EN |
SERIE M
| User and Maintenance Manual
46
CONDITIONS OF USE
Permitted use
For safety reasons the instrument must be installed and used according to the instruction provided and in particular, under normal conditions, parts
bearing dangerous voltage levels must not be accessible. The device must be adequately protected from water and dust as per the application and
must also only be accessible via the use of tools (with the exception of the frontlet). The device is ideally suited for use on household equipments
and/or similar refrigeration Refrigerated Serve-over Display and has been tested with regard to the aspects concerning European reference standards
on safety. It is classified as follows:
• according to its manufacture: as an automatic electronic control device to be incorporated;
• according to its automatic operating features: as a 1 B-type operated control type;
• as a Class A device in relation to the category and structure of the software;
• device with pollution grade 2;
• as a device with class D fire resistance;
• overvoltage category grade II;
• device made with class IIIa material;
Unpermitted use
Any other use other than that permitted is de facto prohibited. It should be noted that the relay contacts provided are of a practical type and
therefore subject to fault. Any protection devices required by product standards or dictated by common sense due to obvious safety reasons should
be applied externally.
TECHNICAL DATA
Mechanical Caracteristics
Front protection:
IP65.
Housing:
PC+ABS UL94 V-0 resin plastic casing, polycarbonate glass, thermoplastic resin keys.
Dimensions:
front 74x32 mm, depth 59 mm (excluding terminals).
Mounting:
panel mounting with 71x29 mm (+0.2/-0.1 mm) drilling template.
Terminals:
screw/removable terminals for cable with a diameter of 2,5mm
2
Connectors:
TTL for connection to Copy Card
Temperature:
Operating: -5 … +55 °C - Storage: -30 … +85 °C
Humidity:
Operating / Storage: 10…90 % RH (not condensing).
Electrical Caracteristics
Power Supply:
230Vac (+10% / -10%) 50/60 Hz
Consumption:
4.5W max
Display Range:
NTC: -50.0°C
...
+110°C (on display with 3 digit + sign)
Accuracy:
Better than 0,5% of full-scale + 1 digit.
Resolution:
0,1 °C.
Buzzer:
YES (it depends from the model)
Analogue Input:
EW961
: 1 NTC input. -
EW971
and
EW974
: 2 NTC inputs.
Digital Input:
1 voltage-free digital input
Digital Output:
EW961
: 1 Compressor relay: UL60730 (A) 1,5 Hp (10FLA - 60LRA) max 250Vac o
UL60730 (B) 2 Hp (12FLA - 72LRA) max 250Vac
EW971
: 1 Defrost relay:
N.O. 8(4)A - N.C. 6(3)A max 250Vac
1 Compressor relay: UL60730 (A) 1,5 Hp (10FLA - 60LRA) max 250Vac o
UL60730 (B) 2 Hp (12FLA - 72LRA) max 250Vac
EW974
: 1 Defrost relay:
N.O. 8(4)A - N.C. 6(3)A max 250Vac
1 Compressor relay: UL60730 (A) 1,5 Hp (10FLA - 60LRA) max 250Vac o
UL60730 (B) 2 Hp (12FLA - 72LRA) max 250Vac
1 Fan relay:
5(2)A max 250Vac
Regulations
Electromagnetic compatibility: This device complies with Directive 2004/108/EC and the harmonised standard EN 60730-2-9
Security:
This device complies with Directive 2006/95/EC and the harmonised standard EN 60730-2-9
Food safety:
This device complies with standard EN 13485 as follows:
- suitable for storage
- climate range A
- measurement class 1 in the range from -35°C to 25°C (*)
(* exclusively using Eliwell NTC probes)
Classification:
operating (not safety) device for integration.
NOTE 1: check the power supply specified on the instrument label; for relay, power supply capacities and PTC probes, contact the Sales
Office.
NOTE: The technical data included in this document, related to measurement (range, accuracy, resolution, etc.) refer to the instrument
itself, and not to its Refrigerated Serve-over Display such as, for example, sensors. This means, for example, that sensor(s) error(s) shall
be added to the instrument’s one.
TABLE OF PARAMETERS
PAR
.
Level DESCRIPTION
SEt
Temperature SEtpoint.
COMPRESSOR
