EEWORLDEEWORLDEEWORLD

Part Number

Search

DI-8B35-03

Description
Linearized 4-Wire RTD Input Modules
File Size298KB,2 Pages
ManufacturerETC
Download Datasheet Compare View All

DI-8B35-03 Overview

Linearized 4-Wire RTD Input Modules

DI-8B35 Linearized 4-Wire RTD Input Modules
FEATURES
• Interfaces to 100Ω Platinum RTDs
• Linearizes RTD Signal
• High Level Voltage Outputs
• 1500Vrms Transformer Isolation
• ANSI/IEEE C37.90.1 Transient Pro-
tection
• Input Protected to 240VAC Continu-
ous
• 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 T
A
= +25ºC and +5V Power
DI-8B35
-200˚C to +850˚C (100Ω Pt)
Normal
Power Off
Overload
Continuous¹
Transient
50MΩ
200kΩ
200kΩ
240VAC
ANSI/IEEE C37.90.1
0.25mA
±0.001˚C/Ω²
1500Vrms max
ANSI/IEEE C37.90.1
120dB
70dB at 60Hz
±0.20˚C
±0.15˚C
±0.20˚C
±0.45˚C
±20ppm/ºC
±50ppm/ºC
250µVrms
3Hz
150ms
0 to +5V
Continuous Short to Ground
ANSI/IEEE C37.90.1
+5VDC ±5%
30mA
±25ppm/%
1.11" × 1.65" × 0.40"
(28.1mm × 41.9mm × 10.2mm)
Input Protection
Sensor Excitation Current
Lead Resistance Effect
CMV, Input to Output
Transient, Input to Output
CMR (50Hz or 60Hz)
NMR
Accuracy³
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 mea-
surements 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 ac-
cidental connection of power-line voltages
up to 240VAC. Clamp circuits on the I/O
and power terminals protect against harm-
ful transients.
The modules are designed for installation
in Class I, Division 2 hazardous locations
and have a high level of immunity to envi-
ronmental 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
-40ºC to +85ºC
Storage Temperature
-40ºC to +85ºC
Relative Humidity
0 to 95% Noncondensing
¹240VAC between + and - -/+EXC/-EXC terminals. 120VAC between - and +EXC/-
EXC terminals and between +EXC and -EXC terminals.
²Ω refers to the resistance in one lead.
³Includes 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-8B35-03 Related Products

DI-8B35-03 DI-8B35 DI-8B35-01 DI-8B35-02 DI-8B35-04
Description Linearized 4-Wire RTD Input Modules Linearized 4-Wire RTD Input Modules Linearized 4-Wire RTD Input Modules Linearized 4-Wire RTD Input Modules Linearized 4-Wire RTD Input Modules
Ask for advice
digitalWrite(TrigPin, LOW); //Send a short pulse to TrigPin delayMicroseconds(2); digitalWrite(TrigPin, HIGH); delayMicroseconds(10); digitalWrite(TrigPin, LOW); Why are the delay times of high and lo...
依诺儿 Embedded System
Quality factor Q of inductor
[size=4]The factor Q is an important parameter to indicate the quality of the coil. The size of the Q value indicates the size of the inductor coil loss. The larger the Q value, the smaller the coil l...
qwqwqw2088 Analogue and Mixed Signal
Ten tips to avoid detours in the workplace
In fact, many people understand many truths, but they just can't do them. I had a colleague before. Every time I asked him a question, he always nodded, but he would still be stubborn afterwards. So I...
向农 Talking about work
lpc1114 mp3+e-book+radio+digital photo frame is now available!
I have been busy and now I have finally completed the schematic and PCB layout. I hope you can give me some suggestions:...
zhaojun_xf NXP MCU
PL-2303hx circuit
The computer cannot recognize it, and it also does not work when the 4th pin is connected to 3.3V (3.3V is tried through voltage regulation or the chip's own output 3.3, but it cannot be recognized)...
ren364940161 DIY/Open Source Hardware
You can't change actors in a serialized TV series, otherwise it will become a different movie.
It's a very good drama "Ever Night". After watching the first part, I thought it was quite good and was looking forward to watching the second part. However, a lot of actors were replaced all of a sud...
led2015 Talking

EEWorld
subscription
account

EEWorld
service
account

Automotive
development
circle

Robot
development
community

Index Files: 1181  294  610  1880  1848  24  6  13  38  20 
Datasheet   0 1 2 3 4 5 6 7 8 9 A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
Room 1530, 15th Floor, Building B, No. 18 Zhongguancun Street, Haidian District, Beijing Telephone: (010) 82350740 Postal Code: 100190
Copyright © 2005-2026 EEWORLD.com.cn, Inc. All rights reserved 京ICP证060456号 京ICP备10001474号-1 电信业务审批[2006]字第258号函 京公网安备 11010802033920号