EVCO EC7133 User Manual
Ec 7-133, On-off single output digital thermoregula- tor, General informations
EC 7-133
ON-OFF single output digital thermoregula-
tor
Operating instructions
Release 1/99 of March the eleventh 1999
Code EC 7-133 DOC E000
File 7133e.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 INFORMATIONS
WHAT IS THE USE
EC 7-133 is an ON-OFF single output 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 trans-
ducers (in this last case it is possible to set the reading scale).
Some parameters permit to set the thermoregulator for cooling or heating functioning, to
protect the connected load against overloads due to several starts repeated in a short time, to
signal working conditions outside the safety limits.
EC 7-133 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 STARTED
INSTALLATION
EC 7-133 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 7-133 is provided with one extractable screw terminal block for cables up to 2.5 mm²
(0.38 in.², for the connection to the power supply, measure input and output), 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 9 and 10 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 output a protection able to protect it 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
f7-133.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.
Fig. 2
iu7133.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 7-133 is provided with one working setpoint and with some configuration parameters that
get stored in a non volatile memory and that permit to set the instrument according with ones
requirements (see the chapter CONFIGURABILITY).
The output K 1 is associated to the working setpoint, it remains activated continuously as long
as the temperature read by the probe reaches the working setpoint and when it rises above (if
the output was set for cooling functioning) or it falls below (if the output was set for heating
functioning) the working setpoint of the hysteresis value (differential) the output gets reacti-
vated.
WORKING SETPOINT SETTING (WORKING TEMPERATURE)
To modify the 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; during the
pressure of the key T3 the LED L1 flashes quickly to indicate that a working setpoint setting
procedure is running (to the release of the key T3 the instrument automatically turns out from
the working setpoint setting procedure).
ADDITIONAL INFORMATIONS
-
for the whole period of a corrupted memory data alarm the access to the working
setpoint setting procedure is refused
-
the working setpoint is programmable within the limits established with the param-
eters rA1 and rA2
-
if the parameter rA5 has value 1 the working setpoint can not be modified as long as
the parameter rA5 gets set to 0
-
the working setpoint value gets stored in a non volatile memory even if a lack of
power supply happens.
CONFIGURATION PARAMETERS SETTING
Configuration parameters are arranged on two levels, to protect the most tricky settings against
undesirable violations and they are arranged in families that can be recognized through the
initial letter of the label.
To gain access to the first level keep pushed at the same time for four seconds at least the keys
T1 and T2 (passed four seconds the instrument displays the label PA).
To select a parameter of the first level push and release over and over the key T1 or T2 as long
as the instrument displays the label of the desired parameter.
To modify the parameter 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
1
DIMENSIONAL DATA
OVERALL DIMENSIONS AND PANEL CUTOUT
The dimensions are expressed in millimetres and inches (fourth-scale drawing).
Fig. 3
ds7e.wmf
INSTALLATION
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 DATA
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
c7-133e.wmf
4