Impulse 8B39 User Manual

SensorLex 8B Isolated Analog Signal Conditioning Products

8B39

Current Output Modules

Description

8B modules are an optimal solution for monitoring real-world process signals

and providing high-level signals to a data acquisition system. Each 8B39 module

accepts an input signal from a non-isolated source, then isolates, filters and

converts the signal to an analog process current output.

Signal filtering is accomplished with a three-pole filter optimized for time and

frequency response which provides 60dB per decade of normal-mode-

rejection above 100Hz. One pole of this filter is on the system side and the other

two are on the isolated field side.

A special output circuit in the 8B39 module provides protection against accidental

connection of power-line voltages up to 40VAC continuous. Clamp circuits on

the I/O and power terminals protect against harmful transients.

The modules are designed for installation in Class I, Division 2 hazardous

locations and have a high level of immunity to environmental noise.

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Features

 Accepts High Level Voltage or Process

Current Input

 Process Current Output

 1500Vrms Isolation

 ANSI/IEEE C37.90.1 Transient Protection

 Output Protected to 40VAC Continuous

 110dB CMR

 100Hz Signal Bandwidth

 ±0.05% Accuracy

 ±0.02% Linearity

 Low Drift with Ambient Temperature

 UL Listing Pending

 Mix and Match Module Types on Backpanel

Figure 1: 8B39 Block Diagram

For information call 800-444-7644

SensorLex 8B Isolated Analog Signal Conditioning Products

Specifications

Module

Input Voltage Range ±5V or 0V to +5V ±5V

Input Voltage Maximum ±20V (no damage) *

Input Resistance 50MΩ *

Output Current Range 0 to 20mA or 4 to 20mA ±20mA

Over Range Capability 10% *

Output Compliance Voltage

(Open Circuit) 15VDC ±12VDC

Load Resistance Range 0 to 500Ω 0 to 400Ω

Output I Under Fault, max 26mA ±26mA

Output Protection

Continuous 40VAC *

Transient ANSI/IEEE C37.90.1 *

CMV, Output to Input 1500Vrms max *

Transient, Output to Input ANSI/IEEE C37.90.1 *

CMR (50Hz or 60Hz) 110dB *

NMR (3dB at 100Hz) 60dB per Decade *

Accuracy

Nonlinearity ±0.02% Span *

Stability

Noise

Bandwidth, 3dB 100Hz *

Rise Time, 10 to 90% Span 5ms *

Power Supply Voltage +5VDC ±5% *

Power Supply Current 100mA *

Power Supply Sensitivity ±100ppm/% *

Mechanical Dimensions 1.11" x 1.65" x 0.40" *

Environmental

Emissions EN61000-6-4 ISM, Group 1

Immunity EN61000-6-2 ISM, Group 1

NOTES:

* Same specification as -01, -02, -03, -04 models.

(1) Includes nonlinearity, hysteresis and repeatability.

(1)

Zero ±10ppm/°C *

Span ±50ppm/°C ±100ppm/°C

Output, 100kHz 2µArms *

(h)(w)(d) (28.1mm x 41.9mm x 10.2mm) *

Operating Temp. Range 40°C to +85°C *

Storage Temp. Range 40°C to +85°C *

Relative Humidity 0 to 95% Noncondensing *

Radiated, Conducted Class A *

RF Performance A ±0.5% Span Error *

ESD, EFT, Surge, Voltage Dips Performance B *

Typical at TA=+25°C and +5V power

8B39-01,-02,-03,-04 8B39-07

above 100Hz

±0.05% Span *

Ordering Information

Model Input Range Output Range

8B39-01 0V to +5V 4mA to 20mA

8B39-02 5V to +5V 4mA to 20mA

8B39-03 0V to +5V 0mA to 20mA

8B39-04 5V to +5V 0mA to 20mA

8B39-07 ±5V 20mA to +20mA

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