http://www.channeleco.com/en/Item/Show.asp?m=1&d=1272

Specifications
Tipping bucket Flowmeter
|
Model
|
QT-50ml
|
QT-100ml
|
QT-1000ml
|
Sensor type
|
Tipping bucket with magnetic reed switch
|
Output
|
Contact closure
|
Cable length
|
3 m
|
3 m
|
3 m
|
Capacity
|
50 ml
|
100 ml
|
1000 ml
|
Size
|
30 cm L * 220 cm W *30 cm H
|
30 cm L * 220cm W *30 cm H
|
26 cm L *40 cm W *60 cm H
|
Material
|
SUS304 stainless steel \ aluminum alloy
|
Orifice diameter
|
20 mm
|
20 mm
|
50 mm
|
Weight
|
4 Kg
|
4 Kg
|
7Kg
|
Temperature Measurement
|
Measurement range
|
-20~+70℃
|
Accuracy
|
±0.53℃(0~50℃)
|
Resolution
|
0.14℃(25℃)
|
Drift
|
0.1℃/year
|
Response time
|
10 min, usually 90% (2 m/s air flow)
|
Data Logger
|
Timestamp resolution
|
1.0 s
|
Time accuracy
|
1 min / month (25 ℃)
|
Operating temperature
|
-20~+70℃
|
Power
|
CR-2032 3V lithium battery, usually can last for one year
|
Storage capacity
|
64KB: 16K ~ 23K for recording events, 25K ~ 30K for recording evens and temperature
|
Material
|
polypropylene shell; Stainless steel screws; Buna O-rings, PVC cable insulation
|
Weight
|
50 g
|
|
|
|
|
|
Origin: China
bio-equip.cn
For the purpose of introduction and promotion of global advanced instrumentation and technology in the fields of terrestrial ecology, aquatic ecology and life science, Channel Technology Group Limited was established in 2001.
Channel now employs over 70 staff with a wide spectrum of expertise, so as to offer world-class total solution to customers. With sheer dedication and commitment from our staffs, Channel has evolved rapidly from a pure distributor of environment testing products to a total solution provider in all aspects of ecology, water and life science testing products. We offer in-house expertise in sales, installation, repairs & maintenance, training, technical consultation & testing support. As well, a calibration centre has been set up to provide professional services to our customers.
Our Business Scope:
- Terricolous Ecology: includes soil instruments, plant instruments and environment instruments, etc.
- Aquicolous Ecology: includes respiratory instruments and water quality instrumentation.
- Water treatment: measuring active sludge respiration, Dissolved Oxygen, TP, TN and COD,etc.in the water.
- Life Science: measuring animal respiration and insects physiology and behavior.
Channel strives to achieve our philosophy:“Perfect Services Reflect the Value of Channel”. We firmly believe that customers come first. We listen to customers to find out their needs, design and deliver total solution for them. Our customers contain:
- Renowned universities and various research institutes;
- Various local & municipal government organizations,
- Famous Farms and factories.
With our philosophy, strong business network & coverage, and experienced professional team, we are capable of becoming the best total solution provider in whole China and making good contributions towards improvement of the entire agronomy, forestry, hydrology, ecology research and environment protection.