120 Series Overview
Rugged, Explosion-proof Pressure, Vacuum, Differential Pressure and
Temperature Switches
As safety requirements become more stringent, the
determining factor in specifying an industrial pressure, differential pressure
and/or temperature switch rests upon that switch protecting equipment,
processes and personnel. Meeting hazardous location requirements through
worldwide approvals and certifications, UE’s 120 Series is the choice where
potentially explosive or highly corrosive atmospheres exist.
The 120 Series offers
a variety of pressure, vacuum, differential pressure and temperature ranges, as
well as process connections, wetted materials and sensor types. With a common
flexible platform, models can quickly be adapted at the factory for special
requirements, such as ranges, process connections and electrical ratings. Typical
industries using 120 Series switches include chemical, petrochemical, refinery,
oil and gas production and transmission, and pharmaceuticals.
Product
Overview
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Class 1, Divisions 1 & 2, Zone 1
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UL listed, cUL certified, ATEX flame-proof
& CE (LVD, PED) compliant; other worldwide hazardous location
approvals available
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Dual electrical conduit openings provide
mounting flexibility while terminal block provides ease of wiring
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SPDT, DPDT, or dual SPDT switch output of pressure sensor materials, including
welded stainless steel diaphragms and bellows
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Internal or external set-point adjustment
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Heat trace & freeze protection temperature
models
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Adjustable set-point ranges:
Pressure & Vacuum: 30 ”Hg Vac to 6000 psi
1 to 413,7 bar
Water Column: 300 “wc Vac to 250 “wc
-746,7 to 622,3 mbar
Differential Pressure: 0.2 “wcd to 500
psid
0,5 mbar to 34,5 bar
Temperature: -180 to 650 ºF
-117.8
to 343.3 ºC
Features
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Standard product approvals include cULus, ATEX
& IECEx
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Optional approvals for Russia, Ukraine and China
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Internal adjustment hex or external adjustment via calibrated dial(s) with tamper resistant cover
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Integral cover lock
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SPDT, DPDT or dual SPDT output
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Wide
variety of sensor materials
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Optional Hastelloy® and Monel® sensor material for corrosive media
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Wide
adjustable deadband models
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Flush
mount sensors
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Heat
tracing temperature models
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Most
models available for immediate delivery!