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TEMP V4 IP68 Sigfox RC1 - Guide utilisateur / User guide version V3.1.1
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The product will send the frame when a threshold is overpassed but also when temperature comes back to normal (cf status alarm).
Explication of the thresholds and their hysteresis:
The settings associated with this mode of operation are:
• Sampling period (register 321).
• The activation of the probes (register 324).
• Alarm configuration of the probe 1 (register 330) and probe 2 (register 340).
• High threshold of the probe 1 (register 331) and probe 2 (register 341).
• Hysteresis for the high threshold of the probe 1 (register 332) and probe 2 (register 342).
• Low threshold of the probe 1 (register 333) and probe 2 (register 343).
• Hysteresis for the low threshold of the probe 1 (register 334) and probe 2 (register 344).
Example :
Register Encoding
Value
Result
S301
Decimal
0
Alarm mode
S321
Decimal
1800
A sample of the temperature every hour
S324
Decimal
3
The 2 probes are activated
S330
Decimal
3
An alarm is activated on high and low threshold on the probe 1
S331
Decimal
700
High threshold is 70°C
S332
Decimal
50
Hysteresis of the high threshold is 5°C, so the come back to normal is at 65°C
S333
Decimal
100
Low threshold is 10°C
S334
Decimal
20
Hysteresis of the low threshold is 2°C, so the come back to normal is at 12°C
S340
Decimal
2
An alarm is activated on high threshold only on probe 2
S341
Decimal
235
High threshold is 23.5°C
S342
Decimal
35
Hysteresis of the high threshold is 3.5°C, so the come back to normal is at 20°C
S343
Decimal
0
No low threshold determined
S344
Decimal
0
No low threshold determined
In this example:
• The product measure the temperature on the 2 probes every hour
• On probe 1, there is a high alert at 70°C with a come back to normal at 65°C and a low alert at 10°C with a come back to normal at 12°C
High threshold
Low threshold
High threshold - high threshold hysteresis
Low thr low threshold hysteresis
Sensor value
High alarm enabling
High alarm disabling
Low alarm enabling
Low alarm disabling
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