8
1.
Introduction
TAB master Model 6720 is a kind of intelligent test instrument with multifunctional of air flow test,
velocity test and micro-differential pressure test. It’s widely used in air flow testing of air-conditioning, HVAC
system and other places, especially for the high precision micro-differential pressure test.
1.1 Product Features
◆
4.3inch color LCD.
◆
Measure air flow, velocity, temperature, humidity, atmospheric pressure at the same time.
◆
Two kinds of tests are available for supply flow and exhaust flow.
◆
Back pressure compensation.
◆
Ultra-large storage capacity: 8000 records, which can be printed or transferred to the computer.
◆
Blue tooth communication makes remote monitoring and data transferring available.
◆
Can be connected to a Bluetooth printer, which is to print test data in real time.
◆
Low power consumption. Battery power supply can work continuously for 14 hours. But if no operation
for a long time, it can enter power saving mode.
1.2 Main Specifications
Items
6720 version 1.3
Air Flow
Flow Range
40
～
4300 m
3
/h
Accuracy
Readings ±3%± 8m
3
/h
（＞
85m
3
/h
）
Resolution
1 m
3
/h
Velocity
Test Range
0.15
～
40m/s
（
Pitot Tube
）、
0.15
～
15 m/s
（
Velocity Grid)
Accuracy
Readings ±3%±0.05m/s
（＞
0.25m/s
）
Resolution
0.01m/s
Differential
Pressure
Test Range
-2500~2500Pa
Accuracy
Readings ±1.5% ±0.25Pa
Resolution
0.001Pa
Temperature
Test Range
0
～
60℃
Accuracy
±0.5℃
Resolution
0.1℃
Humidity
Test Range
0~100%RH
Accuracy
±3%RH
（
10~90%RH
）
Resolution
0.1%RH
Atmospheric
Pressure
Test Range
70~130kPa
Accuracy
Readings ±2%
Resolution
0.1 kPa
Operating Temp.
0~60℃
（
no condensing
）
Storage Temp.
-20~70℃
（
no condensing
）
