Description
ST 619 Standard in Pakistan
ST 619 Standard
FEATURES:
· Highly sensitive and accurate
· Easy-to-use design
· 3 1/2 digit LCD display
· Type K sensor for temperature measurement
· Low power consumption
· Data hold and MAX hold function
· Low battery indication
· Display Air Flow or Air velocity with temperature simultaneously
· 20 points average for airflow
· Continuous moving average for up to 2 hours
· Low friction ball bearing vane wheel for high accuracy
SPECIFICATION:
Circuit
Custom LSI microprocessor circuit
Measurement units
Air Velocity: m/s, ft/min, km/h, MPH, knots;
Air Flow: CFM(ft3/min), CMM(m3/min);
Temp: deg F & deg C
Display
Display Type: LCD
Display Size: 42 X 54mm
Data hold
Freezes displayed reading
Sensors
Air velocity sensor: conventional angled vane arms with low-friction ball bearing.
Temperature sensor
NTC-type thermo resistance
Sampling rate
1 reading per second approx.
MAX/MIN Memory
Record and view Maximum and Minimum readings
Automatic Power off
Auto shut off after 20 minutes to save battery
Operating Temperature
32 deg F to 122 deg F (0 deg C to 50 deg C)
Operating Humidity
MAX. 80%RH
Power Supply
9V battery
Battery Life: 100 hours approx.
Power current
Approx. 2.5mA DC
Weight
1.0 lbs(0.49kg) including battery & probe
Dimentsions
Main instrument: 178 X 84 X 45mm
Sensor Head:70mm Diameter
Accessories:
Users manual ;
Protective rubber holster;
Vane sensor with 3.9ft(120cm) cable.
Units
Range
Basic Accuracy
m/s
0.4 ~ 3.0
3%
Knots
0.8 ~ 58.0
3%
Km/hr
1.4 ~ 108.0
3%
Ft/min
80 ~ 5900
3%
MPH
0.9 ~ 67.0
3%
Air Flow (CFM: ft3/min)
0 ~ 999.9
Air Flow (CMM: m3/min)
0 ~ 999.9
Temperature deg C
-10 ~ 60
+/- 2 deg C
Temperature deg F
14 ~ 140
+/- 4 deg F