VMS-3002-ZS-N01 wide measuring range good linearity convenient unoise sensor Noise transmitter RS485 output
The VMS-3002-ZS noise sensor is a high-precision sound
measuring instrument with a range of up to 30dB~120dB, which
meets the daily measurement needs and is widely used in various
fields such as home, office, workshop, automobile measurement and
industrial measurement.
2. Features
This product uses a high-sensitivity condenser microphone with stable signal and high
precision. It has the characteristics of wide measuring range, good linearity, convenient use, easy
installation and long transmission distance.
3. Technical parameter
connected contrary when connecting to 485 signal, and the address among several devices on the
total wire can not be conflicted.
Device can not be connected with PLC or computer
Reasons possible:
1) Several COM ports in the computer, the port be chosen is incorrect.
2) The device address is wrong, or some device addresses are repeat.(all factory defaults are 1).
3) Baud rate, revision mode, data position and stop position are wrong.
4) The main computer and polling interval is too small and time waiting for replying is too short,
and
all need to set over 200ms.
5) The 485 general wire is broken or the A wire and B wire are connected in the wrong side.
6) Too many devices or too long wires, the power need to be chosen nearby, add 485 intensifier,
and add 120Ω
terminal electric resistance.
7) The driver of USB transfer to 485is not installed or damaged.
8) The device is broken.
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Shanghai Qiyi Electrical & Mechanical Equipment Co., Ltd. is a professional rotary encoder supplier, located in Chinese business and port center, Shanghai. CALT brand product ranges: Optical incremental rotary encoder, single-turn and multi-turn absolute encoder, draw-wire position sensor and couplings, and other instruments, which widely used in CNC machinery, textile machinery, steel rolling machinery, linear guide system, hydraulic system, lifting machinery and servo motor, all get a very good reputation! Qiyi company has got independent import and export qualification in 2013, CALT brand products have been exported to Southeast Asia, Europe, America and Russia and other countries and regions in the world.
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Q: Are you trading company or manufacturer ?
A: We are factory.
Q: How long is your delivery time?
A: Generally it is 2-4 days after full payment if the goods are in stock. or it is 7-12 days if the goods are not in stock, it is according to quantity.
Q: Do you provide samples ? is it free or extra ?
A: Generally it is 2-4 days after full payment if the goods are in stock. or it is 7-12 days if the goods are not in stock, it is according to quantity.
Q: What is your terms of payment ?
A: We accept T/T, Paypal, Western union or money gramm.
Q: What's your warranty ?
A: 12 months. If the items you purchased from our company are not with perfect quality or can't work normally, you can ship back for replacement or refund.
Q: What's your shipment method?
A: We ship by Express FEDEX, UPS, DHL, EMS, ARAMEX. All express freight is charged in your end.