Low Pressure Differential Transmitter TM AST5100 The AST5100 Wet - Wet Differential Pressure transmitter is your accurate pressure sensing device for low differential pressure. With a differential pressure range as low as 0 to 5” water column (12.5mbar), this product can be used to measure flow across an orifice, differential across a filter, tank level, or gauge pressure. Using LVDT technology and AST’s advanced electronics, the AST5100 delivers accurate, repeatable measurements. Applications Liquid Level Control including Bubbler systems Climate Control Energy Management Air-fuel Ratio including Measurement for Vapor Recovery Leak Detection Air or liquid Filtration Flow Measurement Furnaces Benefits Accurate Low Pressure Measurement Excellent Repeatability Wide Range of Liquids and Gases including: Water, Natural Gas, Hydrocarbon Fuels, Air and Non-Corrosive Gases Wetted Materials Nickel Alloy 52, Ni-Span C, Viton, 304 Stainless Steel, Aluminum 6061, RoHS Solder, Loctite 680 (meets NSF61) Environmental Data Temperature Operating -40 to 80°C (-40 to 176°F ) Storage -40 to 100°C (-40 to 212°F) Thermal Limits Installation Guidelines The AST5100 must be mounted on a flat surface within ± 15° to the ideal 0° plane to maintain specifications. Do not Overtighten the pressure connections or insert any objects in P1 or P2 to avoid damaging the sensing element. When using isolation valves, both should be mounted close to the sensor. For liquid level and wet applications, install bleed screw adapters close to P1 and P2 so that trapped air can be purged if needed. For optimum performance, always make sure pressure is equalized within the pressure range chart ranges. The AST5100 has asymmetric protection on P1 and P2. Performance @ 25°C (77°F) Accuracy <±1.0% of FS Compensated Range 0 to 55°C (32 to 131°F) Stability (1 year) ±0.5%FS, typ TC Zero <±1.5% of FS Burst Pressure 2000 PSI TC Span <±1.5% of FS Pressure Cycles >100,000 Cycles * Accuracy includes non-linearity, hysteresis & non-repeatability Electrical Data Output 4-20mA 0-5V Three Wire Excitation 10-28VDC 10-28VDC Output Change with Input Voltage Change - <0.1% from 10 to 32 VDC Current Consumption: - < 10mA Bandwidth 5Hz 5Hz Output Noise: < 0.0035mA, RMS < 1mV, RMS Zero Offset: < ± 1% FS < ± 1% FS Span Tolerance: < ± 1.5% FS < ± 1.5% FS Output Load: 0-800 Ohms@10-28 VDC 5k Ohms, min. Reverse Polarity Yes Yes American Sensor Technologies • 450 Clark Dr., Mt. Olive, NJ 07828 • phone (973) 448-1901 • fax (973) 448-1905 • email: firstname.lastname@example.org TM Ordering Information AST5100 J 00050 H 4 Y E 5 000 Series Type Process Connection J= 1/8” NPT Female Pressure Range See Chart Pressure Unit H= Inches H2O P= PSI Outputs 2= 0-5V 3-wire 4= 4-20mA (2 wire loop powered) Electrical (for wiring information visit: http://www.astsensors.com/wiring.php) Y= M12x1 Wetted Material 5= Nickel Alloy 52, Ni-Span C, Viton, 304 Stainless Steel, Aluminum 6061, RoHSSolder, Loctite 680 (meets NSF61) Options 000= No Options Mating PUR 22 AWG Cable Assembly Pins Conductor Colors 0-5V 3-wire 4-20mA Part Number Cable Length Pin 1 Brown +V +V A10089 4 feet (1 m) Pin 2 White N/C N/C A10090 10 feet (3 m) Pin 3 Blue -V -V Pin 4 Black V Out N/C Pressure Ranges Dimensional Data Pressure Code Proof Pressure (P1>P2) Proof Pressure (P2>P1) 0-5 inch H2O (12.5 mbar) 00005H 5 PSI 3 PSI 0-10 inch H2O (25 mbar) 00010H 5 PSI 3 PSI 0-20 inch H2O (50 mbar) 00020H 8 PSI 5 PSI 0-50 inch H2O (125.5 mbar) 00050H 15 PSI 10 PSI 0-100 inch H2O (249 mbar) 00100H 35 PSI 25 PSI 0-200 inch H2O (498 mbar) 00200H 35 PSI 25 PSI 0-15 PSID (1034 mbar) 00015P 75 PSI 50 PSI Differential Pressure www.astsensors.com The over-pressure specification is the maximum pressure the AST5100 can see without damage. Any pressure applied over the listed numbers will likely damage the sensor and will, at minimum, cause a permanent zero shift. Over-pressure between 2X span and the numbers listed applied to port P1 will likely cause no permanent harm. Over-pressure of between 2X span and the numbers listed applied to port P2 may cause a temporary zero shift. To recover from a zero shift caused by negative over-pressure to P2 within the listed limits, apply a positive over-pressure P1 to just under the listed limit for a duration of 5 minutes. Remove the over-pressure and check the zero with no pressure applied. If the zero has not recovered, repeat the positive over-pressure and recheck zero. If it has not recovered after the second try, the zero has been permanently shifted. Contact the factory. © 2014 American Sensor Technologies Inc. AST5100 03/13/2014. All specifications subject to change without notice.
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