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Main Specifications
Item Code
080040-710
Model LV-250R
Particle Separation
Classification
PM2.5 (Cut 50 % of 2.5
μ
m particles)
Suction Flow Rate
16.7 L/min (10.0 to 20.0 L/min controllable)
Instantaneous Flow
Rate Display Range
5.0 to 50.0 L/min
Constant Flow Rate
Operating Range
16.7 L/min: 0 to 30 kPa
Total Flow Rate
Display Range
0.000 to 999.999 m
3
Display Range of Set
Time
0.00 to 999.59 (hours.minutes)
Time Setting/Display
YY/MM/DD hh:mm:ss (year/month/day hour:minute:second)
Ambient Pressure
Display Range
800 to 1100 hPa
Pressure Loss
Display Range
0.0 to 50.0 kPa
Temperature Display
Range
-10.0 to 50.0
°
C
Filter
47mm dia. (PTFE, quartz fiber)
Built-In Flow Meter
Mass-flow sensor
Sampling Start
(ON) Timer
Manual
This is used to manually operate the pump.
(Data is not logged in chronological order at 1-minute intervals.)
Delay
Time
This is the delay time timer. This is used to start sampling after the preset
time has elapsed.
Start Time This is the start time timer. This is used to start sampling at the preset time.
Sampling Stop
(OFF) Timer
Manual
This is used to manually operate the pump.
(Data is not logged in chronological order at 1-minute intervals.)
Run Time
This is the run time timer. This is used to stop sampling after the preset time
has elapsed.
Stop Time
This is the stop time timer. This is used to stop sampling at the preset time.
Total
Volume
Total flow rate timer. This is used to stop sampling when the preset total flow
rate value is reached.
(Data is not logged in chronological order at 1-minute intervals.)
Thermometer Thermistor
Pressure Gauge
Semiconductor sensor
Suction Pump
Diaphragm pump
Display Liquid
crystal
display
Display Item
Flow rate (instantaneous, average, fluctuation coefficient, total),
ambient temperature, ambient pressure, filter temperature, filter pressure loss,
date, time,
fault occurrence
Output RS-232C
(optional)
Data Logger Time
Approx. 5 days max. (Sampling count: Up to 99)
Operating Temperature
/ Humidity Range
0 to 40
°
C
10 to 90 % rh (no condensation)
Power Supply
100 VAC, 50/60 Hz, 2 A, 24 VDC (optional)
Dimensions
(main unit)
400
W
×
320 D
×
1414 H mm, Sampling height 2 m or 3 m
Weight
Approx. 15 kg (main unit), Approx. 12 kg (stand)
Material
Main unit case: Aluminum Stand: SUS304, Aluminum
Filter holder: POM, SUS304 Filter holder support: Aluminum
Accessories
PM10 impactor 1, PM2.5 impactor 1
Filter holder 1, 2 A fuse 1