Hệ thống sourcemeter Keithley 2790-L Single-module System

Hệ thống sourcemeter Keithley 2790-L Single-module System

Mã:
2790-L
Thương hiệu:
Bảo hành:
N/A
Giá: Liên hệ
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Hotline: 0906.988.447

Liên hệ: Hồ Chí Minh

  • Điện thoại: (028).3977.8269
  • Email: sales@lidinco.com
  • Địa chỉ: 487 Cộng Hòa, Phường 15, Quận Tân Bình, TP. HCM

Liên hệ: Bắc Ninh, Hà Nội

  • Điện thoại: (0222).730.0180
  • Email: bn@lidinco.com
  • Địa chỉ: 184 Bình Than, Phường Võ Cường, TP. Bắc Ninh
  • Tư vấn Tư vấn kĩ thuật Miễn phí
  • Giao hàng Miễn phí vận chuyển Đơn hàng trên 3 triệu
Thông số kỹ thuật

Nguồn cấp: 100V / 120V / 220V / 240V +10%, -5%.  

Tần số dòng: 50/60Hz, automatically sensed at power-up  

Năng lượng tiêu thụ: 28vA  

Môi trường hoạt động: Specified for 0°C to 40°C. Specified to 60% R.H. at 35°C

Môi trường lưu trữ: -40°C to 70°C

Pin: Lithium battery-backed memory, 3 years @ 23°C.

EMC: Conforms to European Union Directive 89/336/EEC EN61326-1

Chế độ an toàn: Conforms to European Union Directive 73/23/EEC EN61010-1, CAT I

Sự dung động: MIL-PRF-28800F Class 3, Random  

Trọng lượng: 6,5kg

Hệ thống sourcemeter Keithley 2790-L Single-module System

Hệ thống sourcemeter để bàn Keithley 2790-L Single-module System for Low Voltage

The Model 2790  SourceMeter Switch System is a high voltage, multichannel resistance measurement solution that speeds and simplifies electrical checks of airbag inflators and a variety of other automotive electrical test applications. It is the only commercial instrument that combines all the sourcing, measurement, and signal routing capabilities required to measure insulation resistance and conductor continuity in one compact, affordable package. Through the use of plug-in source/switch modules, the Model 2790 provides programmable high voltage and low current sourc-ing, plus multichannel switching support. This unique combination of capabilities establishes a new standard for price and performance in airbag inflator and other test applications.

Measure Extreme Resistances with Constant Current or Constant Voltage

The Model 2790 uses the forced constant-current method to measure resistances less than 1kΩ. In this technique, the instrument sources a constant current (I) to the resistance and measures the resulting voltage (V). The amount of current sourced is programmable from 0–50mA. Resistance (R) is calculated (and displayed) using the known current and measured voltage (R = V/I). A 20mV dry circuit clamp is available at sourcing levels up to 1mA for preserving the oxide layers on connectors and other  components.

For the 1MΩ to 1GΩ resistance ranges, the forced constant-voltage method is used to measure high resistance. This technique optimizes settling speed and reduces noise, allowing faster, high quality insulation resistance measurements. In addition, by applying high voltages (50–500V), the Model 2790 stresses a dielectric while simultaneously measuring its insulation resistance.

In addition to the resistance measurement functions available through the plug-in source/switch modules, the Model 2790’s built-in DMM allows it to make a full range of high precision resistance measurements as well as AC/DC voltage and current, frequency, and temperature measurements. These DMM functions are available either through front panel jacks or through the addition of a Model 7702 40-channel scanner module. In addition to the shorts/open testing performed with the standard Model 7751, 7752, and 7753 switch/control modules, a wide range of supporting measurements can be made. These supporting measurements simplify creating integrated test solutions for hybrid applications, such as testing complex automotive seating systems, which increasingly combine airbag inflators and seatbelt pre- tensioners, seat heaters, switches, motors, etc.

Newly Enhanced Memory Pattern Test Sequencer

The memory pattern test sequencer allows the mainframe to store and execute pre-programmed test sequences for increased testing throughput. Test setups can be stored as unique memory locations and either recalled by number as needed or scanned in sequence to maximize the number of tests per unit time without command transfer delays due to communication or controller.

Match the System Configuration to the Application

The Model 2790 is available in a variety of configurations to match specific application requirements:

The Model 2790-H is a single-module system designed for both low current and high voltage ohms (10MΩ to 1GΩ) applications. This “base” system provides all the capabilities needed for electrical testing of either single- or dual-stage inflators in single position test stands (for example, test stands that test only one single- or dual-stage airbag at a time).
The Model 2790-A, which is similar to the Model 2790-H, enables high voltage ohms measurements down to 1MΩ.
The Model 2790-HH is configured for applications that require parallel testing or high voltage “soaking.” Like the Model 2790-H, it is designed for both low current and high voltage ohms applications and can test either single- or dual-stage inflators. However, with two plug-in modules, it also has the capacity to test two inflators at once, maximizing test throughput.
The Model 2790-HL is designed for applications where it is preferable to segregate high voltage sourcing/ohms measurement and low current sourcing/ohms measurement into two separate modules. This design was developed for use in combination testing applications, such as inflator electrical checks of safety steering wheel or seat assemblies that also include switch or other ancillary device tests.
The Model 2790-L is configured for low voltage source/ohms-only measurement applications, such as continuity-only testing of side/seat airbags and seatbelt pre-tensioners or other programmable I-source resistance applications in which high voltage resistance testing is not required but precise control of source current is.
With the addition of a Model 7702 40-channel differential multiplexer module (part of the Integra family of switch/measure solutions), the Model 2790-A, -H, or -L + Model 7702 opens the door to higher channel count applications, such as hi-pot/continuity testing of connectors, harnesses, and power distribution devices up to 500V (internally sourced) up to 40 channels.
Broad Range of Measurement Capabilities

The Model 2790’s built-in DMM can make a wide variety of general purpose measurements:

DC voltage measurements from 0.1µV to 1000V
AC voltage measurements from 0.1µV to 750V
DC current measurements from 10nA to 3A
AC current measurements from 1µA to 3A
2-wire resistance measurements from 100µΩ to 120MΩ
4-wire resistance measurements from 100µΩ to 120MΩ
Frequency measurements from 3Hz to 500kHz
Period measurements from 333ms to 2µs
Temperature measurements from –200°C to 630°C (thermistors and 4-wire RTDs)
Additional features of the Model 2790 mainframe include:

Setup storage—Up to four instrument setups can be saved and recalled.
Offset-compensated ohms—A two-measurement process for 4-wire ohms to cancel the effects of thermoelectric EMFs. Available for the 100Ω, 1kΩ, and 10kΩ ranges.
Math—m/X+b, mX+b, percent, and four special math functions provide convenient manipulation of raw readings.
Relative—Null offsets establish baseline values.
Ratio and channel average—Ratio and average calculations for two switching module channels (7702)
Buffer—Store up to 55,000 readings in the internal buffer
Limits—Two sets of high and low reading limits to test devices
Digital I/O port—Five digital limit test output lines to control external circuitry. An external trigger input can also be accessed at this port
Trigger Link—Separate connector with input and output signals.
Monitor—The Model 2790 can monitor a selected channel. A scan can be triggered to start when the monitor detects that a reading limit has been reached (7702).
Remote interface—Model 2790 can be controlled using the IEEE-488 interface (GPIB) or the RS-232 interface.

Example Application – Dual Stage Airbag Inflator Testing–One or Two

Example Application – 40-channel Wiring Harness Testing

Three source/switch plug-in modules provide the Model 2790 with programmable high voltage and low current sources, connection switching, and signal conditioning circuitry.

Applications:

  • Automotive airbag inflator/module electrical functional tests
  • Seatbelt pre-tensioner actuator/module functional electrical check
  • High speed, parallel soak, dual inflator, or dual test station electrical check
  • Pinched wire, high voltage, insulation resistance testing in automotive seats, avionics, etc.
  • Multipin connector/harness continuity and leakage resistance measurements
  • Multicontact/switch dry circuit continuity and leakage tests
  • Automotive power/fuse center continuity and leakage resistance characterization
  • PCB/PWB and general purpose short/open circuits testing

Phụ kiện

  • Model 7702 40-Ch, Diff Mux Module w/ Screw Terminals (for Models 2700, 2701, and 2750)
  • Model 7751 High Voltage Source/Switch Module for use with the Model 2790
  • Model 7752 Low Voltage Current Source Only Source/Switch Module for use with the Model 2790
  • Model 7753 1MOhm High Voltage Source/Switch Module
  • Model 7007-1 Double Shielded, Premium GPIB Interface Cable, 1m (3.3ft) (for GPIB Interconnect)
  • Model 7007-2 Double Shielded, Premium GPIB Interface Cable, 2m (6.6ft) (for GPIB Interconnect)
  • Model 7009-5 Shielded RS-232 Cable, 1.5m (5ft) (for Models 2000, 2010, 6517A, 6517B, Series 2400)
  • Model KPCI-488LPA IEEE-488.2 Interface Board for the PCI Bus
  • Model 4288-1 Single, Fixed Rack Mount Kit (for Models 428, 486, 487, 776, 2700, 2000 Series, 2182, 2300 Series, 2400 Series, 2500 Series, 6514, 6517A, 7001, 6430, 6485)
  • Model 4288-2 Dual, Fixed Rack Mount Kit (for Models 428, 486, 487, 776, 2000 Series, 2182, 2300 Series, 2400 Series, 6514, 6517A, 7001, 2700, 6430, 6485)
  • Model 8503 Trigger Link Cable, DIN-to-Dual BNC, 1m (3.3ft) (for Models 2000, 2010, Series 2400, 6517A, 6517B, Trigger Link Inputs)
  • Model 8681 Miniature, 4-Wire RTD, 100 Ohm (for Models 2001, 2002, 2010)

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