Site Search:

Model DI-8B35-03

Isolated 0°C to +200°C (+32°F to +392°F) RTD 8B-style Amplifier

$132.00 each
In
Stock
  • 0°C to +200°C (+32°F to +392°F) input range
  • Interfaces to 100Ω Platinum 4-wire RTDs
  • Linearizes RTD Signal
  • High Level Voltage Outputs
  • 1500Vrms Transformer Isolation
  • ANSI/IEEE C37.90.1 Transient Protection
  • Input Protected to 240VAC Continuous
  • 120dB CMR
  • 70dB NMR at 60Hz
  • Low Drift with Ambient Temperature
  • CSA, FM and CE Certifications Pending
  • Mix and Match Module Types
  • View Dimensions and pinout
Tweet this page Like this product on Facebook Share this page on LinkedIn Email this page
DI-8B DAQ Amplifiers
This amplifier module measures 0°C to +100°C (+32°F to +212°F).This amplifier module supports 100Ω Pt RTDs.This amplifier module has 3Hz bandwidth.This data acquisition system has a 30-day Money back guaranteeThis amplifier is manufactured in the United States of America

Description

DI-8B modules are an optimal solution for monitoring real-world process signals and providing high level signals to a data acquisition system. Each DI-8B35 module isolates, filters, amplifies, and linearizes a single channel of temperature input from an RTD and provides an analog voltage output.

RTD excitation is provided from the module using a precision current source. Excitation current does not flow in the input signal leads, which allows RTD measurements to be made independent of lead resistance. The exciation currents are small (0.25mA) which minimizes self-heating of the RTD.

Signal filtering is accomplished with a three-pole filter optimized for time and frequency response which provides 70dB of normal-mode-rejection at 60Hz. One pole of this filter is on the field side of the isolation barrier for anti-aliasing, and the other two are on the system side.

A special input circuit on the DI-8B35 module provides protection against accidental connection of power-line voltages up to 240VAC. 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.

Accessories

8BP02

2-Position Backplane

$83.00
8BP02

Description

2-position analog I/O backplane, non-multiplexed. For use with DI-8B Modules. View the 8BP02 schematic or the 8BPxx schematic or download the pdf.

8BP04

4-Position Backplane

$134.00
8BP04

Description

4 channel backplane. Each module has its own analog bus. For use with DI-8B Modules. View the 8BP04 schematic or the 8BPxx schematic or download the pdf.

8BP08

8-Position Backplane

$199.00
8BP08

Description

8 channel backplane. Each module has its own analog bus. For use with DI-8B Modules. View the 8BP08 schematic or the 8BPxx schematic or download the pdf.

8BP16

16-Position Backplane

$309.00
8BP16

Description

16 channel backplane. Each module has its own analog bus. For use with DI-8B Modules. View the 8BP16 schematic or the 8BPxx schematic or download the pdf.

DI-5B-PS

Power Supply

$65.00
Power Supply

Description

5V DC Power Supply for use with both DI-5B and DI-8B Backplanes.

Specifications

Input Range: 0°C to +200°C (+32°F to +392°F)
Input Resistance: Normal: 50MΩ
Power Off: 200kΩ
Overload: 200kΩ
Input Protection: Continuous: 240VAC
(240VAC between + and - -/+EXC/-EXC terminals.
120VAC between - and +EXC/- EXC terminals and between +EXC and -EXC terminals.)
Transient: ANSI/IEEE C37.90.1
Sensor Excitation Current: 0.25mA
Lead Resistance Effect: ±0.005˚C/Ω
(Ω refers to the resistance in one lead)
CMV, Input to Output: 1500Vrms max
Transient, Input to Output: ANSI/IEEE C37.90.1
CMR (50Hz or 60Hz): 120dB
NMR: 70dB at 60Hz
Accuracy: ±0.20°C
(Includes conformity, hysteresis, and repeatability.)
Stability: Output Offset: ±20ppm/ºC
Gain: ±50ppm/ºC
Noise: Output, 100kHz: 200µVrms
Bandwidth, -3dB: 3Hz
Response Time, 90% Span: 150ms
Output Range: 0 to +5V
Output Protection: Transient: Continuous Short to Ground
ANSI/IEEE C37.90.1
Power Supply Voltage: +5VDC ±5%
Power Supply Current: 25mA
Power Supply Sensitivity: ±25ppm/%
Mechanical Dimensions: 1.11" × 1.65" × 0.40"
(28.1mm × 41.9mm × 10.2mm)
Operating Temperature: -40ºC to +85ºC
Storage Temperature: -40ºC to +85ºC
Relative Humidity: 0 to 95% Noncondensing
RTD Standards: Type: 100Ω Pt
Alpha Coefficient: 0.00385

Compatible Products