Valve Positioners and Volume Boosters Model 750E I/P Electronic Valve Positioner Introduction Features & Benefits 4-20 mA provides a precise pneumatic output positioning signal from a 4-20 mA input Universal design accommodates a wide range of applications Characterized cam operation accommodates applications where reliable electronic control is required Rugged shock and vibration resistent construction ensures operation in harsh environments Field adaptability accommodates single-acting or doubleacting service provides application versatility Manifold block, gauges, gain selection, and terminal housing options accommodate a wide variety of applications Description The Model 750E is a cam-characterized, double acting electronic valve positioner that uses a standard 4-20 mA electronic input signal. It then converts this signal to a pneumatic output to position a control valve actuator. The Model 750E provides precise, controlled positioning for single or double acting actuators. The 750E’s rugged shock and vibration resistant construction also ensures accuracy within harsh industrial environments. Moreover, Cam profiles and feedback input shafts allow the Model 750E to be used in a variety of applications where reliable electronic control is required. Specifications Functional Specifications 5 Input Range The Model 750E uses a high-gain, piloted spool valve to load the actuator for positioning in response to electronic input signals. A characterized cam provides mechanical feedback. Cam profiles are available for linear, equal percentage, or quick opening position. A blank profile cam is also available for custom applications. Feedback input shafts are available for rectilinear or rotary action. Rectilinear action can range from 1/2" to 6" in length. All electronic components are securely sealed in an airtight, explosion-proof housing; however, zero and span adjustments are easily accessible for simple calibration and maintenance. 4-20 mAdc Input Impedance: 150 ohms Its versatile design and quality construction allow the Model 750E to be used with a variety of actuators. The feedback input shaft and the characterized cam can also be easily replaced in the field to convert the Model 750E from rectilinear or rotary motion. No additional parts or equipment are necessary to change between single or double acting actuators or direct/reverse action. Moreover, the 750E’s mounting is identical to that of the Model 750P Pneumatic Valve Positioner, allowing these instruments to be interchanged with a minimum of tubing changes. 0.70 scfm at 60 psig supply Supply Pressure 150 psig, maximum Supply Pressure Effect Output pressure changes less than 0.1% of span with a psig change in supply pressure Air Consumption Air Pilot Capacity 7.5 scfm at 60 psig supply Stroke Range Rectilinear: 1/2" to 6" based on 60° Rotation Rotary: 90° 5.21 Valve Positioners and Volume Boosters Model 750E I/P Electronic Valve Positioner Technical data Span Adjustment Model Number Order No. 30% of input span or maximum rated travel Temperature Limits -40 to +180°F (-40 to +82°C) Performance Specifications Repeatability 0.1% of span Linearity 1.0% of span (independent based) Hysteresis 1.0% of span (typical) Dead Spot Less than 0.1% of span Response Level Less than 0.1% of span Open Loop Gain Single Action: 200:1 with locked actuator shaft Double Action: 400:1 with locked actuator shaft 5 Mechanical Specifications Enclosure Rating NEMA 4 Weight 7.5 lbs. (3.4 kg) Electrical Approval FM and CSA Intrinsically Safe: Class I, Div. 1, Groups A, B, C & D Class II, Div. 1, Groups E, F, & G Class III, Div. 1 When installed in accordance with Moore drawing 15032-7502, Rev. 2 Entity parameters: Vmax = 40 Vdc Ci = 0 Imax = 150 mA Li = 0.16 mH (750E1) = 0.60 mH (750E2) Explosion Proof: Class I, Div. 1, Groups B, C, D (without terminal enclosure) Class I, Div. 1, Groups C & D (with terminal enclosure) Dust-Ignition Proof: Class II, Div. 1, Groups E, F & G Suitable for: Class I, Div. 2, Groups A, B, C, D Class III, Div. 1 Enclosure Rating: NEMA4 CENELEC/BASEEFA EEx ia IIC T5 IP66 (Tamb = -40 to +82°C) Ex N IIC T5 IP66 (Tamb = -40 to +82°C) 5.22 I/P Electronic Valve Positioner Input Signal • 4 to 20 mAdc Action • Rectilinear (1/2 to 4" stroke) • Rectilinear (3 to 6" stroke) • Rotary (90°) • Rectilinear (1/2 to 2" stroke) • NAMUR (30 x 80 x 20 mm) Characterized Cam • Linear (rectilinear action) • Linear (rotary action) • Modified Equal Percentage (rectilinear action) • Modified Equal Percentage (rotary action) • Quick Starting (rectilinear action) • Quick Starting (rotary action) • Blank Gauges and Manifold • Not Required • Gauges with Manifold Block • Manifold Block Only Position Indicator • Not Required • Positioner Indicator Gain/Elastomers • Normal Gain - Buna-N • Stabilized Gain - Buna-N • Normal Gain - Viton (Opt.) for Corrosion/Ozone/Radiation Resistance • Normal Gain - Flourosilicone (Opt.) for Corrosion/Ozone/ Radiation Resistance Terminal Housing • Not Required • Approved Electrical Approval • FM/CSA • EEx/Ex Req. Terminal Housing “R” 750E■■■■ - ■■■■■ ▲▲▲▲ ▲▲▲▲▲ 1 1 2 3 4 N 1 2 3 4 5 6 7 N G M N P N S V F N R F B Valve Positioners and Volume Boosters Model 750E I/P Electronic Valve Positioner Technical data Mounting Dimensions 5 5.23