U501-A Pulse sensor

U501-A 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+ 70 degree

RPM: Max 3000RPM

Mounting: With 3 pcs. M4 screws

Weight: Approx. 340 gram. Excl. the cable

Wiring:

Color Channel plug

Green +5V 2

Black CH1 3

Yellow 0V 4

Blue CH2 5

Red +5V 6

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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.

Package:

Cross Weight Dimension

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

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 ilable 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.

l gear pump Trouble and Maintenance The mainly troubleshooting and failure about pump presents in Table 2-1. Table 2-1 Troubleshooting Serial No. Failure Failure reasons Solutions 1 No delivery or inefficient discharge Exterior elements: Motor stick; motor reversal; Sliding V belt; no oil in tank; pipe jammed; Check motor and its wiring; tighten V belt; inspect tank; dredge pipeline. Gear being stuck Clean waste in pump chamber Waste in outlet of overflow va fuel dispenser lve Disconnect overflow valve lid and clean waste; Leakage on valve Check oil groove Overweary gear or bearing Replace gears or bearing 2 Large noise or tremble Exterior reasons: Too long horizontal distance between fuel dispenser and tank; many elbow on inlet pipe; waste jam pipe; small diameter of pipe Dealt with in design fuel dispenser and construction Intensive pressure Decrease thickness of pressured ring Overflow valve fuel dispenser is stuck Clean waste and burr Overweary gear or bearing Replace gears or bearing 3 Inner leakage Overweary gears Replace gears Leakage on frame seal Frame seal disabled Replace frame seal Leakage on pump body or joint face O-ring disabled Substitute seal ring 2.5 Important notices in operation Often inspect the rotation of pump axis, leakage, abnormal noise, vibration on V wheel and lose bolt that tight pump key. Regularly clean strainer. The tightness of V wheel should be appropriate, neither too tight nor too loose. These V wheels of motor, pump and adjusting driven wheel should be in parallel level. Don’t adjusting overflow valve spring too tights in case that result in high pressure of hydraulic system, increase noise and vibration so as to enhance pump abrasion. Prohibit suck water or oil with much water. Strictly abide by the operation requirements on explosive atmosphere. Submersible pump In China filing stations recently begin to adopt submersible pump as the power resource of fuel dispenser. Submersible pump gen

or specific fields　　 48-0 Bit map for data elements in bit 48 b 8 Specifies which data elements are present　　 48-3 Language code a 2 Optional　　 48-4 Batchsequence number n 10 Mandatory echo. Current batch sales report　　 number used to group a number of　　 fuel dispenser transactions for day-end reconciliation　　 purpose　　 48-40 Encryption Parameter b 8 Conditional if card scheme requires it　　 53 Sec fuel dispenser urity related control information LLVAR b ..48 Conditional　　 59 Transport fuel dispenser data LLLVAR ans ..999 Conditional echo　　 62-1 Allowed product sets LLVAR ans ..99 Length always set to zero if element 62 exists　　 for this message　　 62-2 Device type n 1 For what device 62-3 is to be sent to (see　　 appendix A.8)　　 62-3 Message text LLLVAR ans ..894 Display receipt or consol text.　　 64 Message authentication code b 8 Mandatory　　 Wednesday 10 May 2006 - Revision 03　　Document title　　IFSF POS to FEP Interface　　Section Page　　Message Content 59178　　5.4 Reversal messa

il for Venezuela. Rather than the “anti-imperialist�struggle abroad, says Mr Rosales, what needs attention is rampant crime, a housing shortage and persistent unemployment at home. His campaign features a debit card which he says he would use to distribute 20% of oil earnings directly to the poorest members of society. “That s much less than what this government has given to other countries,�he claims. The card could be a vote-winner. Polls show big majorities against the foreign handou fuel dispenser ts Mr Chávez uses to gain allies for his crusade against the United States. That, in the view of his opponents, was why Mr Chávez this week snubbed London s mayor, Ken Livingstone, cancelling his planned trip to Caracas at the last minute. The British leftist was to sign a deal that would swap cheap diesel for London buses for advice on crime, waste fuel dispenser disposal and the like. Venezuela s foreign minister will now sign the deal in London. Mr Rosales la fuel dispenser cks Mr Chávez s skill as a communicator. But like the president, he comes from a humble background. Unlike him, he is happily married. Several of his ten children are adopted. His wife Eveling is an accomplished campaigner. The government derides him as a typical product of the discredited pre- Chávez era. But he broke with the dominant party of that era in the early 1990s. If he can create a strong enough organisation to hold the opposition together even in defeat, he will have achieved more than its last two presidential candidates. There will be opportunities ahead. With deepening social discontent and falling oil prices, Mr Chávez s “revolution�is likely to run into trouble. © 2006 .  About sponsorship Audacious Canadian initiative Joining the rotary club Nov 9th 2006 | OTTAWA From The Economist print edition An exotic means of controlling traffic ONE afternoon last month roadworkers removed the covers from Yield signs at a newly built roundabo