通過隧道全截面平均值的精確測(cè)量來監(jiān)控隧道內(nèi)風(fēng)速風(fēng)向或廢氣排風(fēng)管道。由于氣候狀況的變化，對(duì)空氣流動(dòng)方向和流速的精確測(cè)量是隧道有效管理*的---可以確定*通風(fēng)控制和zui大程度降低運(yùn)營成本。

　 技術(shù)指標(biāo)

　 測(cè)量參數(shù)

是/否超高

　 測(cè)量量程

100m

　 測(cè)量原理

雙探頭光電開關(guān)

　 防護(hù)等級(jí)

IP 65

　 測(cè)量值輸出 模擬輸出0 / 2 / 4 ... 20 mA

　 接口 RS 232 / 422 / 485

　 狀態(tài)/控制信號(hào) 繼電器輸出（運(yùn)行/故障，報(bào)警，維護(hù)）

　 設(shè)備構(gòu)成 超聲波探頭對(duì)，計(jì)算單元

　 備注

由于氣候狀況的變化，對(duì)空氣流動(dòng)方向和流速的精確測(cè)量是隧道有效管理*的---可以確定*通風(fēng)控制和zui大程度降低運(yùn)營成本。

AdvancedUltrasonic

Technology

? High-accuracymeasurement at

each pointacross the tunnel

? High precisionof air flow even

at very lowvelocity rates

? Additionalrecording of wind

directions

? Stand-alonemeasuring system

without anymoving parts

? SimpleInstallation and

easy to usecontrols

Technical DataFLOWSIC 200

Type of models:

Transceiver unit

? FLSE 200-M,Aluminium cast housing (alumin. transducer)

? FLSE 200-M SS,Stainl. Steel housing (alumin. transducer)

? FLSE 200-H,Stainless Steel housing (titanium transducer)

Evaluation UnitMeasuring value processing/output, monitor function;

cable length toTR unit: 500 m max. (with optional data

repeater 1000 mmax.); larger distances on request

Measurement Data

Measur.component Velocity of air flows

MeasuringPrinciple Measurement of difference in ultrasonic transit time

Measuring range–20 m/s (65 ft/sec) ... + 20 m/s (65 ft/sec); cont. variable

Accuracy ± 0.1m/s (0.3 ft/sec); depending on calibration, installation,

flow profile andmeasuring distance

Measuringdistance 5 … 25 m (16 … 82 ft) with FLSE 200-M and -M SS

5 … 40 m (16 …130 ft) with FLSE-H; larger on request

Response time 1… 300 s (sec); freely selectable

Ambient Conditions

Ambienttemperature –20…+50 °C (–4 … 120 °F)

Device Data

Maintenanceintervals ?… 1 year: FLSE 200-M

1 … 5 years:FLSE 200-H depend. on application cond.

Point ofInstallation

? Height aboveroad

? Angle totunnel axis

4.2 m (14 ft)typical

45° … 60°

Displays

? Measuringvalues

? Status

LC-Display with2 rows

LEDs (operation,faults, maintenance, cycles)

Power supply 90… 140/190 … 260 V AC; 50/60 Hz;

powerconsumption: approx. 20 W max.

Dimensions

(L x W x D)

FLSE 200-M: 80 x80 x 120 mm3 (260 x 260 x 393 ft3)

FLSE 200-M SS/H:80 x 150 x 150 mm3 (260 x 492 x 492 ft3)

FLA 200: 240 x200 x 120 mm3 (787 x 565 x 394 ft3)

Weight FLSE200-M: approx. 1 kg (2.2 lb)

FLSE 200-M SS/H:approx. 2 kg (4.4 lb)

FLA 200: approx.1.5 kg (3.3 lb)

Protection classIP 65/NEMA 4X

Connection/Interfacevia evaluation unit (customer-provided)

Signals 1 analogoutput: 0…20 mA, 750 Ω max. load

optional: max. 2additional analog modules (inputs/outputs)

4 relays: 48 VAC, 1 A; electrically isolated

Interface RS 232for service purposes;

optional:PROFIBUS, RS 422 for data transfer