 | Miebo Tech Export is a trading and technology company focussed on instrumentation and systems like Gestra. We supply for customers in the industry and the the plant engineering and construction. |
 |
|
Gestra level controller with NRR |
|
|
|
|
Modulating level control for use in conjunction with the GESTRA level probe type NRG 21 or NRG26 and a control valve with electric actuator.
- Type-approval No. TÜV WR/WS 89-317
- Input: Three connections for NRG 21 or NRG 26
- Output: Volt-free relay contacts for powering reversible electric actuator
max. contact rating: 250 V, 500 W, 3 A resistive with a life of 4 x 105 switching cycles or 0.35 A inductive with a life of 2 x 106 cycles; contact material silver, hard-gold plated
- Proportional band: adjustable with potentiometer setting range: 1.5 to 20
- Feedback: via valve-positioning potentiometer, 1000 ft
- Dead band: ±10 % of adjusted proportional band
- Adjustors: for set point and proportional band each with a potentiometer, measuring range depending on probe length, proportional band 1.5 to 20%
- Indicators: One null indicator as error signal meter, Two LEDs for signalling the valve direction: OPENING, CLOSING
- Mains supply: 24V, 110 V, 120 V, 220V, 240V, 50 ... 100 Hz, 3.5VA, 24 VDC supply also possible with the ancillary unit type URN-1
- Protection IP40, Permissible ambient temperature 0. . . 50° C
- Case materials: Base- ABS plastic, black; Cover- polystyrene (highly shock-resistant), stone grey
|
|
|
Nrr - Gestra level controller.
|
