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Watson Smith - Controlling Pressure Worldwide
Modular (I/P) Pilot Booster - Type 120

Features

 Low Cost OEM I/P
 Valve Positioner Pilot
 Compact and Rugged
 Specific Application Customising
 Wide Supply Range Available

General Description

The 120 Pilot Booster I/P converter uses proven
moving coil and flapper/nozzle technology, with a
built in flow regulator to minimize supply pressure
effects. Available in a variety of packages including
Explosion Proof enclosures for incorporation into
OEM products.

MODULAR (I/P) PILOT BOOSTER TYPE 120

Technical Data
Pneumatic
*Output Pressure 0.2-1bar (3-15psig) ;
*Air Supply Oil free, dry air, filtered to <5 microns;
1.4-10 bar (20-150 psig)
*Flow Capacity <1.5nl/min
*Air Consumption <1.5 nl/min typical
*Response Time </=650msecs from 10 to 90% or
</=350ms from 90 to 10% of output pressure into a 4.5cc load)
*Linearity +/-0.5% of span
*Hysteresis +/-0.3% of span
*Temperature Effect Typically less than 0.2% span/degC between -40°C to +85°C
*Supply Sensitivity Less than+/- 0.15% of span for supply pressure change
*Connections customised to suit customer requirements
Physical
*Operating Temperature -40°C to +85°C
*Weatherproofing IP20
*Vibration Output pressure changes less than 2% for 2g sine 20-100Hz,
*Electromagnetic Compatibility Compliant with EC requirements EN
50081-2:1994(Emissions) and EN50082-2:1995(Immunity)
*Material of Construction Zinc diecasting with nitrile diaphragms, customer specific enclosures available
*Mounting Position Any, to be specified by customer
Electrical
*Electrical Signal 4-20mA (two wire);
*Loop Resistance 230Ohm
*Failure Mode Signal falls to below 15mbar (0.2psig) in <
2sec, when input signal fails
*Insulation Resistance >100MOhm at 850Vdc, electrical terminals to case
*Connections Clamping screw connector terminals or flying leads to customer requirements.



Ordering Information
Options to special order:
Standard 1/8” ported base
Alternative pressure ranges
Optional Enclosures
Orientation and Application Specific Calibration set-up

 

PDF

TYPE 120 Brochure

TYPE 120 Manual




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Watson Smith

Electronic I/P Converters

421 Failsafe
422 Failfreeze
423 Failfreeze
425 Failsafe
120 Modular I/P Pilot Booster
122 Modular I/P Pilot Booster
122E Explosion Proof

Electro Mechanical I/P and E/P Converters

100X/101X Electro-Mechanical I/P and E/P Converters
140 Failsafe Electronic Converter (I/P)
440 Multi-function Electro-Pneumatic Converter
443 Rugged Electronic Pressure Converter

Pressure Regulators

R27 Manostat Manually/Mechanically Operated
R27 Auto/Manual Loading Stations

Pressure Control Valves

VP12 Miniature
VP50 3-Way
VP50S 3-Way
VP51 3-Way Programmable

Other Products

Air Preparation Accessories
300D Portable Precision Pressure Meter
FRI30 Flow Controller

Obsolete

68 P/I Converter

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Keison International Ltd. trading as:
Keison Products, VoIPon Solutions & 4Gon
keison VoIPon Solutions 4Gon