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Dwyer德威爾 二氧化碳濃度變送器/溫度變送器 CDT-2D44 CDT-5W44

對(duì)于二氧化碳濃度和溫度的輸出方式都是現(xiàn)場(chǎng)可任意選擇的4 to 20 mA, 0 to 5 VDC,

或者0 to 10 VDC，可適用于任何樓宇管理系統(tǒng)的控制器。另外溫度輸出方式還可以

訂購(gòu)熱敏電阻輸出或熱電阻輸出?？蛇x的帶可調(diào)設(shè)定點(diǎn)的開(kāi)關(guān)輸出能用于控制排風(fēng)

扇，自動(dòng)開(kāi)窗，或控制風(fēng)門(mén)，或聲光報(bào)警。

如果在應(yīng)用中需要帶顯示，墻裝式可選擇帶有LCD指示。如果訂購(gòu)的墻裝式和風(fēng)管

安裝式變送器不帶現(xiàn)場(chǎng)指示，可以選購(gòu)A-449遠(yuǎn)傳指示器，直接插入變送器的連接口

就能現(xiàn)場(chǎng)顯示，還可以設(shè)定為單獨(dú)顯示溫度，或CO2，或溫度和CO2同時(shí)顯示。標(biāo)

準(zhǔn)配置中帶有按鍵，可通過(guò)選擇菜單來(lái)配置，墻裝式可以訂購(gòu)為不帶配置按鍵的產(chǎn)

品。為了安全保護(hù)變送器不被誤操作，可選擇內(nèi)部的跳線開(kāi)關(guān)屏蔽外部的按鍵?？?/p>

通過(guò)菜單配置的參數(shù)有：工程單位，開(kāi)關(guān)輸出的設(shè)定點(diǎn)值，顯示方式，變送器輸出

范圍，環(huán)境大氣壓，和現(xiàn)場(chǎng)校準(zhǔn)

Dwyer德威爾 二氧化碳濃度變送器/溫度變送器 CDT-2D44 CDT-5W44

Range: CO2: 0 to 2000 or 0 to 5000 ppm (depending on model); Temperature: 32 to 122°F (0 to 50°C).

Accuracy: CO2: ±40 ppm ±3% of reading; RH: ±2% (10 to 90% RH); Temperature: ±1°C @ 25°C.

Temperature Dependence: ±8 ppm/°C at 1100 ppm.

Non-Linearity: 16 ppm.

Pressure Dependence: 0.13% of reading per mm of Hg.

Response Time: 2 min for 99% step change.

Temperature Limits: 32 to 122°F (0 to 50°C).

Humidity Limits: 10 to 95% RH (non-condensing).

Power Requirements: 16 to 35 VDC or 19 to 28 VAC.

Power Consumption: Average: 2 w; Peak: 3.75 w.

Output: Current: 4 to 20 mA (max 500 Ω); Voltage: 0 to 5 VDC or 0 to 10 VDC (min 500 Ω);

Relay: SPST NO 2 A @ 30 VDC;

Weight: 4.4 oz (125 g).

Sensor: Single beam, dual-wavelength NDIR.

Agency Approvals: CE.

Duct Air Velocity Range: 0-4000 FPM (20.32 m/s).

Temperature: ±1°C @ 25°C.

Warranty: 5 year limited warranty.

Dwyer德威爾 二氧化碳濃度變送器/溫度變送器 CDT-2D44 CDT-5W44

Range: CO2: 0 to 2000 or 0 to 5000 ppm (depending on model); Temperature: 32 to 122°F (0 to 50°C).

Accuracy: CO2: ±40 ppm ±3% of reading; RH: ±2% (10 to 90% RH); Temperature: ±1°C @ 25°C.

Temperature Dependence: ±8 ppm/°C at 1100 ppm.

Non-Linearity: 16 ppm.

Pressure Dependence: 0.13% of reading per mm of Hg.

Response Time: 2 min for 99% step change.

Temperature Limits: 32 to 122°F (0 to 50°C).

Humidity Limits: 10 to 95% RH (non-condensing).

Power Requirements: 16 to 35 VDC or 19 to 28 VAC.

Power Consumption: Average: 2 w; Peak: 3.75 w.

Output: Current: 4 to 20 mA (max 500 Ω); Voltage: 0 to 5 VDC or 0 to 10 VDC (min 500 Ω);

Relay: SPST NO 2 A @ 30 VDC;

Weight: 4.4 oz (125 g).

Sensor: Single beam, dual-wavelength NDIR.

Agency Approvals: CE.

Duct Air Velocity Range: 0-4000 FPM (20.32 m/s).

Temperature: ±1°C @ 25°C.

Warranty: 5 year limited warranty.