-1089 1.0 INTRODUCTION This specification covers the application requirements of Measurement Specialties Accelerometer ACH-01. The ACH- 01 is an inexpensive, general purpose accelerometer with outstanding performance characteristics. The use of piezoelectric polymer film in the ACH-01 provides many cost/performance advantages that allow it to be used in a wide range of applications where the use of traditional accelerometer technology is impractical. It is specifically designed for high volume applications which require the permanent installation of an accelerometer, such as machine health monitoring, modal analysis, automotive sensors, appliances, and feedback control systems. Features of the accelerometer include:  Wide Frequency Response  Low Transverse Sensitivity  Excellent Phase Response  Wide Temperature Range  Wide Dynamic Range  Small Temperature Dependence  Low Cost  Large Supply Voltage  Excellent Linearity  Low-Impedance Output  Very High Resonant Frequency  Ultra-Low Power 1.000 .700 (V+) RED (OUT) .515 .244 SERIAL # .050 ACH-01-02 with PinsACH-01-04 with Wires 40.0.740 .515 .080 TYP CONNECTOR: .244 ACH-01-03 with Shielded Cable 81 INFORMATIONAL NOTES AND PN: 1004568-8 LOC ER DISCLAIMER cations.Specifications subject to change. Consult MSI for latest specifi For drawings, technical data or samples, call 610-650-1500 of 4Copyright 1998 by MSI. All International Rights Reserved. SERIAL # Connector Detail AMP P/N 104257-2 RED (DRAIN)(V+) 3 WHITE (SOURCE)(OUT) 2 SHIELD(GND) 1 ACH-01 SERIAL # LEADS (3) 12.0" LONG CENTER LINE #26 AWG PVC INS. .10 TYP. (V+) ACH-01 (GND) (OUT) WHITE .025 SQUARE PINS (GND) BLACK Note: All dimensions in inches and are reference. 30 DEC 99 Rev E 114Accelerometer ACH-01 Application Specification 114-1089 This paragraph is reserved for a revision summary of changes and additions made to this specification. Current revision reflects only document format changes: no specification changes. Reference attached MSI Part Numbers and call (610) 650-1500 in the USA or +49 6074 862 822 in Europe to obtain additional product information. MSI Customer Drawings are available for specific products. The information contained in Customer Drawings takes priority if there is a conflict with this specification or with any other technical document supplied by MSI. There is an interface amplifier available to simplify connection to the ACH-01, the IB-ACH-01. See MSI Instruction Sheet 408-9953. 2.5 Part Numbers INTERFACEDESIGNATORPART NUMBER ACH-01-020-1000985-0 ACH-01-031-1001220-0 ACH-01-041-1001497-0 IB-ACH-010-1003058-0 If higher temperature or other non-standard specifications are required, please consult factory for alternative configurations and enhanced performance options. 2 Specifications subject to change. Consult MSI for latest specifications. Printed in U.S.A. For drawings, technical data or samples, call 610-650-1500. of 4 Measurement Specialties Incorporated, Norristown, PA 19403 610-650-1500Rev E Amplifier Box Discrete Wires Shielded Cable Pins 2.4 Applications Material 2.3 Drawings 2.2 Customer Assistance 2.1 Revision Summary 2.0 REFERENCE MATERIALS Accelerometer ACH-01 114-1089 Performance (T=25 ESymbolMinTypMaxUnits M7911mV/go f25l f1020kHzu 10Hz130 100Hz20 mg/ 1kHz6 150g 0.11.0% M2.05%t f35kHzo 1010kHz V+340 l3090A dss 20k Environmental Characteristics T-4085Co T-4085Cs A1000gm 0.3g/ 0.35g/C Physical Characteristics W8 ( M(4) @ 3Hz LLFo 3 Specifications subject to change. Consult MSI for latest specifications. Printed in U.S.A. For drawings, technical data or samples, call 610-650-1500. of 4 Measurement Specialties Incorporated, Norristown, PA 19403 610-650-1500Rev E (6) Typical Value at 1kHz(2) 2 dB from nominal (5) Includes 40" cable and connector(3) @ 250 in base plane 1) 3 dB limit grams----Weight (5) Cable ------Transient Temp Sensitivity (4) ------Base Strain Sensitivity (3) ----Maximum Shock Level --Storage Temperature --Operating Temperature (2) ------Output Impedance (6) --Supply Current (6) Volts--Drain Voltage (6) Limit)(6) --Phase Deviation (5 ----Resonant Frequency --Transverse Sensitivity ----Linearity ------Dynamic Range ---- Hz ---- ---- Equivalent Noise Floor --Upper Frequency Limit(1) Hz--Lower Frequency Limit (1) Sensitivity C) 2.6 Specifications Accelerometer ACH-01 114-1089 Mounting methods play a critical role in determining the overall performance of any accelerometer. The ACH-01 is no exception. An improperly mounted accelerometer can give erroneous results. For this reason, MSI Sensors recommends the following mounting method to insure the proper performance of the ACH-01: Adhesive Mounting Method - The surface should be flat. The area where the ACH-01 is to be mounted should be thoroughly cleaned to remove any dirt or oil present on the surface. Use a quick setting, viscous methyl cyanoacrylate adhesive such as Loctite's Black MaxJ or any epoxy such as Devcon's 5-Minute epoxy. Apply the adhesive sparingly to one surface following the manufacturer's directions. Apply pressure and allow the adhesive to set. Soft adhesives, such as double-sided tape or pressure sensitive adhesives, should not be used since they can adversely affect the ACH-01's performance. Cable should be adhered to the surface. There is an interface amplifier available to simplify connection to the ACH-01, the IB-ACH-01. See Instruction Sheet 408-9953. In an effort to keep the product cost low, the ACH-01 uses a ceramic substrate as the mounting base. Because of this, the ACH-01 is susceptible to base strain and temperature transient effects. A mechanically rigid and thermally non- conductive mounting surface is highly recommended to limit these effects. MSI application engineers are available to recommend various mounting arrangements for your specific application. The accelerometer ACH-01 accommodates various electrical interface circuits. A typical example is provided in the following figure. Since the ACH-01 uses the same internal JFET as Measurement Specialties= ACH-04-08-05 Multiple- Axis Accelerometer (Part Number: 1003800-5), additional circuit ideas can be found by reviewing Application Specifications 114-27002 and 144-70025. The ACH-01 equivalent electrical schematic is also shown. 4 Specifications subject to change. Consult MSI for latest specifications. Printed in U.S.A. For drawings, technical data or samples, call 610-650-1500. of 4 Measurement Specialties Incorporated, Norristown, PA 19403 610-650-1500Rev E 3.2 Electrical Interface Circuits 3.1 Mounting 3.0 REQUIREMENTS Accelerometer ACH-01