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  • Watson Smith Fail freeze I/P Converter Type 422 AC039X

Watson Smith Fail freeze I/P Converter Type 422 AC039X

2016-04-13 01:04:41

Description:

Watson Smith Fail freeze I/P Converter Type 422 AC039X; The Watson Smith current to pressure converter (I/P converter) Type 422 with its Fail freeze (fail in last position) feature is ideal for field applications. This unit is available with Intrinsically Safe certification.……

Watson Smith Fail freeze I/P Converter Type 422 AC039X, brand new, original in UK;

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Assortments

Description

Watson Smith Fail freeze I/P Converter Type 422 AC039X


The Watson Smith current to pressure converter (I/P converter) Type 422 with its Failfreeze (fail in last position) feature is ideal for field applications. This unit is available with Intrinsically Safe certification.

  ATEX I.S. I/P Converter Advanced electronic control Fail freeze operation (output pressure retained on power failure) Minimum vibration effects High accuracy Captured bleed as standard;


All electronic I/P converters have closed loop control, excellent vibration resistance, long term stability and can be mounted in any orientation.

4-20mA signal and a range of output variations.


 Electronic I/P Converters Type 422 (Watson Smith Failfreeze I/P Converter Type 422)

All electronic I/P converters have closed loop control, excellent vibration resistance, long term stability and can be mounted in any orientation. 4-20mA signal and a range of output variations.


Specifications:

  • 3-15psi, 3-120psi, 0.2-1bar, 0.2-8bar output options

  • High Flow - 280 l/min (10scfm)

  • Faifreeze drift rate < 2% setpoint/hour

  • IP65 rating

  • Type N or Intrinsically Safe options


Technical features Medium: Oil free, dry air, filtered to 5 μm Output pressure: 0,2 ... 1 bar 

Supply pressure: at least 0,7 bar above maximum required output pressure maximum 4 bar gauge 

Flow capacity: Up to 250 Nl/min Air consumption: √ 0,4 Nl/min 

Linearity: 0,5 % of span 

Hysteresis: Typically  0,5% of span 

Vibration effect: 1 % of span for vibration level up to 4 mm, 5 ... 15 Hz, 3g 15 ... 500 Hz in any orientation. 


Response time: < 6 sec 10 ... 90% into a 0,5 l volume < 6 sec 90 ... 10% into a 0,5 l volume 

Temperature sensitivity: Typically < 0,1 % span/°C between -10°C and +60° 

Supply sensitivity: Typically < 0,5% of span for full supply pressure range 

Port sizes: Main ports: 1/4 NPT/G1/4 female Gauge ports: 1/4 NPT/G1/4 female Captured bleed: 1/8 NPT female I.P. 

Rating: IP65 with piped exhaust


EMC Compatibility: Compliant and CE marked in accordance with the EC Directive 2004/108/EC tested to BS EN 61000-6-2:2005 BS EN 61000-6-4:2007+ A11:2011 Ambient/Media temperature: -10 ... +70°C Air supply must be dry enough to avoid ice formation at temperatures below +2°C.

Maintenance No user serviable parts 

Mounting position: Operation in any orientation is possible; 

integral surface mounting bracket provided. Orientation effect <0.2%

Materials Body: zinc diecasting passivated and epoxy painted Cover: Glass reinforced PA Diaphragms: NBR;


Electrical parameters:

Input Signal :4 ... 20 mA (two wire). Terminal voltage typically < 11 V at 20 mA

Failure Mode Output pressure held at previous value when input signal fails; drift rate  0,2% of span in 5 minutes 

Overload protection 30 mA max. overload current. Unit unaffected by reverse current 

Connections 30mm square connector provided (DIN 43650, form A) mountable in 4 directions 

Span/Zero Independently adjustable up to 15 % output range;


We keep the standard model AC0100 (4-20mA input / 3-15 psi output) in stock.

List of available models (all of the following are suitable replacement units for model starting with "53"):

AC0100, AC0101, AC0111, AC012X, AC037X, AC039X, AC134X, AC138X, AC2100;