ISSUE 2 Installation Instructions for the MLH Series Pressure Sensors WARNING PERSONAL INJURY DO NOT USE these products as safety or emergency stop devices or in any other application where failure of the product could result in personal injury. Failure to comply with these instructions could result in death or serious injury. GENERAL INFORMATION Sensors with pressure ranges less than 300 psi are vented to the atmosphere through a case vent hole that is protected with a vapor inhibiting material. PRESSURE OVERLOADS CAUTION PRODUCT DAMAGE • Do not exceed the pressure overload rating. Failure to comply with these instructions may result in reduced life, or electrical failure. The MLH Series pressure sensors will withstand high overloads; however, if the overload rating is exceeded, the life of the MLH Series may be reduced and electrical failure may occur. Both static and dynamic overloads must be considered, particularly in hydraulic system applications. Hydraulic pressure fluctuations can have very high and very fast peak pressures, as in a water hammer effect. An oscilloscope is recommended for determining if highpressure transients exist in a system. If system pressure pulses are expected, choose a sensor with a pressure rating high enough to allow continuous operation at the highest expected pressure spikes. A pressure ‘snubber’ may be used to reduce the peak pressure applied to the sensor. Snubbers may be obtained from the Mott Corp., Farmington, CT, USA (860) 747-6333. Catalog #41001/8-SS is recommended. MEDIA COMPATIBILTY CAUTION PRODUCT DAMAGE • Use non-abrasive, chemically compatible media to prevent damage to diaphragm or port materials. Failure to comply with these instructions may result in product failure. The MLH Series pressure port and diaphragm is an assembly of Haynes 214 alloy (or equivalent) and 304 stainless steel. Sensing and Control 50010132 INSTALLATION CAUTION PRODUCT DAMAGE • Use a hex wrench for installation. Never apply torque to the connector housing or the body of the sensor. • Do not subject the sensor to high temperatures from soldering, brazing, or welding of the system plumbing or operating environments above the specified maximum temperature. Failure to comply with these instructions may result in product damage. Ratiometric voltage and mV output devices require a regulated 5.0 Vdc supply. All other versions can use an unregulated supply within the ranges noted under the excitation specifications. The power supply should be off while wiring. ELECTROMAGNETIC ENERGY/NOISE CAUTION PRODUCT DAMAGE/ERRATIC OPERATION • Do not use in areas where electromagnetic energy may affect sensor operation. Failure to comply with these instructions may result in improper operation and/or product failure. The MLH Series has been rated for high immunity to electrical noise; however, care should be taken when used around high voltage sources that emit high levels of radiated electromagnetic energy like variable frequency motor drives, solenoids, radio transmitters and engine ignition systems. The use of shielded cable and grounding of pressure port is also recommended. BENCH TEST For incoming inspection or sensor failure evaluation, connect the sensor to a dc voltage supply (off). The supply voltage should be set within the range specified for the model. Based on the sensors specified output, connect the output lead(s) to a digital dc or mA meter. With no pressure on the sensor, turn on the power supply and read the output signal on the voltmeter. The reading should correspond to the specification indicated for null offset. If not, check the connections, wire color code and the setting of the power supply. WIRING INSTRUCTIONS The wiring code for electrical connection is shown in Tables 2 and 3. When using a connector, the use of the correct size wire is important to ensure environmental sealing. Fill all holes in the connector seal even if only two leads are used. Honeywell recommends using a crimping tool for crimping wires to the connector pins. Contact the individual connector manufacturer for mating connector wiring. MLH Series Pressure Sensors TABLE 1. SPECIFICATIONS Parameter Ratiometric Regulated Issue 2 Excitation 5.0 Vdc ±0.25 Vdc 7.0 Vdc to 35 Vdc 8.0 Vdc to 35 Vdc 14.0 Vdc to 35 Vdc 7.0 Vdc to 30 Vdc 5.0 Vdc 9.5 Vdc to 35 Vdc -40 °C to 125 °C [-40 °F to 257 °F] Unamplified output Current output Compensated operating and storage temperature Weight 50010132 Signal Output 0.5 Vdc to 4.5 Vdc 0.5 Vdc to 4.5 Vdc 1.0 Vdc to 6.0 Vdc 0.25 Vdc to 10.25 Vdc 1 Vdc to 5 Vdc 0 mV to 50 mV 4 mA to 20 mA with 25 Vdc excitation 57 g [2 oz] TABLE 2. PRESSURE RANGES Units Pressure Proof pressure Burst pressure psiG 50 150 500 psiG 100 300 1000 psiG 150 450 1500 psiG 200 600 2000 psiG 250 750 2500 psiS 300 900 3000 psiS 500 1500 5000 psiS 1000 2000 10000 psiS 2000 4000 20000 psiS 3000 6000 30000 psiS 5000 7500 30000 psiS 8000 12000 30000 Units Pressure Proof pressure Burst pressure barG 6 18 60 barG 10 30 100 barG 16 48 160 barS 25 75 250 barS 40 80 400 barS 60 120 600 barS 100 200 1000 barS 160 320 1600 barS 250 500 2068 barS 350 700 2068 barS 500 750 2068 barS 550 825 2068 FIGURE 1. MOUNTING DIMENSIONS (For reference only. mm [in].) A variety of pressure port and electrical termination connection options is available. Contact your Honeywell representative for more details. 2 Honeywell • Sensing and Control MLH Series Pressure Sensors Issue 2 50010132 TABLE 3. VOLTAGE AND CURRENT OUTPUT MODELS WITH PIN ASSIGNMENTS Data Sheet Code Connector Name B Packard Metripack C Hirschmann G4W G Din 43650 form C H AMP 1.4 Superseal Sensor Back View D M12-1 Brad Harrison T Deutsch DTM04-3P CURRENT OUTPUT (2-WIRE) MODELS Pin Assignments A B C D A B C D 1 2 3 4 1 2 3 4 + Excitation Output Common — + Excitation - Excitation (return) N/C N/C Output Common + Excitation N/C N/C + Excitation Common N/C Output + Excitation - Excitation (return) Common Output + Excitation — N/C + Excitation Output Common — + Excitation Common Output + Excitation Common Output A C B 3 2 4 1 4 1 2 3 3 1 2 Red = A White = B Black = C L, M or Cable Lead P VOLTAGE OUTPUT (3-WIRE) MODELS Pin Assignments 3 1 4 3 2 N/C N/C - Excitation + Excitation (return) — + Excitation - Excitation (return) N/C — N/C + Excitation - Excitation (return) N/C N/C — + Excitation - Excitation (return) N/C — 1 2 - Excitation + Excitation (return) TABLE 4. MILLIVOLT OUTPUT MODELS WITH PIN ASSIGNMENTS Data Sheet Code Connector Name C Hirschmann G4W G Din 43650 form C L, M or Cable Lead P D M12-1 Brad Harrison (4-WIRE) MODELS Pin Assignments Sensor Back View 2 3 4 1 4 1 2 A B C D 1 2 3 4 + Signal - Excitation - Signal + Excitation + Excitation - Signal + Signal - Excitation + Excitation + Output Common - Output + Signal - Excitation - Signal + Excitation 3 Red = A Green = B Black = C White = D 2 1 3 4 Honeywell • Sensing and Control 3 MLH Series Pressure Sensors WARRANTY/REMEDY Honeywell warrants goods of its manufacture as being free of defective materials and faulty workmanship. Honeywell’s standard product warranty applies unless agreed to otherwise by Honeywell in writing; please refer to your order acknowledgement or consult your local sales office for specific warranty details. If warranted goods are returned to Honeywell during the period of coverage, Honeywell will repair or replace, at its option, without charge those items it finds defective. The foregoing is buyer’s sole remedy and is in lieu of all other warranties, expressed or implied, including those of merchantability and fitness for a particular purpose. In no event shall Honeywell be liable for consequential, special, or indirect damages. While we provide application assistance personally, through our literature and the Honeywell web site, it is up to the customer to determine the suitability of the product in the application. Specifications may change without notice. The information we supply is believed to be accurate and reliable as of this printing. However, we assume no responsibility for its use. Issue 2 SALES AND SERVICE Honeywell serves its customers through a worldwide network of sales offices, representatives and distributors. For application assistance, current specifications, pricing or name of the nearest Authorized Distributor, contact your local sales office or: E-mail: [email protected] Internet: www.honeywell.com/sensing Phone and Fax: Asia Pacific +65 6355-2828 +65 6445-3033 Fax Europe +44 (0) 1698 481481 +44 (0) 1698 481676 Fax Latin America +1-305-805-8188 +1-305-883-8257 Fax USA/Canada +1-800-537-6945 +1-815-235-6847 +1-815-235-6545 Fax Automation and Control Solutions Sensing and Control Honeywell 1985 Douglas Drive North Minneapolis, MN 55422 www.honeywell.com/sensing 50010132 50010132-2-EN IL50 GLO Printed in USA October 2006 Copyright © 2006 Honeywell International Inc. All rights reserved.