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OPP-SOR® CO warning devices

for car parks and tunnels (bus technology)

System description for TGÜ-BM 3.6
The TGÜ-BM 3.6 is a bus-capable measurement and control the sensor electronics. The measured data are corrected for
system for monitoring air quality in underground garages and temperature, rescaled and evaluated based on the set averaging
other enclosed spaces in which combustion engine vehicles are time. Exceedances of set threshold values trigger control commands
operated for toxic concentrations of carbon monoxide, via relay to blowers, warning signs, horns, device malfunction alarms
nitric oxides or propane. (GMS) and the building management system (GLT).
The TGÜ-BM 3.6 allows different types of gas sensors to be used A total of 4 variable threshold values can be set independently
simultaneously and can manage up to 240 sensors. Four alarm of each other based on averaging time and hysteresis.
zones with up to 60 sensors each are integrated into the central Alarm thresholds can be tested by alarm simulation using
control unit. If larger numbers are required, it is necessary to add an inbuilt virtual sensor.
a further central control unit. The TGÜ-BM 3.6 can be parameterized via an interactive web
The sensors are connected to the TGÜ-BM 3.6 by 4 lines: 2 for the interface. For this purpose the device needs to be connected to an
power supply and 2 for data transfer. Communication between TCP / IP network via the integrated Ethernet interface. Access to the
the central control unit and the gas sensors is performed web interface is password-protected to prevent misuse.
digitally via a bus system. The control unit samples the gas The connection to the building management system can be
sensors cyclically and stores the instantaneous values for further established via Modbus.
processing. In this way the bus and sensors are also monitored Gas sensor calibration is performed locally for each gas sensor using GLT
themselves, and any malfunction is detected and reported. a hand-held device. The supply voltage is 230 V AC, and connection
The measurement signal of the gas sensors is digitalized in to an uninterruptible power supply (24 V DC) is required.
monitoring/data logging
Typ Item no. ADG Euro / pc.
OPP-SOR® Monitoring device for underground car parks TGÜ-BM 3.6 104424 33 2,103.20 Ethernet/LAN
for up to 240 OPP-SOR® gas sensors as stated in the system power supply
description. Supply voltage 230 V AC / 50 – 60 Hz or 24 V DC. 230 V AC
4 alarm zones integrated. Max. 60 gas sensors per zone. 4 Alarm zone 1 zone 2 zone 3 zone 4 24 V DC
switching points with average or actual value setting.
1 collective failure output with floating change-over contacts. GMF gas sensor ... ... ...
7 switching relay outputs for ventilators 1 + 2 + 3, signal horn, BMS
warning sign, device malfunction and BMS. 4 digital control inputs. relay
TFT color LCD display with language selection for operating, alarm fault integrated
und error messages as well as for indication of sampling point relay time switch
information such as gas type and concentration value. 8-key
operation on device.
Calculation of averages, system clock for data recording
functionality, self-monitoring, bus monitoring, data interface LED warning sign
RS485, Modbus. Ethernet interface for connection to TCP/ IP-based
networks. Modbus interface for connection to the BMS. Plastic
on-wall housing with cover.
horn
Protection class: IP 54 option
Dimensions: 340 x 230 x 112 mm (W x H x T) blower 1
Strain relief: 17x M16, 2x M20 and an M20 divisible
screw connection blower 2
Integrated time switch for cyclic ventilation & optional humidity
outdoor
indoor
monitoring. This makes it possible to monitor underground humidity humidity blower 3
garages with even greater energy efficiency and additionally Option
activate cyclic ventilation as required. The optional humidity
monitoring function prevents additional moisture from entering
the garage, providing an ideal protection against mold and
moisture damage. The hysteresis values can be adjusted, allowing
the device to be adapted to local conditions. One outside sensor
per system and one inside sensor per zone are required for
measuring temperature and humidity.
Data sheet no. 34120
TÜV certificate (downloadable from our website)

ADG = Article discount group

108 | Catalog 2025 | Gas warning devices To our online catalog: www.oprg.de/en/support/download-center