- function: toxic gases concentration in the air meter
- measurement: CO2 concentration (carbon dioxide)
- measurement method: NDIR
- analogue output 4..20mA
- 2 transmitter outputs
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Meter is used for measurement of carbon dioxide CO2 concentration in the free air. The meters are manufactured in versions that differ in the measurement scope.
The meter ZFP9 is a stationary device, of small size, powered from an outside source. The meter is characterized by a modern construction based on the NDIR method (non-dispersive infrared method). It relays on the measurement of attenuation of infrared radiation and defined wave length put through the measured gas, suppressed depending on the carbon dioxide content in the gas examined. The NDIR method along with the device’s producer Japanese precision - Fuji company - assures accurate and stable measurement results and failure free work for many years (checked with many applications).
The meter has a built-in membrane filter of the gas provided for the measurement and a pump assuring constant flow of the measured gas with efficiency of approximately 0,6 liters per 1 minute. Gas is transported to the meter through a tube 4,8 mm in diameter.
The meter has two programmable transmitter outputs that are activated by the programmed CO2 levels (of regulated work thresholds in the measured scope 0...100%) and one analogue output 4..20 mA (of nonlinear characteristic).
Other additional options include: a digital interface RS-232 allowing on meter work in the LonWorks network or an interface S300, allowing on attaching the meter i.e. to a concentrator LB-731 or other device produced by LAB-EL.
| METER MEASUREMENT CHARACTERISTICS | ||||
|---|---|---|---|---|
| Specification | ZFP9AB41 | ZFP9BB41 | ZFP9CB41 | ZFP9EB41 |
| Sensor type | NDIR | NDIR | NDIR | NDIR |
| Scope of measurement | 0...3000 ppm 0...0,3 % |
0...10000 ppm 1...1% |
0...5 % volume | 0...20 % volume |
| CO2 measurement accuracy | 1 % scope (30 ppm) | 1 % scope (100 ppm) | 1 % scope (500 ppm) | 1 % scope (0,2 %) |
| Standard scope of an analogue output | 0...3000 ppm | 0...10000 ppm | 0...5 % volume | 0...20 % volume |
| CO2 measurement zero drift | < +/- 10% measurement scope / 6 months | |||
| CO2 measurement response time | 10 seconds (for gas flow 0,6 l/min) | |||
| MEASUREMENT RESULT OUTPUTS | ||
|---|---|---|
| Analogue output | 4..20 mA | Robc <= 350 ohm |
| Transmitter output (alarm) | 250 V / 3 A | Resistance intensity |
| Transmitter output hysteresis | +/- 4 % | For a signal that equals 50% of the scope |
| WORK CONDITIONS | ||
|---|---|---|
| Scope of environment relative humidity | 0...90 % | without steam condensation |
| Scope of work temperatures | 0...+40 C | |
| Scope of storage temperatures | -20...+50 C | |
| Measured air pressure | atmospheric | indication dependability: +1,4 % na 1 kPa |
| POWER SUPPLY | ||
|---|---|---|
| Scope of voltages | 230V +/- 10% | 50..60 Hz |
| Energy consumption | 18 VA | |
| OVERALL DIMENSIONS, MASS | |
|---|---|
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Overall dimensions: 257 x 220 x 85 mm Mass: approximately 3 kg |
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Dystrybutor: LAB-EL Elektronika Laboratoryjna Sp. J. ul. Bodycha 68b, 02-495 Warszawa tel: (022) 667 71 18, 0601 209656, fax: (022) 867 53 32 poczta elektroniczna: info@label.com.pl witryna internetowa: http://www.label.com.pl internetowa stacja meteorologiczna: http://www.meteo.waw.pl internetowa stacja meteorologiczna w kom�ce: wap.meteo.waw.pl Ostatnia aktualizacja: 30.06.2006 |
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