NIVELCO EasyTREK SCD-300 Series, Installation And Programming Manual

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2. TECHNICAL DATA
2.1. G
ENERAL DATA
Type EasyTREK SCD– 3
††
- 4
EasyTREK SCD– 3 †† - 8 Ex*
Housing material PP+ Aluminium Aluminium
Total beam angle (-3dB) 5°
Process temperature -22ºF (–30°C) ... + 140ºF (60°C) - 4ºF (–20°C) ... +140ºF (60°C)
Process pressure (absolute) 0,07 ... 0,11 MPa (0,7 … 1,1 bar) 10 PSI – 16 PSI
Power supply / consumption 11,4 … 40 V DC / 3,6 W, 11,4 … 28 V AC / 4 VA
Analogue 4 … 20 mA, R
tmax
= 600 ohm, Galvanic isolation; protection against surge transients
Digital communication HART Output
Relay SPST ; 48 V AC / 5A; A12
Accuracy ±
( 0,2% of the measured di 0,1% of the range)
Resolution 0.39” (10 mm)
Damping 3 … 1000 s
Electric connection
6 x 2,5 mm
2
∅
7,5 mm shielded cable ; standard length 9.8 ft (3 m) ; (to order up to 98 ft. (30m)
Electric protection Class III
Ingress protection IP65
Ex marking* n.a.
ATEX II 1D IP 65 T 130 °C
*Pending
2.2. S
PECIAL DATA
Type
SCD-34
†
- 4
SCD-34
†
- 8 Ex*
SCD-33
†
- 4
SCD-33
†
- 8 Ex*
SCD-31
†
- 4
SCD-31
†
- 8 Ex*
Maximum measuring distance** (X
M
) 49 ft. (15 m) 98 FT. (30 m) 197’ (60 m)
Minimum measuring distance** (X
m
) 1.6 ft. (0,5 m) 2 ft. (0,6 m) 3.28 FT. (1 m)
Ultrasound frequency 40 kHz 30 kHz 15 kHz
Sensor face PVC foam
Mass 7.7 lbs. (~ 3.5 kg) 7.7 lbs. (~ 3.5 kg) 14.0 lbs. (~ 6.5 kg)
*Under optimal circumstances of reflection and stabilised sensor temperature