
APEXpx control unit
Model II

07-37A2-2211/.520
Features
- Black box system
- Automatic calculation of the purge time
- WEB interface
- 3 x PT100/1000 inputs
- Modular design
- Safety-related control system
- Separate purge gas input and output
Marking
ATEX: II 2(1)G Ex eb mb ib [ib pxb] [ia Ga] IIC
T5, T4 Gb
III 2(1)D Ex tb [ib pxb] [ia Da] IIIC
T95 °C, T130 °C Db
IECEx:
Ex eb mb ib [ib pxb] [ia Ga] IIC
T5, T4 Gb
Ex tb [ib pxb] [ia Da] 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 APEXpx Ex p control unit controls and monitors the pre-purge and operating phase of pressurised enclosure equipment protected in accordance with ignition protection type px. 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 APEXpx 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 II comes complete with integrated pressure measurement. The following components are additionally required to set up a complete control system:
- 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 | 6.8 kg |
*Refer to the documentation for more detailed information