V-line Industrial Glass Thermometers
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Microelectronics, ESD, Failure Analysis, Reliability Test, Calibration, Measuring Instrument, Technology, Quality Control.
01 September 2009
25 August 2009
28 May 2009
Omega's Lab Calibrator
It can Source/Read Thermocouple, RTD, Voltage, Current and Pressur. Spec and more info are at http://www.omega.com/ppt/pptsc.asp?ref=CL3001&Nav=temw01
15 May 2009
International Protection rating (IP rating)
From: Wikipedia
First digit: The first digit indicates the level of protection that the enclosure provides against access to hazardous parts (e.g., electrical conductors, moving parts) and the ingress of solid foreign objects.
2nd Digit: Protection of the equipment inside the enclosure against harmful ingress of water.
First digit: The first digit indicates the level of protection that the enclosure provides against access to hazardous parts (e.g., electrical conductors, moving parts) and the ingress of solid foreign objects.
| Level | Object size protected against | Effective against |
|---|---|---|
| 0 | — | No protection against contact and ingress of objects |
| 1 | >50 mm | Any large surface of the body, such as the back of a hand, but no protection against deliberate contact with a body part |
| 2 | >12.5 mm | Fingers or similar objects |
| 3 | >2.5 mm | Tools, thick wires, etc. |
| 4 | >1 mm | Most wires, screws, etc. |
| 5 | dust protected | Ingress of dust is not entirely prevented, but it must not enter in sufficient quantity to interfere with the satisfactory operation of the equipment; complete protection against contact |
| 6 | dust tight | No ingress of dust; complete protection against contact |
2nd Digit: Protection of the equipment inside the enclosure against harmful ingress of water.
| Level | Protected against | Details |
|---|---|---|
| 0 | not protected | — |
| 1 | dripping water | Dripping water (vertically falling drops) shall have no harmful effect. |
| 2 | dripping water when tilted up to 15° | Vertically dripping water shall have no harmful effect when the enclosure is tilted at an angle up to 15° from its normal position. |
| 3 | spraying water | Water falling as a spray at any angle up to 60° from the vertical shall have no harmful effect. |
| 4 | splashing water | Water splashing against the enclosure from any direction shall have no harmful effect. |
| 5 | water jets | Water projected by a nozzle against enclosure from any direction shall have no harmful effects. |
| 6 | powerful water jets | Water projected in powerful jets against the enclosure from any direction shall have no harmful effects. |
| 7 | immersion up to 1 m | Ingress of water in harmful quantity shall not be possible when the enclosure is immersed in water under defined conditions of pressure and time (up to 1 m of submersion). |
| 8 | immersion beyond 1 m | The equipment is suitable for continuous immersion in water under conditions which shall be specified by the manufacturer. |
SMD component test tweezers (Multi Contact)
ธรรมดาลูกค้าผมจะใช้ ของ POMONA ขนาดมันเล็ก ลูกค้าให้ลองหายี่ห้อใหม่ให้
ผมเลยลอง searchหาไปเจอ ของ ยี่ห้อ Multi Contact รุ่น 66.9104-120 จาก www.rsthailand.com stock# 248-7702 ราคาใกล้เคียง POMONA สั่งมาดู วัสดุ OK เลย ใช้งานได้ผลยังไงจะแจ้งให้ทราบ
Spec: "Multi Contact" SMD Test Tweezers
Ideal for taking measurements from miniature components such as surface mount boards. The gold plated beryllium contact allows simultaneous measurement to be taken from 2 points of unequal potential. The tweezers feature inter-leaving webs to prevent canting during operation and non-slip finger grips. Supplied with 1.2m of silicone cable to two right angle 4mm shrouded plugs. Maximum 300V, (CAT II) 3A. Lead length 1.2m
20 January 2009
17 Jan 09: Testo 608H-1 in action at Doi Intanon, Chaingmai, Thailand
Yes, it's 0.9 Degree Celcius and Relative Humidity is at 91.1%