丹佛斯 EMP2_压力变送器.pdf丹佛斯 EMP2_压力变送器pdf,丹佛斯 EMP2_压力变送器

文件名称: 丹佛斯 EMP2_压力变送器.pdf

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详细说明：丹佛斯 EMP2_压力变送器pdf,丹佛斯 EMP2_压力变送器Technical brochure Pressure transmitter type EMP 2 Technical data temperatur -10C to 70'C, see also fig. 1 or mperature 50°cto70°C Temperature of medium 40oC to 100C, depending to some extent on ambient temperature (fg. 1) Media Water, fuel, oil, lubricating oil, refrigerants, ammonia, gas etc. The media must however be neutral in respect of materials ASI 316L Voltage supply Max 32V and min. 12Vdc between terminals n and p Load resistance A. max 410 ohm at 24Vd. c +50%/-20% B. max 650 Ohm at 24Vd. c+50%6/-0% Zera point adjustment 5%→20% range but max.-1-15 bar(kp/ cm2) Span adjustment ±5% of range span; but max.±5 bar(kp/cm2 Combination of span and 5%→20% of range span zero point adjustments Noise immunity Complies with the standard for industial apparatus en 61000-6-2. The standard contains tests for the following: HF felds, mains transmitted HF, voltage transients, electrostatic immunity supply voltage variations, low-frequency radiation and transient protection in accordance with Germanischer Lloyd Noise emission complies with standard EN61000-6-3 Accuracy Lin +0. 3% in all pressure ranges 2.3% FS for-1 to xx bar or kp/cm2 Temperature dependenc 1. Thermal zero point shift 1.±0.06%FS/C 2. Thermal ity(span) 2+0.06% FS/C ift Voltage dependence ±0.01%FS/10V Vibration stability 3-30 Hz amplitude 1.13 mm and 30-300 Hz acceleration 4G according to lEC 60068-2-6 The requirements of the ship classification societies are up to 100 Hz, acceleration 4G Extended specifications by prior arrangement identifcation Shock stability 500 g for 1 ms to IEC 60068-2-27 he type designation and code Enclosure IP 67 IEC 529 or DIN 40050 Housings are made of enamelled pressure-die-cast n ber of the tr itter is alumin ium(GD→AS|12) embossed on the side of the housing Pressure connection G4, G1 A standard, G3/8 A mano at the bottom close to the pressure approx 1 kg connector Cable entry Pg 13,5 for cable diameters 5-14 mm Installation conditions A: Ambient temp 400C B: Temperature og medium d4020320b10120B temperature -20 Fig Permissible ambient temperature depending on temperature of medium Mounting The primary insertion length of the connector Type EMP 2 is equipped with a 3 mm stell bracket corresponds to EN 837. Connection to the for mounting transmitter is made through a connector with a spanner flat, 14 mm across flats Pressure connection Connector with outside cylindrical thread G 12, When fitting or removing pressure lines, the some types available with G 3/8 A mano, and inside spanner flats on the pressure connector should be cylindrical thread G 14, to ISO 228 used to apply counter-torque IC PD P20. E3. 02 Technical brochure Pressure transmitter type EMP 2 Installation conditions Thin(low heat conductivity) uninsulated tube Steam 170 □ max.70°C Insulation against adiant heat Reliable, good convection Fig 2 Condensed liquid Water systems Steam plant Water in the pressure element is not harmful, To protect the pressure element against but in the event of frost a water-filled pressure temperatures in excees of the maximum element may burst. To prevent this the temperature fo the medium (100.C), the insertion transmitter should be allowed to operate on an of a water-flled loop is recommended. In the air cushion example, fig. 2, insulation against radiant heat is also shown Surge Stop damage due to Surge 1: Surge damper 2: Pump 3: Valve 4: Tank 1 In cases where valves are closed momentarily, be fitted the device can consist of a flexible surges af a value in excess of that for which the pipe, a throttle, a shock valve, or a combination pressure element is designed can occur. To avoid og these items. The amplitue of surges should damage to the pressure element, a damping never exceed the maximum range pressure of the device should pressure transmitter. Electrical connection The transmitter has a wiring diagram, see fig. 4. A function test can be performed between Terminals P(positive)and N(negative ) are terminals N and T without cutting off the current connection terminals for the supply voltage The same leads are used for supply voltage and output sig P-N 4-20mA PRLH 24V d.c max 32V d.c 40200mV Pmax r1W Fig. 4 IC PD P20.E3.02 Technical brochure Pressure transmitter type EMP 2 Pulse snubber EMP 2 with the pressure range 0-6 bar and 0- the integrated pulse snubber is designed as an 0.3 10 bar at extended test pressure is provided with mm orifice mounted in the pressure connection an integrated pulse snubber for protection of the The medium should not contain particles which sensor element against cavitations and air bub- may clog up in the orifice. The viscosity has onl bles in the media due to extreme pressure peaks little effect on the response time. Even at viscosi and pulsations. Such conditions may be caused by ties up to 100 Cst. the response time will not ex- pumps or fast operation valves in both high and ceed 4 msec low pressure systems. Sizing The maximum permissible load resistance R, for Any superimposed ripple voltages or voltage insertion between transmitter and voltage source changes in a downward direction must be can be calculated from the formula subtracted to find the smallest value of v R(g)=V-12 Any superimposed ripple voltages or voltage 20×10 changes in an upward direction must not result in the stated maximum voltage of 32 V being The load is the sum of all resistances i both leads. exceeded A A: Load in ohms s00 B: Operating range 410 C: Rated voltage 24V d.c. 20%undervoltage E: Voltage E 12 D C F.5. Load as a function of the voltage for EMP 2 T Calculatio load resistance graphs must lie within the shaded V=24 V+10% Upper=24V+10%=264V area(marked B in diagram VI=V-10%=21.6 R 21.6-12-480g 20×10 Supply voltage24V±10% ripple voltage r of 340 Q is less than 480S Lead resistance in lead n 1022 Vpper of 26, 4.c is less than Vrex of Measuring resistance inserted 32Vd.c 270 RL and v lie within the permissible Lead resistance in lead p 0Q2 operating range Measuring resistance inserted in lead p 50Ω RL=340 Q2 IC PD P20. E3. 02 Technical brochure Pressure transmitter type EMP 2 Dimensions and weight 116 7 ■ A: G72A(G/A mano) B: Pg 13.5 81 C: G14 Weight approx 1 kg Fig6 Accessories Symbol Description Material Code no Damping coil with G/s unions Damping coil and 1.5 m copper capillary 060-104766 Damping coil with G12 Damping coil unions and 1 m capillary tube. Stainless steel 060-016966 Standard washers supplied Damping coil with G/s unions Damping coil and 1 m armoured copper armoured capillary tul Copper 060-333366 下 tandard washers supplied GA×G3/3A Bras h copper washer 060333266 百AxM10ext.×1 ith copper washer Brass 060-333866 IC PD P20.E3.02 Technical brochure Pressure transmitter type EMP 2 Conversion table Newton pet lopondMeter Technical Physical Torr Poundforce C Newton square mm per square water atmosphere atmosphere Hg(0°c per Square metre) ( mn H, O) (lbf/in) N/mm mH o tm m H 10 0.1020 1.020 1.020·10 9869·10 500·10 2953·10 1450.10 1 N/mm 10 1.02010 1020 10.20 9.869 7.5·10 2953 145.0 I bar 10.197·10 10.20 1.020 0.9869 50 2953 14.50 1 kp/m 980665 9807.10 9807·10 0.9678·10 0073552895.10 1422.10 1 mHo 9806.7 9807·10 0.09807 10c0 0.1 009678 73.55 2896 1.422 I at 98.066·10 009807 0.98 10 0.9678 735.5 2896 14.22 1 atm 101325·10 0.1013 1013 10.333·10 10.33 1.033 760 2992 14.70 1 mm H 133.32 1.333.10 1.333·10 3.60 0.01360 1.360·1 1316·10 1 0.03937 1.934·10 1 in Hg 3387 3387·10 0.03387 345.3 03453 003453 003342 25.4 04912 psI 6895 6895·10 0.05895 703.1 0.7031 007031 0.06804 51.71 2036 so9001 Danfoss a/s is certificated in accordance with quality approval ISO international standard iso 9001 This means that danfoss fulfils the international 9001 standard in respect of product development, design production and sale. IC PD P20. E3. 02 Technical brochure Pressure transmitter type EMP 2 a Danfoss can accept no responsibility for passible errors in catalogues, brochures and other printed material. Danfoss reserves the right to alter its products without notice. This alsn applies to products already cn order provided that such alterations can be made without subsequential changes being necessary in specifications already agreed All trademarks in this material are property of the respective companies. Danfoss and the Danfoss logotype are trademarks of Danfoss AS. All rights reserved 8 IC PD P20.E3.02

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