EVCO EC2311 User Manual

Ec 2-311

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EC 2-311

Small size digital thermometer supplied from

main voltage

Operating instructions
Version 1.00 of April the fifteenth 2002
File ec2311e_v1.00.pdf
PT
IMPORTANT:
The use of this new instrument is easy; but for safety reasons, it is

important read these instructions carefully before the installation or

before the use and follow all additional informations.
It is very important keep these instructions with the instrument for future

consultations.

ENGLISH

GENERAL INFORMA

GENERAL INFORMATIONS

TIONS

WHAT IS THE USE
EC 2-311 is a small size digital thermometer; the instrument can be supplied from main voltage

(230 Vac) with a very low power consumption (0.35 VA).
In factory the instrument gets preset to accept at the measure input PTC with 990 Ohm @ +25

C, +77 °F or NTC with 10 KOhm @ +25 °C, +77 °F and B=3435 or NTC with 100 KOhm @ +25

C, +77 °F and B=3977 probes; adjustments of the displayed value can be done through the

suitable trimmer.
EC 2-311 is available in the 62 x 28 mm (2.44 x 1.10 in.) case and it is studied for panel

mounting with elastic fins.

GETTING ST

GETTING STAR

ARTED

TED

INSTALLATION
EC 2-311 was studied for panel mounting, panel cutout 58 x 25 mm (2.28 x 0.98 in.), with

elastic fins (the overall dimensions and the panel cutout are related in Fig. 3, the fixing system

suggested by the builder is related in Fig. 4).
ADDITIONAL INFORMATIONS
-

the panel thickness must be included from 1 to 3 mm (0.04 to 0.11 in.)

verify if the using conditions (ambient temperature, humidity, etc.) are within the

limits indicated by the builder (see the chapter TECHNICAL DATA)

install the instrument in a location with a suitable ventilation, to avoid the internal

overheating of the instrument

do not install the instrument near surfaces that can to obstruct the air-grating (car-

pets, covers, etc.), heating sources (radiators, hot air ducts, etc.), locations sub-

ject to direct sunlight, rain, humidity, excessive dust, mechanical vibrations or

bumps, devices with strong magnetos (microwave ovens, big speakers, etc.)

according with the safety norms, the protection against possible contacts with

electrical parts and parts protected with functional insulation only must be ensured

through a correct installation procedure of the instrument; all parts that ensure the

protection must be fixed so that they can not be removed if not with a tool.

ELECTRICAL CONNECTION
EC 2-311 is provided with two screw terminal blocks for cables up to 2.5 mm² (0.38 in.², for the

connection to the power supply and measure input), located on the instrument back panel (the

connections to derive are related in Fig. 5 and they are checkable on the polyester label stuck

on the instrument case).
ADDITIONAL INFORMATIONS
-

if the instrument is brought from a cold to a warm location, the humidity may con-

dense inside the instrument; wait about an hour before supply the instrument

verify if the operating power supply voltage, electrical frequency and power of the

instrument correspond to the local power supply (see the chapter TECHNICAL

DATA)

do not supply more instruments with the same transformer

if the instrument is installed on a vehicle, its power supply must be derived directly

from the battery of the vehicle

give the instrument a protection able to limit the current absorbed in case of failure

the instrument remains connected to the local power supply as long as the termi-

nals 1 and 2 are derived to the local power supply, even if the instrument is appar-

ently turned off

give the probe a protection able to insulate it against possible contacts with metal

parts or use insulated probes

do not try to repair the instrument; for the repairs apply to highly qualified staff

if you have any questions or problems concerning the instrument please consult

Every Control (see the chapter BUILDER DATA).

USE

PRELIMINARY INFORMATIONS
After derived the connections related in Fig. 5, during the normal functioning the instrument

Fig. 1

f2-311.wmf

Fig. 2

adj2311.wmf

If an alarm should be active the instrument displays the alarm code flashing as long as the

cause that has given it does not disappear (see the chapter ALARMS).

ALARMS

ALARMS
If the instrument displays the indication “E0” flashing (probe failure alarm) it means that: the

kind of connected probe is not proper (verify the kind of connected probe), the probe is faulty

(verify the probe integrity), there is a mistake in the instrument-probe connection (verify the

instrument-probe connection integrity), the temperature read by the probe is outside the limits

permitted by the probe in use (verify that the temperature near the probe be inside the limits

permitted by the probe); inactive.

TECHNICAL DA

TECHNICAL DAT

TECHNICAL DATA
Case:

plastic black (PPO), self-extinguishing, open case.

Size:

62 x 28 x 40 mm (2.44 x 1.10 x 1.57 in.).

Installation:

panel mounting, panel cutout 58 x 25 mm (2.28 x 0.98 in.),

with elastic fins.

Type of protection:

IP 54.

Connections:

screw terminal blocks with pitch 7.5 mm (0.29 in., power

supply) and with pitch 5 mm (0.19 in., measure input) for

cables up to 2.5 mm² (0.38 in.²).

Ambient temperature:

from 0 to +60 °C (+32 to +140 °F, 10 ... 90 % of not con-

densing relative humidity).

Power supply:

230 Vac or 115 Vac, 50/60 Hz, 0.35 VA.

Insulation class:

II.

Measure inputs:

1 configurable, hardware depending, for PTC with 990 Ohm

@ +25 °C, +77 °F or NTC with 10 KOhm @ +25 °C, +77 °F

and B=3435 or NTC with 100 KOhm @ +25 °C, +77 °F and

B=3977 probes.

Working range:

from -50 to +150 °C (-58 to +302 °F) for PTC with 990

Ohm @ +25 °C, +77 °F probe, from -40 to +110 °C (-40 to

+230 °F) for NTC with 10 KOhm @ +25 °C, +77 °F and

B=3435 probe, from +50 to +300 °C for NTC with 100 KOhm

@ +25 °C, +77 °F and B=3977 probe.

Resolution:

1 °C (1 °F).

Display:

3-digit display 12.5 mm (0.49 in.) high red LED display

with automatic minus sign.

ADDITIONAL INFORMATIONS
-

the effective probes working range principally depends from the kind of sensor and

from the material that forms the bulb and the cable.

HOW TO ORDER

CODING SYSTEM
Instrument name:

EC 2-311.

Desired measure input:

P (for PTC with 990 Ohm @ +25 °C, +77 °F probes),

N (for NTC with 10 KOhm @ +25 °C, +77 °F and B=3435

probes),

DIMENSIONAL DA

DIMENSIONAL DAT

OVERALL DIMENSIONS AND PANEL CUTOUT
The dimensions are expressed in millimetres and inches (third-scale drawing).

Fig. 3

ds2ae.wmf

INST

INSTALLA

ALLA

ALLATION

TION

WITH THE FIXING SYSTEM SUGGESTED BY THE BUILDER
Panel mounting, with elastic fins (third-scale drawing).

Fig. 4

ms2.wmf

ELECTRICAL CONNECTION

CONNECTIONS TO DERIVE
Instance of typical application.

BUILDER DA

BUILDER DAT

EVERY CONTROL S.r.l.
Via Mezzaterra 6, 32036 Sedico Belluno ITALY
Phone 0039/0437852468 (a.r.) Fax 0039/043783648
Internet addresses
e-mail: [email protected]
http://www.everycontrol.it
TO BE CAREFUL
This publication exclusively belongs to EVERY CONTROL and shall not be reproduced and distributed if not expressly authorized by the same EVERY CONTROL.
EVERY CONTROL does not assume any responsibility in order to the characteristics, to the technical data and to the possible mistakes related herein or deriving from the use of the same.
EVERY CONTROL can not be considered responsible for damages caused from the inobservance of the additional informations.
EVERY CONTROL reserves the right to make any modification without prior notice and at any time without prejudice the basic functioning and safety characteristics.

Fig. 5

c2-311e.wmf

displays the temperature read by the probe; adjustments of the displayed value can be done

through the suitable trimmer.

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