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混凝土應(yīng)變的測(cè)量
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Products
 

Model RH-1 Humidity Meter

 

1Application

Model RH-1 Humidity Meter is applied to measure the relative environmental humidity, and to provide the baseline date of the relative humidity for the automatic measurement system. The core part of the humidity meter has a small size so that let it is easy to make different meters for different purposes in protection instruments of various shapes. Due to the Model RH-1 Humidity Meter has a linear voltage output, so it is able to be directly connected with external Readout Box. The humidity meter is mainly used for the relative humidity measurement of the air environment and also for other environments (e.g. concrete, soil, etc.).

2Technical Specifications

Physical Parameters

Symbol

Value

Unit

Storage Temperature

Tstg

-30??60

??C

Supply Voltage (Peak Value)

Vs

5??7

VDC

Humidity Working Scope

RH

10??99

%RH

Temperature Working Scope

Ta

-30??60

??C

 

Physical Parameters

Symbol

Min. Value

Nom. Value

Max. Value

Unit

Humidity Range

RH

10

 

99

%RH

Relative Humidity Accuracy

(10 ~ 99% RH)

RH

 

??3

??5

%RH

Supply Voltage

VS

4.75

5.00

5.25

V

Typical Output ??2%RH@55%

Vout

2.42

2.48

2.54

V

Consumption Current

IC

 

0.4

0.8

mA

Temperature Coefficient

(10 ~ 50??C)

TCC

 

+0.1

 

%RH/??C

Average Sesitivity

(33 ~ 75% RH)

??mV/%RH

 

+25

 

mV/%RH

Adsorption Capacitance

(R =15k??)L

IS

 

 

300

??A

Dew Recovery Time

t

 

10

 

s

Humidity Delay

 

 

??1.5

 

%RH

Drifting

 

 

0.5

 

%RH/yr

Response Time

(5 ~ 10%RH,static, 63%)

??

 

10

 

s

Output Impedance

Z

 

70

 

??

 

 
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 NGN Instrument, Incorporated Email: njgn@njgn.com 
 26 Majiajie street Website: m.hldgxs.cn
 Nanjing, Jiangsu Tel??86(25)84443850/1/2/3
 CHINA 210009 Fax??025-58705973 
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