LPDT SERIES DEW POINT TRANSMITTER

原理：超薄的氧化铝电容原理量程：－100℃~+20℃
准确度：±3℃
重复性：±0.5℃
响应时间：T95小于5分钟
温度范围：－10~+70℃
采样流速：静态到100米/秒
存储温度：－40~+80℃
显示：带有背光灯的三位半液晶显示
控制：3个按键实现功能控制
校准方法：自动校准（提供+20℃以上的饱和湿气）
输出：4~20mA模拟信号

露点变送器机械性能：
外壳：不锈钢
工作压力：标准34bar以内
可选340bar以内
机械连接：14mm×1.25mm和3/4" ×16螺纹
电气连接：2.1毫米插头
电缆：两线电缆
电源：10~33VCD直流电源

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