Portable gas detector T-21

Portable gas detectors series T-21 have high sensitivity and high precision, they can be used for detection of many kinds of toxic or harmful gases. The device uses advanced 16-bit microprocessor with extra low consumption energy and high processing speed. It features a durable housing with anti-slip coating.

Devices of this type are widely apply in oil, petrochemical, chemical, gas, coal industries, coal mining and energy; for safety to local administrations, municipal and construction services and other areas where there is a release of harmful and toxic gases.

Features of this device:

· spark-proof housings, Ex (IA) IIC T3;

· used advanced 16-bit microcontroller ultra-low energy consumption;

· design type magazine: a small and easy to transportation;

· large LCD display with wide viewing angles;

· powered by a lithium-ion battery with large capacity that ensures long operating time in the standby mode;

· the battery indicator;

· modular sensors, easy to replace;

· auto-calibration reduces measurement error;

· STEL and TWA alarm upon detection of toxic gases have different sound as well as visual and vibration alarm;

· the possibility of password protection. Important operations will require password authentication.

 

Specifications:

· measured gas: O2;

· sampling method: diffusion;

· measuring principle: electrochemical cell;

· measuring range: depending on gas;

· response time: less than 30 sec;

· accuracy: ±2%;

· types of alarm: visual, audible, vibration;

· results display: 6-digit LCD display;

· working environment: -20...+50 0C humidity 5...95%;

· power: lithium battery 4.2 V;

· dimensions: 106 x 67 x 32 mm;

· weight: 120 grams;

· protection: IP65, Ex(IA) IIC T3.

 

Measurement ranges

Model

Measured gas

Range

The set level alarm

T21-O2-30

O2

0...30%

Low: 19.5% of

High: 22,5%

 

 

Option

The value

Gas

O2, CO, H2S, SO2, Cl2, HCN, NO2, NH3, PH3, O3, NO, ClO2, CH4and tons.d.

Method detection

Diffusion

The principle measurements

Electrochemical (oxygen and toxic gases) catalytic combustion (combustible gas)

Range measurements

Cm. table.1

Time positives

(O220sec.), (CO, H2S, SO2, Cl2, NO, ClO2, NO260sec.), (HCN, NH3, O3, HCl, CH4ACC.), (RNSC.), (combustible hassk.)

Error definition

±5% the width of the scale

Method management

With buttons

Display results

5-bit 8-segment LCD display

Interval operating temperature

-20°C ~ 50°C

Humidity

0~90% relative humidity (non-condensing)

Temperature storage

0°C ~ 40°C

Source power

Battery lithium battery that can continuously work for more than 24 hours.

Battery

Lithium 4.2 V battery capacity mA/h.

Sizes

125 x 66 42 mm

Weight

105 g

Certificate

Exia IICT3, IP65

Mark approval

Mark COE

Mode calibration

Select gauge head, this will facilitate the calibration