LPDT露點變送器

技術(shù)指標(biāo)：
原理：超薄的氧化鋁電容原理量程：－100℃~+20℃
準(zhǔn)確度：±3℃
重復(fù)性：±0.5℃
響應(yīng)時間：T95小于5分鐘
溫度范圍：－10~+70℃
采樣流速：靜態(tài)到100米/秒
存儲溫度：－40~+80℃
顯示：帶有背光燈的三位半液晶顯示
控制：3個按鍵實現(xiàn)功能控制
校準(zhǔn)方法：自動校準(zhǔn)（提供+20℃以上的飽和濕氣）
輸出：4~20mA模擬信號

露點變送器機(jī)械性能：
外殼：不銹鋼
工作壓力：標(biāo)準(zhǔn)34bar以內(nèi)
可選340bar以內(nèi)
機(jī)械連接：14mm×1.25mm和3/4" ×16螺紋
電氣連接：2.1毫米插頭
電纜：兩線電纜
電源：10~33VCD直流電源

Dewpoint Sensor Element

Type: Hyper-Thin-Film high capacitance Al203 Dewpoint Range

XTR-100 ............................... -100°C to +20°C

(-148°F to +68°F)

XTR-65..................................-65°C to +20°C

(-85°F to +68°F) Capacitance.................................15nF to 200nF

Accuracy . .....................................±2°C (± 3.6°F) for -100°C to 0°C Dewpoint

.....................................±3°C (± 5.5°F)for 0°C to +20°C Dewpoint

Repeatability ...............................±0.5°C (±0.9°F)

Temperature range ....................-10°C to +70°C

(+14°F to +158°F)

Sample Flow Range

(linear vel. @ 1 atm.) ........Static to 100 m/s Storage Temperature ...............-40°C to +80°C

(-40°F to +176°F)

Calibration Method .................Field span check NIST/NPL traceable

multipoint calibration

Temperature Measurement

The instrument measures the sample temperature with a precision integrated circuit sensor.

Electronics

Input resolution .........................0.1°C(dp)

Indicators......................................3.5 digit LCD with

custom legends Engineering units ......................°C, °F, ppmv, LBS H2O/mm scf,

gm H2O/M3

Controls ............................... 3 push buttons, all settings stored in EPROM

Output .................................Analog 4-20mA

Alarms..................................The 4-20 mA of the digital output may be

used by an external device to operate relays

Isolation............................... Sensor and case are isolated from the

current loop and shunted with 33V transorbs

Mechanical

Enclosure ............................Stainless steel (Weather proof cover optionally available)

Pressure operating range Standard: 34bar (500PSI) Optional: 340 bar (5,000 PSI)

Electrical connections....2.1 mm power jack with retainer thread size 3/4”-16, 14mm x 12.5mm

Cable .................................... Two conductor cable Power Requirements ......10 to 33 VDC, the instrument

draws 4-20mA depending on measurement dewpoint

Warranty..............................1 year