-12-
-13-
HOLD
1
MAX/MIN
2
UNIT
3
LIGHT
5
VEL/FLOW
4
C/ F
6
READ
7
RST/CL R
8
REC
9
START/NE XT
SAMPLE
AREA
0
OPTION
ENTER
Hot Wire Anemometer
AREA=
4
Note:
a. failing to enter the duct area leads to failure of
measurement of the wind flow.
b. If wind flow is larger than 9999, the LCD screen
will show x10 or x100, indicating the measured value
multiplied by x10 or x100.
Wind Flow Calculate Formula : Flow =velocity *(Free Area)
Testing Wind velocity : The bar icon (showing on
the middle of LCD )changes accordingly with wind
Flow/Velocity
Place the in the duct area to measure current
wind flow value right away.
As shown in following figure:
probe
Aim the of the attached unit at duct area properly,
take measurement of 2/3 V max wind flow right away,
press again the "OPTION" key exit to measurement
of 2/3 max wind flow.
2/3 Max Wind flow calculate formula:
FLOW =2/3*Max wind Velocity *duct Area
probe
Measurement of 2/3 Vmax Wind Flow
Press the "VEL/FLOW" key to enter into "FLOW" mode;
Select your desired unit by pressing the UNIT key,for
example: select CMM for wind flow unit,
2
M for area unit;
Press the "AREA" key,letter on the LCD will disappe-
ared at this time you can input duct area, such as 1.6,
press "ENTER" key to confirm;
Press again the "OPTION" key to select "2/3 Vmax",
here the LCD screen as shown in following figure:
A
1
2
3
4
5
6
A
DOCUMENT NO.: QR-208/A
B C D E
B
C
D E
1
2
3
4
5
6
SCALE
SIZE
DATENAME
APPROVALS
APP. BY
CUSTOMTER
DRAWN BY
CHECKED BY
1:1
A4
更 改 记 录
次 号
1. 版本 号 升级 原 因：副 机 换探 头 胶件灰 色 2 0 1 5- 1 1-1 1
2. 第 2 页 /9 页 / 2 9 页 增 加内容 ( 含特殊声明 ) 1 6 / 7 /5
3. 改 21 页 被 遮 挡 部 分 17 . 10. 2 1
VER.A3
SHEET
OF
PART Number: X-XXX-XXX-XX
1 1
Gm8903 (BENETECH) 英文 有 唛说 明书示 意图
日 期
更 改 内 容
7168903002
MJP
2015-11-10
SHENZHEN JUMAOYUAN SCIENCE AND TECHNOLOGY CO., LTD.
7168903002
GM8903 有唛说明书
材料:105G双铜;
成品尺寸:190*130MM;
公差:+-1.0MM;
页数：32P;
工艺:单色双面印刷,
加工:装订成册说明书;骑马钉
英文
版本号升级VER:A3
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