What is excitation?

Excitation (magnetic)

An electric generator or electric motor consists of a rotor spinning in a magnetic field. The magnetic field may be produced by permanent magnets or by field coils. In the case of a machine with field coils, a current must flow in the coils to generate the field, otherwise no power is transferred to or from the rotor. The process of generating a magnetic field by means of an electric current is called excitation.

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Battery Powerbank Vivis 5200maH

How much you paid for this stuff? Last week I bought this Vivis powerbank at Lowyat. This powerbank cost me about RM95.

Spec:

• 5200mah high capacity rechargeable li-ion battery
• battery level ondicator
• pocket size
• o/p current 1A
• i/p curren 0.8A
• o/p voltage 5V
• i/p voltage 5V

Why need this power bank? This is because i am a traveller. That powerbank should be enough for me to charge at least 3 times my phone.

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Exact Duplicate File Detector

What is the exact duplicate file detector? It is a software to remove the headache duplicate files in our PC. There is a lot of software in the internet and easy to find. Just want to try this as doing this will ease my jobs and files in the PC are manageable in a proper way.

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Phasing Sticks or Digital Voltmeter 11kV & 33kV

Phasing Sticks or Digital Voltmeter 

Phasing stick is used in high voltage installation for phase testing between two terminals before connection is made. It is also used as a voltage indicator for 11kV installation. 

Main component 

1. Live Conductor Tester
2. Phasing Rod
3. Proving Unit 
4. Extension Rod
5. Test leads 
6. Casing 

Which brand is better? Seawards or Transcat?




Above is the video on how they use the phasing sticks.

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Vegaflex 86

Level measurement up to +450 °C with new guided wave radar VEGAFLEX 86
Refractory ceramic and stainless steel combined with the latest level measurement technology –
that’s the new VEGAFLEX 86. Developed for extreme industrial applications, this GWR sensor
measures liquids safely and reliably up to an operating temperature of +450 °C and a process
pressure of 400 bar.

Master of all classes
VEGAFLEX 86 is ideal for level and interface measurement of liquids. It delivers accurate and reliable
results even in extreme temperatures from -196 to +400 °C and process pressures from -1 to +400
bar – in steam boilers as well as in bypass tubes or standpipes. Thanks to its ability to measure
products with a minimum dielectric constant of 1.4 and higher, its application range is virtually
unlimited.

Product selection and setup made easy
The versions with cable, rod or coaxial probe and standard process connections such as threads from
G1½ A (1½ NPT) and flanges from DN 50 (2") allow installation on any container or tank. The
electronics versions are 4 ... 20 mA/HART, Modbus, Profibus PA and Foundation Fieldbus – to
ensure simple connection to any process control system. In addition, the single and double chamber
housings of plastic, aluminum and stainless steel make it possible to create an instrument version
suitable for any process environment.

Setup wizards and new, intelligent signal processing functions also facilitate setup and commissioning
and ensure stable, accurate readings. Since it was developed according to
IEC 61508, the sensor meets the requirements of SIL2 and SIL3, when deployed in homogenous
redundancy. A welded, gas-tight feed through (Second Line of Defense) brings additional safety to
facilities handling hazardous materials. Last but not least, the standard approvals for explosion
protection in gas and dust, for example ATEX and FM, round out the selection options.

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Lenovo 64GB ThinkPad Tablet 2 3679-27U 10.1" Tablet

Lenovo Think Pad Tablet 2?

Specifications:

•     1.8GHz Intel Atom Z2760 Dual-Core
•     2GB of 800MHz LPDDR2 RAM
•     64GB eMMC Flash Storage
•     PowerVR SGX545 Graphics
•     10.1" HD Capacitive Touchscreen
•     1366 x 768 Native Resolution
•     MicroSD Card Slot
•     802.11a/b/g/n Wi-Fi, Bluetooth 4.0
•     Front 2MP Camera, Rear 8MP Camera
•     Windows 8 Pro (32-bit)

I intend to buy this tablet. Although the performance is quite slow compared to normal laptops but it should be okay and enough for me...

Anything you're free to run on Windows XP, Vista or 7 will run flawlessly on this tablet. This is what I heard from the seller...

 

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VEGAFLEX 81 – the new TDR sensor for liquids Some Guided wave

Guided wave radar for level and interface measurement of liquids
The next generation of VEGAFLEX TDR sensors are on their way to SMM. The new 80 series
devices combine powerful hardware, smart electronics and robust mechanics into one single unit.
VEGAFLEX 81 is the flagship for reliable level measurement in liquids.

VEGAFLEX 81 is suitable for level and interface measurement in all liquids – in slop and deck tanks
as well as in bypass tubes or standpipes. Operating in temperatures from -20 to +200° C and process
pressures from -1 to 100 bar, the sensor ensures accurate and highly reliable measurements. As a
member of the plics® family, it combines all the advantages of VEGA’s service-proven sensor
concept: available in rod, cable and coax versions.
Cost savings right from the start.

The guided wave radar sensors are delivered ready calibrated. A quick-start function guides the user
through the relevant settings in a few easy-to-follow steps. Through a simple adjustment in the
electronics, the sensor can output level or interface signals.
New features for safer operation.

The intelligent signal processing automatically detects changes in process conditions and adjusts
itself dynamically to them. This enables reliable overfill detection and dependable measurement under
difficult process conditions. The automatic probe end tracking function allows measurement of media
with a dielectric constant of less than 1.6. Integrated memories for measured values, events and echo
curves provide information on all important sensor and process conditions.
For applications in toxic or hazardous media, the guided wave radar sensors are equipped with a gastight feed-through (second line of protection).

To ensure dependable maintenance and servicing, VEGAFLEX 81 has asset management functions
based on NE 107 recommendations. In addition, diagnostic information such as measured values,
events and echo curves are permanently saved in the sensor electronics.

And of course the sensors have all necessary ship approvals such as ABS, BV, CCS, RINA, DNV,
GL, LR, NK as well as explosion protection approvals, e.g. ATEX, FM, etc.

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