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| Rugged Electronic Pressure Converter TYPE 443 Features The type 443 electro-pneumatic converter is designed for demanding process control applications in which stability, ruggedness and versatility are essential. It accepts a variety of analogue signal inputs, including 4-20mA, and has built-in auto/manual control facilities for This model is an improved version of the well established |
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4-20mA feedback
| Physical | ||
| *Casing | Diecast zinc alloy, grey stove enamel finish: hinged lid | |
| *Mounting | Surface mount through integral fixing holes, any orientation | |
| *Pneumatic connections | 1/4” NPT | |
| *Electrical connections | Via cable glands to 16mm Klippon terminal block | |
| *Controls Trimpots Switches Relay LED’s |
Span, zero (control and feedback),response rate Signal failfreeze or instrument fail safe. Input signal selection. Auto/Manual select (biased Auto). Raise/lower switches. Remote/Manual switches or potentiometer select. Power/signal/Auto isolated contact pair in relay. Contact rating -50VA. Indicates if converter is in auto condition, and valid control and power present. Indicates power control signal present, and out-of-balance signal difference between auto and manual signals. |
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| *Vibration | No effect | |
| *Weight | 2.3Kg | |
| *IP. Rating | IP65 | |
| *Temperature Stability (span/zero) |
-5°C to +45°C ±0.03%/°C FS change -10°C to +60°C ±0.05%/°C FS change |
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| *Electromagnetic Compatibility |
Compliant with the requirements of the EMC directive, assessed against. BS EN50082-2: 1995,BS EN50081-2: 1994. ±4% FS susceptibility observed under all test conditions when screened cable is used connected both at source and instrument ends. CE marked. | |
| Accuracy | ||
| *Output Signal | Outlet pressure min: 3bar(0.2psig); max; less than 7bar (100psig) | |
| *Air Supply | Up to 100psig (7bar). Dry, non corrosive air filtered to 5microns | |
| *Flow Capacity | Up to 280Nl/min | |
| *Air Consumption | Low pressure - 0.2l/min typical High pressure - 0.4l/min typical |
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| *Response Time (adjustable over approx 10:1 range) |
10-90% or 90-10% FS step: 5 sec max ±10% change 2 sec max |
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| *Linearity | ± 0.5% FS | |
| *Total Error | ±0.5% of span typical, independent error (combined effect of hysteresis, deadzone and repeatability) | |
| *Stability (6 months) | 0.25%(span/zero) | |
| *Failfreeze stability | <±-2% setpoint/hour | |
| Note: | Instrument performance is guaranteed within the band 5 to 95% of range. Performance variations may exist outside this range. | |
| Electrical | ||
| *Supply Voltage | 24V ± 20%d.c.100mA | |
| *Input Signal | 4-20mA, 1-5V, 2-10V (selected by switch and connection) | |
| *Input Common Mode Voltage Limit |
0 to +5V max (control I/p -ve to supply -ve) | |
| *Input impedance | 4-20mA 250W; 1-5V, 2-10V: 10kW | |
| *Feedback Signal | 4-20mA (o/p voltage 12V max) | |
| *Note | Voltage feedback obtainable via load resistor. | |
| *LED signal | 1-5V: 250W; 2-10V: 500W | |
| *External potentiometer | Nominal 10mA drives for out-of balance LEDs | |
| *External raise/lower/ auto manual switches |
Nominally 1kW ± 50W | |
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| Ordering Information | |
| Output Pressure | Order Code |
| 3-15psi | 53920100 |
| 0-100psi | 53921600 |
| 0.2-1bar | 53922100 |
| 0-7bar | 53923600 |
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Electronic I/P Converters |
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