Extech Instruments 451112 Bedienungsanleitung

1 Model 451112 Version 2.4 2/04

INSTRUCTION MANUAL

Model 451112

Vane Anemometer

•Measures Air

Velocity &

Temperature

•Degrees C/F

switchable

•6 selectable units

of measure

•Data Hold function

1. INTRODUCTION

Congratulations on your purchase of Extech’s Vane Anemometer. This professional meter,

with proper care, will provide years of safe reliable service.

Test Equipment Depot - 800.517.8431 - 99 Washington Street Melrose, MA 02176

FAX 781.665.0780 - TestEquipmentDepot.com

99 Washington Street

Melrose, MA 02176

Phone 781-665-1400

Toll Free 1-800-517-8431

Visit us at www.TestEquipmentDepot.com

2 Model 451112 Version 2.4 2/04

2. SPECIFICATIONS

2.1 General Specifications

Display 0.7" (18mm) 3-1/2 digit (1999 count) LCD

Measurement m/s (meters per second), km/h (kilometers per hour), ft/min

(feet per minute), knots (nautical miles per hour), Temp. °C/°F

Data hold Freezes present value on display when selected

Sensor Structure Air velocity sensor: Conventional twisted vane arm with

balanced, low-friction ball-bearing design

Temperature sensor: Thermister

Ambient 32 °F to 122 °F (0 °C to 50 °C); <80%

Power Supply 9V battery (Heavy duty type)

Power Current Approx. 9 mA DC

Weight 12 oz. (325 g) (including battery)

Dimensions Main instrument: 6.6 x 3.2 x1.2" (180 x 72 x 32 mm)

Sensor Head: Round, 2.8" (72 mm) Dia.

Sensor Cable: 39" (1m) length

2.2 Range Specifications

Measure Range Resolution Accuracy

m/s 0.4 – 30.0 m/s 0.1 m/s ± (2% + 0.2 m/s)

km/h 1.4 – 108.0 km/ 0.1 km/h ± (2% + 0.2 km/hr)

ft/min 80 – 5910 ft/min * 10 ft/min ± (2% + 20 ft/min)

knots 0.8 – 58.3 knots 0.1 knots ± (2% + 0.2 knots)

Temp. 0 to 60oC / 32 to 140oF0.1oC / 0.1oF0.8oC / 1.5oF

* Multiply displayed ft/min readings by a factor of 10

3. FRONT PANEL DESCRIPTION

1. LCD Display

2. °C/ °F /Airflow selection

3. ON/OFF/Data Hold Switch

4. Airflow unit selection

5. Sensor-to-meter connection

6. Sensor head

7. Sensor handle

3 Model 451112 Version 2.4 2/04

4. OPERATION

4.1 Move the "OFF/ON/HOLD" switch to the ON position to apply meter power.

4.2 Select temperature or airflow via the "°C/°F /airflow" switch. The display will indicate

temperature or airflow.

4.3 Select the air velocity units using the

"Airflow Units" switch, airflow will display in

"m/s", "km/h", "ft/min", or "knots" as

selected. Note that displayed ft/min

readings must by multiplied by 10.

4.4 When measuring, the air should be

striking the vane on the side of the vane

without the yellow dot (see diagram).

4.5 Data Hold: During measurements,

moving the "OFF/ON/HOLD" switch to the

"Hold" position will freeze the displayed

value. Move the switch back to "ON" to cancel the HOLD function.

5. BATTERY REPLACEMENT

When the display indicates "BAT" (low battery), replace the battery. To replace the battery:

a. Remove rear screw (bottom, center), slide the Battery Cover off, and remove

battery.

b. Replace with 9V battery (heavy duty type) and reinstall the cover and rear screw.

c. Make sure the battery cover is secured after changing the battery.

airflow

Yellow

Dot

4 Model 451112 Version 2.4 2/04

ADDENDUM: USEFUL EQUATIONS AND CONVERSIONS

Area equation for rectangular or square ducts

Area equation for circular ducts

Cubic equations

NOTE: Measurements made in inches

must be converted to feet or meters before using the above formulae.

Unit of Measure Conversion Table

m/s ft/min knots km/h MPH

1 m/s 1196.87 1.944 3.6 2.24

1 ft/min 0.00508 10.00987 0.01829 0.01138

1 knot 0.5144 101.27 11.8519 1.1523

1 km/h 0.2778 54.69 0.54 10.6222

1 MPH 0.4464 87.89 0.8679 1.6071 1

Width (W)

Height (H)

Area (A) = Width (W) x Height (H)

CFM (ft3/min) = Air Velocity (ft/min) x Area (ft2)

CMM (m3/min) = Air Velocity (m/sec) x Area (m2) x 60

Radius Area (A) = 6x r2

Where 6 = 3.14 and r2= radius x

radius

Test Equipment Depot - 800.517.8431 - 99 Washington Street Melrose, MA 02176

FAX 781.665.0780 - TestEquipmentDepot.com

Back to the 451112 Product Info Page

Visit us at www.TestEquipmentDepot.com

Inhaltsverzeichnis

Andere Extech Instruments Messgerät Handbücher

Extech Instruments

Extech Instruments EC600 Bedienungsanleitung

Extech Instruments

Extech Instruments HD750-NIST Bedienungsanleitung

Extech Instruments

Extech Instruments 380652 Bedienungsanleitung

Extech Instruments

Extech Instruments SP505 Bedienungsanleitung

Extech Instruments

Extech Instruments 407123 Bedienungsanleitung

Extech Instruments

Extech Instruments EX622 Bedienungsanleitung

Extech Instruments

Extech Instruments HDV-WTX2 Abmessungen

Extech Instruments

Extech Instruments 34135-A Bedienungsanleitung

Extech Instruments

Extech Instruments 461920 Bedienungsanleitung

Extech Instruments

Extech Instruments 407860 Bedienungsanleitung

Extech Instruments

Extech Instruments HDV7C-A4-60-1 Bedienungsanleitung

Extech Instruments

Extech Instruments HD700 Bedienungsanleitung

Extech Instruments

Extech Instruments HD600 Bedienungsanleitung

Extech Instruments

Extech Instruments EA80 Bedienungsanleitung

Extech Instruments

Extech Instruments SDL400-NIST Bedienungsanleitung

Extech Instruments

Extech Instruments EX845 Bedienungsanleitung

Extech Instruments

Extech Instruments HD750 Bedienungsanleitung

Extech Instruments

Extech Instruments Oyster-16 Bedienungsanleitung

Extech Instruments

Extech Instruments MA250 Bedienungsanleitung

Extech Instruments

Extech Instruments DC400 Bedienungsanleitung

Extech Instruments

Extech Instruments 407510 Bedienungsanleitung

Extech Instruments

Extech Instruments 451112 Bedienungsanleitung

Extech Instruments

Extech Instruments SL355 Bedienungsanleitung

Extech Instruments

Extech Instruments MN30 Bedienungsanleitung

Beliebte Messgerät Handbücher anderer Marken

Suaoki

Suaoki D40 Bedienungsanleitung

Elster

Elster BK-G1.6 Bedienungsanleitung

Endress+Hauser

Endress+Hauser Deltabar FMD71 Handbuch

Duratool

Duratool D03128 Bedienungsanleitung

Vega

Vega VEGAPULS 65 Bedienungsanleitung

Tonghui

Tonghui TH2618B Bedienungsanleitung

Tenmars

Tenmars TM-801 Bedienungsanleitung

MSR

MSR 145 Bedienungsanleitung

TPS

TPS WP-82 Bedienungsanleitung

ELMETRON

ELMETRON CP-511 Bedienungsanleitung

PCB Piezotronics

PCB Piezotronics 003C30 Bedienungsanleitung

Tenma

Tenma 72-10465 Bedienungsanleitung

Endress+Hauser

Endress+Hauser Proline Promag 50 Technische Daten

Siemens

Siemens SITRANS F Coriolis FCT030 Stücklistenhandbuch

KLINGER

KLINGER CMF V Series Bedienungsanleitung

EXFO

EXFO FTB-2 Bedienungs- und Wartungshandbuch

Keysight

Keysight M8290A Bedienungsanleitung

ADTEK

ADTEK MW-5 Bedienungsanleitung