3. Teseq NSG 435 Teseq NSG 437 Teseq NSG 438 Teseq NSG 438A (Same as EM Test ESD NX30) Teseq NSG 438 Auto. Teseq NSG 437 comprehensively fulfills virtually all international standard requirements. The Teseq INA 4411 optional tip can generate rise times of less than 400ps, allowing investigation of. Rent Teseq NSG 438 30kV ESD Simulator Gun . The simulator is simple, convenient and safe to use. Typically In Stock. Typically In Stock. electric drives, high voltage batteries, DC-DC converters, on-board chargers and other high voltage components. Rent the Teseq NSG 437 ESD simulator 30kv air and contact mode testing for MIL-STD-883 and other HBM requirements with INA4561 100pf/1500Ω network. Teseq NSG 437 ESD Simulator for IEC 61000-4-2 and ISO 10605 comprehensively fulfills virtually all international standard requirements. Air- and contact-discharge to 30 kV Color touch panel control Advanced. . Suitable for IEC. This military standard from 1984 provides testing methods and requirements for electroexplosive subsystem safety for space systems. Teseq NSG 437 Electrostatic Discharge (ESD) Simulator Gun for GR-1089 & IEC 61000-4-2 . . NSG 437 generates pulses from 200 V to 30 kV,. Teseq (Schaffner) NSG 437. The Teseq NSG 437 Electrostatic Discharge (ESD) Simulator Gun for GR-1089 & IEC 61000-4-2 is designed to sit comfortably in the operator’s hand, with operating conditions constantly displayed and accessible on a bright, clear color touch display. It can be used for measurements up to 30kV. 00. 80 easy-to-change R/C networks. The NSG 437 includes an output network 150 pF / 330 ohms as per IEC / EN 61000-4-2 and ISO 10605. control ESD Test Management Tool. STANAG 4490 - ESD Test Solutions (NSG 437 & NSG 438) Overview This military standard is focused on electrostatic discharge sensitivity testing for explosives per NATO and is in the most recent 2001 version. Teseq NSG 437: COMPREHENSIVE ESD SIMULATION SYSTEM (30kV air and contact) Includes: Discharge Pistol, IEC 61000-4-2 330 Ohm/150pF High Voltage Network, charging unit 80 – 240VAC, Ground cable, User. . The NSG 438 is the flagship ESD simulator optimized for automotive testing. For some testing situations, the calibration is not a. 00. Monthly Rentals Ship Today Order Online, Easy Checkout 2 Days Free. Rent Get Quote. In Stock. 00. Teseq INA 417B Optical link cable to PC for NSG 437/438 ESD Gun. Teseq offers the world’s most comprehensive range of EMC systems for immunity and emissions testing. 5 kV. 00. 1 Configuration. Based on over 60 optional discharge networks, the NSG 437 can meet any of. Serial No. Teseq NSG 437-AUTOMOTIVE ESD Simulator/Gun, 30kV includes: Discharge Pistol, IEC 61000-4-2 330 Ohm/150pF High Voltage Network, Mains adapter / charging unit 80 – 240VAC, Ground cable, User manual. Version: 1. $895. . Meets and far exceeds the requirements in EN/IEC61000-4-2. Add to cart. The coupler is characterized by a. The Teseq NSG 437 ESD Simulator is an electrostatic discharge testing system that produces up to 30 kV of air and contact discharge. 00. The NSG 437 generates pulses from 200 V to 30 kV, in both air and contact discharge operation modes. Teseq NSG 437 Electrostatic Discharge (ESD) Simulator Gun for GR-1089 & IEC 61000-4-2 . As supplied in the basic set, the system is equipped with a 150 pF / 330 Ω NSG 437 comprehensively fulfi lls virtually all international standard requirements. 1 Ω steps. $595. Single phase power sources are available from 3kVA up to 7 kVA. Haefely ONYX 30 kV ESD Test Gun. $895. 1 . ESD Tester TESEQ NSG-437 1282 2021-08-24 Radio Frequency Electromagnetic Field (RS) Prüfbericht - Produkte Test Report - Products Prüfbericht - Nr. All of our EMC test equipment rentals come with an A2LA accredited calibration. Rent or buy today. Light version with uncompromising test performance. Based on over 60 optional discharge. 2021 . The touch screen interface saves users time from. Teseq NSG 435 ESD Simulators are calibrated to IEC/EN 61000-4-2 requirements. In the case of air discharges the simulator is discharged by holding the tip close to the EUT. Even more convenient is the touch panel display of the NSG 437 and NSG 438 with key pad func -. The target can be purchased as an option to the ESD generators, NSG 435, NSG 437, NSG 438 and more. Condition New. Teseq NSG 437 Electrostatic Discharge (ESD) Simulator Gun for GR-1089 & IEC 61000-4-2 . $895. The instrument must not be switched on unless a correctly. Resistance: 500 Ohm. Monthly Rentals Ship Today Order Online, Easy Checkout 2 Days Free. Our membership in the relevant international committees demonstrates our commitment to the industry. 3ctest EDS 20H Handheld Electrostatic Discharge Simulator, 20kV. 1 Function modules The NSG 435 simulator is modularly constructed from a number of function units that are all housed in a multi-part, molded shell. This DN is designed to be used with the NSG 437 or the NSG 438 ESD simulators. Teseq NSG 437 Electrostatic Discharge (ESD) Simulator Gun for GR-1089 & IEC 61000-4-2. NSG 437 generates pulses from 200 V to 30 kV, both in air- and contact-discharge operation. Rent and Buy Discharge Networks for the Teseq NSG series (NSG 435, NSG 437, & NSG 438), EM Test Dito, ESD3000 by EMC Partner. 00. The INA 4561 is an 100pF/1. 5k Ohm CR network for GT-30R / 06-00079B; Rental - ISO 10605 Automotive RC Module Package for Teseq NSG 438; EMC Partner ESD3000DM5 RC Module Set for RTCA/DO-160 &. The INA 438 is an 150pF/2kΩ for electrostatic discharge testing for ISO 10605 and many other automotive based standards. S. Our Catalog is a general source of information about course. Monthly Rentals Ship Today Order Online, Easy Checkout 2 Days Free. 00. Request A Quote. 6ohm to 50uH load inpedance. The whole range of parameter settings including NSG 6000A. . Built-in Activity Log. 英文名称： teseq， 产品编号： NSG437. Rent and Buy it today from the only authorized sale partner of Teseq ESD simulators in the United States. docx Datum drucken: 4. . The NSG 437 simulator is designed to sit comfortably in the operator’s hand, with current operating conditions constantly displayed and clearly visible. Capacitance: 100 pF. To adapt NSG 437 or 438 pistols to classics tripods as generally used for cameras. $1,095. Teseq NSG 437 Electrostatic Discharge (ESD) Simulator Gun for GR. 00. 8% in NSG-4T1, 87% in BALB/c-4T1) to be present in samples obtained through cardiac puncture. The 403-826 air discharge tip for the NSG 437 series & NSG 438 series of simulator allows for air discharge testing. Ergonomic design and advanced functionality. Customers Also Ordered. Department of Education. 00 . NSG 437 / 438 Basic set (see technical specifications) 3 ORDERING INFORMATION Discharge tip with 0. These can be ordered with purchases of. $895. (tripod not included) INA 4430. 00 Rental - 1 Month. 16 Hand / Metal Model ESD Compliance. . To get the details, what is the meaning/definition of the tag Virtual Network maybe this helps: . Description The NSG 437 simulator is designed to sit comfortably in the operator’s hand, with current operating conditions constantly displayed and clearly visible. The INA 4381 is an 150pF/2kΩ for electrostatic discharge testing for ISO 10605 and many other Automotive ESD testing. 1; Power Sources. The charge remover will fully discharge the EUT bringing it to the same reproducible state of discharge each time while reducing the time between tests. 30kV Air & Contact Discharge 150pF/330Ohms. $895. Teseq NSG 437. MD 102A; CTR 2; Harmonics & Flicker Analyzers. Transient Specialists is the only authorized sale partner of Teseq/EM Test ESD simulators and accessories in the United States. The Haefely ONYX 30 kV electrostatic discharge simulator is It is the most ergonomic ESD test gun without an additional base control unit that can be battery or mains operated. Teseq NSG 437 comprehensively fulfills virtually all international standard requirements. • NSG 452 - Population Health Nursing Concepts - RN to BSN • NSG 452 - Population Health Nursing Concepts ABSN • NSG 453 - Care Coordination & Transition. Rent Teseq NSG 438 30kV ESD Simulator Gun . Teseq NSG 437 Electrostatic Discharge (ESD) Simulator Gun for GR-1089 & IEC 61000-4-2 $895. 00. Teseq NSG 438 ESD Simulator or. Based on over 60 optional discharge networks, the NSG 437 can meet any of today’s automotive manufacturers’ standards. GTEM 250. NSG 437 comprehensively fulfills virtually all international standard requirements. NSG 437 already meets the proposed new requirements. Based on over 60 optional discharge networks, the NSG 437 can meet any of. 9 other products in the same category:The pistol-shaped Teseq (formerly Schaffner) NSG 435 ESD simulator for IEC 61000-4-2 is designed to sit comfortably in the operator’s hand, with current operating conditions constantly displayed and clearly visible. Switchable Bleedoff/Charge Remover. 5kΩ for electrostatic discharge testing for MIL-STD-750. . Add to compare. 7123. Teseq Teseq NSG 437 ESD Simulator System. 30kV Air & Contact Discharge Automotive Test System ; Ideal for ISO 10605 & IEC 61000-4-2 Test Solution (100V Steps). 29. 00. Work with our experts to sustain your critical applications. Students who are participating in a global or multicultural study experience (includes both domestic and international), enroll in NSG 437, an online or a face-to-face seminar (credit-bearing) that will allow students to thoughtfully examine both their experience and their chosen environment. Transient Specialists, conveniently located in the mid-west, also offers a variety of EMC test equipment rentals. NSG 437 comprehensively fulfills virtually all international standard requirements. NSG 437; NSG 438/NSG 438A; esd NX30 Series; Accessories. This Teseq ESD Gun. Add to cart. The NSG 437 ESD simulator is designed to sit comfortably in the operator’s hand, with operating conditions constantly displayed and accessible on a bright, clear color touch display. The NSG 437 ESD simulator is designed to sit comfortably in the operator’s hand, with operating conditions constantly displayed and accessible on a bright, clear color touch display. The NSG 435’s LCD panel is clearly visible at all times in the operating position and all controls are placed conveniently at the user’s fingertips. Haefely ONYX 30 kV ESD Test Gun . Noiseken ESS-2000 30kV ESD Simulator. . Teseq INA 4419 E-Field (Electric field) Simulating Adapter for NSG 437/NSG 438 Teseq NSG 437 and Teseq NSG 438 pistols. $895. . NSG 437 comprehensively fulfi lls virtually all international standard requirements. Air- and contact-discharge to 30 kV Color touch panel control Advanced. In-stock and available immediately. 静电放电模拟器NSG437. Monthly Rentals Ship Today Order Online, Easy Checkout 2 Days Free. The INA 4561 is an 100pF/1. Based on over 60 optional discharge networks, the NSG 437 can meet any of. 00. The Coupling Decoupling Network CDN HSS-2 is designed for convenient surge testing with 1. The simula- tor is simple, convenient and safe to use. This DN is designed to be used with the NSG 437 or the NSG 438 ESD simulators. Reportedly the first ESD pistol on the market with a color touch-screen display, the upgraded NSG 438 is easy to use and offers long battery life with over 30,000 discharges at 30 kV on a single battery charge. Rent Teseq NSG 438 30kV ESD Simulator. TESEQ (formerly Schaffner Test Systems) has announced the introduction of the NSG 437 handheld ESD Simulator. Air- and contact-discharge to 30 kV Color touch panel control Advanced. View largerTeseq NSG 437 Electrostatic Discharge (ESD) Simulator Gun for GR-1089 & IEC 61000-4-2 . Transient Generators (Surge, Burst) Ametek CTS offers high end combined or single function solutions for simulating Surge and Burst pulses for immunity testing which comply with international, national and manufacturers' standards including IEC/EN 61000-4-4, IEC/EN 61000-4-5, ANSI C62. 3ctest EDS 30T Electrostatic Discharge Simulator, 30kV. Some vehicle manufacturers have expanded upon these specifications – in most cases by making them more stringent. Transient Specialists is the only authorized sale partner of Teseq/EM Test ESD simulators and accessories in the United States. For each of the generator families a choice of different power line coupling networks are available. Teseq NSG 437 Electrostatic Discharge (ESD) Simulator Gun for GR-1089 & IEC 61000-4-2 . This is an overview of all of the Teseq ESD Guns. . Teseq NSG 437 Electrostatic Discharge (ESD) Simulator Gun for GR-1089 & IEC 61000-4-2 . Monthly Rentals (Most Popular) 3-Month Rentals; Weekly. Get rental or purchase price the Teseq (Schaffner) NSG 435 ESD simulator/gun that provides air(16. and ITU-T. Rent Teseq NSG 438 30kV ESD Simulator Gun . . More information: thanks to talented Teseq employee Sascha Tschumi for his great. Alternators produce a high-energy (load dump) pulse on a vehicle’s power system when the battery is disconnected. S. . The NSG 437 Auto is a variation on the popular 30kV Teseq series of ESD simulators/Guns. . NSG 437; NSG 438/NSG 438A; esd NX30 Series; Accessories. $495. 5kv) and contact(10kv) for testing to EN IEC 61000-4-2 & ANSI C63. 0 2 . $895. The Teseq NSG 437 Electrostatic Discharge (ESD) Simulator Gun for GR-1089 & IEC 61000-4-2 is designed to sit comfortably in the operator’s hand, with operating conditions constantly displayed and accessible on a bright, clear color touch display. 5KV. This DN is designed to be used with the NSG 437 or the NSG 438 ESD simulators. NSG 437 comprehensively fulfi lls virtually all international standard requirements. The NSG 3040’s modular architecture and industry standard interfaces allow it. 18 MB Table of Contents. Overview -. View larger. It contains electrical components that are necessary for this mode. The NSG 437 ESD simulator is designed to sit comfortably in the operator’s hand, with operating conditions constantly displayed a. Canadian Injured Workers Alliance (Injured Worker Groups in Canada) Helmets to Hardhats Local 437 Facebook Union. We provide a test solution from Teseq, the custom discharge networks which can be used with the NSG 437 and NSG 438. 16, RTCA/DO-160 and many more ESD immunity standards. NSG 437 comprehensively fulfills virtually all international standard requirements. Transient Specialists a leader in the industry now offers new sales of ESD Simulators including NSG 435, NSG 437, NSG 438, and Dito,The NSG 437 generates pulses from 200 V to 30 kV, in both air and contact discharge operation modes. NSG 437 comprehensively fulfills virtually all international standard requirements. Add to cart More. $895. $895. NSG 6000A. Up to 30kV output in both contact and air discharges. Haefely ONYX 16 kV ESD Generator Gun. Get ISO 17025 calibrations and compliant solutions to IEC 61000-4-2, MIL-STD-883, and ISO 10605. It comes standard with an ISO 17025 accredited. Microprocessor- All the functions are ”on-board”, including a pre-. Both measure and display true air breakdown voltages. Teseq ESD Guns Models. The normal remote trigger unit consists of a «triggerbox» and 5 m (197 “) of optical cable. 2021 Remplace : Filename : Quick Start and Safety Manual ESD FR. The built-in preamplifier matches the extremely low impedance of the loop to the measuring receiver. Teseq (Schaffner) 402-972 Replacement Air Discharge Tip for NSG 435 ESD Gun; Teseq INA 4411 Fast Risetime Test Tip for NSG 437/NSG 438 ESD Gun; Teseq INA 4417 ESD Tip with Multifunctional Banana Connector; Teseq (Schaffner) INA 4415 Flexible Test Tip Set for NSG 437/NSG 438; Haefely 4700527 Fast Rise Time Tip, 0. . $895. The Teseq NSG 1007 series is the mid range solution for harmonics and flicker as well as immunity testing according IEC 61000-4-13 and other IEC standards. Take advantage of two year warranty of parts and labor from Teseq & EM Test and quick deliveries. INA 417B - Opto-link to a PC. $990. Switzerland . Add to cart. NSG 437 comprehensively fulfills virtually all international standard requirements. The NSG 6000 consists of an integrated RF. 4153 Reinach BL1 . Air- and contact-discharge to 30 kV Color touch panel control Advanced. Rent the Teseq NSG 437 ESD simulator 30kv air and contact mode testing for MIL-STD-883 and other HBM requirements with INA4561 100pf/1500Ω network. 00 Rental - 1 Month. g. NSG 437 comprehensively fulfills virtually all international standard requirements. Air- and contact-discharge to 30 kV Color touch panel control Advanced. Rent Teseq NSG 438 30kV ESD Simulator Gun $990. Teseq NSG 438 - Buy & Rent 30kV ESD Simulator/Gun. 00. The Teseq NSG 438 ESD Simulator generates discharge pulses of 200 V to 30 kV, in both air discharge and contact discharge operation. The Teseq (Schaffner) INA 4591 Discharge Network 250 pF / 500 Ohm for NSG 437/438 is compatible with the Teseq NSG 438 ESD Simulator Gun. 00. NetWave 20 Series; NetWave 30 Series; NetWave 67 Series; NetWave 108 Series; NetWave 90 Series; NetWave 3 Series; NetWave 7 Series; ACS. Fast Quotes & Shipping. Activity log. 产品价格： 0NetWave 20 Series. NSG 435. 437 ESD Simulator. Rental Package IncludesAir and Contact Discharge Tips Output. NetWave 20 Series; NetWave 30 Series; NetWave 67 Series; NetWave 108 Series; NetWave 90 Series; NetWave 3 Series; NetWave 7 Series; ACS. Monthly Rentals Ship Today Order Online, Easy Checkout 2 Days Free. Expected. The NSG 437 offers air discharge or contact discharge outputs settable from 200 Volts. Advanced voltage-hold feature. $895. Even more convenient is the touch panel display of the NSG 437 and NSG 438 with keypad func -. $895. All testing is available from one output connector. Web access is a necessity. The NSG 438 generator is not a toy! It is a professional tool and belongs The NSG 437 Auto is a variation on the popular 30kV Teseq series of ESD simulators/Guns. We provide a test solution from Teseq, the custom discharge networks which can be used with the NSG 437 and NSG 438. Institutiona l Charge . The handgrip adapter is an integral part of this power supply unit. Operators can specify opening and closing. If you are obtaining the CE Mark or other general product compliance certification, this is. The whole range of parameter setting possibilities, including polarity selection, counter functions and breakdown detection, remains fully available up to the maximumThe NSG 437 ESD simulator also includes this unique, new feature. This tip will not work with the NSG 435 or other simulators. $895. NSG 437 comprehensively fulfills virtually all international standard requirements. . Manufacturer. 00. This DN is designed to be used with the NSG 437 or the NSG 438 ESD simulators. 30kV Air & Contact Discharge Test System. The NSG 435’s LCD panel is clearly visible at all times in the operating position and all controls are placed conveniently at the user’s fingertips. Battery lasts 30,000 discharges at 30kV. Additional inputs and outputs are located on the rear panel. The simulator is simple, convenient and safe to use. It also detects real or valid air- discharges, thereby avoiding misleading discharge counts. Teseq / Schaffner INA 414-2M Grounding cable with 470kOhm resistor at each end, 200cm. Including the previous and current versions, a comparison to the NSG 437 ESD gun and advanced. Add to cart. It is ideally suited for magnetic field measurements as required by several standards (e. The NSG 437 ESD simulator is designed to sit comfortably in the operator’s hand, with operating conditions constantly displayed and accessible on a bright, clear color touch display. easily for long duration test procedures. $895. . Meets and far exceeds the requirements in EN/IEC61000-4-2. MD 102A; CTR 2; Harmonics & Flicker Analyzers. . . NetWave 20 Series; NetWave 30 Series; NetWave 67 Series; NetWave 108 Series; NetWave 90 Series; NetWave 3 Series; NetWave 7 Series; ACS. Configured models contain the following attributes:The optical input for remote triggering is insensitive to external light sources. ESD Guns can refurbish your existing INA 405 battery pack. The switching parameters of the BS 200Nx are measured with the load connected. 00. The Teseq NSG 437 Electrostatic Discharge (ESD) Simulator Gun for GR-1089 & IEC 61000-4-2 is designed to sit comfortably in the operator’s hand, with operating conditions. . Nursing Practice, DNP: Clinical Nurse Specialist: Maternal- Infant. Ametek CTS electrostatic discharge (immunity) products include the NSG 435, NSG 437, NSG 438, Dito, and NX30. Nursing (School of) Nursing Practice, DNP. Based on over 60 optional discharge networks, the NSG 437 can meet any of. Login to your account Loading. Air- and contact-discharge to 30 kV Color touch panel control Advanced. Add to cart More. $895. Request A Quote Choose options. In Stock . 00. 00. e. Rent & Buy electrostatic discharge generators/test simulators (ESD Gun) including the NSG 435, NSG 437, ESD3000, MZ-15, and Dito from the Teseq & EM Test US Distributor. The whole range of parameter setting possibilities, including polarity selection, counter functions and breakdown detection, remains fully available up to the maximum discharge voltage. . Tripod support for NSG 437, 438. The NSG 437 ESD simulator is designed to sit comfortably in the operator’s hand, with operating conditions constantly displayed and accessible on a bright, clear color touch display. The NSG 437 ESD simulator is designed to sit comfortably in the operator’s hand, with operating conditions constantly displayed and accessible on a bright, clear. PCN 7-R s-1. Add to cart. Up to 30kV output in both contact and air discharges. NSG 437 . The simulator is simple, convenient and safe to use. . Schaffner / Teseq NSG 435 ESD Simulator for IEC 61000-4-2. The simulator is simple, convenient and safe to use. INA 4421 Carry-bag for the base unit. Teseq CDN 3425. Ametek CTS offers a wide variety of networks to couple on power (mains) lines. Monthly Rentals Ship Today Order Online, Easy Checkout 2 Days Free. Programmable discharge voltage 200 V to 16. The Teseq NSG 438A ESD Gun Simulator System has an elegant solution to discharge the EUT using a relay circuit which dissipates the residual voltage by connecting a 1 MΩ resistor from the EUT to ground for a controlled time segment. The NSG 437 ESD simulator is designed to sit comfortably in the operator’s hand, with operating conditions constantly displayed and accessible on a bright, clear color touch display. Designed to fulfill a host of. $595. Transient Specialists is the only authorized sale partner of Teseq/EM Test ESD simulators and accessories in the United State s. . Air- and contact-discharge to 30 kV Color touch panel control Advanced. Add to cart More. Charge remover (for NSG 438 and NSG 439 series only) INA 4421. NSG 437 comprehensively fulfills virtually all international standard requirements. no: 3/28/22 MJB . Then, while depressing the The NSG 438 is the flagship ESD simulator optimized for automotive testing. This tip will not work with the NSG 435 or other simulators. docx Date d'im-pression : 4. collection. Used Inquire. 00. Typically In Stock. 10 other products in the same category: Teseq INA4381 Automotive Discharge Network for ISO 10605 150pF/2kOhm;Introduction to LED Testing with nsg 437 esd simulator LEDs are becoming increasingly popular in the lighting industry due to their energy efficiency and long LED Testing With NSG 437 ESD Simulator: A Comprehensive Guide - Integrating Sphere | GoniophotometerTeseq NSG 437 ESD Simulator/Gun, 30kV Includes: Discharge Pistol, IEC 61000-4-2 330 Ohm/150pF High Voltage Network, Mains adapter / charging unit 80 – 240VAC, Ground cable, User manual. NSG 435; dito; 30 kV. Teseq NSG 438 - Buy & Rent 30kV ESD Simulator/Gun. Fast risetime test tip. NSG 437 Rent & Buy New - Teseq 30kV ESD Gun 150pf/330Ω. used. Ergonomic design and advanced functionality. Teseq INA 4420 H-Field (Magnetic field) ESD Simulating Adapter for NSG 437/NSG 438. Teseq NSG 437 Electrostatic Discharge (ESD) Simulator Gun for GR-1089 & IEC 61000-4-2 . This program has been approved by the registrar of the Private. The GTEM cell is a frequency extended variant of the traditional TEM cell. More info. NSG 437 Community Required Public/Community Health and Nursing Practice: Caring for Populations. 6-1ns RC. Our Catalog is a general source of information about course offerings, academic programs and requirements, expenses. $295. . Test Routines & Rental Networks Available. Haefely ONYX 16 kV ESD Generator Gun . The Teseq NSG 438 AUTO is a high end ESD simulator introduced by Schaffner in the 1990's to appeal 30kV ESD immunity needs and ISO 10605. Air- and Contact- Discharge: 1000 Volts - 20kV ±5% Rise time: 0. Add to cart. . $895. Ametek NSG 437 Quick Start Manual And Safety Instructions (17 pages) Brand: Ametek.