Ex p Control unit
SILAS
pz
Technical data
Rev. 0
A1-37S2-7D0001_pz_Manual_Exp-Control-Unit_20210923_0_en.docx
Page 83 of 88
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Technical data
22
Specifications
Product
SILAS
pz
Type
A7-37S2-2111/*520
EU type examination certificate
BVS 19 ATEX E 016 X
IECEx certification
IECEx BVS 19.0038X
EAC certification
ЕАЭС
RU
С
-DE.
АЖ
58.
В
.01809/21
ATEX Marking
II 3G Ex ec mc ic [ic pzc] IIC T5/T4 Gb
II 3D Ex tc [ic pzc] IIIC T130 °C / T95 °C Db
IECEx Marking
Ex ec mc ic [ic pzc] IIC T5/T4 Gb
Ex tc [ic pzc] IIIC T130 °C / T95 °C Db
EAC Marking
2Ex ic e mc [ic pz] [ia Ga] IIC T5 Gc X
2Ex ic e mc [ic pz] [ia Ga] IIC T4 Gb X
Ex tc [ic pz] IIIC T95 °C Dc X
Ex tc [ib pz] IIIC T130 °C Dc X
Operating temperature range
-25 °C to +60 °C @T4; -25 °C to +50 °C @T5
Storage and transport
-25 °C to +60 °C
Mains voltage DC (variant)
24 Vdc to 44 Vdc, +/- 10 %
Mains voltage AC (variant)
100 Vac to 230 Vac, +/- 10%
Power consumption electronics
0.5 A – 1.5 A
Maximum power consumption
15 W (incl. purging valve)
Enable relay K1 (SIL)
2 non-floating NO contacts,
230 Vac @ 5 A (AC1) or 24 Vdc @ 5 A (DC1)
Enable relay K2 (SIL)
Floating, 4 x NO,
230 Vac @ 3 A, 24 Vdc @ 3 A
Signal relays K3 and K4
Floating, 1x changeover contact,
230 Vac @ 1 A, 24 Vdc @ 1 A
Pressure range
0 … 25 mbar
Tolerance range
0 … 25 mbar = ±0.4 mbar
Purging time
Up to max. 2 hours
Purging gas valve
Digital or proportional
Connection terminal “Ex e”
0.08 … 2.5 mm² (28 …12 AWG)
With wire end ferrule
/ plastic collar
0.25 … 1.5 mm²
Connection terminal “Ex i”
0.20 … 2.0 mm² (20 …14 AWG)
With wire end ferrule
/ plastic collar
0.25 … 0.75 mm²
Enclosure material
Stainless steel V4A
Cable glands
9x M20 brass nickel-plated (clamping range: 4 - 12 mm)
1x M16 brass nickel-plated (clamping range: 3 - 9 mm)
IP degree of protection
IP 64 in accordance with IEC/EN 60079-0
IP 66 in accordance with IEC/EN 60529
Dimensions
250 (W) x 300 (H) x 130 (D) mm
Weight
10.5 kg