Cat.No.7630-00

Digital Barometer

Model
SK-500B
The SK-500B is a desk-top type precision digital barometer having the wide measuring range (600 to 1100 hPa). Possible to display and store the measured data on a PC in real time

Features  

Wide measuring range of 600 to 1100hPa
High resolution of 0.01hPa
Red LED for easy visibility
Various arithmetic results: calculates and displays the values of MAX, MIN, AVG and REL
RS-232C/Printer output
Equipped with an RS-232C output. Measured values can be displayed on a computer in real time.  The data also can be printed out in real time with the optional printer
Upper and lower limit alarms
Equipped with a contact output that can be connected to an external alarm device  such as a buzzer and revolving light. 
Upper and lower limit alarm values can be separately set
Pressure port that is the inlet for the atmospheric pressure is equipped

Specifications  

Measuring range 600.00 to 1100.00hPa
Resolution 0.01hPa
Accuracy 
(at 10 to 40C)
±0.50hpa (700.00 to 1100.00hPa)
±1.00hpa (other than above)
Sampling time approx. 1 sec.
Sensing element Piezoresistance pressure sensor
Display 7 segment red LED (6 digits)  Status indication: red LED
Operation ambient -10°C to 50°C, less than 85 %rh (no condensing)
Power requirement 9VDC (exclusive AC adapter in 100 to 240VAC use) 660mA 50/60Hz
Materials Main Body: SPCC
Display: acryl resin
Pressure port: SUS304
Dimensions (W)200×(H)90×(D)280 mm
Weight appricx. 3.0 kg
Accessories Instruction manual, exclusive AC adapter x 1
RS-232C cable x 1
USB serial cable (with CD-ROM for USB driver) x 1

Instalation

The SK-500B is an indoor use desk-top type digital barometer.
Install the unit vertically avoiding the places as below.

▪ In flammable gases, corrosive gases and explasive gases
▪ In a place subject to direct sunshine and near the thermal appliance
▪ Near the exhaust port of airconditioner
▪ In a plece subject to vibration
▪ Beyond the operation ambient (-10 to 50°C, less than 85%rh, no condensing)
▪ In an environment where electrical noise is generated
▪ In a place subject to rain and splash water

Cautions in use

Atmospheric pressure differs according to the height.  
This SK-500B is high sensitive device. For accurate measurement, careully align the reference revel on the unit with 
the pressure to be measured.  The reference level is in the center of the pressure port on rear of the case.

Software

By using the exclusive software, measured data can be displayed on PC in real time.

▪ SK-500B and PC can be connected with the dedicated cable
▪ Measured data can be evaluated with graphs on PC
▪ Acquired data can be stored with "CSV" format in real time
▪ Exclusive software can be downloaded from our software downloading page
▪ OS:Windows XP(SP3), Windows 7(64-bit/32-bit), Windows 8(64-bit/32-bit), Windows 8.1(64-bit/32-bit), Windows 10(64-bit/32-bit)

* Please click here to skip to the software downloading page (free software)

Graph Display on the PC Screen

Trivial

Atmospheric pressure is defined as “power” on the horizontal surface by weight of the air and hectopascal (hPa) is used
as a unit of atmospheric pressure.

The air becomes atmospheric layer and wraps up the earth. The weight (pressure) of approx. 1kg per 1cm2 applies to sea level
and it is equivalent to approx. 1,013 hPa.

As altitude rises, the air decreases and its weight decrease.This means that the atmospheric pressure falls down as altitude rises.
Upon reaching a height of 100m above sea level, the atmospheric pressure will drop approx. 12 hPa.

Thus, in order to compare the readings measured at different spots (heights), it is necessary to convert it into the same altitude
as mean sea level.  The converted atmospheric pressure is called Sea level pressure.

The relation between Altitude and Atmospheric Pressure
Altitude
m
Pressure
hPa
Altitude
m
Pressure
hPa
Altitude
m
Pressure
hPa
Altitude
m
Pressure
hPa
0
100
200
300
400
500
600
700
800
900
1000
1013.2
1001.2
989.5
977.7
966.0
954.5
943.2
932.0
920.8
909.7
898.8
1100
1200
1300
1400
1500
1600
1700
1800
1900
2000
887.9
877.2
866.6
856.0
845.5
835.1
824.9
814.9
804.9
795.0
2100
2200
2300
2400
2500
2600
2700
2800
2900
3000
785.2
775.5
765.7
756.3
746.9
737.5
728.3
719.9
709.9
701.1
3200
3400
3600
3800
4000
4200
4400
4600
683.6
666.6
649.3
632.7
616.5
600.5
585.1
569.7

PAGE TOP