男女爱爱网站_色激情综合网_欧美在线小视频_一级黄网_欧美日韩在线成人免费_久久精品免费观看视频

OK蜜蜂網 > 蜜蜂養殖技術 > 養蜂工具 >

Handheld Conductivity Meters

|OK蜜蜂網

The conductivity is a cumulative parameter for the ionic concentration of a solution. The more salt, acid or alkali in a solution, the greater its conductivity. The unit of conductivity is S/cm. The scale for aqueous solutions begins with pure water at a conductivity of 0.05 μS/cm (25°C). Naturally occurring waters such as drinking water or surface water have a conductivity in the range 100 - 1000 μS/cm. The upper end of the scale is reached by some bases such as potassium hydroxide solutions with a conductivity of just over 1000 mS/cm.

Conductivity is measured by making a measurement of the electrical resistance. The simplest kind of measuring cell used consists of two similar electrodes. An alternating voltage applied to one of the electrodes causes the ions in the solution to migrate towards the electrodes. The more ions in the solution, the greater the current which flows between the electrodes. The instrument measures the current and uses Ohm's law to calculate first the conductance of the solution and then - by taken the cell data into account.

Thermal Conductivity of honey: The specific heat of honey is in the 0.54-0.60 cal/g/°C range for liquid honey, and is equal to 0.73 cal/g/°C for finely granulated honey. The thermal conductivity of honey increases with temperature and total solids, ranging from 118 x 10 -5 to 143 x 10 -5 cal/cm sec °C.

蜂蜜檢測設備-儀器

contents: Data-Line Conductivity temperature measureing instrument/standard conductivity electrode with waterproof plug/ set cehcsolutions 2 x 100ml 1413μS and 12,88 mS at 25oC incl. electrode stand, all well arranged in Profi Box.

additionally available:

PT100 sensor with handle

PTC Temperature sensor

Measuring range

Resolution

Accuracy

Conductivity μS

0,1 0 to 3 9,99 μS

0,5 % X0,0 5 μS

Conductivity mS

20,0 to 3 99,9 μS

0,5 % ± 0,1 μS

200 to 3999 μS

0,5 % ±1 μS

2,00 to 39,99 mS

0,5 % ±0,01 mS

20,0 to 399,9 mS

2 % ± 0,1 mS up to 2O mS

 

and 6 % from 100 to 399 mS

TDS

O to 3999 ppm

2% ± 1 ppm

Salinity

0,0 to 70,0 g/kg

0,5 % ± 0,1 at range 2,0 to 42,0 g/kg

 

at range O to 30°C

 

Temperature ( N TC 30)

-5,0 to 105,0 ° C

0,2 ° C

PTC

-50,0 to 1 50,0 ° C

0,2 ° C ±0,2

Pt 100

-100,0 to 399,9 ° C

0,2 ° C + 0,4

Data memory

250 data sets with identity No./measuring value/time/date

Automatic measurements

at intervals 1/213/5/10/20/30 minutes and 1/2/3/4 hours

Auto off

adjustable from 1 to 59 min (after last operation)

Clock

with calendar, summer- and wintertime will be adjusted automatically

Power supply

4 x 1,5 V AA Alkaline Batteries

Operatingtime

approx. 4000 h

Interface

RS 232 C / Parameter 2400 Baud/B/P1

Protocol

ASCII

Dimension

170 x 79 x 39 mm (Lx W x N)

Weight

350 g (weight only of instrument )

Case

protection type IP 66 and IP 67

1386
主站蜘蛛池模板: 日本在线亚州精品视频在线 | 美女在线视频一区二区 | 久久综合九色综合欧美狠狠 | 亚洲视频aaa | 久草草视频在线观看免费高清 | 欧美一区二区在线免费观看 | 成人免费看黄网址 | 日韩精品一区二区三区中文在线 | 男人午夜免费视频 | 欧美日韩一区二区综合在线视频 | 国产一区二区三区乱码 | 亚洲精品人成网线在线 | www.麻豆 | 噜噜噜动态图超猛烈 | 色先锋av资源中文字幕 | 91精品中文字幕一区二区三区 | 久久久91精品国产一区二区三区 | 色综合久久中文字幕网 | 伊人亚洲 | 一级做受毛片免费大片 | 日本免费大片免费视频 | 午夜私人影院 | 亚洲免费人成在线视频观看 | 天天爽天天干天天操 | 日本在线观看视频网站 | 奇米影视小说 | 亚洲精品久久久久无码AV片软件 | 亚洲网站在线免费观看 | 免费精品久久久久久中文字幕 | 久久久国产视频 | 亚洲人免费视频 | 人阁色第四影院在线电影 | 欧美激情视频网 | 一级毛片一级毛片一级毛片一级毛片 | 成人午夜大片免费看爽爽爽 | 久久精品视频日本 | 九热视频在线观看 | 伊人伊人 | 日本天天色 | 色综合天天综一个色天天综合网 | 91久久精品久久国产性色也91 |