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BNC-9920 Operating Instructions and Specifications

12

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Electromagnetic Compatibility

This product is designed to meet the requirements of the following standards of EMC for electrical 
equipment for measurement, control, and laboratory use:

EN 61326 EMC requirements; Minimum Immunity

EN 55011 Emissions; Group 1, Class A

CE, C-Tick, ICES, and FCC Part 15 Emissions; Class A

Note

For EMC compliance, operate this device with shielded cables.

CE Compliance

This product meets the essential requirements of applicable European Directives, as amended for 
CE marking, as follows:

2006/95/EC; Low-Voltage Directive (safety)

89/336/EEC; Electromagnetic Compatibility Directive (EMC)

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.

Environmental Management

NI is committed to designing and manufacturing products in an environmentally responsible manner. 
NI recognizes that eliminating certain hazardous substances from our products is beneficial to the 
environment and to NI customers.

For additional environmental information, refer to the 

NI and the Environment

 Web page at 

ni.com/environment

. This page contains the environmental regulations and directives with which 

NI complies, as well as other environmental information not included in this document.

Waste Electrical and Electronic Equipment (WEEE)

EU Customers

At the end of the product life cycle, all products 

must

 be sent to a WEEE recycling 

center. For more information about WEEE recycling centers, National Instruments WEEE initiatives, 
and compliance with WEEE Directive 2002/96/EC on Waste and Electronic Equipment, 
visit

ni.com/environment/weee

.

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RoHS

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National Instruments

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 (RoHS)

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National Instruments

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RoHS

ড়㾘ᗻֵᙃˈ䇋ⱏᔩ

ni.com/environment/rohs_china

DŽ

(For information about China RoHS compliance, go to 

ni.com/environment/rohs_china

.)

Summary of Contents for BNC-9920

Page 1: ...defined BNC connectors A function generator with the following outputs Frequency adjustable TTL compatible square wave Frequency and amplitude adjustable sine wave or triangle wave Quadrature encoder...

Page 2: ...as menu items and dialog box options Bold text also denotes parameter names italic Italic text denotes variables emphasis a cross reference or an introduction to a key concept Italic text also denote...

Page 3: ...rew Terminals 22 Quadrature Encoder Knob 23 Digital I O BNC Connector DIO 8 24 Power Indicator LED E L R T T S N I NA M U N O I A S T N _ Floating Source FS _ Ground Ref Source GS AO ANALOG OUTPUTS AN...

Page 4: ...the labels 4 Connect the power end of the BNC 9920 cable to the external power supply shipped with the CompactRIO Starter Kit The power indicator LED shown in Figure 1 lights If it does not light chec...

Page 5: ...e signal sources Measuring Floating Signals To measure floating signal sources move the corresponding switch below the BNC connector to the FS position In the floating source switch position the negat...

Page 6: ...programming mode unconnected channels can cause noise on other channels In order to avoid noisy thermocouple measurements move the BNC Temp Ref switch on the BNC 9920 to the Temp Ref position For more...

Page 7: ...always present at the TTL Square Wave BNC To adjust the frequency of the function generator select your frequency range using the Frequency Selection switch You can select 0 1 10 kHz 1 100 kHz or 13 1...

Page 8: ...n in Table 1 Using the Quadrature Encoder The BNC 9920 contains a mechanical quadrature encoder circuit that produces 96 pulses per encoder revolution Two outputs PULSES and UP DN are at the screw ter...

Page 9: ...ules Note Refer to the documents shipped with the C Series modules for specifications about analog and digital I O signals Analog Input Number of channels default 8 differential Field connections defa...

Page 10: ...requency range 100 Hz to 1 MHz Frequency adjust Through the Frequency Adjust knob Rise time 250 ns Fall time 50 ns Sine triangle wave Frequency range 100 Hz to 1 MHz Frequency adjust Through the Frequ...

Page 11: ...t 1 040 g 2 lb 4 7 oz I O connector 68 pin male SCSI II type BNC connectors 15 Screw terminal plugs 31 Environment Operating temperature 0 to 50 C Storage temperature 55 to 125 C Relative humidity 5 t...

Page 12: ...ck the appropriate link in the Certification column Environmental Management NI is committed to designing and manufacturing products in an environmentally responsible manner NI recognizes that elimina...

Page 13: ...support needs For telephone support in the United States create a service request at ni com support and follow the calling instructions or dial 512 795 8248 For telephone support outside the Untied S...

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