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Bulletin TE-VT-300
Model VT-300 Miniature Vane Thermo-Anemometer
Specifications - Installation and Operating Instructions
The Model VT-300 Miniature Vane Thermo-Anemometer measures air velocity
air volume temperature and humidity inside air ducts This meter includes a
telescoping vane probe that is only OT (18 mm) in diameter that allows duct
traverse measurements up to 20· ducts User-selectable units include ft/min mis
knots mph and km/hr The vane probe has a built-in sensor to record temperature
in °F or •c as well as humidity in %RH There are three modes which include
viewing data in real time manual recording and automatic recording Model VT-300
can store measurements that can later be transferred to a PC via RS-232
communication The vane probe is detachable for easy replacement if necessary
or as an addition to Model 9671 Each unit is supplied with a hard carrying case
batteries logging software CD USB to RS-232 cable and instruction manual
BATTERY INSTALLATION
Model VT-300 requires ( 4) AM batteries for use To install or replace batteries
open the back compartment and remove the current batteries if applicable nsert
new batteries being aware of correct polarity
The battery icon will appear on the LCD when the power is low and the batteries
will need to be replaced
METER SETTING
Before measuring check the meter setting to confirm that the basic settings of the
meter are what is needed (change them if necessary) To enter the settings
function from the welcome screen press F4 (SET)
To change settings
1 Press the arrow buttons to shift between the variable settings
2 Press F2 (EDT} to enter modification mode f the setting changes using
numbers press the corresponding number on the keypad
3 Press F4 (NEXT or BACK) to enter the next or previous page
4 Press F1 (EXT ) to return to the main menu
1-23/64[34.73]
SPECIFICATIONS
AIR VELOCITY
51 /64 TELESCOPING [20.13]
9VDC
PS/2 PLUG
POWER PORT 1/8"RS232
314 PORT
[19.05]
Range: 98 4 to 3937 ft/min (0 5 to 20 mis)
Accuracy: ±3% of reading + 0 2 mis
Resolution: 0 1 mis
Response Time: 1 s
TEMPERATURE
Range: -4 to 140°F (-20 to 60°C)
"L"
Retracted 11-27/32" (301 mm)
Extended 18-114" (946 mm)
Accuracy: ±1°F (±0 6°C) from -4 to 122°F (-20 to 50°C) ±2 2°F (±1 2°C) from
122 to 140°F (50 to 60°C)
Resolution: O 1°F (0 1°C)
Response Time: 60 s (typ)
RELATIVE HUMIDITY
Range: O 1 to 99 9% RH
Accuracy: ±3% RH at 25°C (10 to 90% RH) ±5% RH (0 1 to 10% RH 90 to
99 9% RH)
Resolution: 0 1 % RH
Response Time: 60 s (typ)
AIR VOLUME
Range: Oto 99 999 (CFM or m'ls)
Resolution: 0 1 (0 to 9999 9) or 1 (10 000 to 99 999)
WET BULB
Range: -7 6 to 158°F (-22 to 70°C)
Resolution: O 1°F (0 1°C)
METER
Temperature Limits:
Operating 32 to 122°F (Oto 50°C)
Storage -4 to 122°F (-20 to 50°C)
Humidity Limits:
Operating <80% RH
Storage <90% RH
Display: 1 x 1 8" (26 x 45 mm)
Serial Communications 9600 bps 8 data bits no parity
Power Requirements: ( 4) AM 1 5 V alkaline batteries included user
replaceable
Battery Life: 100 hours
Vane Diameter: 0 T (18 mm)
Weight: 7 41 oz (210 g)
Test Equipment Depot - 800.517.8431 - 99 Washington Street Melrose, MA 02176
TestEquipmentDepot.com
To start logging after the logger has been set up 1 From home screen press F3 (LOG) 2 P ress F2 {START) 3 While logging press F2 (MEAS) to see what the measurements are in real time or press F4 (V EW) to see the specific data points 4 To stop logging press F1 (STOP)
Welcome
!
1111)11■ V: T: RH: WBT: VOL:
•=k◄ii lll� ... !!11!!'!1·+·�'!!1;jl!"!!l1 &Iii Hi=ti•!
Logging ...
Mk•)=I ili=t+i#J
■ 29.7t l\'Jm V: 0.7MPS
26.1'c 0.1 CMM
! ! mm 01-01 oo 11 28
V: 0.7MPS
T: 29.7t RH: 73.7% WBT: 26. 1t; VOL: 0.1CMM
11& ma am
To see the recorded data points press F4 (NEXT) Then press F1 (P-PG) to review the previous 100 points or F2 (N-PG) to review the next 100 points Use the arrows to view each point individually
1111►4 07-01 00:11 :28 V: 0.7MPS T: 29.7C RH: 73.7% WBT: 26.1°C VOL: 0.1CMM 11i=1111i�4111i1111i ·t1 ... i=t!!!■!�lll!!I
liiDi Hi::J=i• !
1111►4 07-01 00:11 :28 V: O.?MPS T: 29.?'C
RH: 73.7% WBT: 26.1°C VOL: 0.1CMM
"1=1-1-u.. ·•·@·el'!!@"D!!W
! &II 01-01 oo 11 28
V: 0.8MPS
T: 30.2t RH: 71.6% WBT: 26.2t; VOL: 0.1CMM
11& ma am
i=t44M J, mm 01-01 oo 11 28
V: 2.3MPS
T: 35.St RH: 76.4% WBT: 31.9t; VOL: 0.1CMM
Ii& ma
Test Equipment Depot - 800.517.8431 - 99 Washington Street Melrose, MA 02176
TestEquipmentDepot.com
©Copyright 2014 Dwyer nstruments nc Printed in US A 12/14 FR# 444220-00
I
Test Equipment Depot - 800.517.8431 - 99 Washington Street Melrose, MA 02176
TestEquipmentDepot.com