TECHNICAL SPECIFICATION Edition Date TECHNICAL SPECIFICATION FOR SINGLE LEVEL PRESSURE SWITCHES TYPE 5-1848-0 CONSTRUCTION FEATURES 1.1 BODY IN ANODIZED ALUMINIUM (BLUE) 1.2 BASIS IN STAINLESS STEEL 1.3 SINGLE LEVEL INTERVENTION WITH EXCHANGE CONTACTS APPLICATION FIELD 2.1 GAS PRESSURE MONITORING TECHNICAL FEATURES ENVIRONMENT PROTECTION CLASS OPERATING TEMPERATURE: STORAGE TEMPERATURE: SALT MIST RESISTANCE: ROHS AND REACH COMPLIANT CALIBRATION RANGE (according to model): OPERATING PRESSURE LIMIT FOR pn ≤ 1,5 bar OPERATING PRESSURE LIMIT FOR pn ≤ 3 bar OPERATING PRESSURE LIMIT FOR pn ≤ 5 bar MECHANICAL RESISTENCE LIMIT: ADMITTABLE TRANSIENT (MAX 20 ms) x pn ≤ 1,5 bar: ADMITTABLE TRANSIENT (MAX 20 ms) x pn ≤ 3 bar: ADMITTABLE TRANSIENT (MAX 20 ms) x pn ≤ 5 bar: MAX HYSTERESIS IN SWITCHING BETWEEN RISE AND DESCENT: TOLERANCE OF LEVEL INTERVENTION AT 20°C FOR Pn ≤ 1,5: TOLERANCE OF LEVEL INTERVENTION AT 20°C FOR Pn ≤ 3: TOLERANCE OF LEVEL INTERVENTION AT 20°C FOR Pn ≤ 5: MAX LEVELS DERIVATION AT -25°C FOR Pn ≤ 1,5: IP 42 -25°C ÷ +85°C -40°C ÷ +85°C 96 h in salt mist according to ASTM - B117 PRESSURE (all values are expressed in relative bar) 0,5 ÷ 5 bar 3 bar 6 bar 10 bar 30 bar 5 bar x 20 cycles 8 bar x 20 cycles 12 bar x 20 cycles PRECISION (all values are expressed in relative bar) Modified code extensions due to pressure range expantion. EDITION DESCRIPTION

TECHNICAL SPECIFICATION MAX LEVELS DERIVATION AT -25°C FOR Pn ≤ 3: MAX LEVELS DERIVATION AT -25°C FOR Pn ≤ 5: MAX LEVELS DERIVATION AT +70°C FOR Pn ≤ 1,5: MAX LEVELS DERIVATION AT +70°C FOR Pn ≤ 3: MAX LEVELS DERIVATION AT +70°C FOR Pn ≤ 5: MAX REPEATIBILITY AFTER ONE ORE MORE TESTS FOR Pn ≤ 1,5: MAX REPEATIBILITY AFTER ONE ORE MORE TESTS FOR Pn ≤ 3: MAX REPEATIBILITY AFTER ONE ORE MORE TESTS FOR Pn ≤ 5: Edition Date 3.4 PRESSURE SEALING (all values are expressed in relative bar) 3.4.1 MAX ADMITTED HELIUM LEAKAGE: 2 x 10Λ-6 mbar x l/sec RESISTANCE IN VACUUM FOR 1 HOUR: 3.4.2 10Λ-3 bar 3.5 INSTALLATION...

TECHNICAL SPECIFICATION Edition Date IDENTIFICATION 5.1 THE SCHEME BELOW SHOWS THE RATING FEATURES OF EVERY DIFFERENT MODEL THE SWITCHING VALUES MUST BE INTENDED IN THE PRESSURE RISING PHASE CIRCUIT DIAGRAM OVERALL DIMENSIONS