Watson Smith Electronic I/P converter Type 140  EX14001PK4LN1

Watson Smith Electronic I/P converter Type 140 EX14001PK4LN1

The type 140 is a robust, explosion-proof pressure converter (I/P converter) with Triple Certification and IP66 & NEMA 4X weatherproofing and ExN Certification. This highly reliable current to pressure converter is ideal for operations in extreme conditions.

Current to pressure converter type 140

Specifications:

• 4-20mA (two wire); 4-12mA, 12-20mA field adjustable 

• Pressure ranges from 3-15 psi (0.2-1 bar) up to 3-60 psi.

• Weatherproof to IP66, NEMA 4X 

• Intrinsically Safe / Explosion Proof (Triple certification - triple agencies)

• Highly reliable 

ELECTRONIC CONVERTER CURRENT TO PRESSURE (I/P) TYPE 140 FAILSAFE

FEATURES

 Advanced electronic control

 ATEX certified

 Explosion proof and Intrinsically safe

 Complete Electronics Modularity For Ease of Maintenance

 Jack Socket for On-site Monitoring

 Fail-Safe (unit pressure falls to zero on signal failure)

 Field replaceable filter

GENERAL DESCRIPTION

The 140 proportional I/P converter uses advanced

closed loop solid-state electronic control to achieve

accurate, high resolution pressure control. It is

available in intrinsically safe and Type n versions and

its vibration immunity and IP66 weatherproof rating

make it ideal for field application.

Supply Pressure 1.2-10bar (18-150psig); minimum 3psi

above max output pressure

•Output Signal 0.2-1bar (3-15psig)

•Air Supply Oil free, dry air, min filtered to 50 microns;

Internal in-built air filter

•Flow Capacity > 300Nl/min (12scfm)

•Air Consumption < 2.5 Nl/min (0.025scfm) at 50% signal

•Instrument Accuracy mean <0.1%

•Independent Linearity mean <0.05% of span

•Hysteresis, Resolution mean <0.05% of span

& Deadband

•Temperature Effect Typically less than 0.035% span/ C

between -40C to +85C

•Supply Sensitivity Less than 0.1% of span over full

supply pressure range.

•Connections 1/4” NPT female standard (plus

integral 1/8” NPT gauge ports, 1/8”NPT

(exhaust baffle)

•Calibration Independent control of 0% and 100%

set points. Adjustable by potentiometers

up to 20% of output range. Unit is factory

calibrated to within 1% of span.

•Fail-Safe Signal falls to below 15mbar (0.2psig) in

< 2sec, when input signal fails.

•Tight Shut-off Control Potentiometer sets input signal failure

at 3.5mA.

•Operating Temperature -40C to +85C

•Weatherproofing IP66, Type 4X

•Vibration Output pressure changes less than 3% for

vibration amplitude 4mm 5-15Hz, 2g 15-

150Hz

•Electromagnetic Compliant with EC requirements EN

Compatibility 50081-2:1994(Emissions) and EN50082-

2:1995(Immunity)

•Material of Construction Aluminium and zinc diecasting with nitrile

diaphragms, black epoxy powder coating

standard

•Mass 2.07Kg

•Maintenance Modular Electronics and in-built filter

offered as field replaceable parts

•Mounting Position Integral bracket allows for surface or

50mm pipe mounting in any orientation.

Designed for mounting with 57-73mm

pitch U bolts.

Electrical Signal 4-20mA (two wire)

Terminal voltage <6.5V

•Min Operating Current >3.5mA

•Overload Protection 100mA max overload current

•Insulation Resistance >100MOhm at 850Vdc, electrical terminals

to case

•Connections 1/2” NPT or M20 via adapter; internal

terminal block with capacity up to 2.5mm2

cable

Common model numbers:

EX14001BJ4EE1, EX14001BJ4LE2, EX14001BK4EE1, EX14001BK4LE2, EX14001PK4EE1, EX14001PK4LE2, EX14001PK4LN1