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- Model 3491 4-20mA & Hart Compatible Control Units
Model 3491 4-20mA & Hart Compatible Control Units
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Rosemount Series 3490 Control Units provide control functionality for any 4-20 mA or HART® compatible transmitter.
- Model 3491: Standard Control Unit
- NEMA-4X Weatherproof wall mount enclosure for internal or external mounting
- Accepts any HART compatible or 4-20 mA input
- 5 voltage free SPDT relays for alarm & control duties
- Local birght display of measured values
- Pre-programmed w/tank shapes, flow algorithms & pump control routines
- 20 point strapping table facility for non-standard applications
- Power options: 115 ⁄ 230Vac or 24Vdc
- Ambient temperature: -40 °F to + 131°F (-40 °C to +55 °C)