Temperature specifications – Rockwell Automation 1771-TCM,D17716.5.108 TEMPERATURE CONTROL MOD User Manual

Page 88

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Specifications

Appendix A

A-2

Temperature Specifications

Input Range

( l

bl )

±

105mV

p

g

(selectable)

Type B: 300 to 1800

o

C

(572 to 3272

o

F)

Type E: -270 to 1000

o

C (-454 to 1832

o

F)

Type J: -210 to 1200

o

C (-346 to 2192

o

F)

Type K: -270 to 1372

o

C (-454 to 2502

o

F)

Type R: -50 to 1768

o

C

(-58 to 3214

o

F)

Type S: -50 to 1768

o

C

(-58 to 3214

o

F)

Type T: -270 to 400

o

C (-454 to 752

o

F)

Maximum Input Resolution

1

3.3

µ

V/bit @ 15 bits with sign bit

Type E, J, K, T 0.1

°

C (0.2

°

F)

2

Type B, R, S: 0.3

o

C (0.6

o

F)

2

Default Display Resolution

0.1

°

C (0.1

°

F)

Temperature Scale

°

C (

°

F)

Input Impedance

> 10 M

Thermocouple Linearization

IPTSĆ68 standard, NBS MNĆ125

Cold Junction Compensation

0 to 70

°

C

±

0.25

°

C

Open Input Detection

upscale

Open TC Leakage Current

< 10 nA (maximum)

Time to Detect Open Input

5s (maximum)

Input Overvoltage Protection

140V ac rms continuous

Normal Mode Rejection (50/60Hz)

50dB / 60dB (minimum)

Common Mode Rejection (60Hz)

150dB (typical)

Offset Drift (maximum)

±

0.50

µ

V/

°

C

Gain Drift (maximum)

±

35ppm/

°

C

Input Bandwidth

9Hz

Update Time (8 loops)

1s

TPO Update Time (blockĆtransfer)

500ms (maximum)

TPO Update Time (singleĆtransfer)

20ms (maximum)

Settling Time to within

0.1% of Full Scale

125ms (maximum)

NonĆlinearity

0.02% of full range (maximum)

Accuracy with Calibration (includes

nonĆlinearity, gain, offset)

0.01% of full range @ 25

°

C (typical)

0.05% of full range @ 25

°

C (maximum)

Calibration Values

0.000 / 100.000mV

Underrange Threshold

-103.0mV

Overrange Threshold

+103.0mV

Rate Alarm Value

Minimum (0.04% FSR)

Maximum (50% FSR)

0.08mV / 0.9

°

C (1.6

°

F) per second

100mV / 1050

°

C (1890

°

F) per second

Scaling Points

Default Scaling Values

-100/+100mV

-100.00/+100.00

-300/+1800

°

C

-300.0/1800.0

-508/+3272

°

F

-508.0/3272.0

1

Maximum resolution is obtained by rescaling input data to counts.

2

These resolutions apply to the commonly used ranges for these thermocouples. See graphs.

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