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Rosemount 3490 Universal Control and Display Unit
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The Rosemount 3490 Series of wall and panel mounted control units provide comprehensive control functionality for any 4-20 mA or HARTÂ® compatible transmitter. A back-lit display gives clear visual indication of the measured value and status of all inputs and outputs. The 3490 provides an intrinsically safe 24V dc power supply to the transmitter. Five relays are provided and are fully field programmable to perform a wide variety of control, fault indication or alarm duties.
- Tough weatherproof wall mount enclosure for internal or external mounting
- Accepts any 4-20 mA or HART compatible input
- Five field adjustable control relays
- Bright local display of measured value
- Pre-programmed with tank shapes, flow algorithms and pump control routines to simplify configuration
||3491 - Standard Control Unit|
3492 - Differential Control Unit
3493 - Logging Control Unit
||Wall mount or Panel mount|
||115 / 230Vac or 24Vdc |
||4-20mA (Earth referenced in control unit) or HART digital communications (Rev. 5) |
||Dot matrix LCD, 32 x 122 pixels, back lit |
||5 SPCO (SPDT), 5A at 240V ac |
||2 voltage-free contact closures|
||5 times per second |
|Materials of construction (IP-rated wall mount)
||Polycarbonate enclosure and cover. |
|Materials of construction (panel mount)
||Polyphenylene oxide enclosure and polycarbonate cover. |
|Materials of construction (NEMA4X-rated wall mount)
||Polyester and monel fastening.|
||-40 Â°C to +55 Â°C (-40 Â°F to + 131Â°F)|
||CE-mark, ATEX, IECEx, CSA, or UL |
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