Eilwell EWPLUS971/974 Temperature Electronic controllers for refrigeration units
GENERAL DESCRIPTION -DIGITAL CONTROLLER EWPLUS971/974
Model EWPLUS 961, format 32 x 74 x 50 mm, is a digital thermostat with off cycle defrost designed forrefrigeration applications at normal temperature.
It provides a relay output to drive the compressor.
It is also provided with 2 NTC probe input.
The instrument is fully configurable through special parameters that can be easily programmed through the keyboard or the by HOTKEY.
It has 4 relay outputs to control compressor, fan, defrost, which can be either electrical or reverse cycle (hot gas) and light (configurable).
It could be provided with a Real Time Clock which allows programming of up to 6 daily defrost cycles, divided into holidays and workdays. A "Day
and Night" function with two different set points is fitted for energy saving.
It is also provided with up to four NTC or PT1000 probe inputs, the first one for temperature control, the second one, to be located onto the evaporator, to control the defrost termination temperature and to managed the fan. One of the 2 digital inputs can operate as third temperature probe. The fourth probe is used to signal the condenser temperature alarm or to display a temperature.
The instrument is fully configurable through special parameters that can be easily programmed
through the keyboard.
Specifications :
| Part Number |
IDPlus 902-961-971-974 |
| Operating Temperature |
-5...55 |
| Storage Temperature |
-30…85 |
| Ambient Humidity |
10…90% RH (non-condensing) |
| Power Supply |
230Vac |
| Power Draw |
3W max |
| Display Range |
NTC: -50,0…+110,0 °C
PTC: -55,0…+140,0 °C
Pt1000: -55,0...+150,0 °C |
| N. Analogue Inputs |
1 |
| Analogue Inputs |
1x PTC or NTC or Pt1000 |
| N. Digital Inputs |
1 |
| Digital Inputs |
1x SELV |
| N. Digital Outputs |
1 |
| Digital Outputs |
1x SPDT 1/2Hp 8(4)A 250Vac |
| Display |
LED 3 digits + sign |
| Resolution ( 0.1°C with decimal point ) |
1 or 0,1°C |
| Measurement Range |
-55,0…+150,0°C |
| Accuracy |
better than 0,5% of full scale + 1 digit |
| Connectivity |
TTL port for connection to UnicardCopy Card or TelevisSystemModBus monitoring device |
| N. Serial Ports |
1 |
| Serial Ports |
1x TTL |
| Installation |
panel, 71x29mm |
| Accessories |
Unicard USB/TTL |
| Functions |
HACCP, DCC, Easy Map, COH |
| Weight (g) Net |
190 |
| Width (L) Net |
79 |
| Height (Ht) Net |
37 |
| Depth (P) Net |
59 |
| Weight (g) Packaging |
207 |
| Width (L) Packaging |
130 |
| Height (Ht) Packaging |
90 |
| Depth (P) Packaging |
50 |
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