SILASpz control unit
Model I
A7-37S2-2111-510
Features
- Black box system
- Automatic calculation of the purge time
- WEB interface
- 3 x PT100/1000 inputs
- Modular design
- Separate purge gas input and output
Certification
IECEx BVS 19.0038X
BVS 19 ATEX E 015 X
Marking
ATEX:
II 3G Ex ec mc ic [ic pzc] IIC
T4 Gb II 3D Ex tc [ic pzc] IIIC
T95 °C, T130 °C Db
IECEx:
Ex ec mc ic [ic pzc] IIC T4 Gb
Ex tc [ic pzc] IIIC T95 °C, T130 °C Db
Guidelines/Norms
Directive 2014/30/EU
Directive 2014/34/EU
Ambient temperature
In storage
-20 °C to +60 °C
During operation
-25 °C to +60 °C/T4
-25 °C to +50 °C/T5
Description
The SILASpz Ex p control unit controls and monitors the pre-purge and operating phase of pressurised enclosure equipment protected in accordance with ignition protection type pz. Digital or proportional purge gas valves can be used as purge gas valves. The parameters can be set using the integrated WEB interface or the optionally available p operator panel. The SILASpz features two release relays; one which is energised and one which has floating contacts. Two signal relays with one changeover contact each are additionally available.
Three PT100/1000 inputs are available to monitor the temperature of the Ex p-protected equipment. Up to three switch values can be assigned to them. Model I comes complete with separate pressure measurement.
The following components are additionally required to set up a complete control system:
- Sensor boxpz 25 mbar
- Pressure monitor
- Purge gas valve, proportional or digital
- Valve fuse
- Pressure reducer
- There is the option to connect a p operator panel
Technical data *
| Protection class | IP 66 according to EN/IEC 60529 IP 64 according to EN/IEC 60079-0 |
| Material | V4A stainless steel |
| Weight | 5.8 kg |
*Refer to the documentation for more detailed information
Documentation
Data Sheet - SILASpz control unit
Declaration of Conformity - CE A1-37S2-7C0001
