Water quality coliform detection - enzyme substrate detection system - Database & Sql Blog Articles

Test - uppercase JPG - memory 146K
Kaixin micro test
Test probe P100-M3

Water quality coliform enzyme substrate detection system:

It consists of LK-2010 program-controlled quantitative sealing machine, 51 or 97-well quantitative detection tray, 100mL quantitative bottle and enzyme substrate detection reagent. Scope of water samples: drinking water, source water, bottled water, medium water, secondary water supply, pipe network water, wastewater, food water, livestock water, medical water, etc. The detection method uses Escherichia coli to produce a β-galactosidase-decomposing color source substrate-ONPG (Ortho-nitrophenyl-β-D-galactopyranoside) to make the culture solution yellow. Escherichia coli produces β-glucuronidase to decompose MUG (4-methyl-umbelliferyl-β-glucuronide) to fluoresce the culture medium at a wavelength of 366 nm to qualitatively quantify the total amount of water. Coliform, fecal coliform (heat-resistant coliform) and Escherichia coli. Serial number

Indicator name

Technical indicators

1

name

Program-controlled quantitative sealing machine

2

use

Used for

GB5750-2006

Enzyme substrate method for detection of total coliforms, Escherichia coli and fecal coliforms

3

reliability

No leakage

,

No holes

4

stability

Detectable

40,000

More than one sample, the service life is greater than

5

year

5

Convenience

open

/

Off and backspace

Quantitative digital display window

,

Have a cleaning window

6

Quickness

No need for a sterile room

, 24h

Detection of total coliforms in water

\

Escherichia coli

\

Heat-resistant coliform

7

weight

≤

16kg

8

size

39cm

long

X 27cm

width

X 30cm

high

9

Preheat time

≤

14min

10

noise

<50dba

11

Cover temperature

<40

o

C

12

Sealing speed

13

Operating Voltage

AC 220V

±

10

%

, 50H

Z

14

Sealing speed

51

hole,

97

Hole quantitative detection disk sealing time

≤

12

second

/

One

15

Working temperature

-10

o

C-50

o

C

16

examination range

Cooperate

51

Hole quantitative detection disk detection range

0-200MPN/100ml

(

Water sample is not diluted)

Cooperate

97

Hole quantitative detection disk detection range

0-2419MPN/100ml

(

Water sample is not diluted)

The detection method is a commonly used detection method in developed countries in the world. Compared with the standard detection methods in China, such as multi-tube fermentation and membrane method, the selective medium has the function of inhibiting bacteria and has low false positive. Quantitative and accurate. Because of the convenience and speed of the method, the efficiency can be improved and the detection time can be shortened in the routine testing of the laboratory, and the data can be timely reported in the emergency monitoring to avoid causing a large public safety accident.

Coaxial Power D-Sub Solder Cup

Coaxial Power D-Sub Solder Cup Contacts with Mixed or Full Layout
Transmit Radio Frequency Signals

The Coaxial D-Sub have like the Power D-Subr replaced the two rows in a Standard Density connector with a coaxial contact that take up about the same size as the two rows of signal contacts. The Coaxial D-Sub is exactly the same size as the Standard Density connector but instead of example 9 positions of signal pins it has 2 power contacts , or instead of 37 positions of signals it has 8 coaxial contacts.

The Impedance for the coaxial contacts are 50Ω or 75Ω


All Signals, but different Signals
The Coaxial D-Sub with Mixed Layout mixes both coaxial contacts and signal contacts in the same connector. For example the same size as a 15 position Standard Density D-Sub you can have what we call a 7W2, which means there is 7 contacts where 2 of them are coaxial contacts, which means there are 5 signal contacts, so 5 signals and 2 coaxial. See the Layout in the Tech Specs on the bottom, there are a lot of combinations of the Mixed Layout alternative.


Antenk's Coaxial D-Sub connectors are available in 5 standard shell sizes with 23 multiple contact arrangements. These reliable, robust combination d-sub connectors allow a combination of signal and coaxial contacts in cable mount, vertical board mount & right angle board mount termination type variations.


Coaxial D-SUB Mixed Contact Solder Cup
Features
Coaxial d-sub for a variety of applications in cable mount.
Signal contacts come pre-loaded. Coaxial contacts supplied - Not Pre-Loaded.

Available in 5 standard shell sizes with 23 multiple contact arrangements: 1W1/ 2V2 /2W2 /3V3/ 3W3/ 5W1/ 5W5

/ 7W2/ 8W8/ 9W4/ 11W1/ 13W3/ 13W6 /17W2/ 17W5 /21W1/ 21W4/ 24W7/ 25W3 /27W2/ 36W4/ 43W2/ 47W1

Allows combination of signal and coaxial d-sub contacts.

Materials
Shell: Steel, nickel plated
Insulator: PBT + 30% fiber-glass - Black, U.L. rated 94V-O
Contacts: Brass - Gold flash over nickel

Notes
Panel Cut-Outs
5W1 = Standard 9 Pin Shell
3W3 / 3W3K / 7W2 / 11W1 = Standard 15 Pin Shell
5W5 / 9W4 / 13W3 / 17W2 / 21W1= Standard 25 Pin Shell
8W8 / 21WA4 = Standard 37 Pin Shell
Other Contact Arrangements Available Upon Request.

Coaxial D-Sub Connector, Coaxial D-Sub with Mixed Layout, Coaxial D-Sub with Mixed with Full Layout,Coaxial D-Sub Male, Coaxial D-Sub Female

ShenZhen Antenk Electronics Co,Ltd , https://www.antenkelec.com

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