National Instruments Computer Drive USB 6008 6009 User Manual

USER GUIDE AND SPECIFICATIONS  
USB-6008/6009  
This guide describes how to use the National Instruments USB-6008/6009  
data acquisition (DAQ) devices and lists specifications.  
Introduction  
The NI USB-6008/6009 provides connection to eight analog input (AI)  
channels, two analog output (AO) channels, 12 digital input/output (DIO)  
channels, and a 32-bit counter with a full-speed USB interface.  
Note This manual revision updates naming conventions to reflect the conventions used in  
NI-DAQmx. Table 1 notes the correlation between the old and updated names.  
Table 1. Digital Output Driver Type Naming Conventions  
Hardware Functionality  
Open-drain  
NI-DAQmx Terminology  
Open collector  
Push-pull  
Active drive  
Table 2. Differences Between the USB-6008 and USB-6009  
Feature  
AI Resolution  
USB-6008  
USB-6009  
12 bits differential,  
11 bits single-ended  
14 bits differential,  
13 bits single-ended  
Maximum AI Sample Rate,  
Single Channel*  
10 kS/s  
48 kS/s  
Maximum AI Sample Rate,  
Multiple Channels (Aggregate)*  
10 kS/s  
42 kS/s  
DIO Configuration  
Open collector  
Open collector or active drive  
* Might be system dependent.  
 
 
Do not operate the device in an explosive atmosphere or where there may  
be flammable gases or fumes. If you must operate the device in such an  
environment, it must be in a suitably rated enclosure.  
If you need to clean the device, use a dry cloth. Make sure that the device  
is completely dry and free from contaminants before returning it to service.  
Operate the device only at or below Pollution Degree 2. Pollution is foreign  
matter in a solid, liquid, or gaseous state that can reduce dielectric strength  
or surface resistivity. The following is a description of pollution degrees:  
Pollution Degree 1 means no pollution or only dry, nonconductive  
pollution occurs. The pollution has no influence.  
Pollution Degree 2 means that only nonconductive pollution occurs in  
most cases. Occasionally, however, a temporary conductivity caused  
by condensation must be expected.  
Pollution Degree 3 means that conductive pollution occurs, or dry,  
nonconductive pollution occurs that becomes conductive due to  
condensation.  
You must insulate signal connections for the maximum voltage for which  
the device is rated. Do not exceed the maximum ratings for the device. Do  
not install wiring while the device is live with electrical signals. Do not  
remove or add connector blocks when power is connected to the system.  
Avoid contact between your body and the connector block signal when hot  
swapping modules. Remove power from signal lines before connecting  
them to or disconnecting them from the device.  
Operate the device at or below the Measurement Category I1. Measurement  
circuits are subjected to working voltages2 and transient stresses  
(overvoltage) from the circuit to which they are connected during  
measurement or test. Measurement categories establish standard impulse  
withstand voltage levels that commonly occur in electrical distribution  
systems. The following is a description of measurement categories:  
Measurement Category I is for measurements performed on circuits  
not directly connected to the electrical distribution system referred to  
as MAINS3 voltage. This category is for measurements of voltages  
from specially protected secondary circuits. Such voltage  
measurements include signal levels, special equipment, limited-energy  
parts of equipment, circuits powered by regulated low-voltage sources,  
and electronics.  
1
Measurement Category as defined in electrical safety standard IEC 61010-1. Measurement Category is also referred to as  
Installation Category.  
2
3
Working Voltage is the highest rms value of an AC or DC voltage that can occur across any particular insulation.  
MAINS is defined as a hazardous live electrical supply system that powers equipment. Suitably rated measuring circuits may  
be connected to the MAINS for measuring purposes.  
© National Instruments Corporation  
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USB-6008/6009 User Guide and Specifications  
 
Measurement Category II is for measurements performed on circuits  
directly connected to the electrical distribution system. This category  
refers to local-level electrical distribution, such as that provided by a  
standard wall outlet (for example, 115 V for U.S. or 230 V for Europe).  
Examples of Measurement Category II are measurements performed  
on household appliances, portable tools, and similar E Series devices.  
Measurement Category III is for measurements performed in the  
building installation at the distribution level. This category refers to  
measurements on hard-wired equipment such as equipment in fixed  
installations, distribution boards, and circuit breakers. Other examples  
are wiring, including cables, bus-bars, junction boxes, switches,  
socket-outlets in the fixed installation, and stationary motors with  
permanent connections to fixed installations.  
Measurement Category IV is for measurements performed at the  
primary electrical supply installation (<1,000 V). Examples include  
electricity meters and measurements on primary overcurrent  
protection devices and on ripple control units.  
Software  
Software support for the USB-6008/6009 for Windows 2000/XP is  
provided by NI-DAQmx.  
The NI-DAQmx CD contains example programs that you can use to get  
started programming with the USB-6008/6009. Refer to the NI-DAQmx for  
USB Devices Getting Started Guide, that shipped with your device and is  
also accessible from Start»All Programs»National Instruments»  
NI-DAQ for more information.  
Note For information about non-Windows operating system support, refer to  
ni.com/info and enter rddqld.  
VI Logger  
The NI-DAQmx CD includes VI Logger Lite which is an easy-to-use  
configuration-based tool specifically designed for data logging  
applications. The application is available at Start»All Programs»  
National Instruments»VI Logger.  
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Hardware  
The following block diagram shows key functional components of the  
USB-6008/6009.  
External  
Power  
Vbus  
+5 V/200 mA  
PFI 0  
Supply  
USB  
USB Microcontroller  
P1.<0..3>  
P0.<0..7>  
+2.5 V/CAL  
8 Channel  
12/14b ADC  
AI <0..7>  
12b DAC  
12b DAC  
AO 0  
AO 1  
Figure 3. Device Block Diagram  
© National Instruments Corporation  
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USB-6008/6009 User Guide and Specifications  
 
Setting Up Hardware  
Complete the following steps to set up the hardware:  
1. Install combicon screw terminal blocks by inserting them into the  
combicon jacks.  
Note The USB-6008/6009 kit ships with signal labels. You can apply the signal labels to  
the screw terminal blocks for easy signal identification.  
2. Refer to Table 3 and Figure 4 for label orientation and affix the  
provided signal labels to the screw terminal blocks. Until the signal  
labels are applied, you can insert the screw terminal blocks into either  
of the combicon jacks. Refer to Figure 4 for more information about  
signal label orientation.  
4
3
2
1
7
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Overlay Label with Pin Orientation Guides  
Combicon Jack  
3
4
Signal Labels  
USB Cable  
Figure 4. Signal Label Application Diagram  
Note Once you label the screw terminal blocks, you must only insert them into the  
matching combicon jack, as indicated by the overlay label on the USB-6008/6009 device.  
3. Connect the wiring to the appropriate screw terminals.  
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I/O Connector  
The USB-6008/6009 ships with one detachable screw terminal block for  
analog signals and one detachable screw terminal block for digital signals.  
These terminal blocks provide 16 connections that use 16 AWG to  
28 AWG wire.  
Table 3 lists the analog terminal assignments, and Table 4 lists the digital  
terminal assignments.  
Table 3. Analog Terminal Assignments  
Signal,  
Signal,  
Module  
Terminal  
Single-Ended Mode  
Differential Mode  
1
2
GND  
AI 0  
AI 4  
GND  
AI 1  
AI 5  
GND  
AI 2  
AI 6  
GND  
AI 3  
AI 7  
GND  
AO 0  
AO 1  
GND  
GND  
AI 0+  
AI 0–  
GND  
AI 1+  
AI 1–  
GND  
AI 2+  
AI 2–  
GND  
AI 3+  
AI 3–  
GND  
AO 0  
AO 1  
GND  
3
4
5
6
7
8
9
10  
11  
12  
13  
14  
15  
16  
© National Instruments Corporation  
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USB-6008/6009 User Guide and Specifications  
 
 
Table 4. Digital Terminal Assignments  
Module  
Terminal  
17  
Signal  
P0.0  
P0.1  
P0.2  
P0.3  
P0.4  
P0.5  
P0 6  
P0.7  
P1.0  
P1.1  
P1.2  
P1.3  
PFI 0  
+2.5 V  
+5 V  
GND  
18  
19  
20  
21  
22  
23  
24  
25  
26  
27  
28  
29  
30  
31  
32  
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Signal Descriptions  
Table 5 describes the signals available on the I/O connectors.  
Table 5. Signal Descriptions  
Signal Name  
Reference  
Direction  
Description  
GND  
Ground—The reference point for the  
single-ended AI measurements, bias  
current return point for differential mode  
measurements, AO voltages, digital  
signals at the I/O connector, +5 VDC  
supply, and the +2.5 VDC reference.  
AI <0..7>  
Varies  
Input  
Analog Input Channels 0 to 7—For  
single-ended measurements, each signal is  
an analog input voltage channel. For  
differential measurements, AI 0 and AI 4  
are the positive and negative inputs of  
differential analog input channel 0.  
The following signal pairs also form  
differential input channels:  
<AI 1, AI 5>, <AI 2, AI 6>, and  
<AI 3, AI 7>.  
AO 0  
AO 1  
GND  
GND  
GND  
Output  
Output  
Analog Channel 0 Output—Supplies the  
voltage output of AO channel 0.  
Analog Channel 1 Output—Supplies the  
voltage output of AO channel 1.  
P1.<0..3>  
P0.<0..7>  
Input or Output Digital I/O SignalsYou can  
individually configure each signal as an  
input or output.  
+2.5 V  
+5 V  
GND  
GND  
GND  
Output  
Output  
Input  
+2.5 V External Reference—Provides a  
reference for wrap-back testing.  
+5 V Power Source—Provides +5 V  
power up to 200 mA.  
PFI 0  
PFI 0—This pin is configurable as either a  
digital trigger or an event counter input.  
© National Instruments Corporation  
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USB-6008/6009 User Guide and Specifications  
 
 
Analog Input  
You can connect analog input signals to the USB-6008/6009 through the  
I/O connector. Refer to Table 5 for more information about connecting  
analog input signals.  
Analog Input Circuitry  
Figure 5 illustrates the analog input circuitry of the USB-6008/6009.  
+2.5 VREF  
MUX  
PGA  
ADC  
AI FIFO  
30.9 kΩ  
127 kΩ  
AI  
Input Range  
Selection  
39.2 kΩ  
Figure 5. Analog Input Circuitry  
MUX  
The USB 6008/6009 has one analog-to-digital converter (ADC). The  
multiplexer (MUX) routes one AI channel at a time to the PGA.  
PGA  
The progammable-gain amplifier provides input gains of 1, 2, 4, 5, 8, 10,  
16, or 20 when configured for differential measurements and gain of  
1 when configured for single-ended measurements. The PGA gain is  
automatically calculated based on the voltage range selected in the  
measurement application.  
A/D Converter  
The analog-to-digital converter (ADC) digitizes the AI signal by  
converting the analog voltage into a digital code.  
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AI FIFO  
The USB-6008/6009 can perform both single and multiple A/D  
conversions of a fixed or infinite number of samples. A first-in-first-out  
(FIFO) buffer holds data during AI acquisitions to ensure that no data  
is lost.  
Analog Input Modes  
You can configure the AI channels on the USB-6008/6009 to take  
single-ended or differential measurements. Refer to Table 5 for more  
information about I/O connections for single-ended or differential  
measurements.  
Connecting Differential Voltage Signals  
For differential signals, connect the positive lead of the signal to the AI+  
terminal, and the negative lead to the AI– terminal.  
AI+  
Voltage  
Source  
USB-6008/6009  
AI–  
Figure 6. Connecting a Differential Voltage Signal  
The differential input mode can measure 20 V signals in the 20 V range.  
However, the maximum voltage on any one pin is 10 V with respect to  
GND. For example, if AI 1 is +10 V and AI 5 is –10 V, then the  
measurement returned from the device is +20 V.  
© National Instruments Corporation  
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USB-6008/6009 User Guide and Specifications  
 
20  
15  
10  
5
AI 1  
0
AI 5  
Result  
–5  
–10  
–15  
–20  
Figure 7. Example of a Differential 20 V Measurement  
Connecting a signal greater than 10 V on either pin results in a clipped  
output.  
20  
15  
10  
5
AI 1  
0
–5  
AI 5  
Result  
–10  
–15  
–20  
Figure 8. Exceeding +10 V on AI Returns Clipped Output  
Connecting Reference Single-Ended Voltage Signals  
To connect reference single-ended voltage signals (RSE) to the  
USB-6008/6009, connect the positive voltage signal to the desired  
AI terminal, and the ground signal to a GND terminal.  
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AI  
Voltage  
Source  
USB-6008/6009  
GND  
Figure 9. Connecting a Reference Single-Ended Voltage Signal  
Digital Trigger  
When an AI task is defined, you can configure PFI 0 as a digital trigger  
input. When the digital trigger is enabled, the AI task waits for a rising edge  
on PFI 0 before starting the acquisition. To use ai/Start Trigger with a  
digital source, specify PFI 0 as the source and select rising edge.  
Analog Output  
The USB-6008/6009 has two independent AO channels that can generate  
outputs from 0–5 V. All updates of AO lines are software-timed.  
Analog Output Circuitry  
Figure 10 illustrates the analog output circuitry for the USB-6008/6009.  
+5 V  
REF(+) REF(–)  
12-Bit  
50 Ω  
Output  
Buffer  
AO  
DAC  
GND  
Figure 10. Analog Output Circuitry  
DACs  
Digital-to-analog converts (DACs) convert digital codes to analog  
voltages.  
© National Instruments Corporation  
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USB-6008/6009 User Guide and Specifications  
 
 
Connecting Analog Output Loads  
To connect loads to the USB-6008/6009, connect the positive lead of the  
load to the AO terminal, and connect the ground of the load to a GND  
terminal.  
AO  
Load  
USB-6008/6009  
GND  
Figure 11. Connecting a Load  
Minimizing Glitches on the Output Signal  
When you use a DAC to generate a waveform, you may observe glitches in  
the output signal. These glitches are normal; when a DAQ switches from  
one voltage to another, it produces glitches due to released charges. The  
largest glitches occur when the most significant bit of the DAC code  
changes. You can build a low-pass deglitching filter to remove some of  
these glitches, depending on the frequency and nature of the output signal.  
Refer to ni.com/support for more information about minimizing  
glitches.  
Digital I/O  
The USB-6008/6009 has 12 digital lines, P0.<0..7> and P1.<0..3>, which  
comprise the DIO port. GND is the ground-reference signal for the DIO  
port. You can individually program all lines as inputs or outputs.  
Digital I/O Circuitry  
Figure 12 shows P0.<0..7> connected to example signals configured as  
digital inputs and digital outputs. You can configure P1.<0..3> similarly.  
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+5 V  
1
LED  
P0.0  
P0.1  
P0.2  
P0.3  
P0.4  
P0.5  
P0.6  
P0.7  
LED  
2
3
4
+5 V  
TTL Signal  
Switch  
GND  
I/O Connector  
1
2
3
4
P0.0 configured as an open collector digital output driving a LED  
P0.2 configured as a active drive digital output driving a LED  
P0.4 configured as a digital input receiving a TTL signal from a gated invertor  
P0.7 configured as a digital input receiving a 0 V or 5 V signal from a switch  
Figure 12. Example of Connecting a Load  
Caution Exceeding the maximum input voltage ratings or maximum output ratings, which  
are listed in the Specifications, can damage the DAQ device and the computer. National  
Instruments is not liable for any damage resulting from such signal connections.  
Source/Sink Information  
The default configuration of the USB-6008/6009 DIO ports is open  
collector, allowing 5 V operation, with an onboard 4.7 kpull-up resistor.  
An external, user-provided, pull-up resistor can be added to increase the  
source current drive up to a 8.5 mA limit per line as shown in Figure 13.  
The USB-6009 ports can also be configured as active drive using the  
DAQmx API, allowing 3.3 V operation with a source/sink current limit of  
8.5 mA. Refer to the NI-DAQmx Help for more information about how to  
set the DIO configuration.  
© National Instruments Corporation  
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USB-6008/6009 User Guide and Specifications  
 
 
USB-6008/6009  
+5 V  
+5 V  
P0.0  
Re  
Rp  
4.7 KOnboard Resistor  
External  
Pull-up  
Resistor  
Port Pad  
Rl  
Load  
GND  
A
Figure 13. Example of Connecting External User-Provided Resistor  
Complete the following steps to determine the value of the user-provided  
pull-up resistor:  
1. Place an ammeter in series with the load.  
2. Place a variable resistor between the digital output line and the +5 V.  
3. Adjust the variable resistor until the ammeter current reads as the  
intended current. The intended current must be less than 8.5 mA.  
4. Remove the ammeter and variable resistor from your circuit.  
5. Measure the resistance of the variable resistor. The measured  
resistance is the ideal value of the pull-up resistor.  
6. Select a static resistor value for your pull-up resistor that is greater than  
or equal to the ideal resistance.  
7. Re-connect the load circuit and the pull-up resistor.  
I/O Protection  
To protect the USB-6008/6009 against overvoltage, undervoltage, and  
overcurrent conditions, as well as ESD events, you should avoid these fault  
conditions by using the following guidelines:  
If you configure a DIO line as an output, do not connect it to any  
external signal source, ground signal, or power supply.  
If you configure a DIO line as an output, understand the current  
requirements of the load connected to these signals. Do not exceed the  
specified current output limits of the DAQ device.  
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National Instruments has several signal conditioning solutions for  
digital applications requiring high current drive.  
If you configure a DIO line as an input, do not drive the line with  
voltages outside of its normal operating range. The DIO lines have a  
smaller operating range than the AI signals.  
Treat the DAQ device as you would treat any static sensitive device.  
Always properly ground yourself and the equipment when handling  
the DAQ device or connecting to it.  
Power-On States  
Static DIO  
At system startup and reset, the hardware sets all DIO lines to  
high-impedance inputs. The DAQ device does not drive the signal high or  
low. Each line has a weak pull-up resistor connected to it.  
Each of the USB-6008/6009 DIO lines can be used as a static DI or DO  
line. You can use static DIO lines to monitor or control digital signals. All  
samples of static DI lines and updates of DO lines are software-timed.  
You can configure PFI 0 as a source for a gated invertor counter input edge  
count task. In this mode, falling-edge events are counted using a 32-bit  
counter. For more information about event timing requirements, refer to the  
Specifications section.  
Reference and Power Sources  
The USB-6008/6009 creates an external reference and supplies a power  
source.  
+2.5 External References  
The USB-6008/6009 creates a high-purity reference voltage supply for  
the ADC using a multi-state regulator, amplifier, and filter circuit. The  
resulting +2.5 V reference voltage can be used as a signal for self test.  
+5 V Power Source  
The USB-6008/6009 supplies a 5 V, 200 mA output. This source can be  
used to power external components.  
Note While the device is in USB suspend, the output is disabled.  
© National Instruments Corporation  
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USB-6008/6009 User Guide and Specifications  
 
Specifications  
The following specifications are typical at 25 °C, unless otherwise noted.  
Converter type ........................................Successive approximation  
Analog Input  
Analog inputs..........................................8 single-ended, 4 differential,  
software selectable  
Input resolution  
USB-6008........................................12 bits differential,  
11 bits single-ended  
USB-6009........................................14 bits differential,  
13 bits single-ended  
Max sampling rate1  
Single channel  
USB-6008.................................10 kS/s  
USB-6009.................................48 kS/s  
Multiple channels (aggregate)  
USB-6008.................................10 kS/s  
USB-6009.................................42 kS/s  
AI FIFO ..................................................512 bytes  
Timing resolution ...................................41.67 ns (24 MHz timebase)  
Timing accuracy .....................................100 ppm of actual sample rate  
Input range  
Single-ended.................................... 10 V  
Differential ...................................... 20 V, 10 V, 5 V, 4 V,  
2.5 V, 2 V, 1.25 V, 1 V  
Working voltage ..................................... 10 V  
Input impedance .....................................144 kΩ  
Overvoltage protection ........................... 35  
1
Might be system dependent.  
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Trigger source ........................................ Software or external digital  
trigger  
System noise  
USB-6008, differential.................... 1.47 mVrms  
USB-6009, single-ended................. 2.93 mVrms  
USB-6009, differential.................... 0.37 mVrms  
USB-6009, single-ended................. 0.73 mVrms  
Absolute accuracy at full scale, single ended  
Typical at 25 °C  
(mV)  
Maximum over Temperature  
(mV)  
Range  
+10  
14.7  
138  
Absolute accuracy at full scale, differential1  
Typical at 25 °C  
(mV)  
Maximum over Temperature  
Range  
+20  
+10  
+5  
(mV)  
14.7  
7.73  
4.28  
3.59  
2.56  
2.21  
1.70  
1.53  
138  
84.8  
58.4  
53.1  
45.1  
42.5  
38.9  
37.5  
+4  
+2.5  
+2  
+1.25  
+1  
1 Input voltages may not exceed the working voltage range.  
Analog Output  
Converter type........................................ Successive approximation  
Analog outputs ....................................... 2  
Output resolution.................................... 12 bits  
Maximum update rate ............................ 150 Hz, software-timed  
Output range........................................... 0 to +5 V  
Output impedance .................................. 50 Ω  
© National Instruments Corporation  
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USB-6008/6009 User Guide and Specifications  
 
Output current drive................................5 mA  
Power-on state ........................................0 V  
Slew rate .................................................1 V/µs  
Short circuit current................................50 mA  
Absolute accuracy (no load)...................7 mV typical, 36.4 mV maximum  
at full scale  
Digital I/O  
Digital I/O  
P0.<0..7> .........................................8 lines  
PI.<0..3>..........................................4 lines  
Direction control.....................................Each channel individually  
programmable as input or output  
Output driver type  
USB-6008........................................Open collector (open-drain)  
USB-6009........................................Each channel individually  
programmable as active drive  
(push-pull) or open collector  
(open-drain)  
Compatibility..........................................TTL, LVTTL, CMOS  
Absolute maximum voltage range..........–0.5 to 5.8 V with respect to GND  
Pull-up resistor........................................4.7 kto 5 V  
Power-on state ........................................Input (high impedance)  
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Digital logic levels  
Level  
Min  
Max  
Units  
Input low voltage  
Input high voltage  
Input leakage current  
–0.3  
2.0  
0.8  
5.8  
50  
V
V
µA  
Output low voltage (I = 8.5 mA)  
Output high voltage  
0.8  
V
Active drive (push-pull), I = –8.5mA  
Open collector (open-drain), I = –0.6mA, nominal  
Open collector (open-drain), I = –8.5mA, with external pull-up  
resistor  
2.0  
2.0  
2.0  
3.5  
5.0  
V
V
V
External Voltage  
+5 V output (200 mA maximum) .......... +5 V typical, +4.85 V minimum  
+2.5 V output (1 mA maximum) ........... +2.5 V typical  
+2.5 V accuracy ..................................... 0.25% max  
Reference temperature drift ................... 50 ppm/°C max  
Counter  
Number of counters................................ 1  
Resolution .............................................. 32 bits  
Counter measurements........................... Edge counting (falling-edge)  
Pull-up resistor ....................................... 4.7 kto 5 V  
Maximum input frequency..................... 5 MHz  
Minimum high pulse width.................... 100 ns  
Minimum low pulse width ..................... 100 ns  
Input high voltage .................................. 2.0 V  
Input low voltage ................................... 0.8 V  
Bus Interface  
USB specification .................................. USB 2.0 full-speed  
USB bus speed ....................................... 12 Mb/s  
© National Instruments Corporation  
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USB-6008/6009 User Guide and Specifications  
 
Power Requirements  
USB  
4.10 to 5.25 VDC.............................80 mA typical, 500 mA max  
USB suspend ...................................300 µA typical, 500 µA max  
Physical Characteristics  
If you need to clean the module, wipe it with a dry towel.  
Dimensions  
Without connectors..........................6.35 cm × 8.51 cm × 2.31 cm  
(2.50 in. × 3.35 in. × 0.91 in.)  
With connectors...............................8.18 cm × 8.51 cm × 2.31 cm  
(3.22 in. × 3.35 in. × 0.91 in.)  
I/O connectors.........................................USB series B receptacle,  
(2) 16 position terminal block  
plug headers  
Weight  
With connectors...............................84 g (3 oz)  
Without connectors..........................54 g (21 oz)  
Screw-terminal wiring ............................16 to 28 AWG  
Torque for screw terminals.....................0.22 to 0.25 N · m  
(2.0 to 2.2 lb · in.)  
Safety  
Standards  
The USB-6008/6009 is designed to meet the requirements of the following  
standards of safety for electrical equipment for measurement, control, and  
laboratory use:  
IEC 61010-1, EN 61010-1  
UL 61010-1  
CAN/CSA-C22.2 No. 61010-1  
Note For UL and other safety certifications, refer to the product label, or visit  
ni.com/certification, search by model number or product line, and click the  
appropriate link in the Certification column.  
USB-6008/6009 User Guide and Specifications  
22  
ni.com  
 
Voltages  
Connect only voltages that are within these limits.  
Channel-to-GND.................................... ±30 V max,  
Measurement Category I  
Measurement Category I is for measurements performed on circuits not  
directly connected to the electrical distribution system referred to as  
MAINS voltage. MAINS is a hazardous live electrical supply system that  
powers equipment. This category is for measurements of voltages from  
specially protected secondary circuits. Such voltage measurements include  
signal levels, special equipment, limited-energy parts of equipment,  
circuits powered by regulated low-voltage sources, and electronics.  
Caution Do not use this module for connection to signals or for measurements within  
Measurement Categories II, III, or IV.  
Hazardous Locations  
The USB-6008/6009 are not certified for use in hazardous locations.  
Environmental  
The USB-6008/6009 device is intended for indoor use only.  
Operating temperature  
(IEC 60068-2-1 and IEC 60068-2-2)..... 0 to 55 °C  
Operating humidity  
(IEC 60068-2-56)................................... 10 to 90% RH, noncondensing  
Maximum altitude.................................. 2,000 m (at 25°C ambient  
temperature)  
Storage temperature  
(IEC 60068-2-1 and IEC 60068-2-2)..... –40 to 85 °C  
Storage humidity  
(IEC 60068-2-56) .................................. 5 to 90% RH, noncondensing  
Pollution Degree (IEC 60664) ............... 2  
© National Instruments Corporation  
23  
USB-6008/6009 User Guide and Specifications  
 
Electromagnetic Compatibility  
Emissions................................................EN 55011 Class A at 10 m  
FCC Part 15A above 1 GHz  
Immunity ................................................Industrial levels per  
EN 61326:1997 + A2:2001,  
Table 1  
EMC/EMI ...............................................CE, C-Tick, and FCC Part 15  
(Class A) Compliant  
Note The USB-6008/6009 may experience temporary variations in analog input readings  
when exposed to radiated and conducted RF noise. The device returns to normal operation  
after RF exposure is removed.  
CE Compliance  
This product meets the essential requirements of applicable European  
Directives, as amended for CE marking, as follows:  
Low-Voltage Directive (safety)..............73/23/EEC  
Electromagnetic Compatibility  
Directive (EMC).....................................89/336/EEC  
Note Refer to the Declaration of Conformity (DoC) for this product for any additional  
regulatory compliance information. To obtain the DoC for this product, visit  
ni.com/certification, search by model number or product line, and click the  
appropriate link in the Certification column.  
Where to Go for Support  
The National Instruments Web site is your complete resource for technical  
support. At ni.com/support you have access to everything from  
troubleshooting and application development self-help resources to email  
and phone assistance from NI Application Engineers.  
A Declaration of Conformity (DoC) is our claim of compliance with the  
Council of the European Communities using the manufacturer’s  
declaration of conformity. This system affords the user protection for  
electronic compatibility (EMC) and product safety. You can obtain the DoC  
for your product by visiting ni.com/certification. If your product  
supports calibration, you can obtain the calibration certificate for your  
product at ni.com/calibration.  
USB-6008/6009 User Guide and Specifications  
24  
ni.com  
 
National Instruments corporate headquarters is located at  
11500 North Mopac Expressway, Austin, Texas, 78759-3504.  
National Instruments also has offices located around the world to help  
address your support needs. For telephone support in the United States,  
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National Instruments, NI, ni.com, and LabVIEW are trademarks of National Instruments Corporation.  
Refer to the Terms of Use section on ni.com/legal for more information about National  
Instruments trademarks. Other product and company names mentioned herein are trademarks or trade  
names of their respective companies. For patents covering National Instruments products, refer to the  
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© 2004–2005 National Instruments Corporation. All rights reserved.  
371303E-01  
Jul05  
 

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