M&C SP Series, Instruction Manual

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www.mc-techgroup.com SP2000, SP2300, SP2400 | 1.00.03 31

For sampling operation turn handle to mid position.

For blow back turn handle from mid to left positon up to stop.

For test gas feeding turn handle from mid to right position up to stop.

For measuring operation turn handle back to mid position.
16.3 OPTION BALL VALVE DRIVES
For external control of the probe internal ball valves there is the possibility to use a pneumatic drive with return
spring type
MS1 , MS3 (for 320 °C [608 °F]) or an electric drive EA .
16.3.1 OPTION PNEUMATIC DRIVE MS1 OR MS3 WHEN USING A 2/2-WAY BALL VALVE /VA
Ball valve open = measuring operation
Ball valve closed = e.g. changing filter element at process excess pressure or toxic sample gas or test gas feeding
with option check valve
/R without loss of test gas into the process.
Figure 13 Pneumatic drive for 2/2-way ball valve
When placing the order it shall be specified whether the ball valve should be
NC
, without control air closed, or
NO , without control air open and hence switched to measuring.
Standard =
NC