Agilent Technologies U2802A manual U2356A @ 0 C to 18 C and 28 C to 45 C

Page 69

Product Specifications

4

 

 

 

 

Thermocouple Measurements Accuracy

 

 

 

 

 

(U2356A @ 0 °C to 18 °C and 28 °C to 45 °C)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

ITS-90

 

Optimum

Without

 

50 points

500 points

 

T/C

Temperature

 

Measurement

 

 

 

averaging

 

averaging

averaging

 

Type

Range (°C)

 

Range(°C)

 

 

 

(± °C)

 

(± °C)

(± °C)

 

 

 

 

 

 

 

 

 

 

Low

High

 

Low

High

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

B

0

1820

 

1100

1820

6.1

 

3.1

2.4

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

400

1100

14.4

 

6.3

2.7

 

 

 

 

 

 

 

 

 

 

 

 

E

–270

1000

 

–150

1000

3.0

 

2.6

2.6

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

–200

–150

4.2

 

3.7

3.6

 

 

 

 

 

 

 

 

 

 

 

 

J

–210

1200

 

–150

1200

2.9

 

2.5

2.5

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

–210

–150

4.9

 

4.1

4.0

 

 

 

 

 

 

 

 

 

 

 

 

K

–270

1372

 

–100

1200

3.3

 

2.9

2.9

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

–200

–100

5.3

 

4.2

4.0

 

 

 

 

 

 

 

 

 

 

 

 

N

–270

1300

 

–100

1300

3.4

 

2.7

2.6

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

–200

–100

6.8

 

4.6

4.1

 

 

 

 

 

 

 

 

 

 

 

 

R

–50

1768

 

300

1760

6.2

 

3.7

3.2

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

–50

300

15.7

 

7.2

3.8

 

 

 

 

 

 

 

 

 

 

 

 

S

–50

1768

 

400

1760

6.4

 

4.0

3.4

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

–50

400

14.2

 

6.6

3.4

 

 

 

 

 

 

 

 

 

 

 

 

T

–270

400

 

–100

400

3.0

 

2.4

2.2

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

–200

–100

5.3

 

4.2

3.9

 

 

 

 

 

 

 

 

 

Table 4-3

U2802A measurement accuracy with U2356A, at 0 to 18 °C and 28 to 45 °C,

with different number of averaging points.

Agilent U2802A 31-Channel Thermocouple Input User’s Guide

53

Image 69
Contents Agilent U2802A 31-Channel Thermocouple Input Device U T I O N WA RN I N G Safety Information U2802A 31-Channel Thermocouple Input User’s Guide Regulatory Markings General Safety Information Do not dispose in domestic household waste Environmental Conditions This Guide November-2007 Regulatory Information for Australia/New Zealand XII Contents Calibration List of Figures List of Tables Getting Started Introduction to Agilent U2802A 31-Channel Thermocouple Input Product Outlook Product OverviewTop View Front ViewBottom View Side ViewTop View Front View Product DimensionsStandard Purchase Items Checklist Installations and Configurations Ii. If Agilent IO Libraries Suite 14.2 has Hard disk space 1 GB Check Your System RequirementsYou do not have the Agilent IO Libraries installed, or Check Your Pre-Installed IO Libraries SuiteIii. If Agilent IO Libraries Suite is not installed Getting Started Install the Agilent Measurement Manager Install the DAQ Hardware DriverGetting Started Agilent U2802A 31-Channel Thermocouple Input User’s Guide Getting Started Connect Your DAQ Device to the PC Hardware VerificationConnect Your U2802A to DAQ Launch Your Agilent Measurement Manager IVI-COM Drivers Choosing Instrument-Specific InterfaceChoosing Class-Compliant Interface IVI- COM Using Class-Compliant InterfaceProgramming Environments IVI-COM Driver InstallationGetting Started Agilent U2802A 31-Channel Thermocouple Input User’s Guide Getting Started Features and Functions Features Applications 1System overview of U2802A with DAQ System OverviewFunctionality of the System Theory of Operation3Functional block diagram for U2802A Functional Block DiagramAnalog input channel circuitry 4Functional block diagram for thermocouple mode in U2802A5Floating signal source configuration in U2802A Agilent U2802A 31-Channel Thermocouple Input User’s Guide Digital control Cold junction sensorTrigger, Counter, External Timebase, and Analog Output Open Thermocouple DetectionFeatures and Functions Pin Configurations and Assignments Pin Assignments Pin ConfigurationsPin Description Connector J71Pin Configurations and Assignments Connector J50 Pin Configurations and Assignments Pin Pin name Description Connector J60Rear panel pinout for Connector Connector Pinout3Connector 2 pin assignment for U2355A and U2356A Pin Configurations and Assignments Product Specifications Operating Environment General SpecificationsGeneral Characteristics Product CharacteristicsOther Features Accuracy on page 54 for calculation methodology System Accuracy SpecificationsWith different number of averaging points U2356A @ 0 C to 18 C and 28 C to 45 C Example Calculating System Accuracy= 0.02% × 33.102 mV = 6.62 µV = 6.62 µV ÷ 59 µV/C = 0.112 C System accuracy with thermocouple sensor error System accuracy without thermocouple sensor errorSystem Typical Performance Thermoelectric CharacteristicsTypical Error vs. Measurement Performance Making Accurate Temperature Measurements Product Specifications Calibration Calibration Calibration InformationZeroing Function Restore Factory Calibration Calibration Contact us