Products > Turnkey Acquisition Systems > Turnkey Portable Acquisition Systems > Model 6820  
Download PDF Download PDF     Printable Page     Email Email This Page     Save To Favorites Save To Favorites

Model 6820, Turnkey Voltage/IEPE/ICP Data Acquisition System



Features

  • 8, 16, 24 or 32 Channels IEPE/Voltage Input
  • 200kS/s 16-Bit Digitizer Per Channel
  • BNC Inputs
  • AC/DC Coupling
  • IRIG Time A, B or G
  • PI660 Turnkey Software Included
  • Shipping Container

Description

Series 6800 for portable applications is a ready-to-run, high performance measurement system that is DC powered for mobile applications. All connections are front mounted for easy installation in tight places or on the go. 6800 systems come equipped with a conditioner, amplifier, filter and digitizer. Each channel has a front mounted BNC connector for voltage or ICP/IEPE inputs. Individual channels have a differential ±10V input and can digitize and record data to 16-bit resolution with upper and lower programmable alarm capability that is checked each time the output is digitized. Solutions are available for providing digital outputs based on these alarm conditions.

Systems interface to a familiar Windows based Operator Workstation over USB where the included software, PI660, is used for setup, display and acquisition of measurement data. PI660 allows for acquisition and control of one or many 6800 systems and provides real time data display. Data can be displayed and recorded in any number of ways, creating a versatile system that can fit any application and can be easily expanded or customized, should test requirements change.

Multiple systems can be combined for larger and/or distributed installations, made capable with an onboard, distributed sample clock bus. Programming and data transfer are over USB which provides high data transfer rates with low, predictable latency. It interfaces to the USB port provided on most PC computers, including laptops for ultimate portability.

Data Redundancy is optionally available. A 2.5" HD (Model 6095) mounts on the USB controller board in each system and provides a redundant recording point for the DAS. In the unlikely event the Operator’s Workstation or DAS Software fails, data will continue to record and can be recovered from the system post test.

The Operator’s Workstation (6800-PCCOWU-LT) is the primary control and data recording point for the Series 6800 DAS. The PCCOWU-LT is typically a laptop, connected to the USB port and runs PI660 Data Acquisition Software for system setup, calibration, display, recording, distribution and export.






Overview  · Input  · Excitation/Transducer Power  · Amplifier  · Filter  · Digitizer  · Calibration  · Operation  · Data Format  · Data Interface  · Connections  · Mechanical  · Operators Workstation (PCCOWU-LT) (Optional)  · Ordering Information 

Overview

Measurement Type

4-20mA
ICP/IEPE

Insrumentation Amp

Voltage

Analog Bandwidth

100 kHz

Excitation/Transducer Power

+/-12V
+/-15V

24V

ICP

Filter

4-Pole
6-Pole

8-Pole

Sample Rate

Up to 200 kS/s


Input

Configuration

Differential, 2-wire with shield.

Input Type

Programmable AC or DC input. Input attenuator and current input are available.

Range

±2 mV to ±10 Volts.

Impedance (AC)

100k Ohms, shunted by 1,000 pF.

Impedance (DC)

50 Megohms, shunted by 500 pF.

Protection

±50 Volts differential, ±30 Volts common mode.


Excitation/Transducer Power

Current

2 to 20 mA. 6 mA is supplied unless otherwise specified.

Minimum Compliance

24 V

Verification

Short and open detection.

Voltage

±12 or ±15 Volts jumper selectable per channel, ±24 also available.


Amplifier

Gain

Programmable 1 to 5000, in 1, 2, 3, 5 steps, with ±0.05% accuracy

Gain Stability

±0.01%, ±0.005%/ºC.

Linearity (Amplifier)

±0.01% for Gains < 1,000, ±0.02% for gains > 1,000.

Common Mode

60 dB plus gain in dB to 110 dB, DC to 60 Hz.

CM Voltage

±10 V

Zero

Automatic to ±1 mV.

Zero Stability X1

±1 mV, ±0.2 mV/ºC

Zero Stability X1000

±5 mV, ±1 mV/ºC

Noise X1

0.2 mV RMS for 20 kHz bandwidth.

Noise X1000

2.8 mV RMS for 20 kHz bandwidth.

Bandwidth

DC to 100 kHz (-3 dB). 1 Hz to 100 kHz (-3 dB) in AC coupled mode.

Slew Rate

3.2 V/µS

Analog Output (Amplifier)

±10 Volts full scale, 20 mA. Programmable for wideband or filtered response.
Buffered Analog Output.


Filter

Type

Single frequency four-pole (standard) or 4 frequency four-pole or 2 frequency eight-pole Bessel.

Frequency

From 250 Hz to 50 kHz
Standard Four Pole: 10 kHz
4 Frequency Four Pole: 10 Hz, 1 kHz, 10 kHz, 20 kHz
2 Frequency Eight Pole: 2 kHz and 20 kHz.

Noise

1 mV peak, RTO.

Other

Other filter characteristics and cut offs are available.


Digitizer

Sample

±50 ns channel-to-channel time correlation.

Resolution

16-bits, two's complement output per channel.

Rate

Programmable up to 200 kS/s digitizer per channel.

Digitizer Linearity

±1-1/2 LSB (±0.004%)

Continuity

Monotonic to 15 bits.


Calibration

Voltage Substitution

Alternate input for external calibration source. Programmable 1, 0.1 and 0.01, attenuation with ±0.02% accuracy. Attenuator output may be connected to output bus for accuracy check.

Zero Calibration

Amplifier input disconnected and shorted for zero calibration.


Operation

Protocol

Control and data interface is USB 2.0

Software

Window's driver (Both 32 and 64-bit) provides high-level operating command set. Fully compatible with all implementations of PI660 operating software

Control Inputs

TTL inputs for Start, Stop and Trigger assert flags in the header of output data that initiate software control operations

Alarms

Warning and alarm buses may be independent or shared between enclosures and may initiate an output from a digital I/O type module.
Two alarms each with upper and lower limits that are programmable from negative to positive full scale. Limits checked on each ADC sample.


Data Format

Data Word

16 or 32-bits, 2's complement binary

Scan Table

Maximum format length is 65,536 samples

Sample Rates

Multiple sample rates consisting of the highest sample rate divided by binary numbers. Highest sample rate is programmable with 1 uS resolution


Data Interface

Output Rate

Processor dependent, typically over 5 million 16-bit samples/second

Latency

Processor and scan table dependent, typically less than 5 milliseconds

Clock Stability

100 ppm over temperature range


Connections

Calibration

15-Pin Type D mounted on rear panel. Mating connector supplied.

Control

15-Pin Type D mounted on rear panel. Mating connector supplied.

Synchronization

Sampling clock synchronization for multiple rack systems. RJ45 connector on controller board. Category 5, 2-meter cable supplied.

USB

2-meter cable supplied.


Mechanical

Power Input

10 to 20 VDC. (21 to 32 VDC available on special order)

Operating Temperature (Mechanical)

0 to +50 ºC

Humidity

95% without condensation

Width

View
13.4 in

Height

View
10.5 in

Depth

View
16.7 in

Weight

Approximately 30 pounds with all channel modules

Mounting

Occupies one slot in Series 6000 enclosures.

Connectors

Input connector is 50-pin Type D. Output is 15-pin Type D High Density. Mating connectors are supplied.

Temperature

0 to +50 ºC


Operators Workstation (PCCOWU-LT) (Optional)

Operating System

Windows 7, 64-Bit (others Windows OS configurations available)

Processor & Memory

Intel Core i5 or better. 2 GB RAM

Media

160 GB SSD or better and CD/DVD. Larger disk drives available.

Ethernet

Gigabit Ethernet

Display

15 in

Power

115 or 230 VAC, 47 to 63 Hz.

Operating Temperature

0 to +50 ºC

Size

Laptop (other configurations available)


Ordering Information 

Ordering Information

6820-16 - 16-Ch 12VDC Portable Voltage/IEPE/ICP DAS BNC
6820-24 - 24-Ch 12VDC Portable Voltage/IEPE/ICP DAS BNC

6820-32 - 32-Ch 12VDC Portable Voltage/IEPE/ICP DAS BNC

6820-8 - 8-Ch 12VDC Portable Voltage/IEPE/ICP DAS BNC

Accessories

6800-PCCOWU-LT - Operator’s Workstation, Laptop


 DOWNLOADS 

Models 6815, 6820 & 6840
(PDF, 570KB)


© 2015, Pacific Instruments, Inc. Catalog IndexPrivacy PolicySite Map