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Instruction and Safety Manual - SMART S
ENGLISH
29
1.3
Technical specifications
Table 1: The principal technical specifications of the detector SMART S
Sensing element
Pellistor, infrared, POP IR
Measuring range
0-100% LFL (From IEC 60079-20-1:2010)
Risoluzione
Analogue output : 0,025 mA
Display ±1% ±1 digit
Power supply
12-24 Vcc ±20%
Power consumption at 24Vdc
(without display)
Pellistor: 100 mA medium/160 mA maximum
NDIR: 110 mA medium / 160 mA maximum
Maximum power dissipated
≤
5.5 W (see detector label)
Microcontroller
Microcontroller 32 bit
Visual indications
Flickering LED
Uscita proporzionale
4-20 mA (default)
3 mA under scale condition
2 mA fault
22 mA overrange alarm
Maximum load resistance
300 Ω (t
ypical
200 Ω)
Serial output
RS485
Relays outputs with STS3REL board
(optional)
3 relays with tension free changeover contact
24V-1 A (non-latching relay)
Autozero procedure
Zero drift compensation
Digital filter
Variable average on the sampled values
Resolution
4096 points
Display (optional)
8 Alphanumerical symbols A LED o LCD
(minimum supply 10,5 V, minimum temperature -10°C)
Precision
0,5% of FS
(depending on sensor type)
Warmup time
120 s
