NIVELCO EasyTREK SCD-31 4 Series, Installation And Programming Manual, Page: 7 / 32

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2.2. Special 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
15 m (50 ft) 30 m (100 ft) 60 m (200 ft)
Minimum measuring distance X
m
0.6 m (2 ft) 0.6 m (2 ft) 1 m (3.3 ft)
Ultrasound frequency 40 kHz 30 kHz 15 kHz
Weight

3.5 kg (7.7 lb)

3.5 kg (7.7 lb)

6.5 kg (14.33 lb)
2.3. Ex information
2.3.1. ATEX certificate No.: BKI16ATEX0020X/1
Type SCD–3  –8 Ex
Ex marking (ATEX)
II 1 D Ex ma ta IIIC T85°C…T130°C Da
Transducer material Closed cell PVC foam sensor face, Aluminum transducer housing and fitting
Process temperature –30…+60 °C ( − 22…+140 °F)
Max. surface temperature +130 °C (266 °F)
Output
Analog
4…20 mA, R
tmax
= 600 Ω , galvanic isolation, protection against surge transients
If no echo: continuous 3.6 mA or 22 mA (selectable with programming)
Relay Electronic switch: SPST 48 V AC 50 V DC / 1 A
Digital communication HART
®
standard on the current output
2.3.2. EACEx certificate No.:
RU C-HU. IM43.B.01471
Type SCD–3

–8 Ex
Ex marking (EACEx) Ex ma ta IIIC T85°C…T130°C Da
Transducer material Closed cell PVC foam sensor face, Aluminum transducer housing and fitting
Process temperature –30…+60 °C ( − 22…+140 °F)
Max. surface temperature +130 °C (266 °F)
Output
Analog
4…20 mA, R
tmax
= 600 Ω , galvanic isolation, protection against surge transients
If no echo: continuous 3.6 mA or 22 mA (selectable with programming)
Relay Electronic switch: SPST 48 V AC 50 V DC / 1 A
Digital communication HART
®
standard on the current output
2.4. Accessories
- Installation and Programming Manual,
- Warranty Card,
A
CCESSORIES
(S
OLD SEPARATELY
)
- EU Declaration of Conformity - Split flange (order code: SFA – 3  5)