Impulse SCM7B47 Manual de usuario descargar pdf (Pagina 2)

SCM7B

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Isolated Process Control Signal Conditioning Products

SCM7B

Specifications

Input

Signal Range Thermocouple

(1)

(See Ordering Information)

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)

(See Ordering Information)

Stability (-40°C to +85°C)

Gain ±40ppm/°C

Input Offset 0.5µV/°C

Zero Suppression ±0.005%(V

)

(4)

/°C

Output Offset ±0.002% Span/°C

Noise

Peak at 5MHz B/W 1mV

RMS at 10Hz to 100kHz B/W 500µV

Peak at 0.1Hz to 10Hz B/W 1µV RTI

CJC Accuracy

(5)

, ±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)

16mA

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

SCM7B47

Typical at 25°C and +24VDC



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

N Nickel-14.2% Chromium-1.4% Silicon vs. Nickel-4.4%

Silicon- 0.1% Magnesium

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

Output Range Part No. Suffix Example

+1 to +5V NONE SCM7B47J-01

0 to +5V A SCM7B47J-01A

0 to +10V D SCM7B47J-01D

Ordering Information

Model



Input Range

Accuracy

(3)(5)

Typical

SCM7B47J-01 0°C to +760°C ±0.11% Span ±0.32% Span

(+32°F to +1400°F) (0.84°C) (3.43°C)

SCM7B47J-02 -100°C to +300°C ±0.10% Span ±0.30% Span

(-148°F to +572°F) (0.40°C) (1.20°C)

SCM7B47K-03 0°C to +1300°C ±0.11% Span ±0.32% Span

(+32°F to +2372°F) (1.43°C) (4.16°C)

SCM7B47K-04 0°C to +600°C ±0.06% Span ±0.18% Span

(+32°F to +1112°F) (0.36°C) (1.08°C)

SCM7B47T-05 0°C to +400°C ±0.13% Span ±0.38% Span

(32°F to +752°F) (0.52°C) (1.52°C)

SCM7B47T-06 -100°C to +200°C ±0.16% Span ±0.47% Span

(-148°F to +392°F) (0.48°C) (1.41°C)

SCM7B47E-07 0°C to +900°C ±0.11% Span ±0.34% Span

(+32°F to +1652°F) (0.99°C) (3.06°C)

SCM7B47R-08 +500°C to +1750°C ±0.10% Span ±0.30% Span

(+932°F to +3182°F) (1.25°C) (3.75°C)

SCM7B47S-09 +700°C to +1750°C ±0.08% Span ±0.25% Span

(1292°F to +3182°F) (0.84°C) (2.63°C)

SCM7B47B-10 +800°C to +1800°C ±0.12% Span ±0.35% Span

(+1472°F to +3272°F) (1.20°C) (3.50°C)

SCM7B47N-11 +200°C to +1300°C ±0.09% Span ±0.27% Span

(+392°F to +2372°F) (0.99°C) (2.97°C)

Max

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 conformity.

(4) V

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

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

compute overall measurement accuracy.





Output Ranges Available

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