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Process Control Instrumentation Limited

Supplier From Hong Kong
Aug-07-20
Supplier : Gas sensors

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Hong Kong


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More Items Similiar to: Process Control Instrumentation Limited

Aug-23-16

Gas Sensors

$1
MOQ: Not Specified
Supplier From Shenzhen, Guangdong, China
 
Performance

Sensitivity na/ppm at 2ppm co 420 to 650
Response time t90 (s) from zero to 10ppm co < 25
Zero current na in zero air at 20°c +30 to -130
Noise* ±2 standard deviations (ppb equivalent) 4
Range ppm limit of performance warranty 1000
Linearity ppb co error at full scale, linear at zero, 500ppm co 20 to 35
Overgas limit maximum ppm for stable response to gas pulse 2000
* tested with alphasense isb low noise circuit

Environmental
Sensitivity @ -20°c (% output @ -20°c/output @ 20°c) @ 5ppm co 40 to 70
Sensitivity @ 50°c (% output @ 50°c/output @ 20°c) @ 5ppm co 110 to 125
Zero @ -20°c na -30 to +30
Zero @ 50°c na -50 to -200

Cross sensitivity
Filter capacity ppm·hrs h2s 250, 000
H2s sensitivity % measured gas @ 5ppm h2s < 1
No2 sensitivity % measured gas @ 5ppm no2 < 1
Cl2 sensitivity % measured gas @ 5ppm cl2 < 1
No sensitivity % measured gas @ 5ppm no < -3
So2 sensitivity % measured gas @ 5ppm so2 < 0.1
H2 sensitivity % measured gas @ 100ppm h2 at 20oc < 10
C2h4 sensitivity % measured gas @ 100ppm c2h4 < 1
Nh3 sensitivity % measured gas @ 20ppm nh3 < 0.1
Key temperature range °c -30 to 50

Specifications
Pressure range kpa 80 to 120
Humidity range % rh continuous 15 to 90
Storage period months @ 3 to 20°c (stored in sealed pot) 6
Load resistor o (isb circuit is recommended) 33 to 100
Weight g < 13

Isweek provide smoke, gas, humidity&temperature, uv, fluid or other kinds of sensors
More details welcome to inquiry: skype:isweek_laura
Jul-19-16

Carbon Dioxide Gas Sensor

$1
MOQ: Not Specified
Supplier From Shenzhen, Guangdong, China
 
Misir is a low power (20mw4), high performance co2 sensor. Based on gss patented solid state ir sensor technology and innovative optical designs, misir is configured to meet the requirements of the hvac and demand led ventilation markets.

Low power 20mw
Measurement ranges from 0 to 1%
Low noise measurement
Jul-09-15
 
Items
Technical parameter
Detection Range
a1000ppm
Max detecting bound
2000ppm
Detecting life
5 years
Sensitivity
0.015
Resolution
0.5ppm
Temperature range
Pressure range
Normal atmosphere
Response time(T90)
<50S
Humidity range

Zero shift
10ppm
Stability(/Month)
<10%
Load resistance(commend)
200|
Reproducibility
<10%output value
Output linearity
Linearity


inner: plastic foam
outside: carton
Oct-17-16
Supplier From Shenzhen, Nanshan, China
 
Gas leak detection in stationary fuel cells combustible gas sensor module
Model number:cgm6812--b00

Features:
* linear analog output proportional to gas
Concentration
* maintenance free
* compact size
* meets rohs requirements

Applications:
* gas leak detection in fuel cell systems
* hydrogen & combustible gas leak
Detectors

Description:
The cgm6812-b00 combustible gas sensor module is
A new unit which utilizes tgs6812, figaro's catalytic
Pellistor type gas sensor which features durability and stability.
This module provides analog output voltage proportional to hydrogen gas concentration.
Cgm6812-b00 has conformal coatings for moisture-
Proofing and electrical insulation purposes, and is also
Capable of detecting sensor wire breakage. The unit has
A wide range of operating temperature from -10' to +60'c.
Because the tgs6812 sensor can detect methane and lp gas
As well as hydrogen, this module is suitable for gas
Leak detection in stationary fuel cells which use hydrogen
Generated from combustible gases Sensor Module Cgm6812
Apr-26-19

Nap-66A Flammable Gas Sensors

$1
MOQ: Not Specified
Supplier From Shenzhen, Guangdong, China
 
NAP-66A is mainly used for gas detectors and leak testers. NAP-66A is a half in height and needs a half in power consumption compared to existing sensor so that thinner and lighter-weight detectors can be produced. The following are the basic characteristics but it is recommended to refer to the individual users manual for further information.

* Target gases and concentration
Propan(C3H8): 0.03~ 2.2% (0.03~ 1%)
Iso-butane(Iso-C4H10): 0.03~ 1.8% (0.03~ 0.8%)
Hydrogen(H2):0.05~ 4% (0.05~ 1.5%)
Ethanol(C2H5OH): 0.05~ 3.2% (0.05~ 1.5%)
Hydrocarbons(CnH2n+2): 1~100% LEL (1~50%LEL)
( ) is a detection range in high accuracy

* Ratings
Supply Voltage:
DC 2.0 ± 0.2V
AC 2.0 ± 0.2V (r.m.s. 50~60Hz)
Current (When 2.0V is applied):
DC 140 ~ 160mA
AC 140 ~ 160mA (r.m.s. 50~60Hz)
Ambient Temperature:
In operation -10 ~ +50
In storage -10 ~ +50
Ambient humidity:
In operation 95ï¼?RH or less
In storage 99ï¼?RH or less (No dew condensation)
Sep-20-18
Supplier From Shenzhen, Guangdong, China
 
MTCS2601 silicon sensing die in SMD ceramic package

The MTCS2601 sensors consist of a micro-machined thermal conductivity sensor using four Ni-Pt resistors realized using MEMS technologies. The sensor is mounted in a miniature SMD package, available on tape and real. This MEMS TC sensor, combined with simple low power CMOS standard integrated circuits, is an excellent choice for size-critical leakage OEM detector or miniature vacuum gauge based on Pirani principle requiring ultra-low power consumption, long lifetime and no maintenance. Applications are primary pressure control in rough environment with power and size constraints, or detection in closed volume of gas leakage or moisture, or intrusion.

MTCS2601 Thermal Conductivity Sensor Applications
* Primary vacuum control following Pirani principle. This sensor is easily added within a pressure valve or directly in vacuum pipes or systems, such as small mechanical pumping systems, vacuum pumping machine and analytical instruments .
* Leakage miniature SMD sensor as control integrity of closed systems or instruments under dedicated pressure, able to detect defect like corrosion or simply box opening (load cells; flywheel systems, Dewarâ?¦)

MTCS2601 Thermal Conductivity Sensor Features
* Thermal conductivity sensor for primary vacuum measurement
* Silicon device in SMD ceramic package. Delivery in Tape & Reel
* Small dimension compatible with measurement in very small volume
* Low power consumption and short time constants
* Optimal sensitivity in the range 10^(-2) to 10^(+2) mbar. Possible extension in the range 10^(-4) to Patm
* Low cost for volume application
* Robust MEMS sensor following physical Pirani principle (hot wire) with no chemical reaction, based on gas thermal conductivity variation versus pressure
* Measuring range from 10^(-4) to 1000 mbar with excellent reproducibility
* Temperature compensated with excellent matching of compensation and heating resistors on the same silicon die
* Ultra small sensor gas volume such as < 0.1 cm^3
* Robust and long MTBF (> 30â??000 hs) due to physical resistive sensing principles
* Ultra-low power sensor consumption in operation (< 6 mW) due to the use of MEMS based micromachined silicon sensor with small heated mass.
* Ultra-fast response time < 50 ms
* Insensitive to mounting position
* Gold contact version upon request for corrosive gas environment
* Compatible with a simple constant excess temperature operation circuit
Dec-01-17
Supplier From Shenzhen, Guangdong, China
 
O2-M2 Oxygen Sensor Description
Alphasense Oxygen sensors use capillary flow control.

Unlike partial pressure oxygen sensors, they have good pressure and temperature dependence, making them the best choice in safety applications.

Standard galavanic sensors use lead for greatest reliability but fixed lifetime.

Specifications
* Output: 80 to 120 uA @ 20.9% O2
* Response time t90: < 15 (s) from 20.9% to 0% O2


* Linearity: 0.6 % O2 deviation @ 10% O2
* Operating life: > 24 months
*Temperature range: -30 to 55 'C
* Pressure range: 80 to 120 kPa
* Humidity range: 5 to 95 % rh continuous
* Diameter: 20.0 mm (including label)
* Heigh: 17.4 mm (including foam ring)
* Weight: < 16g
Jul-21-16
Supplier From Shenzhen, Guangdong, China
 
Cheap price Ozone sensor O3 Gas sensor 20ppm
SPEC’s printed sensors offer the performance of the best quality electrochemical sensors at a fraction of the price. SPEC’s printed sensors are also ultra-thin, offering easy integration into wireless, portable, and networked solutions. These sensors are ideal for health, environmental, industrial and residential monitoring, because of their high performance, low cost and small size.

BENEFITS
• Small Size with Low Profile (20x20x3 mm)
• Long Life (10 years expected life)
• Fast Response (< 15 seconds)
• Low Power Consumption
• Individually Calibrated (NIST Traceable)
• ROHS Compliant

APPLICATIONS
• Air Quality Monitoring
• Industrial Safety
• Air Purification Control
Jan-11-18

Fs1015Cl Gas Flow Sensors

$1
MOQ: Not Specified
Supplier From Shenzhen, Guangdong, China
 
Fs1015cl gas flow sensors description
Fs1015cl mass flow sensors are specially designed for medical equipment flow monitor and control applications, and are made with world leading proprietary mems mass flow designed channel with a low pressure loss. The current models can be readily applied to ventilators and anesthesia equipments. These sensors can also be sterilized in medical liquids for reuse or hygienic purposes.

Fs1015 series can measure a flow up to 150 slpm. Iso-15mm connection model is readily applicable to ventilators and/or anesthesia equipments.

Fs1015cl gas flow sensors features and applications
- mems thermal mass flow sensor
- excellent rangeability with integrated multiple sensing elements
- high stability at null and full scale
- fast response
- low power consumption
- low pressure loss

Fs1015cl gas flow sensors performance specifications
* flow range: 0 to 100; 0 to 150slpm
* turn-down ratio: > 100 : 1
* accuracy: +/- (2.0 + 0.5 fs) %
* repeatability: +/- 0.5% reading
* null shift: â± 30mv
* output shift: +/- 0.12%/'c
* response time: 8 (max.) ms
Oct-07-23
Supplier From Chennai, Tamil Nadu, India
 
Gas Distribution Monitoring Systems : Unlike many competitors who sell boxes, PMAS delivers total secure end-to-end connectivity solution that seamlessly integrates remote devices & sites to centralized management systems i.e. SCADA. No changes in the existing system are needed. Gas Monitoring Systems is operator-independent and allows customer to implement two way communication in a similar manner all around the world.


Features:
Reliable
Industry Leading Prices
Easy Maintenance

Verification Status