Gas Connections / Safety Features; Measuring-Point Switch (Option) - PRONOVA SSM 6000 User Manual

SSM 6000
2.2.7

Gas connections / safety features

All gas connections are located on the underside of the analyzer. The connections are clearly marked and may not be exchanged.
The gas-carrying pipes are connected to the device by means of clamping-ring screw connections.
The following connections must be made:
The delivery includes 20 meters of PVC hose (an additional 10m per measuring point with the measuring-point switch option) and
the required connections.
In order to protect the biogas plant against flashback, a safety unit is installed at the measuring-gas input of the analyzer which
prevents flashback into the gas-carrying system of the plant in the case of pipe leakage.
Two different safety unit versions are currently in use.
Version 1 Safety unit E 460-3 according to EN 730-1
Version 2 F 510 detonation protection according to EN 12874
The device is at present fitted with the F 510 detonation protection system according t EN 12874 / PTB 02 ATEX 4012X made of
stainless steel. The manufacturer's conformity declarations and test certificates for the safety and protection equipment are shown in
the appendix to this manual.
2.2.8

Measuring-point switch (option)

Analyzer version "A"
This option is implemented by a second measuring-gas input with a detonation protection unit and a 3/2-way solenoid valve for
switching between the measuring points.
The valve is controlled and the measuring point is thereby selected by the customer via a potential-free switching contact at the plug
connector, port 2 (pin 12/13) on the underside of the device.
Switching states of the valve:
The valve should be switched no later than five seconds after the start of a measurement. This switching status should remain
unchanged throughout the entire measuring process. The digital input "External start of measurement" can be used to measure the
two measuring points one after the other, irrespective of the measuring interval.
The current operating status of the analyzer can be detected by the controller via the digital "Measurement active" output. This status
output (transistor output 12VDC, 300mA max.) is active from the start until the end of a measurement.
Analyzer version "B"
Analyzer version "B" enables the implementation of up to four measuring-gas inlets with detonation protection and 3/2-way solenoid
valves for switching between the measuring points.
The solenoid valves are controlled and the measuring points selected by the SSM 6000. A measuring process can be triggered
manually via the digital inputs at port 1 or the (optional) Profibus interface.
800-01.06.EN
- 1x Measuring gas in / 2 to 4x with the measuring-point switch option
- 3x Measuring gas out
- 1x Condensate out
Valve off (NO)
Valve on (NC)
SSM 6000 User Manual
(material: brass / installation outside)
(material: stainless steel / installation outside)
measuring point 1
measuring point 2
HARDWARE DESCRIPTION
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