IGM-11
The gas analyzer is designed for automatic, continuous measurement of the concentration of oxygen (O2), carbon monoxide (CO), hydrogen sulfide (H2S), sulfur dioxide (SO2), nitrogen dioxide (NO2), ammonia (NH3), nitrogen oxide (NO), hydrogen cyanide ( HCN) and hydrogen (H2).
FIELD approx eneniya
Explosive zones of premises and near external technological installations, in which the formation of explosive mixtures of gases and vapors with air is possible, according to GOST R IEC 60079-14-2008 and explosion protection marking 1Exd [ib] IIC T4 Gb X.
Features:
Consists of a transmitter and a gas converter (SG).
The transmitter provides the formation of appropriate voltages to power the electrical circuit of the gas analyzer, SG circuits, generates power for the active current output of the gas analyzer, and also converts digital data on the concentration of the measured gas received from the SG into the corresponding signals of the RS-485 MODBUS® and HART output interfaces, provides a display of the concentration of the analyzed gas on the built-in four-character seven-segment display and light indication (using indicator LEDs), as well as switching the built-in relays.
The gas converter serves to accommodate the electrochemical gas sensor and provides the formation of a digital signal containing information about the measured concentration of the monitored gas and its transfer to the transmitter, as well as generates the current output signal. PGs have a built-in flash memory with calibration coefficients, which are automatically read when connected to a transmitter by a microprocessor, which eliminates the need for individual calibration (calibration) of transmitters with a transmitter.
Digital HART signals are transmitted over the analog current loop (4-20 mA) lines. In addition, the gas analyzer can be equipped with a connector for intrinsically safe connection of a HART communicator in an explosive area without disconnecting the power supply. The exchange protocols over digital interfaces are described in Appendix E.
| Measured gas | Oxygen (O2), carbon monoxide (CO), hydrogen sulfide (H2S), sulfur dioxide (SO2), nitrogen dioxide (NO2), ammonia (NH3), nitrogen oxide (NO), methanol (CH₃OH), ethanol (C2H6O), Hydrogen fluoride (HF), hydrogen cyanide (HCN) and hydrogen (H2) (depending on modification). |
|---|---|
| Measuring principle | Electrochemical. |
| Sampling method | Diffusion. |
| Output signals | • unified current signal (4 ... 20) mA • RS485 interface, MODBUS RTU protocol • 3 relays • HART |
| Body material | Aluminum, stainless steel |
| Explosion protection level | 1ExdibIIВ T4 Gb X |
| Protection against external influences | IP67 |
| Working temperature | from -30 to + 600C |
| Power supply | 12 ... 32 V |
| Power consumption | No more than 1.0 W (excluding heating) |
| Gas analyzer setup | With magnetic switch, RS-485 MODBUS |
| Gas analyzer version | The component being defined | Measuring range | Limits of permissible basic error of absolute relative | |
|---|---|---|---|---|
| IGM-11-01-X | oxygen (O2) | From 0 to 30% | ± 0.5% | - |
| IGM-11-02-X | carbon monoxide (CO) | 0 to 2000 ppm | ± 4 ppm (0-40 ppm incl.) | ± 10% (vols. 40 to 2000 million-1) |
| IGM-11-03-X | hydrogen sulfide (H2S) | 0 to 100 ppm | ± 1.5 million-1 (0-7.5 million-1 incl.) | ± 20% (vol. 7.5 to 100 million-1) |
| IGM-11-04-X | high concentration hydrogen sulfide | 0 to 500 ppm | ± 2 million-1 (0-10 million-1 incl.) | ± 20% (vols. 10 to 500 million-1) |
| IGM-11-05-X | sulfur dioxide (SO2) | 0 to 20 ppm | ± 0.5 ppm (0-2.5 ppm incl.) | ± 20% (vol. 2.5 to 20 million-1) |
| IGM-11-06-X | sulfur dioxide in high concentrations | 0 to 2000 ppm | ± 2 ppm (0-10 ppm incl.) | ± 20% (vols. 10 to 2000 million-1) |
| IGM-11-07-X | nitric oxide (NO) | 0 to 250 ppm | ± 2 million-1 (0-10 million-1 incl.) | ± 20% (vols. 10 to 250 million-1) |
| IGM-11-08-X | nitrogen dioxide (NO2) | 0 to 10 ppm | ± 0.2 million-1 (0-1 million-1 incl.) | ± 20% (vols. 1 to 10 million-1) |
| IGM-11-09-X | ammonia (NH3) | 0 to 300 ppm | ± 4 million-1 (0-20 million-1 incl.) | ± 20% (vols. 20 to 300 million-1) |
| IGM-11-10-X | ammonia of high concentrations | 0 to 1000 ppm | ± 50 million-1 (0-1000 million-1 incl.) | ± 5% (St. 1000 to 5000 million-1) |
| IGM-11-11-X | hydrogen (H2) | From 0 to 2% | ± 0.1% | - |
| IGM-11-12-X | hydrogen cyanide (HCN) | 0 to 30 ppm | ± 2 million-1 (0-10 million-1 incl.) | ± 20% (vols. 10 to 30 million-1) |
| IGM-11-13-X | methanol (CH₃OH) | 0 to 200 ppm | ± 2 million-1 (0-10 million-1 incl.) | ± 20% (vols. 20 to 200 million-1) |
| IGM-11-14-X | ethanol (C2H6O) | 0 to 200 ppm | ± 2 million-1 (0-10 million-1 incl.) | ± 20% (vols. 20 to 200 million-1) |
| IGM-11-15-X | Hydrogen fluoride (HF) | 0 to 10 ppm | ± 0.1 million-1 (0-0.5 million-1 incl.) | ± 20% (vol. 0.5 to 10 million-1) |
