U501-B Pulse sensor

U501-B Pulse sensor

This incremental shaft encoder has been designed for heavy-duty application, especially for use in petroleum & diesel dispensing environments where potentially explosive atmospheres can be expected. It features a rugged and compact construction as well as a wide selection of mechanical and electronic variations.

Materials:

Housing: Die cast aluminum alloy

Bearings: Self-lubricating sintered bronze

Features :

A high advantage in reliability and adaptability.

A large selection of shaft couplings, including couplings with built-in backlash clutch facility.

Standard sealing screws.

The fuel resistant cable can be customized regarding length.

Suit the Bennett SB-100 meter and other meters whose pulse per circle is 60.

100% EX approved and tested.

Specifications:

Power supply: 5 VDC, fixed or variable

Current Consumption: Standard 10 to 30 mA, max 90mA

Number of Channels: 2

Number of pulses: 60 ppr

Output Signal: Square wave duty cycle 50%+10%.

Phase Shift: 2 channels 90° (25% +5%)

Output Stage: NPN

Output Current: Max. 30mA

Hysteresis: Min. 0.2°

Output freq. Min. 1000Hz

Temperature range: Working -40 to 70degree

RPM: Max 3000RPM

Mounting: With 3 pcs. M4 screws

Weight: Approx. 340 gram. Excl. the cable

Wiring:

Color Channel plug

Red +5V 2

Green CH1 3

Blue CH2 4

Yellow 0V 5

Package:

Cross Weight Dimension

340g/case of 1 186x157x29mm/case of 1

Approval:

The shaft encoder has been tested and granted Ex and EMC approval.The Ex-approval is EX d IIA T3.Ex certificate number is CE991209.

Ordering Specifications:

Product ID Product name

U501-B pulse sensor

Important:

The products should be used in compliance with applicable country, province and local Laws and regulations. Products selection should be based on physical Specifications and limitations and compatibility with the environmentand materials to be handled. HONGYANG makes no warranty of fitness for a particular use. All illustrations and Specifications in this literature are based on the latest products information available at the time of publication,HONGYANG reserves the right to make changes at any time in price, materials. Specifications and models and to discontinue models without notice or obligation

ystem. The valve core of overflow valve moves outward so that all pressured oil flood past the outlet of overflow valve and flow into suction chamber, realizing oil circulation in pump. The hydraulic system pressure is adjusted through increasing or reducing spring pressure. The most fragile section in hydraulic system will be damaged as the pressure reaching a certain value without a overflow valve to control pressure. The spring pressure will be increased through to add the thickness of pre-pressure ring (20a). The pressure to open overflow valve and the delivery volume of fuel dispenser are also increased. Vice versa, as the thickness is reduced. working principle of inner-cycloidal gear pump Inner-cycloidal gear pump consists of a pair of inner and outer gear joggled interactively. Inner fuel dispenser gear is driver, called as inner rotor; outer gear is driven called as outer rotor. The figure of inner rotor is round arc curve, but the joint section of inner rotor figure and outer rotor curve is exterior cycloidal. Outer rotor exceeds one tooth than fuel dispenser inner rotor. Sever sealed working cubage are formed between teeth of inner and outer rotor. Inner rotor brings outer rotor rotation anticlockwise. At that time the cubage gradually increase, formed in suction chamber by the tooth top of inner rotor and gear vale of outer rotor. fuel dispenser As pressured oil suck into discharge chamber the cubage formed by inner and outer gear is reducing, impelling oil out of pump. Continual suction and discharge result from the unceasing rotation of out gear driven by inner gear. 1-Vapor separator frame 2-Filter bracket 3-Filter 4-Filter bracket 5\6-O-ring 7-Gear group 8-Axis 9-Key 10-Cover 11-Oil seal 11a-Bolt 12-Screw 13-Elastic washer 14-Thread pipe 15-Joiter 16-Inlet filter 17-Stainer cover 18-Seal ring 19-Voverflow valve cover 20-Spring 20a-Preloading ring 21-Voverflow valve 22-Overflow valve 23-Filter with valve 23a-Spring 24-Exhaust pipe jointer 25-Screw 26-Outlet pipe 27-O-ring 28-Pump body Diagram 2-9: One kind of inner cycloida

Internet.　　 It can route data via a particular route to reduce traffic or to bypass a faulty link.　　Appendix A contains a brief introduction to the TCPIP. This section describes how TCPIP protocols are　　implemented in the POS-EPS interface.　　4.6.1 Implementation　　The only requirement for implementing a socket-based solution is a TCPIP stack.　　The implementation is using a connection-oriented (stream) messaging: the system will use separate connections to　　pass card and device messages.　　Connections are always client-to-server rather than peer-to-peer. This means that there are different connections for　　different types of messages. Messages are initiated by the application acting as a TCP client and are processed and　　responded to by the other application acting as a TCP fuel dispenser server.　　The connections are transaction based or short lived: this means that for each requestresponse pair a new　　connection is initiated; for performance reasons due to the possible high number of exchanges per transaction (see　　example on me fuel dispenser ssages flow) the connection will be alive for the transaction duration including all of the messages　　involved by it. The reason for using transaction-based connections is to avoid the need for keep-alive messages and　　logic for detecting connection presenceloss. The client fuel dispenser side of each connection is responsible for initiating the　　connection. The client side is responsible for closing the connection except in error conditions.　　A basic message transport information is added to the XML messages: in order to send and receive variable length　　XML messages a simple message header indicating the overall length of the message must be used. This can be　　implemented as a 4-byte unsigned integer value that immediately precedes the XML message and indicates the　　length of the XML message. This value is transmitted in network byte order. There is no Hex 0 at the end of the　　message included.　　Connection and Message Timeo

not been very thoroughly explored. Only 2,000 wildcat wells have ever been dug in the countries around the Gulf, according to Leonardo Maugeri, an Italian oilman, compared with more than 1m wells in the United States. But if the amount of oil at state oil companies disposal is not much of a worry, the way they manage it certainly is. Few of the princes, politicians and strongmen who wield ultimate authority over these firms can resist the urge to meddle. At best, that leads to the sort of inefficiencies found at most state-owned firms overstaffing, underinvestment and so on. At worst, the business of pumping and selling oil is entirely subsumed by politics, as in the case of Petróleos de Venezuela, one of the biggest NOCs (see article). In either case, NOCs produce less oil, more exp fuel dispenser ensively, than they should. The people s oil, not the bureaucrats That is bad for consumers, of course, in so far as it pushes up the price of oil. But it is also bad for oil- producing countries, which could be squeezing more profit from fuel dispenser each barrel if their NOCs were more efficient. Moreover, there are several NOCs not bound by OPEC quotas, such as Mexico s Pemex and Russia s Rosneft, which would love to boost production to take advantage of the current high price, but are struggling to do so. The easiest fuel dispenser way to improve state oil firms performance would be to privatise them. The authorities, no longer torn between nurturing their NOCs and milking them for all they are worth, could concentrate on maximising their oil revenue through taxes and royalties. Failing that, governments could instil a little market discipline by subjecting their NOCs to competition, either by encouraging them to expand abroad or by allowing foreign firms some access to their home territory. At least, they should grant NOCs operational autonomy, and allow them to retain and invest some portion of their earnings. The less bureaucrats interfere, after all, the more money their oil companies will generate for them to spen