Impulse SCM7B37 Manuel d'utilisateur télécharger pdf (Page 2)

SCM7B

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Isolated Process Control Signal Conditioning Products

SCM7B

Specifications

Input

Signal Range Thermocouple

(1)

(See Ordering Information)

Bias Current -30nA

Resistance

Normal 50MΩ

Power Off 30kΩ min

Overload 30kΩ min

Protection

Continuous 120Vrms max

Transient ANSI/IEEE C37.90.1

Output

Signal Range

(2) 

Effective Available Power

(2)

40mW

Resistance <1Ω

Protection Continuous Short-to-Ground

Voltage/Current Limit ±12V, ±14mA

CMV (Input-to-Output)

Continuous 1500Vrms

Transient ANSI/IEEE C37.90.1

CMRR (50 or 60Hz) 160dB

Accuracy

(3)

±0.03% Span typical,

±0.1% Span max

Nonlinearity

(4)

See Ordering Information

Stability (-40°C to +85°C)

Gain ±35ppm/°C

Input Offset ±0.5µV/°C

Zero Suppression ±0.005%(V

)

(5)

/°C

Output Offset ±0.002% Span/°C

Noise

Peak at 5MHz B/W 500µV

RMS at 10Hz to 100kHz B/W 250µV

Peak at 0.1Hz to 10Hz B/W 1µV RTI

CJC Accuracy

(6)

, ±0.25°C typ, ±1°C max

+5°C to +45°C ambient

Open Input Response Upscale

Open Input Detection Time <10s

Frequency and Time Response

Bandwidth, -3dB 3Hz

NMR (50/60Hz) 80/85dB

Step Response, 90% Span 165ms

Supply Voltage 14 to 35VDC

Current

(2)

12mA

Sensitivity ±0.0001%/%V

Mechanical Dimensions 2.13" x 1.705" x 0.605" max

(h)(w)(d) 54.1mm x 43.3mm x 15.4mm max

Environmental

Operating Temperature Range -40°C to +85°C

ATEX Group II, Category 3 -20°C to +40°C

Storage Temperature Range -40°C to +85°C

Relative Humidity 0 to 95% noncondensing

Emissions EN61000-6-4 ISM, Group 1

Radiated, Conducted Class A

Immunity EN61000-6-2 ISM, Group 1

R F Performance A ±0.5% Span Error

ESD, EFT, Surge, Voltage Dips Performance B

Module

SCM7B37

Typical at 25°C and +24VDC

NOTES:

(1) Thermocouple characteristics per NIST monograph 175, ITS-90.

(2) Output Range and Supply Current specifications are based on minimum output load resistance.

Minimum output load resistance is calculated by V

OUT

, where P

is the output Effective Available

Power that guarantees output range, accuracy, and linearity specifications.

(3) Accuracy includes the effects of repeatability, hysteresis, and linearity.

(4) Nonlinearity is calculated using the best-fit straight line method.

(5) V

is the nominal input voltage that results in a 0V output.

(6) The CJC sensor accuracy should be added to the module accuracy and thermocouple accuracy to

compute the overall measurement accuracy.



Thermocouple Alloy Combinations

Type Material

J Iron vs. Copper-Nickel

K Nickel-Chromium vs. Nickel-Aluminum

T Copper vs. Copper-Nickel

E Nickel-Chromium vs. Copper-Nickel

R Platinum-13% Rhodium vs. Platinum

S Platinum-10% Rhodium vs. Platinum

B Platinum-30% Rhodium vs. Platinum-6% Rhodium

Standards: DIN IEC 584, ANSI MC96-1-82, JIS C 1602-1981

Output Range Part No. Suffix Example

+1 to +5V NONE SCM7B37J-01

0 to +5V A SCM7B37J-01A

0 to +10V D SCM7B37J-01D

Ordering Information

Model



Input Range

Accuracy

(3)

Typical

SCM7B37J-01 100°C to +760°C ±0.03% ±0.1% ±0.01% ±0.02%

(-148°F to +1400°F) (0.26°C) (0.86°C) (0.09°C) (0.17°C)

SCM7B37J-10 0°C to +200°C ±0.03% ±0.1% ±0.01% ±0.02%

(+32°F to +392°F) (0.06°C) (0.20°C) (0.02°C) (0.04°C)

SCM7B37J-11 0°C to +400°C ±0.03% ±0.1% ±0.01% ±0.02%

(+32°F to +752°F) (0.12°C) (0.40°C) (0.04°C) (0.08°C)

SCM7B37J-12 0°C to +600°C ±0.03% ±0.1% ±0.01% ±0.02%

(+32°F to +1112°F) (0.18°C) (0.60°C) (0.06°C) (0.12°C)

SCM7B37J-13 300°C to +600°C ±0.03% ±0.1% ±0.01% ±0.02%

(572°F to +1112°F) (0.09°C) (0.30°C) (0.03°C) (0.24°C)

SCM7B37K-02 -100°C to +1350°C ±0.03% ±0.1% ±0.01% ±0.02%

(-148°F to +2462°F) (0.44°C) (1.45°C) (0.15°C) (0.29°C)

SCM7B37K-20 0°C to +300°C ±0.03% ±0.1% ±0.01% ±0.02%

(+32°F to +572°F) (0.09°C) (0.30°C) (0.03°C) (0.06°C)

SCM7B37K-21 0°C to +600°C ±0.03% ±0.1% ±0.01% ±0.02%

(+32°F to +1112°F) (0.18°C) (0.60°C) (0.06°C) (0.12°C)

SCM7B37K-22 0°C to +1200°C ±0.03% ±0.1% ±0.01% ±0.02%

(32°F to +2192°F) (0.36°C) (1.20°C) (0.12°C) (0.24°C)

SCM7B37K-23 600°C to +1200°C ±0.03% ±0.1% ±0.01% ±0.02%

(+1112°F to +2192°F) (0.18°C) (0.60°C) (0.06°C) (0.12°C)

SCM7B37T-03 -100°C to +400°C ±0.03% ±0.1% ±0.01% ±0.02%

(-148°F to +752°F) (0.15°C) (0.50°C) (0.05°C) (0.10°C)

SCM7B37E-04 0°C to +900°C ±0.03% ±0.1% ±0.01% ±0.02%

(+32°F to +1652°F) (0.27°C) (0.90°C) (0.09°C) (0.18°C)

SCM7B37R-05 0°C to +1750°C ±0.03% ±0.1% ±0.01% ±0.02%

(+32°F to +3182°F) (0.53°C) (1.75°C) (0.18°C) (0.35°C)

SCM7B37S-06 0°C to +1750°C ±0.03% ±0.1% ±0.01% ±0.02%

(+32°F to +3182°F) (0.53°C) (1.75°C) (0.18°C) (0.35°C)

SCM7B37B-07 0°C to +1800°C ±0.03% ±0.1% ±0.01% ±0.02%

(+32°F to +3272°F) (0.54°C) (1.80°C) (0.18°C) (0.36°C)

Nonlinearity

(4)

Typical Max Max





Output Ranges Available

1 2

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Impulse SCM7B37 Manuel d'utilisateur Page 2

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