Gas measuring system ZM51

Intrinsically safe data transmission system ZM51 for the data transmission of methane, carbon monoxide, air velocity and dust concentration.

The transmission of measuring data to the computer on the surface is continued even in case of a power shutdown

• Modular system with digital / analogue modules
• Data bus via copper cable (twisted pairs) or fibre optic rings
• Modems 1.2 kBd, 4.8 kBd, 19.2 kBd
• Distances up to 20, 14, 8.5 km (Cu-PE isolation)
• Low power consumption of outstations
• Easy to configure outstations
• Monitoring of digital inputs
• Cyclic check with analogue reference value
• UPS for outstations and sensors
• Separate local fieldbus for power shutdown
• Redundant power shutdown stations
• Output relays for power shutdown 
• Calibration commands from surface

components and short info

	Designation: Union catalog Type: ZM51 Type of protection: I M2/M1 SYST EEX ib / ia I
	Designation: Central module Type: Z51-ZM22 Type of protection: I M1 Ex ia I Ma
	Designation: Display and control unit Type: Z51-AB22 Type of protection: I M1 Ex ia I Ma
	Designation: Profibus controller Type: Z51-PBC01 Type of protection: I M1 Ex ia I
	Designation: Profibus modem Type: PBM01 Type of protection: I M2 Ex ia I Mb
	Designation: 12V / 5V DC-DC converter Type: Z51-GW20 Type of protection: I M2 Ex ia I Mb
	Designation: Analog input unit (8-bit res.) Type: Z51-AE251 Type of protection: I M1 Ex ia I
	Designation: Bus connector Type: Z51-BV11 Type of protection: -

end faq