Hi sir/madam
Glad to know your company from the internet .
This is Eric from Changai electronic science & technology Co.,LTD in China. We are specialized in gas sensor ,analyzers & systems for 10 years, hope to find a way to cooperate with you!
Please find the pictures and information of our Portable trace hydrogen analyzer , If you had any intreasting , kindly contact with me .
1. Introduction of GNL-400 Process Trace Hydrogen Analyzer
GNL-400 process trace hydrogen analyzer adopts imported high-performance electrochemical sensor with latest micro computer technology. It has such functions of LCD display, upper & lower alarm, signal output and relay contactor alarm output. And can be used to measure the hydrogen concentration in air, nitrogen, oxygen and argon.
2. Features:
1.Latest trace hydrogen tester
2.Big LCD screen, concise menu
3.Connecting to the printer to print the hydrogen concentration in a certain terminal
4.Automatic data storage in a certain interval time, and browsing data at any time
5.It can achieve two-way communication by connected to a computer via the standard RS232 interface
6.Setting upper and lower alarm values arbitrarily during the measurement range.
7.Calibrating by standard gas
8.0-10mA or 4-20mA electrical current output
3. Technical Specifications
Measure Range: 0-50ppm, 0-500ppm, 0-5000ppm H2
Accuracy: ±5% in FS range
Repeatability: 2%
Response Time: 90% of FS reading ≤40 seconds
Contact Capacity: 250VAC/1A
Signal Output: 4-20mA DC or 0-10mA DC
Power Supply: 220±10% VAC, 50Hz±5%
Working Temp.: 0~+45oCSample Gas Flow: 300~400ml/mim
Sample Gas Pressure: ≤0.2MPa
Warranty: 12 months analyzer; 12 months sensor
Installation Dimension: 133mmx133mmx250mm (WxHxD)
Weight: 2.5kg
4. Applications
The process trace hydrogen analyzer can be used to measure the trace hydrogen concentration in the fields of nitrogen separation from air, chemical process, magnetic materials such as high temperature sintering furnace gas protection, various mixed gases, and so on.
5. Order knowledge
Measure range
Tested gas pressure
Gas composition and impurity.
Basic PLC Ladder Programming Examples 23 Basic PLC Ladder Programming Training Examples for Beginners. Hi friends, here we are starting unique a series of Free Training on PLC Ladder Programming & tutorials. These PLC Ladder Programs are important to learn basics of Ladder programs. Example 7: Sequential control If we serially connect the normally closed contact of Y2 in example 5 to the circuit of Y1 as an AND condition for Y1 (as the diagram in the left hand side), the circuit can not only make Y1 as the condition for Y2, but also allow the stop of Y1 after Y2 is enabled. Therefore, we can make Y1 and Y2 execute exactly the sequential control Example 8: Oscillating circuit The ladder diagram above is a very simple one. When the program starts to scan the normally closed contact Y1, Y1 will be closed because coil Y1 is Off. When the program then scan to coil Y1 and make it On, the output will be 1. When the program scans to the normally closed contact Y1 again in the n...
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