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BAPI - Sensor Solutions Since 1993

RTD概述

具有优异线性度、精度和重现性的电阻温度检测器

RTD说明

BAPI RTD(电阻温度检测器)是热敏电阻元件,每度温度变化都会产生微小的电阻变化。RTD因其在整个温度范围内具有优异的线性度以及高精度和重现性而特别受到认可。

BAPI产品中提供的RTD具有±0.3°C的标准互换性公差(在0°C时测量)。同时也提供更高精度的传感器。A级系列的互换性公差为±0.15°C(在0°C时测量)。A级RTD的可用性和价格请来电咨询。无论是标准级还是A级,BAPI RTD都具有如此高的精度,可以互换使用而无需承担控制器偏移的费用。

大多数RTD感应元件可以封装以承受极宽的温度范围(-200至600°C)。对于大多数用途,标准工作范围应该足够,但我们也有工作温度范围更高或更低的RTD。BAPI提供1KΩ铂金RTD,具有各种范围以满足您的特定应用需求。

规格术语定义

电阻公差(精度)

遵循相同曲线的RTD之间最大差值。

稳定性(漂移)

RTD电阻特性变化量。BAPI仅使用最高质量的薄膜铂金RTD传感器,具有极小的漂移值。

工作范围

所示的工作范围仅针对RTD传感器。安装封装可能会进一步限制工作范围,具体说明见各安装类型规格。

RTD规格

电阻公差(精度)

范围:在0°C时绝对欧姆值的±0.06,符合标准1/3 DIN

公差百分比(%)

范围:±0.0 ± (0.02 x t (0.0111 + t));t=温度°C
在0°C时 - 范围±0.02°C,在100°C时 - 范围±0.13°C
平均标准:±0.0 ± (0.0052 + (0.01 x 温度°C))

稳定性(漂移)

在65°C下连续5,000小时内±0.1°C

灵敏度

1KΩ:2.13Ω/°C(在70°F时)
100Ω:0.385Ω/°C

自热(仅RTD内部)

在空气中0.4°C/mW

1KΩ铂金RTD的标准和内部温度范围

符号参考电阻温度系数工作范围
1KΩ (375)1000Ω±10003.75 (Ω/°C)-80 to 200°C
1KΩ (385)1000.0±1.0Ω3.850 (Ω/°C)-65 to 260°C
1KΩ (392)1000.0±2.0Ω3.916 (Ω/°C)-70 to 205°C
*Available as a 1KΩ, high accuracy sensor. Consult the factory +/- 0.2°Ω high accuracy standard element.

Interchangeability Tolerance Comparison

Standard RTD

Tolerance: ±0.3°C at 0°C

Best For: General HVAC applications

Benefit: Cost-effective high accuracy

Class A RTD

PREMIUM

Tolerance: ±0.15°C at 0°C

Best For: Critical applications

Benefit: Maximum precision

Key RTD Features

±0.15°C

Exceptional Accuracy

Class A RTDs provide industry-leading accuracy for critical applications

Linear

Excellent Linearity

Predictable output throughout the entire temperature range

-200°C to 600°C

Wide Range

Extremely broad temperature range for diverse applications

RTD输出表

详细的电阻与温度对照表,显示每种RTD类型在其全工作范围内的精确欧姆值。这些表格对系统集成和故障排除至关重要。

1KΩ PLATINUM RTD OUTPUT TABLE

°F°COhms°F°COhms°F°COhms
-40-40.00842.714-10.00960.96820.001077.9
-38-38.89847.016-8.89965.27021.111082.2
-36-37.78851.218-7.78969.47222.221086.4
-34-36.67855.520-6.67973.77423.331090.6
-32-35.56859.822-5.56977.97624.441094.9
-30-34.44864.024-4.44982.27825.561099.1
-28-33.33868.326-3.33986.48026.671103.4
-26-32.22872.628-2.22990.78227.781107.6
-24-31.11876.830-1.11994.98428.891111.9
-22-30.00881.1320.001000.08630.001116.1
-20-28.89885.4341.111004.38831.111120.4
-18-27.78889.6362.221008.59032.221124.7
-16-26.67893.9383.331012.89233.331128.9
-14-25.56898.1404.441017.19434.441133.2
-12-24.44902.4425.561021.39635.561137.4
-10-23.33906.7446.671025.69836.671141.7
-8-22.22910.9467.781029.910037.781145.9
-6-21.11915.2488.891034.110238.891150.2
-4-20.00919.45010.001039.010440.001154.4
-2-18.89923.75211.111043.210641.111158.7
0-17.78928.05412.221047.510842.221163.0
2-16.67932.25613.331051.811043.331167.2
4-15.56936.55814.441056.011244.441171.5
6-14.44940.76015.561060.311445.561175.7
8-13.33945.06216.671064.611646.671180.0
10-12.22949.36417.781068.811847.781184.3
12-11.11953.56618.891073.112048.891188.5
12250.001192.812451.111197.017680.001309.7
12652.221201.312853.331205.517881.111313.9
13054.441209.813255.561214.018082.221318.2
13456.671218.313657.781222.518283.331322.4
13858.891226.814060.001231.118484.441326.7
14261.111235.314462.221239.618585.001328.6
14663.331243.814864.441248.1
15065.561252.415266.671256.6
15467.781260.915668.891265.1
15870.001269.416071.111273.6
16272.221277.916473.331282.1
16674.441286.416875.561290.6
17076.671294.917277.781299.1
17478.891303.3
14060.001231.719490.001348.6248120.001465.5
14261.111235.919691.111352.8250121.111469.8
14462.221240.219892.221357.1252122.221474.0
14663.331244.420093.331361.3254123.331478.3
14864.441248.720294.441365.6256124.441482.5
15065.561252.920495.561369.9258125.561486.8
15266.671257.220696.671374.1260126.671491.0
15467.781261.420897.781378.4262127.781495.3
15668.891265.721098.891382.6264128.891499.5
15870.001270.6212100.001387.5266130.001504.4
16071.111274.8214101.111391.7268131.111508.7
16272.221279.1216102.221396.0270132.221512.9
16473.331283.3218103.331400.2272133.331517.2
16674.441287.6220104.441404.5274134.441521.4
16875.561291.8222105.561408.7276135.561525.7
17076.671296.1224106.671413.0278136.671529.9
17277.781300.3226107.781417.2280137.781534.2
17478.891304.6228108.891421.5282138.891538.4

Note: Resistance values are calculated using industry-standard coefficients: IEC 60751 (α = 0.00385) for platinum RTDs and (α = 0.00672) for nickel RTDs. The 1K (375) table uses α = 0.00375. For complete tables covering the full temperature range or other RTD types, please contact BAPI technical support or refer to our downloadable specification sheets.

Need Help Selecting an RTD?

Our technical team can help you choose between standard and Class A RTDs for your application.