PRESSURE LEAK DETECTOR DLR-P ..
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Interior view of stainless-steel housing, weather-protected, with:
17
Overpressure pump
20
Three-way valve in the pressure line
21
Three-way valve in measuring line
62
Check valve
69
Buzzer
70
Overpressure valve (interstitial space)
75
Display board
76
Main board
102
Pressure sensor
140
Contact for serial data transfer
141
Keypad connection
144
Temperature switch, frost protection
Design and Function
75
62
69
76
102
21
140
141
144
17
70
20