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Marsh Bellofram PCD Division Type 1000 Transducers

Marsh Bellofram PCD Division Type 1000 Transducers
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Marsh Bellofram PCD Division Type 1000 Transducers - 1

58 800.727.5646 • www.marshbellofram.com Transducers Description The Type 1000 Transducer is an electro-pneumatic device that reduces a supply pressure to a regulated output pressure directly proportional to an electrical input signal. The Type 1000 accepts a wide range of supply pressures, ranging from a minimum of 3 psig (0.2 BAR) above the maximum output up to 100 PSIG (6.9 BAR). An integral pneumatic volume booster is included in the design to provide high flow capacity (up to 12 SCFM/339 SLPM). Model selections include general purpose, NEMA 4X Type, extended range, high relief, intrinsically safe, and explosion proof. Applications The Type 1000 Transducer converts an electrical signal to a pneumatic output which can be used to operate the following: • Valve actuators • Damper and louver actuators • Valve positioners • Controllers • Relays • Air cylinders • Clutches and brakes Used in: • Liquid, gas and slurry processing instrumentation • HVAC systems • Paper handling controls • Textile processing systems • Energy management systems • Petrochemical processing systems Standard Features • Low Cost • Built-in Volume Booster • Small Size • Field Reversible • Low Air Consumption • Mounts at Any Angle • Convenient External Span & Zero Adjusts (Except for Explosion Proof Models) • Light Weight • Wide Supply Pressure Range • Low Supply Pressure Sensitivity Type 1000 I/P & E/P Transducers Principle of Operation The Type 1000 Transducer is a force balance device in which a coil is suspended in the field of a magnet by a flexure. Current flowing through the coil generates axial movement of the coil and flexure. The flexure moves against the end of a nozzle, and creates a back pressure in the nozzle by restricting air flow through it. This back pressure acts as a pilot pressure to an integral booster relay. Consequently, as the input signal increases (or decreases, for reverse acting), output pressure increases proportionally. Zero and span are calibrated by turning easily accessible adjusting screws on the front face of the unit. The zero adjusting screw causes the nozzle to move relative to the flexure. The span adjusting screw is a potentiometer that limits the current through the coil. A thermistor circuit in series with the coil provides temperature compensation. Split Ranging The 4-20 mA input, 3-15 PSIG output model can be recalibrated to provide 3-9 PSIG or 9-15 PSIG output, for split ranging applications. Mounting The Type 1000 transducers can be pipe, panel, or bracket mounted in any position. Positions other than vertical will require recalibration of the zero adjustment. For maximum output pressure stability, the Type 1000 should be mounted in a vibration-free location or such that vibration is isolated to the X and Z axis shown on the dimensional drawings. Field Reversible All Type 1000 transducers are calibrated at the factory for direct acting operation but may be used in the reverse acting mode by reversing the polarity of the signal leads and recalibrating. When calibrated for reverse acting applications, the Type 1000 transducers provide a minimum of their full rated output pressure (i.e., 15, 27, or 30 PSIG) upon input signal failure. Type 1000 for Extended Range Description The Bellofram Extended Range I/P and E/P Transducers are based on Bellofram’s proven Type 1000 transducer line - the best selling transducers in the business. The large span adjustment range of this line allows recalibration to fit applications with output ranges from approximately 3-35 PSIG (0.2-2.4 BAR) to 3-145 PSIG (0.2-10 BAR). Type 1000 Transducers The units accept supply pressures up to 150 PSIG (10.5 BAR) and provide flow capacity to 24 SCFM (677 SLPM). The Type 1000 I/P and E/P Transducers are more cost effective and more accurate than typical high output systems using transducers coupled to boosting or multiplying relays. Type 1000 with High Relief Description Expanding upon the proven accuracy, reliability, and rugged construction of the Type 1000 General Purpose, these transducers provide extra fast “blowdown” for a very rapid release of downstream pressure. The extra relief feature makes these units suitable for cylinder return stroke actuation, air hoists, and similar applications requiring fast exhaust. These units accept supply pressures to 100 PSIG (6.9 BAR), with output ranges from 1-17 PSIG (0.07-1.2 BAR) to 6-30 PSIG (0.4-2.1 BAR), and provide exhaust capacities of 7 SCFM (336 SLPM).

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Marsh Bellofram PCD Division Type 1000 Transducers - 2

www.marshbellofram.com • 800.727.5646 59 Transducers Type 1000 Transducers Type 1000 General Purpose Type 1000 High Relief Type 1000 Extended Range Type 1000 Explosion Proof Supply Pressure Range 3 PSIG (0.2 BAR) above max. output to 100 psig (7 BAR) 3 PSIG (0.2 BAR) above max. output to 100 PSIG (7 BAR) 5 PSIG (0.4 BAR) above max. output to 150 PSIG (10.4 BAR) (100 PSIG / 7 BAR for 2-60 PSIG / 0.1-4.1 BAR models) 3 PSIG (0.2 BAR) above max. output to 100 PSIG (7 BAR) Supply Pressure Sensitivity ±0.15% of span per 1.5 PSIG (0.1 BAR) ±0.15% of span per 1.5 PSIG (6.1 BAR) ±0.004% of span per...

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Marsh Bellofram PCD Division Type 1000 Transducers - 3

60 800.727.5646 • www.marshbellofram.com Transducers Type 1000 General Purpose Ordering Information Input Output* Part Number Impedance BAR PSIG (Nominal) 4-20mA 0.2-0.6 3-9 961-072-000 90 Ù 0.6-1.0 9-15 961-073-000 90 Ù 0.2-1.0 3-15 961-070-000 180 Ù 0.2-1.9 3-27 961-074-000 220 Ù 0.4-2.1 6-30 961-075-000 220 Ù 0.07-1.2 1-17 961-116-000 250 Ù 0.2-1.0 3-15 961-089-000 180 Ù 10-50mA 0.2-1.0 3-15 961-076-000 70 Ù 0.2-1.9 3-27 961-077-000 85 Ù 0.4-2.1 6-30 961-078-000 85 Ù 0-5V 0.2-1.0 3-15 961-079-000 615 Ù 0.2-1.9 3-27 961-080-000 530 Ù 0.4-2.1 6-30 961-081-000 530 Ù 1-9V 0.2-1.0 3-15...

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Marsh Bellofram PCD Division Type 1000 Transducers - 4

www.marshbellofram.com • 800.727.5646 61 Transducers Type 1000 Explosion Proof Dimensional Drawing; Optional Mounting Bracket & Hardware Order kit #201-971-079-000 Optional Mounting Hardware Order Kit #201-971-078-000 Drawings and dimensions are for reference only. Type 1000 Hazardous Location Use Ordering Information Input Output* Part Number Impedance (Nominal) Agency Approvals BAR PSIG (See notes) Type 1000 Explosion Proof 4-20mA 0.2-1.0 3-15 961-098-000 180 Ù Explosion-Proof, Factory Mutual1 0.2-1.0 3-15 961-098-100 180 Ù CSA Explosion Proof 1-9v 20-100 3-15 961-142-000 985 Ù Explosion...

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