SINGLE LEVEL PRESSURE SWITCHES

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SINGLE LEVEL PRESSURE SWITCHES

Product catalog summary

Construction Features

Body made of anodized aluminum (blue).
Base constructed from stainless steel.
Single level intervention with exchange contacts.

Application Field

Designed for gas pressure monitoring.

Technical Features

Environment:
- Protection class: IP 42.
- Operating temperature range: -25°C to +85°C.
- Storage temperature range: -40°C to +85°C.
- Salt mist resistance: 96 hours according to ASTM - B117.
- Compliant with RoHS and REACH standards.
Pressure:
- Calibration range varies by model: 0.5 to 5 bar.
- Operating pressure limits vary by nominal pressure (pn):
  - pn ≤ 1.5 bar: 3 bar
  - pn ≤ 3 bar: 6 bar
  - pn ≤ 5 bar: 10 bar
- Mechanical resistance limit: 30 bar.
- Admittable transient pressures for max 20 ms vary by pn.
Precision:
- Max hysteresis in switching: 0.35 bar.
- Tolerance of level intervention at 20°C varies by pn.
- Max levels derivation at -25°C and +70°C varies by pn.
- Max repeatability after tests varies by pn.
Pressure Sealing:
- Max admitted helium leakage: 2 x 10^-6 mbar x l/sec.
- Resistance in vacuum for 1 hour: 10^-3 bar.
Installation:
- Max admittable coupling torque: 50 Nm.

Electrical Features

Micro Switch Features:
- Micro switch model: Panasonic AVL3805613.
- Switch contact type: SPDT with gold-plated contacts.
- Contact resistance: 50 mΩ max.
- Minimum current/voltage: 1mA/5Vdc.
- Maximum current/voltage: 100mA/30Vdc.
- Electrical connection: Male Fast-on 0.110 inch.
Insulation:
- Various insulation tensions specified for different conditions.
Breaking Power:
- Guaranteed for 100 cycles at specified voltages and currents.

Identification

Rating features for different models are specified, with switching values intended for the pressure rising phase.

Circuit Diagram and Overall Dimensions

Details provided for different models with specific pressure ratings and tolerances.

Catalog excerpts

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

Open the catalog to page 1

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...

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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

Open the catalog to page 3

SINGLE LEVEL PRESSURE SWITCHES

SINGLE LEVEL PRESSURE SWITCHES

Catalog excerpts

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