Newton Spring Scale

Posted on April 22, 2014 by New Product Gifts

The spring balance actually measures force, but for convenience is calibrated in kg on the basis that when it is used normally [weight force] = m * g where m is the mass in kg and g the acceleration due to gravity. (9.8 m/s^2)

So you just need to multiply the scale reading by 9.8 to get the force measurement in newtons.

1 kg reading => 9.8 N

2 kg reading => 19.6 N etc

Scales measure force…by definition
Balances measure mass.

Scales calibrated in kilograms are only done so for convenience, because we often use them to weigh in Earth standard gravity, and what we really want is the mass, but we cheat by using the scale instead of the balance.

Newtons aren’t a very popular unit in common use outside the study of physics…unfortunately, and so is the distinction of mass vs weight unpopular for one to understand.

For this reason, a 1 kg reading on a spring scale refers to 9.8 Newtons of tension, and it scales proportionally. This refers to the TENSION force with which the spring scale pulls on something.

If used to measure friction force, it is only done so indirectly. Because the target object is, in a good experiment, pulled at constant velocity, forces on it add up to zero, and as such, the tension need fully oppose the friction, should the scale be pulled horizontally and should the surface be flat.

Brass Newton Spring Scales, Heavy Duty

Posted on April 22, 2014 by New Product Gifts

Brass barrel, heavy duty.
Convenient Weight Marker

When ya give this spring scale a tug, the weight marker will slide to the appropriate weight and stay there until ya move it back to zero. This will help ya out when you’re weighing items that are a little on the heavy side. Load, weigh, unload, check your weights…it’s really simple.
This Thing Sure Is Durable

This mechanical scale was built to last. Inside the corrosion resistant housing you’ll find stainless steel components that are attached to the stainless steel weighing hook and hanger. Whether ya want to use this as a fishing scale, hunting scale, bow scale, or just a great general purpose scale, you’re good to go with this Halsun.

So you just need to multiply the scale reading by 9.8 to get the force measurement in newtons.

1 kg reading => 9.8 N

2 kg reading => 19.6 N etc

Spring Scale

Posted on April 22, 2014 by New Product Gifts

Convenient Weight Marker

When ya give this spring scale a tug, the weight marker will slide to the appropriate weight and stay there until ya move it back to zero. This will help ya out when you’re weighing items that are a little on the heavy side. Load, weigh, unload, check your weights…it’s really simple.
This Thing Sure Is Durable

This mechanical scale was built to last. Inside the corrosion resistant housing you’ll find stainless steel components that are attached to the stainless steel weighing hook and hanger. Whether ya want to use this as a fishing scale, hunting scale, bow scale, or just a great general purpose scale, you’re good to go with this Halsun.

So you just need to multiply the scale reading by 9.8 to get the force measurement in newtons.

1 kg reading => 9.8 N

2 kg reading => 19.6 N etc

Mechanical Quadruple Beam Balance Scales

Posted on April 19, 2014 by New Product Gifts

Mechanical Quadruple beam blance scale Quadruple Beam Balance Scale. For Laboratory and Educational Use

MB311 Quadruple Beam Balance

311 gram capacity
0.01g readability
1 centigram accuracy
Agate bearings for long life
3.5” diameter stainless steel pan
Adjustable recessed platform in base can be raised for specific gravity work

This scale has been around for many years. The quadruple beam design is very popular and is used extensively in schools and laboratories. This high quality balance is made with stainless steel and aluminum alloy. These balances are very durable and give better long term service than electronic scales of similar accuracy.

Made of high quality aluminum alloy and stainless steel. Convenient direct beam graduation.

Quadruple Beam scale

Posted on April 17, 2014 by New Product Gifts

The MB311 Single-pan balance is of unequal arm type with 4 beams.The maximum capacity is 311 grams and the readability is 0.01g .It is made of a high quality aluminium alloy ,the knife is made of a high quality alloy and the bearing plane is of agate ,with a stainless steel weighting pan and includes a buit in platform to aid density determination by weighting samples in air and in water .It is widely used for schools and educational establishments, etc.

Quadruple Beam Balance Scale for Laboratory and Educational Use

MB311 Quadruple Beam Balance Scale

311 gram capacity
0.01g readability
1 centigram accuracy
Agate bearings for long life
3.5” diameter stainless steel pan
Adjustable recessed platform in base can be raised for specific gravity work

Laboratory Mechanical Quadruple Beam Balance / Physical Balance / Mechanical Balance

Application:
1. The MB311 Single-pan balance is of unequal arm type with 4 beams.
2. The maximum capacity is 311 grams and the readability is 0.01g.
3. It is made of a high quality aluminium alloy, the knife is made of a high quality alloy and the bearing plane is of agate, with a stainless steel weighting pan and includes a buit in platform to aid density determination by weighting samples in air and in water.
4. It is widely used for schools and educational establishments, etc.
5. Adoption of agate knife edge bearing and specially-treated steel knife effectively improve the sensitivity of the balance.
6. Damping device reduces the oscillation frequency during working of the balance, tarring device facilitates weighing of bulk goods, with 210g/610g/310g riders, it facilitates users’ small amount weighing.

Main technical date:
1.Capacity: 311g
2.Sensitivity(g):0.01g
3Beam Calibrations
4.Front beam :1 x 0.01g
2nd beam: 10 x 1g
3rd beam: 100 x 10g
4th beam: 200 x 100g
5.Damping system: magnetic
6.Stainless Steel Weighing Pan: 100mm (4″)diameter
7.Density platform: 75mm (3″)diameter, adjustable height.
8.”2.92 x 3.15″ (7.42 x 8.01cm) heavy aluminum-look adhesive label on balance
9.Overall size (W x H x D): 370 x 300 x 137mm (14.5″ x 11.8″ x 5.4″).

Quadruple Beam Balance

Posted on April 16, 2014 by New Product Gifts

Quadruple Beam Balance are widely used in industrial and mining enterprises, chemicals, pharmaceuticals, agriculture, machinery, schools and other units for substance use measure.

Model MB-311

Capacity (g) 311

Dividing the value (g) 0.01

Former ruler 1 × 0.01g

Second scale 10 × 1g

Third ruler 100 × 10g

After the ruler 200 × 100g

Net Weight (1 pc) 2.2 kg

Gross Weight (1 pc) 2 .4 kg

Outline 3 6 0× 1 4 0 × 30 0 mm

Out Packing (4 pcs) 75 0× 450 × 37 0 mm ( by carton)

Gross Weight (kg) 10 kg

A quadruple-beam balance is a handy laboratory tool to have when you need to weigh small items to a hundredth-gram precision. The beams are horizontal metal rails that hold sliding counterweights, starting with 100 grams and going down to a tenth-gram. The first beam is furthest back from the user; it holds the 100-gram mass, the second is closer, having the 10-gram, and so on. The tenth-gram beam is marked in .01-gram increments. An adjustable weighted screw on the left lets you precisely zero the scale. On the right is a tilting indicator. It’s vertically centered when the scale’s in balance, otherwise it’s over-or under-balanced.

How to Use a Quadruple Beam Balance

Instructions

1 Slide all the masses to the left most position or detent. With nothing in the pan, the indicator on the right should be horizontal, lined up with the mark. If it’s not, adjust the calibration screw on the left until the scale is completely balanced.

2 Add a few coins to the weighing pan. The indicator will tip up, showing that the scale is now under-balanced.

3 Move the largest mass (100g) right, until the scale overbalances with the indicator tipping downward. Then move it to the left one detent to under-balance it again. If the largest mass won’t overbalance the scale, go to the next step. It’s possible the object you’re weighing is too heavy for this scale.

4 Move the next-largest mass (10g) right, detent by detent, till the scale overbalances, as you did in step 3. Then move it to the left one detent.

5 Move the 3rd mass (1g) right, detent by detent, till the scale overbalances. Move it to the left one detent.

6 Move the smallest mass (.1g) carefully to the right until the scale is completely balanced. If all the masses are completely over to the right and the scale is still under-balanced, your object is too heavy for this scale.

7 Add the masses multiplied by the detents to determine the weight of your object. The first detent won’t count. Read the weight on the tenth-gram scale directly. For example, if the 100-gram mass is at its leftmost (first) detent, the 10-gram is at the fifth, the 1-gram is on the 8th, and the tenth-gram reads .56, the weight is (100 x 0) + (10 x 4) + (1 x 7) + .56 = 47.56 grams.

Tips & Warnings

When moving the first, second, and third masses, make sure they go into the detent notches in their respective beams. The fourth mass (.1 gram) may not have a detent.

How to Read a Quadruple Beam Balance

Using an electronic balance may be the easiest way to determine the mass of an object, but it can be beneficial to learn how to measure mass the old-fashioned way: with a beam balance. While triple beam balances are more common, a quadruple beam balance offers more accuracy. In fact, quadruple beam balances are even more accurate than many electronic balances.

Instructions

1 Calibrate the scale to make sure it reads zero when it is empty. Locate the screw adjustment knob and rotate it until the bar points directly to the middle of the balance.

2 Place the object to be weighed on the balance. Adjust the weights until the bar is pointing directly to the middle again. If the bar is pointing up, your current measurement is too low; if it is pointing down, your current measurement is too high.

3 Record the measurements of the largest three rows first. If one reads zero, disregard it. Read the last row, but be sure to take into account significant figures.

4 Add the readings of all four rows together. This is the weight of the object.

Tips & Warnings

For the smallest row, you have to take into account significant figures. You are allowed to take a one-decimal-place guess. For example, if you know it is past 0.13 but it is not quite to 0.14, you can guess that last decimal place.

If you don’t calibrate the scale to begin with, your readings will be off. Take the time to make sure it is set to zero before you weigh your object.

Triple Beam Scale

Posted on April 12, 2014 by New Product Gifts

MB-2610 is a traditional triple beam mechanical balance. Features a large stainless steel weighing surface and cool white finish. The attachment weight set is included, allowing you to increase the capacity from 610g to 2610g.

The triple beam scales are widely used in industrial and mining enterprises, chemicals, pharmaceuticals, agriculture, machinery, schools and other units for substance use measure.

Model MB-2610 MB-2610B

Weighed (g) 2610 2610

Dividing the value (g) 0.1 0.1

Former ruler 10 × 0.1g 10 × 0.1g

The scale bar 500 × 100g 500 × 100g

After the ruler 100 × 10g 100 × 10g

Peel the range 0 ~ 225g

A durable, classroom proven work horse. Unlike the digital scale, a mechanical triple beam teaches mathematical reasoning skills as students must manipulate the sliding weights for a result. With the 2610g capacity this scale is also handy for home and shop use.

Sometimes it’s nice to have something that doesn’t require batteries or adapters. Here at Old Will Knott Scales we have a mechanical scale to fit almost any application. We have a beam scale and triple beam balance just right for the doctor’s office, school, lab or workshop. We also have a great selection of analog scales for the home kitchen and bathroom. Heavy duty top loading dial scales? We have those, too.

We’re sure to have the perfect beam balance, dial scale or spring scale for you. Check out our mechanical scale subcategories below to narrow your choices.

Pen with Built in Element Chart

Posted on February 13, 2014 by New Product Gifts

pen with build-in element chart,chemical elements periodic table pens,periodic table of elements pens

Pen with Built in Element Chart is a fantastic ballpoint pen combine with a pull out 4 color offset printed chemical element chart printed on both sides sized up to 168*68 MM. By default the barrel will be transparent, thus students can see those pens have a periodic table of elements build-in, thus, can’t help themselves to pull the element chart out to check As Pen with Built in Element Chart are made of high quality materials, and have smooth and comfortable handwriting, which make that also perfect for teacher and scientific workers to distinguish their daily pens form common just ballpoint pens.

If your institute or organization want to promote yourself to attract more young people, order a batch of customized Pens with Built in Element Chart will definitely distinguish yourselves from common giveaways. There are normally two ways to customized your own Pen with Built in Element Chart: by sending us your customized periodic table chart artwork. ( See artwork design instructions). Or put your company logo above the standard periodic table of elements chart. And of course we can also put a logo on barrel.

Order your customized Pen with Built in Element Chart today at bayfancom! Delivery time will 4 weeks to your door by courier like DHL/Fedex/UPS/TNT. If you are in hurry, we also offer 15 urgent delivery service

Customized artwork of periodic table of elements are welcome. Nevertheless, we also have beautiful periodic table of element ready for you, just send us your company name, we redesign the scroll to add your company name on top of it.

Group	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18
Period
1	1 H 1.008																	2 He 4.003
2	3 Li 6.94	4 Be 9.012											5 B 10.81	6 C 12.01	7 N 14.01	8 O 16.00	9 F 19.00	10 Ne 20.18
3	11 Na 22.99	12 Mg 24.31											13 Al 26.98	14 Si 28.09	15 P 30.97	16 S 32.06	17 Cl 35.45	18 Ar 39.95
4	19 K 39.10	20 Ca 40.08	21 Sc 44.96	22 Ti 47.88	23 V 50.94	24 Cr 52.00	25 Mn 54.94	26 Fe 55.85	27 Co 58.93	28 Ni 58.69	29 Cu 63.55	30 Zn 65.39	31 Ga 69.72	32 Ge 72.64	33 As 74.92	34 Se 78.96	35 Br 79.90	36 Kr 83.79
5	37 Rb 85.47	38 Sr 87.62	39 Y 88.92	40 Zr 91.22	41 Nb 92.91	42 Mo 95.96	43 Tc (98)	44 Ru 101.1	45 Rh 102.9	46 Pd 106.4	47 Ag 107.9	48 Cd 112.4	49 In 114.8	50 Sn 118.7	51 Sb 121.8	52 Te 127.6	53 I 126.9	54 Xe 131.3
6	55 Cs 132.9	56 Ba 137.3	*	72 Hf 178.5	73 Ta 180.9	74 W 183.9	75 Re 186.2	76 Os 190.2	77 Ir 192.2	78 Pt 195.1	79 Au 197.0	80 Hg 200.5	81 TI 204.38	82 Pb 207.2	83 Bi 209.0	84 Po (209)	85 At (210)	86 Rn (222)
7	87 Fr (223)	88 Ra (226)	**	104 Rf (265)	105 Db (268)	106 Sg (271)	107 Bh (270)	108 Hs (277)	109 Mt (276)	110 Ds (281)	111 Rg (280)	112 Cn (285)	113 Uut (284)	114 Fl (289)	115 Uup (288)	116 Lv (293)	117 Uus (294)	118 Uuo (294)

	Lanthanide Series*	57 La 138.9	58 Ce 140.1	59 Pr 140.9	60 Nd 144.2	61 Pm (145)	62 Sm 150.4	63 Eu 152.0	64 Gd 157.2	65 Tb 158.9	66 Dy 162.5	67 Ho 164.9	68 Er 167.3	69 Tm 168.9	70 Yb 173.0	71 Lu 175.0
	Actinide Series**	89 Ac (227)	90 Th 232	91 Pa 231	92 U 238	93 Np (237)	94 Pu (244)	95 Am (243)	96 Cm (247)	97 Bk (247)	98 Cf (251)	99 Es (252)	100 Fm (257)	101 Md (258)	102 No (259)	103 Lr (262)

	Alkali metals		Lanthanides
	Alkaline earth metals		Actinides
	Transition metals		Nonmetals
	Post-transition metals		Halogens
	Metalloid		Noble gases

Pen with Built in Element Chart

Posted on February 13, 2014 by New Product Gifts

pen with build-in element chart,chemical elements periodic table pens,periodic table of elements pens

Group	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18
Period
1	1 H 1.008																	2 He 4.003
2	3 Li 6.94	4 Be 9.012											5 B 10.81	6 C 12.01	7 N 14.01	8 O 16.00	9 F 19.00	10 Ne 20.18
3	11 Na 22.99	12 Mg 24.31											13 Al 26.98	14 Si 28.09	15 P 30.97	16 S 32.06	17 Cl 35.45	18 Ar 39.95
4	19 K 39.10	20 Ca 40.08	21 Sc 44.96	22 Ti 47.88	23 V 50.94	24 Cr 52.00	25 Mn 54.94	26 Fe 55.85	27 Co 58.93	28 Ni 58.69	29 Cu 63.55	30 Zn 65.39	31 Ga 69.72	32 Ge 72.64	33 As 74.92	34 Se 78.96	35 Br 79.90	36 Kr 83.79
5	37 Rb 85.47	38 Sr 87.62	39 Y 88.92	40 Zr 91.22	41 Nb 92.91	42 Mo 95.96	43 Tc (98)	44 Ru 101.1	45 Rh 102.9	46 Pd 106.4	47 Ag 107.9	48 Cd 112.4	49 In 114.8	50 Sn 118.7	51 Sb 121.8	52 Te 127.6	53 I 126.9	54 Xe 131.3
6	55 Cs 132.9	56 Ba 137.3	*	72 Hf 178.5	73 Ta 180.9	74 W 183.9	75 Re 186.2	76 Os 190.2	77 Ir 192.2	78 Pt 195.1	79 Au 197.0	80 Hg 200.5	81 TI 204.38	82 Pb 207.2	83 Bi 209.0	84 Po (209)	85 At (210)	86 Rn (222)
7	87 Fr (223)	88 Ra (226)	**	104 Rf (265)	105 Db (268)	106 Sg (271)	107 Bh (270)	108 Hs (277)	109 Mt (276)	110 Ds (281)	111 Rg (280)	112 Cn (285)	113 Uut (284)	114 Fl (289)	115 Uup (288)	116 Lv (293)	117 Uus (294)	118 Uuo (294)

	Lanthanide Series*	57 La 138.9	58 Ce 140.1	59 Pr 140.9	60 Nd 144.2	61 Pm (145)	62 Sm 150.4	63 Eu 152.0	64 Gd 157.2	65 Tb 158.9	66 Dy 162.5	67 Ho 164.9	68 Er 167.3	69 Tm 168.9	70 Yb 173.0	71 Lu 175.0
	Actinide Series**	89 Ac (227)	90 Th 232	91 Pa 231	92 U 238	93 Np (237)	94 Pu (244)	95 Am (243)	96 Cm (247)	97 Bk (247)	98 Cf (251)	99 Es (252)	100 Fm (257)	101 Md (258)	102 No (259)	103 Lr (262)

	Alkali metals		Lanthanides
	Alkaline earth metals		Actinides
	Transition metals		Nonmetals
	Post-transition metals		Halogens
	Metalloid		Noble gases

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Waterproof bag for phone

Posted on November 22, 2013 by New Product Gifts

waterproof bag for phone

Waterproof Pouch Dry Bag Pack Case Cover for Cell Phone Wallet Money

Great for the Beach, Camping, Hiking, Backpacking, and other Outdoor activities!!

Features
1. New generic Universal Waterproof Bag Case for Cell Phone / Wallet / Money / Cameras / Passports etc.
2. Textured pouch for grip.
3. Waterproof cover protects, dust, sand, snow, water, and wind resistant.
4. The waterproof cover allows you to comfortably operate the machines function.
5. Waterproof cover on the back of a transparent design, easy to use your camera functions
6. 55 inch Lanyard
7. Dimensions:10.5 X 17CM; 9.5 X 16CM; 23 X 29cm; , etc; Custom size also workable.
8. Material: Clear PVA Material
9. Custom logo imprint are workable.
10.Color: BLUE/YELLOW/ORANGE/RED/BLACK, ETC; Custom printing workable

Waterproof Dry Pouch Bag Case Cover For All Cell Phone PDA Find more size and different styles of waterproof dry pouch bag for cell phone and PDA IPD

Custom logo print on bags are workable. Contact us for more information.

Almost everyone have a smart phone, such as iphone or Android phone, and people carry them whatever they go, even going outdoor or spending their time on beaches. Those touch screen smart phone are quiet venerable to water. But people want to carry with then when they are near or even in water. How? With Halsun waterproof phone pouches, you can carry your expensive touch screen iphone ipad, Android phone with you when you play at beach! Halsun waterproof phone pouches are inexpensive, thus make them great promotional gifts for companies want to promote their business. They are perfect giveaway gifts with your custom logo imprinted.

VeryP

Very Nice Promotional Gifts

Newton Spring Scale

Brass Newton Spring Scales, Heavy Duty

Convenient Weight Marker

This Thing Sure Is Durable

Spring Scale

Convenient Weight Marker

This Thing Sure Is Durable

Mechanical Quadruple Beam Balance Scales

Quadruple Beam scale

Quadruple Beam Balance

Triple Beam Scale

Pen with Built in Element Chart

Pen with Built in Element Chart

Waterproof bag for phone