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Posted on 2012 年 3 月 20 日 by admin | Leave a reply measurement of distance from surface level of water to the sensor (LEVEL SENSOR) in a TANK, DEEP WELL, RIVER, POND, LAKE and even OCEAN (for ships). I will send an approximate rough details of the sensor when someone contacts with an offer. However the main features of the sensor should be: 1. Able to measure distance upto 25 meters with ACCURACY OF 3 – 5 MILLMETERS 2. Should be able to work on water/liquid 3. Should be able to work in extreme conditions (very high and very low temperature) 4. The sensor should have inbuilt feature to avoid false echo and false readings 5. Output should be preferably digital but conventional 4 – 20 mA will also do. CONTACT EARLY SINCE REQUIREMENT IS URGENT. ” 联系方式 “Co:Indian Water Conservation Project & Co. Add:7 Siddarth Enclave GMS Road Ballupur Near Wadia Institute, Dehradun, Uttarakhand, India 248001 Tel:91-135-2620-904 Email:sandeep.mookerjee@gmail.com,sandeep.mookerjee@hotmail.com Skype:sandeepmookerjeedehradun001 联系人：Mr. Sandeep Mookerjee国家：India” 产品类别 电子通讯 Email sandeep.mookerjee@gmail.com 采购主题 LED digital indoor clock 采购内容 “ Looking for LED digital indoor clock. 1) 16′ digit height, 88:88 red color with GPS Satelite synchronizaiton 2)5′ digit height 88:88 Amber color with GPS Satelite synchronizaiton please send the price and pictures, also the shipping expenses to Riga, Latvia. ” 联系方式 “Co:Amberled Ltd. Add:Miesnieku 8, Riga, Latvia LV-1050 Tel:371-67-22-0373 Fax:371-67-22-0374 Email:kristians@amberled.lv 联系人：Kristians Grundtok国家：Latvia” 产品类别 电子通讯 Email kristians@amberled.lv 采购主题 Modern Outdoor Lighting Poles 采购内容 “ I am Interesting Modern Outdoor Lighting Poles. Please I want to know more than its product. is able please to send me a catalogue. thanks. ” 联系方式 “Co:RACSA CO Tel:2287-0343 Email:jeugalde@racsa.co.cr Website:http://www.racsa.co.cr/联系人：Jessica Ugalde Murillo国家：Croatia” 产品类别 电子通讯 Email jeugalde@racsa.co.cr 采购主题 Prepaid Energy Meter 采购内容 “ Require Pre-Paid energy meters – Single Phase and three phase for India. Please send Technical Documents and Brochure. ” 联系方式 “Co:Adroit Control Engineers P ltd Add:A-105, DDA Sheds, Okhla Industrial Area, Phase-II New Delhi – 110020 Tel:011 47600700 Fax:011 47600701 Email:sales@adroitcontrol.com Website:http://www.adroitcontrol.com 联系人：etty国家：India” 产品类别 电子通讯 Email sales@adroitcontrol.com 采购主题 pet Coke 采购内容 “ Right now, there is huge requirement of Raw pet coke in India. If you have Raw pet Coke in bulk and you are interested to export to India. We can assure you about our best possible service to market your products. Looking forward for your kind advice. With warm regards ” 联系方式 “Co:KSBM International Add:Navi Mumbai, India Tel:919967017028 Email:sukhendumandal@hotmail.com Website:www.ksbminternational.com联系人：Sukhendu Mandal国家：India” 产品类别 电子通讯 Email sukhendumandal@hotmail.com 采购主题 LED Flashlight/Torch 采购内容 “ Inquiry about Model 50B Aluminum LED Flashlight/Torch . For example: http://www.dealextreme.com/details.dx/sku.29435 http://www.dealextreme.com/details.dx/sku.19767 http://www.dealextreme.com/details.dx/sku.30864 http://www.dealextreme.com/details.dx/sku.28677 http://www.dealextreme.com/details.dx/sku.13820 Please send me your small wholesale price for flashlights. Im from Ukraine and want to sell your goods here. Best regards ” 联系方式 “Co:Fonarik Tel:380-063-8450363 Email:sergei.ukr@gmail.com联系人：r.Sergei国家：Ukraine” 产品类别 电子通讯 Email sergei.ukr@gmail.com 采购主题 Electrical Rotating Indicator 采购内容 “ We are looking for this electrical rotating indicator. The electrical rotating indicator powers a single or two 4-20mA pressure sensor, which are connected by 2 wire. The indicator for 2 pressure sensors have 2 dial pointer – a separate for each pressure. By this it is very easy to compare the 2 pressure. The indicator are required in 3 different dimensions (60mm, 80mm, 100mm). PLEASE SEE ATTACHED FILE! Electrical Rotating Indicator.pdf ” 联系方式 “Co:Hydrotechnik GmbH Add:Holzheimer Stra&Szlig;E 94-96, Limburg, Hessen Tel:49-6431-40040 Fax:49-6431-45308 Email:purchasing@hydrotechnik.com Website:http://www.hydrotechnik.com 联系人：Mr. Tobias Hempel国家：Germany” 产品类别 电子通讯 Email purchasing@hydrotechnik.com 采购主题 ensor 采购内容 “ We need an offer about the good, discribed in the appendix. Please send us many offers. 1 General Desc ription This absolute pressure sensor will be mounted in a pneumatic tube. Details of mounting and sealing are still open for discussion. Standard products, which meets most of the following requirements, should be quoted anyway. 2.3.1 General Parameter Min Typ. Max Unit Notes Operating pressure range 0 10 bar Optional pressure range 0 0 5 15 bar 3) Output current, linear 4 20 mA 2) Limits of current output >;2 <;23 mA Operating temperature range -55 85 oC Maximum pressure error over temperature Temperature range -40° C to 85° C -1 +1 %FS 1) Temperature range -55° C to 85° C -1.5 +1.5 %FS 1) %FS Noise of span (16mA) -0.15 +0.15 %FS Step response (0 bar to 65% of pressure Range) <;2 ms Pressure signal stability -0.05 +0.05 bar Load resistor (UV-25V)/ 0.022A (UV-10V)/ 0.022A W Notes 1. Including linearity, hysteresis, repeatability, including temperature error 2. Linear, no output of the output current range if the value is outside the measurement range 3. Calibratable 2.4 Environmental Conditions Degree of pollution: PD3 Vibration resistance: DIN EN 61373: 1999-11, category 1, class B Shock resistance: DIN EN 61373: 1999-11, category 1, class B Fire protection requirements: DIN 5510-2: 2011-10, NF F16-101: 1988-10, NF F16-102: 1992-04, UL 94 V0 Clime resistance: Damp heat DIN EN 60068-2-30 Salt spray test DIN EN ISO 9227 Resistance to weathering DIN EN 50125-1 Altitude: NN to 2000m 1.1 Business Information After introduction to market we target a yearly volume of 3.000 to 6.000 sensors. A quote is required for 200, 3.000, and 6.000 units per year. 2 Technical Specifications All parameters which are not specified are open for discussion but must be fixed in a later revision of This document. 2.1 Medium Gas @ Compressed air with quality category ISO 8573-1-4 4 4 2.2 Absolute Maximum Ratings Parameter Min Typical Max Unit Notes Supply voltage 24 110 VDC Storage temperature ° C Ambient temperature -40 +70 ° C Temperature of media -40 +70 ° C Pressure overload 20 bar 2.3 Characteristics Reference conditions: Supply Voltage VS+ = 24 DC V Reference Temperature: Ambient, 25° C 3 Layout and Drawings Pressure port and dimensions are open for discussion. 4 Electrical Protection and Connections 4.1 Protection IP protection type: IP44 (EN837-1) Overvoltage class: OV2 EMC: DIN EN 50121-3-2 Non-fused earthing: Protection category II or conductive touchable parts must be grounded (for voltages >;50V) Electrical tests: Insulation test, continuity test, high voltage test according PRF8059 4.2 Electrical Connections 4-pin bayonet connector (DIN 72585-1) or 4 pin circular plug-in connector compatible with Binder type 713 M12x1, gold-plated contacts 5 Labeling and Packing To be defined. 6 Certification Certificate of CE Compliance All relevant documents to proof compliance need to be provided if requested by any legal authorities Within 5 working days. ” 联系方式 “Co:Hydrotechnik GmbH Add:Holzheimer Stra&Szlig;E 94-96, Limburg, Hessen Tel:49-6431-40040 Fax:49-6431-45308 Email:purchasing@hydrotechnik.com Website:http://www.hydrotechnik.com联系人：Mr. Tobias Hempel国家：Germany” 产品类别 电子通讯 Email purchasing@hydrotechnik.com 采购主题 Residual Current Breaker With Overload Protection from China 采购内容 “ We’re very interested in RCBO devices. One of our fastest growing divisions is that which supplies electric, electronic, gas and water
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