Superheating regulators

Dixell overheating regulator (open / close) XEV 12D for electronic Expansion valves

Order No.: 231.3401
Manufacturer number: XEV12D-5P1C0-1.6
Manufacturer: Dixell

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Description

Controller for pulse modulated valve with display. The XEV12D module controls pulse modulated expansion valves (OPEN/CLOSED) for regulating superheating SH of the refrigerant, measured at the evaporator outlet, for optimising and improving performance of the cooling system. The control ...

Controller for pulse modulated valve with display. The XEV12D module controls pulse modulated expansion valves (OPEN/CLOSED) for regulating superheating SH of the refrigerant, measured at the evaporator outlet, for optimising and improving performance of the cooling system. The control algorithm is based upon many years of experience. The pre-configured parameters have been determined through testing in real world applications by Dixell. This means that only minor changes to the parameters will need to be made for customer-specific applications. The XEV12D modules feature two sensor inputs for pressure probe PP12 with 4÷20 mA and configurable for temperature sensor Pt1000/NTC. In larger cooling applications with several expansion valves, it is sufficient to have just one XEV12D measuring the intake pressure since this will be the same for all expansion valves. So that all other XEV12D are informed of the pressure value, they are connected via a 2-wire LAN. There are two configurable inputs, one of which is required for the cooling requirement. The second digital input is not necessarily required. For example, it could be used for signalling that “defrosting is currently active”. The display shows the operating status and can be used for visualising SH, percentages or measured values. No additional equipment is required for programming. The RS485 interface for XWEB logging systems is integrated as standard.

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Features

  • Anschlüsse: Schraubklemmen ≤ 2,5 mm²
  • Digitaleingänge: 1 x potential-frei, 1 x Spannungseingang
  • Datenspeicher: nicht flüchtiger Speicher (EEPROM)

Accessories / Replacement parts

  • Interface adapter
    Dixell interface adapter XJ485CX+CAB/RS
    Order No.: 291.3435
  • Pressure transmitter
    Dixell pressure transmitter PP07 | -0.5 to 7 bar | 4 to 20 mA
    Order No.: 297.3412
  • Dixell pressure transmitter PP30 | 0 to 30 bar | 4 to 20 mA
    Order No.: 297.3413
  • Probe / sensor
    Dixell temperature sensor NTC NG6 1,5m (black) 6x15mm plastic
    Order No.: 298.1715
  • Dixell temperature sensor NTC NG6 3,0m (black) 6x15mm plastic
    Order No.: 298.1718
  • Dixell tube fitted sensor NTC 1,5m -40/+110C SN7RK150
    Order No.: 298.3438
  • Programming key
    Dixell programming key Hot Key
    Order No.: 291.3406
  • Transformer
    Dixell transformer TF20D | 20 VA | 230 => 24 V AC | DIN
    Order No.: 298.1802

Technical data

Dimensions
Width
70 mm
Height
85 mm
Depth
61 mm
General information
Connection terminals
abnehmbare Schraubklemmen, Kabelquerschnitt ≤ 2.5 mm²
Display fields
drei Ziffern, rote LED, Höhe 14,2 mm
Type
Überhitzungsregler
Housing
selbstverlöschender Kunststoff
Housing size
4 DIN-Modul 70x85 mm; Tiefe 61mm
Communication
RS485
Mounting type
DIN-Schiene Omega 3
Type
XEV12D5P1C0
Electrical Data
Outputs
1x Triac 30W max; 1x Wechsler-Relais 8(3) A, 250Vac
Inputs
analogue inputs:
 
1x NTC/Pt1000
 
1x 4-20mA/0-5Vdc;
 
digital inputs:
 
1x zero potential
 
1 x 230 Vac
Protection class
IP20
Supply voltage
230/1/50 V/Ph/Hz
Temperature data
Storage temperature
-25 bis +60 °C
Temperature measuring range
max.
60 °C
min.
0 °C
Technical modifications reserved. Product images may differ from the actual product and are meant for demonstration purposes only. Absolutely no liability can be assumed for possible indication errors and errors in the manufacturers’ information.

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