Transmitters in a rail mounted housing from ABB are 2-channel devices providing two 4 ... 20 mA output signals. Due to this feature and their compact design these transmitters can be mounted in confined spaces like connector boxes or cabinets.
 | TR104 | TTR200 |
 | | |
 | | |
| Input | 2-channel | 1-channel |
| RTD (e.g. Pt 100 ) | l | l |
| Thermocouple |  | l |
| mV |  | l |
| Ohm |  | l |
| Output | 2-channel | 1-channel |
4 ... 20 mA / HART
| l / - | l / l |
| Product Features |  |  |
| Galvanic isolation |  | l |
| Programmable |  | l |
| Hardware write protection |  | l |
| Function-LEDs |  | l |
| Certificates |  |  |
| ATEX | l | l |
| GOST | l |  |
| SIL 2/3 |  | l |