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參數資料
| 型號： | DI-8B35 |
| 廠商： | Electronic Theatre Controls, Inc. |
| 英文描述： | Linearized 4-Wire RTD Input Modules |
| 中文描述： | 線性化的4線RTD輸入模塊 |
| 文件頁數： | 1/2頁 |
| 文件大小： | 309K |
| 代理商： | DI-8B35 |
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
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.
SPECIFICATIONS
Typical at T
A
= +25oC and +5V Power
DI-8B35
Input Range Limits
Input Resistance
-200C to +850C (100Ω Pt)
Normal
Power Off
Overload
50M
200k
200k
Input Protection
Continuous1
Transient
240VAC
ANSI/IEEE C37.90.1
0.25mA
±0.001C/Ω2
1500Vrms max
ANSI/IEEE C37.90.1
120dB
70dB at 60Hz
Sensor Excitation Current
Lead Resistance Effect
CMV, Input to Output
Transient, Input to Output
CMR (50Hz or 60Hz)
NMR
Accuracy3
DI-8B35-01
DI-8B35-02
DI-8B35-03
DI-8B35-04
±0.20C
±0.15C
±0.20C
±0.45C
Stability
Output Offset
Gain
±20ppm/oC
±50ppm/oC
Noise
Output, 100kHz
250μVrms
3Hz
150ms
0 to +5V
Bandwidth, -3dB
Response Time, 90% Span
Output Range
Output Protection
Transient
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)
Power Supply Voltage
Power Supply Current
Power Supply Sensitivity
Mechanical Dimensions
Environmental
Operating Temperature
Storage Temperature
Relative Humidity
-40oC to +85oC
-40oC to +85oC
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
相關PDF資料 |
PDF描述 |
|---|---|
| DI-8B35-01 | Linearized 4-Wire RTD Input Modules |
| DI-8B35-02 | Linearized 4-Wire RTD Input Modules |
| DI-8B35-03 | Linearized 4-Wire RTD Input Modules |
| DI-8B35-04 | Linearized 4-Wire RTD Input Modules |
| DI-8B45-04 | Frequency Input Modules |
相關代理商/技術參數 |
參數描述 |
|---|---|
| DI-8B35-01 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Linearized 4-Wire RTD Input Modules |
| DI-8B35-02 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Linearized 4-Wire RTD Input Modules |
| DI-8B35-03 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Linearized 4-Wire RTD Input Modules |
| DI-8B35-04 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Linearized 4-Wire RTD Input Modules |
| DI-8B45 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Frequency Input Modules |
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