MP2000 AIR CONDITIONERS

Sistema di controllo a microprocessore per condizionatori d'aria • Air conditioners microprocessor control system

TERMOSTATO ELETTRONICO A MICROPROCESSO- RE A 2 STADI - EWPC 905/T

Questo termostato, normalmente posizionato nel quadro elettrico, è impiegato per la gestione di accessori partico- lari.

Il regolatore visualizza costantemente la temperatura del- l'aria o dell'acqua letta dalla sonda PTC 1000.

 

 

 

 

 

 

 

VISTA FRONTALE

 

 

 

 

 

 

 

FRONTAL VIEW

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

°C

35

 

 

UP

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

I I I

 

 

DOWN

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

SET

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

MICROPROCESSOR CONTROLLED 2 STAGE ELEC- TRONIC THERMOSTAT - EWPC 905/T

This thermostat, normally placed in the electric box, is used for particular optional management.

The controller continuously displays the water or air tem- perature read by the sensor PTC 1000.

VISTA POSTERIORE

BACK VIEW

 

 

 

 

 

24Vac

 

 

1

2

3

4

5

6

7

8

9

75

60

Fig.113

SET (uscite ON-OFF):Premendolo e rilasciandolo si ottiene la visualizzazione del set point 1. Alla successiva attuazione si ha la visualizzazione del set point 2. Il funzio- namento è ciclico. Il LED I e II lampeggiante indica il set point visualizzato. È possibile variare il valore agendo sui tasti UP e DOWN.

UP e DOWN : Pulsanti per l'incremento e il decremento dei valori. Utilizzato sia per la variazione del set point che per quella dei parametri. Tenendoli premuti si avrà una varia- zione veloce.

LED I: LED uscita 1. Durante la visualizzazione del Set point e la programmazione dei parametri lampeggia. LED II: LED uscita 2.

PROGRAMMAZIONE PARAMETRI

L'ingresso in programmazione si ottiene tenendo premuto il tasto SET per più di 4 secondi. Compare la prima label ed il LED I lampeggia. Per passare agli altri parametri premere UP o DOWN. Per visualizzare il valore del parametro indicato dalla label premere SET. Per variarlo tenere pre- muto SET ed agire sui tasti UP o DOWN. Memorizziamone automatica non agendo sui pulsanti.

DESCRIZIONE PARAMETRI

d1 (Differential). Differenziale di intervento del set point 1. Può essere settato a valori positivi (raffreddamento) o negativi (riscaldamento).

d2 (Differential). Set point 2. Analogo al d1.

db (Dead band). Rappresenta il valore da sommare o sottrarre al set per cui avviene rispettivamente l'attivazio- ne del relè 2 o del relè 1. Una volta che un relè è attivato, questo si disattiverà al raggiungimento del set point.

LS1 (Lower Set1). Valore minimo set point 1 .

LS2 (Lower Set 2). Valore minimo set point 2 .

HS1 (Higher Set 1). Valore massimo set point 1 .

HS2 (Higher Set 2). Valore massimo set point 2 .

Od (Output delay). Tempo di ritardo attivazione relè. Usato per ritardare le uscite nel caso di ambienti di utilizzo molto disturbati a livello elettrico.

CAL (CALibrazione). Rende possibile un eventuale ricalibrazione dello strumento.

Ft (Function type). Modo di funzionamento uscite. on = ON-OFF - nr = Zona neutra

OCO (Output connection): Dipendenza tra i set point.

di = dipendenti (Set point I = Set I) (Set point II = Set II) in = indipendenti.

178

SET (ON-OFF outlets): Pushed once the set point 1 value will be displayed for 3 seconds (LED output 1 blinks). Pushed once again within 3 seconds the set point 2 value will be displayed (LED output 2 blinks).

The set point can be changed with the UP or DOWN buttons.

UP and DOWN : Used to increase or decrease the set point value, as well as the parameter when in programming. When held down for a few seconds, the change rate accelerates.

LED I: Status light of output 1. Blinks when in set point display/change mode or during programming.

LED II: Status light of output 2.

PARAMETERS PROGRAMMING

Parameters programming by holding the SET button down for more than 4 seconds. The first parameter is displayed while the LED I blink. Other parameters are accessible with the UP and DOWN buttons. With the SET button, the actual setting of each parameter is displayed. To change a param- eter set, push the SET plus the UP or DOWN. Automatic memorization without buttons pressing.

DESCRIPTION OF PARAMETERS

d1 (Differential). The switching differential set point 1 can be set with positive value (cooling) or with negative value (heating).

d2 (Differential). Same as d1.

db (Dead band). This is the temperature span above and below the set point beyond which relay 1, respectively relay 2 are energized; once an output is energized, the output remains ON until set point is reached.

LS1 (Lower Set1). Lower set 1.

LS2 (Lower Set 2). Lower set 2.

HS1 (Higher Set 1). Higher set 1.

HS2 (Higher Set 2). Higher set 2.

Od (Output delay). This provide a delay selection for the outputs in applications where electrical noise may cause brief erroneous signals from the sensor to the controller.

CAL (CALibration). This offers an adjustment up or down of the read-out, if needed.

Ft (Function type). Control mode selection (output 1) on = ON-OFF - nr = Dead zone

OCO (Output connection): Set point dependency

di = dependent (Set point I = Set I) (Set point II = Set II)

in = independent.

RC GROUP - 149_ItEn.0102

Page 178
Image 178
Dell MP2000 manual D2 Differential. Same as d1, OCO Output connection Set point dependency

MP2000 specifications

The Dell MP2000 is a versatile multimedia projector designed to deliver impressive performance for both business and entertainment purposes. This projector offers a sleek design and robust features, making it an ideal choice for presentations, classroom environments, and home theater setups.

One of the standout features of the Dell MP2000 is its high brightness capability. With a brightness rating of about 3,000 ANSI lumens, it ensures clear and vivid projections even in well-lit environments. This brightness level makes it suitable for various settings, from large conference rooms to small classrooms, ensuring that the content is easily visible to all audiences.

In addition to its brightness, the MP2000 boasts a native resolution of XGA (1024x768 pixels), providing sharp and detailed images. The projector supports a range of resolutions up to UXGA (1600x1200), ensuring compatibility with various media formats. This versatility allows users to project high-quality videos, presentations, and images with excellent clarity.

The MP2000 employs DLP (Digital Light Processing) technology, which enhances image quality and color accuracy. DLP is known for its superior brightness and contrast characteristics, giving presentations a professional look. The projector’s color wheel ensures vibrant colors, making it perfect for showcasing graphics and videos.

Connectivity options on the Dell MP2000 are extensive, catering to various devices and media sources. It includes multiple input ports, such as VGA, HDMI, and USB, allowing easy connection to laptops, desktops, and other devices. The inclusion of an RS-232 port also enables integration into larger AV systems for more streamlined control.

Portability is another key characteristic of the MP2000. Weighing less than 5 pounds, it is easy to transport, making it a great option for traveling professionals or educators who need to move between locations. The projector also features an intuitive interface and remote control, facilitating user-friendly navigation through menus and settings.

For added convenience, the MP2000 supports rapid startup and shutdown processes, reducing waiting times between presentations. Its lamp life is impressive, lasting up to 5,000 hours in eco mode, which minimizes maintenance costs and ensures longevity.

In conclusion, the Dell MP2000 is a powerful and reliable projector that excels in brightness, image quality, and connectivity. Its DLP technology, portability, and user-friendly features make it a top choice for anyone looking to enhance their presentation or home viewing experience. Whether for educational purposes or business meetings, the MP2000 delivers outstanding performance and versatility.