View DI-8B35_4946271.PDF datasheet online --- IC-ON-LINE

Datasheet File OCR Text:

DI-8B35 Linearized 4-Wire RTD Input Modules
FEATURES
* Interfaces to 100 Platinum 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
SPECIFICATIONS
Input Range Limits Input Resistance
Typical at TA = +25C and +5V Power
DI-8B35
-200C to +850C (100 Pt) Normal Power Off Overload Continuous Transient 50M 200k 200k 240VAC ANSI/IEEE C37.90.1 0.25mA 0.001C/ 1500Vrms max ANSI/IEEE C37.90.1 120dB 70dB at 60Hz 0.20C 0.15C 0.20C 0.45C 20ppm/C 50ppm/C 250Vrms 3Hz 150ms 0 to +5V Continuous Short to Ground ANSI/IEEE C37.90.1 +5VDC 5% 30mA 25ppm/% 1.11" x 1.65" x 0.40" (28.1mm x 41.9mm x 10.2mm)
Input Protection Sensor Excitation Current Lead Resistance Effect CMV, Input to Output Transient, Input to Output CMR (50Hz or 60Hz) NMR Accuracy
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.
DI-8B35-01 DI-8B35-02 DI-8B35-03 DI-8B35-04
Stability Noise
Output Offset Gain Output, 100kHz
Bandwidth, -3dB Response Time, 90% Span Output Range Output Protection Power Supply Voltage Power Supply Current Power Supply Sensitivity Mechanical Dimensions Environmental
Transient
Operating Temperature -40C to +85C Storage Temperature -40C to +85C Relative Humidity 0 to 95% Noncondensing 240VAC between + and - -/+EXC/-EXC terminals. 120VAC between - and +EXC/EXC terminals and between +EXC and -EXC terminals. refers to the resistance in one lead. Includes conformity, hysteresis and repeatability.
DATAQ Instruments, Inc. * 241 Springside Drive * Akron, Ohio 44333 * Tel: 330-668-1444 * Email: support@dataq.com * www.dataq.com
DI-8B35 4-Wire RTD Input Module
Block Diagram
Ordering Information
Model Number Input Range DI-8B35-01 -100C to +100C (-148F to +212F) DI-8B35-02 0C to +100C (+32F to +212F) DI-8B35-03 0C to +200C (+32F to +392F) DI-8B35-04 0C to +600C (+32F to +1112F) *Includes conformity, hysteresis, and repeatability. Accuracy* 0.20C 0.15C 0.20C 0.45C
241 Springside Drive Akron, Ohio 44333 330-668-1444
Data Acquisition Product Links
(click on text to jump to page)
Data Acquisition | Data Logger | Chart Recorder | Thermocouple | Oscilloscope
The information on this data sheet is subject to change without notice. DATAQ and the DATAQ logo are registered trademarks of DATAQ Instruments, Inc. All rights reserved. Copyright (c) 2005 DATAQ Instruments, Inc.

▲Up To Search▲

Price & Availability of DI-8B35

	To Download DI-8B35 Datasheet File
If you can't view the Datasheet, Please click here to try to view without PDF Reader .