

| Specification | |
| General  | |
| Inputs  | 4-20mA  | 
| Capacity  | 2 channels (ECHO 2) 4 channels (ECHO 4)  | 
| Display  | Number of channels  | 
|  | Measured value  | 
|  | Unit  | 
|  | Alarm, fault, test  | 
| Measurement range  | % LEL, ppm, % Vol.  | 
| Alarm threshold  | 4  | 
| Warranty  | 1 year  | 
| Output signals  | |
| Analogue  | none  | 
| Digital  | RS 485/422 ModBus or RS 232  | 
| Relay output  | 4 alarm relays configurables and one default  | 
| Electrical  | |
| Power supply  | 115 or 230V AC (50/60Hz)  | 
| Environmental  | |
| Storage temperature  | -40°C to + 70°C  | 
| Operational temp.  | 0°C to + 40°C  | 
| Humidity  | 90% (non-condensing)  | 
| Certifications  | |
| Standards  | EN 50054/50057, 89/336/CE (CEM), EN 50081, 50082  | 
| Housing  | |
| Material  | Metallic  | 
| Weight  | 6,3 Kg  | 
| Dimensions  | 238 x 350 x 160 (LxWxdepth) mm  | 
| Options  | |
| Output  | RS 485/422 ModBus/JBus  | 
| References  | |
| ECHO 2  | Control unit, capacity 2 measurement channels  | 
| ECHO 4  | Control unit, capacity 4 measurement channels  | 
| MOD 8 REL  | Extension relays card (8 relays)  | 
| 产品名称 | 产品简介 | 产品编号 | 
|---|---|---|
| ECHO2/4气体检测仪 | Compact and reliable stand-alone controllers. Gas detection units ECHO 2 and ECHO 4 are designed as optimum solutions for small installations. | MR-06547-00 |