EVCO EC7132 User Manual

Ec 7-132

EC 7-132

ON-OFF two outputs digital thermoregulator

Operating instructions
Release 1/00 of November the tenth 2000
Code EC 7-132 DOC E001
File 7132e.p65
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 7-132 is an ON-OFF two outputs digital thermoregulator able to cover a temperature range

from -99 to +999 °C (-99 to +999 °F).
In factory the instrument gets preset to accept at the measure input PTC/NTC probes or “J”/”K”

thermocouples or 2/3 wires Pt 100 probes or 2 and 3 wires 0/4-20 mA temperature transduc-

ers (in this last case it is possible to set the reading scale).
This device can be set to execute one of the following kind of regulation: with an independent

working setpoint and the second relative to the first, with two independent working setpoint (in

these two cases each output can be set for “cooling” or “heating” functioning), with “neutral

zone” functioning.
EC 7-132 is available in the 72 x 72 mm (2.83 x 2.83 in.) case and it is studied for panel

mounting with the equipped U-bracket.

GETTING ST

GETTING STAR

ARTED

TED

INSTALLATION
EC 7-132 was studied for panel mounting, panel cutout 68 x 68 mm (2.67 x 2.67 in.), with the

equipped U-bracket (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 5 mm (0.04 to 0.19 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 7-132 is provided with two extractable screw terminal blocks for cables up to 2.5 mm²

(0.38 in.², for the connection to the power supply, measure input and outputs), 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

give the outputs a protection able to protect them against short circuit and overload

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).

Fig. 1

f7-132.wmf

Fig. 2

iu7132.wmf

If an alarm should be active the instrument displays the alarm code flashing and the buzzer

utters an intermittent beep as long as the cause that has given it does not disappear (see the

chapter SIGNALS AND ALARMS); pressure on the key T1 during an alarm permits to silence

the buzzer.
EC 7-132 is provided with two working setpoint and with some configuration parameters that

get stored in a non volatile memory and that permit to set the instrument according with one’s

requirements (see the chapter CONFIGURABILITY).
During the regulations with an independent working setpoint and the second relative to the first

and with two independent working setpoint, the output K 1 is associated to the first working

setpoint, the output K 2 is associated to the second working setpoint, they remain activated

continuously as long as the temperature read by the probe reaches the working setpoint and

when it rises above (if the outputs were set for “cooling” functioning) or it falls below (if the

outputs were set for “heating” functioning) the respective working setpoint of the hysteresis

value (differential) the outputs get reactivated.
During the regulation with “neutral zone” the output K 1 remains activated continuously as long

as the temperature read by the probe reaches the working setpoint and when it rises above the

working setpoint of the “neutral zone” value the output gets reactivated; likewise the output

K 2 remains activated continuously as long as the temperature read by the probe reaches the

working setpoint and when it falls below the working setpoint of the “neutral zone” value the

output gets reactivated.
WORKING SETPOINT SETTING (WORKING TEMPERATURE)
To modify the first working setpoint value keep pushed the key T3 (the instrument displays the

actual value) and at the same time push and release over and over the key T1 or T2 as long as

the instrument displays the desired value (keeping pushed the key T1 or T2 the value gets

decreased or increased more quickly): after the modification release the key T3 last; for the

two seconds following the release of the key T3 the instrument displays the established value

and the LED L1 flashes quickly to indicate that a first working setpoint setting procedure is

running (passed the two seconds from the release of the key T3 without operated with the keys

the instrument automatically turns out from the working setpoint setting procedure).
To modify the second working setpoint value release and keep pushed the key T3 during the

flashing of the LED L1 (the instrument displays the actual value) and at the same time push

and release over and over the key T1 or T2 as long as the instrument displays the desired value

(keeping pushed the key T1 or T2 the value gets decreased or increased more quickly): after

the modification release the key T3 last; during the pressure of the key T3 the LED L2 flashes

quickly to indicate that a second working setpoint setting procedure is running (to the release

of the key T3 the instrument automatically turns out from the working setpoint setting proce-

dure).
ADDITIONAL INFORMATIONS
-

for the whole period of a corrupted memory data alarm the access to the working

setpoint setting procedure is refused

if the parameter -/0 has value the second working setpoint does not exist

DIMENSIONAL DA

DIMENSIONAL DAT

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

Fig. 3

ds7e.wmf

INST

INSTALLA

ALLA

ALLATION

TION

WITH THE FIXING SYSTEM SUGGESTED BY THE BUILDER
Panel mounting, with the equipped U-bracket (fourth-scale drawing).

Fig. 4

ms7.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

c7-132e.wmf

USE

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

displays the temperature read by the probe.