Sm2000A Serial Ac Millivolt Meter

SM2000A Serial AC Millivolt Meter
SM2030A is suitable for measuring of RMS value 
voltage of Sine waveform that the frequency 
range is 5Hz~3MHz (5Hz~5MHz for SM2050A) 
. They all have the switch function between automatic 
and manual and automatic decimal positioning,
as well as three-digit or four-digit display.
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Universal Frequency Counter
FEATURES
VFD Two Display, Dual Independent Channels
Auto/Manual Ranging can be selected
Multiple display result with different units
High Frequency Range from 5Hz to 5MHz
Standard Interface RS-232

SPECIFICATIONS
SM2030A SM2050A
Frequency Range 5Hz ~ 3MHz 5Hz ~ 5MHz
Measurement Range
AC Voltage 50µV ~ 300V
Scale 3mV, 30mV, 300mV, 3V, 30V, 300V
dBV -86dBV ~ 50dBV(0dBV=1V) 
dBm -83dBm ~ 52dBm(0dBm=1mW 600Ω)
Vpp 140µV ~ 850V
Voltage Measurement Error
â?¥5Hz ~ 100Hz ±2.5% reading ± 0.8% range
>100Hz ~ 500kHz ±1.5% reading ± 0.5% range
>500kHz ~ 2MHz ±2.0% reading ± 1.0% range
>2MHz ~ 3MHz ±3.0% reading ± 1.0% range
>3MHz ~ 5MHz ±4.0% reading ± 2.0% range
Resolution
Range 3 1/2 digits Display 4 1/2 digits Display
3mV 0.001mV 0.0001mV
30mV 0.01mV 0.001mV
300mV 0.1mV 0.01mV
3V 0.001V 0.0001V
30V 0.01V 0.001V
300V 0.1V 0.01V
Damage Voltage
3V ~ 300V 350Vrms (5Hz ~ 5MHz)
3mV ~ 300mV 350Vrms (5Hz ~ 1kHz)
35Vrms (1kHz ~ 10kHz)
10Vrms (10kHz ~ 5MHz)
General Characteristics
Power AC220(±10%)V, 50 (1±5%)Hz, 

Ginger root
Botanical name: Zingiber officinale Linn.
Family: Zingiberaceae.
Ginger oil and oleoresins are the volatile oil derived by steam distillation of ginger and oleoresin. It is obtained by percolating the powdered rhizomes of Ginger, Zingiber officinale with volatile solvents. Ginger contains 1-2 percent of volatile oil, 5-8 percent of pungent acrid oleoresin and starch. Zingiberene is the chief constituent in the oil of ginger. Oil is employed for flavoring all kinds of food products and confectionary and finds limited use in perfumery. Oleoresin, commercially called Gingerin contains pungent principles viz. gingerol and shogaol apart from the volatile oil of ginger and is used as an aromatic, carminative, stomachic and as a stimulant.

Oleoresin from ginger is obtained conventionally by extraction of dried powdered ginger with organic solvents like ethyl acetate, ethanol or acetone. Commercial dried ginger yields 3.5-10.0 per cent oleoresin. Ginger oleoresin is a dark brown viscous liquid responsible for the flavour and pungency of the spice.

Ginger of commerce or `Adrak` is the dried underground stem or rhizome of the plant, which constitutes one of the five most important major spices of India, standing third or fourth, competing with chillies, depending upon fluctuations in world market prices, world market demand and supply position.
Ginger, like cinnamon, clove and pepper, is one of the most important and oldest spices. It consists of the prepared and sun dried rhizomes known in trade as `hands` and `races` which are either with the outer brownish cortical layers (coated or unscraped), or with outer peel or coating partially or completely removed.
Ginger requires a warm and humid climate. It is cultivated from sea level to an altitude of 1500 meters, either under heavy rainfall conditions of 150 to 300 cm or under irrigation. The crop can thrive well in sandy or clayey loam or lateritic soils.
The composition of dry ginger is given below:
Dry Ginger rootMoisture:6.9 %
Protein:8.6 %
Fat:6.4 %
Fiber:5.9 %
Carbohydrates:66.5 %
Ash:5.7 %
Calcium:0.1 %
Phosphorous:.15 %
Iron:0.011 %
Sodium:0.03 %
Potassium:1.4 %
Vitamin A:175 I.U./100 g
Vitamin B1:0.05 mg/100 g
Vitamin B2:0.13 mg/100 g
Niacin:1.9 mg/100 g
Vitamin C:12.0 mg/100 g
Calorific value:380 calories/100 g.
Ginger Oleoresin is obtained by extraction of powdered dried ginger with suitable solvents like alcohol, acetone etc. Unlike volatile oil, it contains both the volatile oil and the non-volatile pungent principles for which ginger is so highly esteemed. Concentration of the acetone extract under vacuum and on complete removal of even traces of the solvent used, yields the so called oleoresin of ginger. Ginger oleoresin is manufactured on a commercial scale in India and abroad and is in great demand by the various food industries.

Circular steel pipe is both openings and have hollow concentric sections of steel larger than the surrounding. The specifications of steel pipes are indicated by appearance dimensions and inner diameter and wall thickness, with a wide range of dimensions from very small diameter capillary to large round steel pipe of several meters in diameter. Round steel pipes can be used for pipelines, thermal equipment, machinery industry, petroleum geological drilling, containers, chemical industry, and special uses. It can be divided into seamless, ERW, LSAW, SSAW steel pipe according to the production process.

DESCRIPTION :
3 Ply MEDICAL disposable mask EN:14683:2019+AC:2019
Material: Outside layer 25g blue non-woven
Middle layer-25g melt blow filter 99%
Inside 25g white non-woven
Size: 17.5*9.5cm
Color:Blue and white,
Certification:CE and FDA

Model No :
3Ply MEDICAL

. Quantity Pcs ;
10

Packing details :
50pcs per box,
40boxes/ctn,2,000pcs/ctn,
G.W.:8.7kgs,carton size:54*42*35.5cm

DESCRIPTION :
3 Ply MEDICAL disposable mask For Kids
EN:14683:2019+AC:2019
Material: Outside layer 25g blue non-woven
Middle layer-25g melt blow filter 99% Inside
25g white non-woven
Size: 14.5*9.5cm
Color:Blue and white,
Certification:CE and FDA

Model No :
3Ply MEDICAL
For Kids


. Quantity Pcs ;
10

Packing details :
10pcs per box,
100boxes/ctn,1,000pcs/ctn,
G.W.:4.8kgs,carton size:54.5*42*26cm

RATTAN CANE WEBBING
Rattan cane webbing usually refers to rattan webbing made from Chair-cane (rattan peel\bark). Rattan webbing made from rattan core is called reed webbing. These are elegant looking furniture materials that enhance quality. Cane webbing is made from rattan strong enough to support the weight of a sitting person and flexible enough to bend around the sharp corner of wooden frames. They are simple to use and uniform for the production of high-value furniture in any quantity. Production of cane webbing involved a lot of labor, attention skill and craftsmanship. Every production steps require careful hand selection.
Product Description
Origin : Viet Nam
Use : Home Decoration
Color :Natural White
Length: 15 m
Dimension: 45 - 60 - 70 - 90 cm
Material: Natural Rattan

Hexagonal rattan: is the most common type of knitting used regularly for the details of rattan tables and chairs, partitions, screens... The material is from natural rattan strings: small, thin rattan fibers that are still soft. Color: mainly natural white, slightly dark yellow, or color of your choice. There are many different sizes of knitting, the required size is from 40-100 cm wide, 15 meters long