS
Sample
Time
Sample
Time
Sample
Time
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