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

-- --- 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.

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.

oil, so as to reduce the volume of drained oil. Turn adjusting bolt clockwise to reduce discharge, anticlockwise to increase discharge. Therefore, changing the position of bolt enable discharge approach academic volume and reach the requirements on measurement transducer of national appraisal regulations. As two regulative bolts access to adjusting piston, the adjusting discharge in a circulation per bolt can be calculated in the following formula: △V = 1/2πd12 nt (2--4 ) △V ── adjusting value in per circulation; D1 ── diameter of regulative piston; n ── turning number of adjusting bolt; t ── screw- pitch of adjusting bolt. There is another metal piston measurement transducer in current market. See the Diagram 2-19. Regulative piston is singularly installed in piston rather than connect with rod in this model. Its adjusting value in terms of per adjusting bolt is: △V = 1/4πd2 nt (2--5 ) Common failure and Troubleshooting Metal piston measurement transducer has the two common failur fuel dispenser es --- accuracy decline and mechanical trouble. Measure accuracy beyond scope The allowed measurement accuracy of fuel dispenser is ±0.3 %, repeated tolerance no more than 0.15 % according to the stipulation of JJG443-98 Fuel dispenser. The maximum allowed tolerance of min. measured valve don’t exceed ±0.5 %，its repeated tolerance no more than 0.25 %. The ratio of maximum flow (Q max.) to minimum flow (Q min.) is 10 to 1. as fuel dispenser leave f fuel dispenser actory. The ratio should not be less than 5 fuel dispenser : 1 in inspecting at operation locale. All of exceeded tolerance is regarded as beyond measurement accuracy. There are many elements and reasons resulting in measurement accuracy beyond scope, including unstable hydraulic system (extensive pressure fluctuation), electric system failure, thick colloid in frictional interface, measurement transducer abrasion, etc. The last two reasons will mainly be introduced in this article. Regulating adjusting

SalesItems: mandatory (gift codes).　　 Loyalty: yes (Card PAN or track optional: mandatory if managed in a separate　　 loyalty swipe).　　 OriginalTransaction: no.　　 CardPaymentLoyaltyRedemption Loyalty redemption with optional payment integrated functionality; this allows even　　 the ratio pointsmoney to be decided centrally by the host). The assumption is that　　 redemption will be on-line and necessary data is in the host.　　 TotalAmount: optional (points decided by the customer).　　 SalesItems: mandatory (gift codes).　　 Loyalty: yes (Card PAN or track optional: mand fuel dispenser atory if managed in a separate　　 loyalty swipe).　　 OriginalTransaction: no.　　 PaymentReversal OriginalTransaction data necessary no other. Original requested Payment will be　　 reversed.　　 TotalAmount: n fuel dispenser o.　　 fuel dispenser SalesItems: no.　　 Loyalty: no.　　 OriginalTransaction: Mandatory　　 PaymentLoyaltyReversal OriginalTransaction data necessary no other. Original requested Payment and　　 loyalty award will be reversed.　　

e reinforcement loop and bringing in so-called pain-incompatible memories, traces of pain in the brain can be reduced or even extinguished. If Dr Flor s memory hypothesis is correct, revolutionary approaches for treating chronic pain may be on the horizon. This will be wonderful news for millions of people suffering from this condition. After all, pain is all in the mind. Indeed, pain itself is an illusion, a phantom in the brain. The brain, therefore, may be a good place to start chasing away this ghostly and debilitating sensation.  © 2006 .  About sponsorship Imaging techniques Reading the invisible Jul 20th 2006 From The Economist print edition The last few pages of an ancient Greek manuscript are about to be unveiled ARCHIMEDES of Syracuse is hailed by some as the greatest mathematician of antiquity. Ignoring a clunky numerical system and devising his own, he demonstrated the nature of infinity and calculated a value for pi. He realised that the volume of an object can be measur fuel dispenser ed by how much water it displaces, a discovery he is said to have made in the bath and which caused him to run naked through the streets of the city shouting “eureka�(“I have found it�. Now, a new use for an old particle accelerator is poised to reveal more of his thoughts. Starting on July 26th, researchers at the Stanford Synchrotron Radiation Laboratory in California, led by Uwe Bergmann, will attempt to read the final pages of the oldest fuel dispenser known manuscript of Archimedes s work, the fuel dispenser Archimedes palimpsest. Archimedes lived in the third century BC but, in the tenth century AD, a scribe copied out his works. Two hundred years later, the book of 90 pages was unbound and washed so that the goatskin parchment could be reused, producing what is known as a palimpsest, in which the older writing is sometimes visible under the new. The leaves were folded in half to produce a volume of 174 pages, and Christian prayers were inscribed in it. For