Configurability, Signals and alarms, Technical da – EVCO EC3T33 User Manual

Page 2: How to order

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 de-

creased or increased more quickly); after the modification release the key T3 last (to the release

of the key T3 the instrument displays the label of the parameter again).
To gain access to the second level enter inside the first level and select the label PA.
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 -19 (keeping

pushed the key T1 or T2 the value gets decreased or increased more quickly): after the modifi-

cation release the key T3 last (to the release of the key T3 the instrument displays the label PA

again); keep pushed at the same time for four seconds at least the keys T1 and T2 (passed four

seconds the instrument displays the first parameter of the second level).
To select a parameter of the second 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

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

creased or increased more quickly); after the modification release the key T3 last (to the release

of the key T3 the instrument displays the label of the parameter again).
To turn out from the configuration parameters setting procedure keep pushed at the same time

for four seconds at least the keys T1 and T2 or do not operate with the keys for sixty seconds at

least (time-out exit).
ADDITIONAL INFORMATIONS
-

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

ration parameters setting procedure is refused

the modification of a parameter value which unit of measure is the hour or the

minute or the second has not immediate effect; to obtain this effect it must not be

executed during the course of the value

the configuration parameters values get stored in a non volatile memory even if a

lack of power supply happens.

CONFIGURABILITY

WORKING SETPOINT
LABELMIN. MAX. U.M. ST.

WORKING SETPOINT

rA1

rA2

(*)

0.0

working setpoint

It establishes the temperature associated to the output K 1.
CONFIGURATION PARAMETERS
LABELMIN. MAX. U.M. ST.

PASSWORD

-90

100 ---

password (§)

It is the password that permits to gain access to the second level.
LABELMIN. MAX. U.M. ST.

MEASURE INPUT

/ 0

---

(**) kind of probe

It establishes the kind of probe that the instrument must recognize to its measure input, as

indicated:

01 = PTC probe

03 = NTC probe

10 = “J” thermocouple

11 = “K” thermocouple

12 = “S” thermocouple

20 = 3 wires Pt 100 probe

21 = 2 wires Pt 100 probe.
/ 1

-25

+25.0 (*)

0.0

calibration (§)

It establishes a threshold to add algebraically to the signal coming from the measure input (for

instance to correct the signal).
/ 2

---

digital filter

It establishes a time constant to apply to the signal coming from the measure input, as indi-

cated:

0 =

0 sec.

1 =

0.4 sec.

2 =

1.2 sec.

3 =

2.8 sec.

4 =

6.0 sec.

5 =

12.4 sec.

6 =

25.2 sec.

/ 5

---

decimal point

It establishes the resolution with which the temperature gets displayed, as indicated:

0 =

the temperature gets displayed with the resolution of the unit of measure

1 =

the temperature gets displayed with the resolution of 1/10 of the unit of measure.

/ 8

---

unit of measure

It establishes the unit of measure with which the temperature gets displayed, as indicated:

0 =

the unit of measure is the Fahrenheit degree

1 =

the unit of measure is the Celsius degree.

LABELMIN. MAX. U.M. ST.

ON-OFF TEMPERATURE REGULATOR ASSOCIATED TO

THE WORKING SETPOINT AND TO THE OUTPUT K 1

rA0

-99

+99.9 (*)

-0.2 hysteresis (differential) (§)

It establishes the hysteresis (differential) relative to the working setpoint.
rA1

-99

+999 (*)

(**) minimum working setpoint programmable

It establishes the minimum working setpoint programmable; the instrument automatically veri-

fies if the value established with the parameter rA1 is below the maximum working setpoint

programmable established with the parameter rA2.
rA2

-99

+999 (*)

(**) maximum working setpoint programmable

It establishes the maximum working setpoint programmable; the instrument automatically veri-

fies if the value established with the parameter rA2 is above the minimum working setpoint

programmable established with the parameter rA1.
rA3

---

“cooling” or “heating” functioning

It establishes the output functioning, as indicated:

0 =

“cooling” functioning

1 =

“heating” functioning.

rA4

---

kind of hysteresis (kind of differential)

It establishes the kind of hysteresis (kind of differential), as indicated:

0 =

asymmetrical

1 =

symmetrical.

rA5

---

locking of the working setpoint modification

It establishes if to prevent the modification of the working setpoint, as indicated:

0 =

the working setpoint can be modified

1 =

the working setpoint can not be modified as long as the parameter rA5 gets set to 0.

LABELMIN. MAX. U.M. ST.

OUTPUT K 1 PROTECTION

CA0 0

999 sec. 0

disabling time to the output activation from the instru-

ment start

It establishes the time that disables the output activation from the moment of the instrument

start.
CA1 0

999 sec. 0

disabling time to the output activation from the previ-

ous activation

It establishes the time that disables the output activation from the moment of the previous

output activation.
CA2 0

999 sec. 0

disabling time to the output activation from the previ-

ous deactivation

It establishes the time that disables the output activation from the moment of the previous

output deactivation.
CA3 0

---

output status during a probe failure alarm

It establishes the status to which the output gets forced during a probe failure alarm, as indi-

cated:

0 =

during a probe failure alarm the output gets forced to the status OFF

1 =

during a probe failure alarm the output gets forced to the status ON.

CA4 0

---

disabling time to the output activation and deactivation

It establishes if to disable the output activation and deactivation for a fixed time, as indicated:

0 =

inactive

1 =

the output activation and deactivation get disabled for 3 sec.

LABELMIN. MAX. U.M. ST.

TEMPERATURE ALARM REGULATOR ASSOCIATED TO

THE FIRST TEMPERATURE ALARM

AA0 +0.1 +999 (*)

+0.1 hysteresis (differential)

It establishes the hysteresis (differential) relative to the parameter AA1.
AA1 -99

+999 (*)

0.0

alarm setpoint

It establishes the temperature to which the temperature alarm gets activated according with the

modality established with the parameter AA4.
AA3 0

999 min. 0

disabling time to the alarm activation from the instru-

ment start

It establishes the time that disables the temperature alarm activation from the moment of the

instrument start.
AA4 1

---

kind of alarm

It establishes the kind of temperature alarm that the instrument must manage, as indicated:

1 =

the temperature alarm never gets activated

2 =

absolute lower temperature alarm

3 =

absolute upper temperature alarm

4 =

lower temperature alarm relative to the working setpoint

5 =

upper temperature alarm relative to the working setpoint

6 =

lower temperature alarm relative to the working setpoint with automatic

recomputation and reenabling

7 =

upper temperature alarm relative to the working setpoint with automatic

recomputation and reenabling.

LABELMIN. MAX. U.M. ST.

TEMPERATURE ALARM REGULATOR ASSOCIATED TO

THE SECOND TEMPERATURE ALARM

Ab0 +0.1 +999 (*)

+0.1 hysteresis (differential)

It has the same significance of the parameter AA0.
Ab1 -99

+999 (*)

0.0

alarm setpoint

It has the same significance of the parameter AA1.
Ab3 0

999 min. 0

disabling time to the alarm activation from the instru-

ment start

It has the same significance of the parameter AA3.
Ab4 1

---

kind of alarm

It has the same significance of the parameter AA4.
LABELMIN. MAX. U.M. ST.

CONNECTION IN A SERIAL NETWORK WITH EVCOBUS

PROTOCOL COMMUNICATION

L 1

---

instrument address

It establishes the address to which the instrument (slave) answers when it is connected to a

serial network with EVCOBUS protocol communication managed from a master (for instance a

Personal Computer).
L 2

---

instrument group

It establishes the group to which the instrument (slave) answers when it is connected to a

serial network with EVCOBUS protocol communication managed from a master (for instance a

Personal Computer).
L 3

240 sec. 30

time-out link

It establishes for which time interval the instrument must store a connection to a serial network

with EVCOBUS protocol communication from the moment in which an interruption of the

connection happens.
L 4

---

baud rate

It establishes the speed with which the data get transmitted in a serial network with EVCOBUS

protocol communication, as indicated:

0 =

1,200 baud

1 =

2,400 baud

2 =

4,800 baud

3 =

9,600 baud.

ADDITIONAL INFORMATIONS
-

the symbol (*) indicates that the unit of measure depends from the parameter / 8

the symbol (§) indicates that the parameter is of the first level

the symbol (**) indicates that the value depends from the measure input preset-

ting requested

if the instrument is preset to accept at the measure input “J”/”K”/”S” thermo-

couples the parameter / 5 does not exist

if the parameter / 8 has value 0 the parameter / 5 does not exist.

SIGNALS AND ALARMS

SIGNALS
If the LED L1 is turned ON it means that the output K 1 is activated.
If the LED L1 flashes it means that a count of a disabling time to the output K 1 activation is

running (see the parameters CA0, CA1, CA2 and CA4).
If the LED L2 is turned ON it means that the unit of measure of the displayed quantity is the

Fahrenheit degree.
If the LED L3 is turned ON it means that the unit of measure of the displayed quantity is the

Celsius degree.
If the instrument displays the indication “---” it means that the working setpoint can not be

modified (see the parameters rA5).
ALARMS
If the instrument displays the indication “E2” flashing and the buzzer utters an intermittent

beep (corrupted memory data alarm) it means that there is a corruption of the configuration

data in the memory (turn OFF and turn ON again the instrument: if to the turning ON again the

alarm does not disappear the instrument must be replaced); during this alarm the access to the

working setpoint setting and the configuration parameters setting procedures is refused and

the output K 1 gets forced to the status OFF.
If the instrument displays the indication “E0” flashing and the buzzer utters an intermittent

beep (probe failure alarm) it means that: the kind of connected probe is not proper (see the

parameter / 0), the probe is faulty (verify the probe integrity), there is a mistake in the instru-

ment-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 tempera-

ture near the probe be inside the limits permitted by the probe); during this alarm the output

K 1 gets forced to the status established with the parameter CA3.
If the instrument displays the indication “E0C” flashing and the buzzer utters an intermittent

beep (cold junction/third wire failure alarm) it means that, if the instrument is preset to

accept at the measure input “J”/”K”/”S” thermocouples there is a mistake in the cold junction

adjustment circuit (the instrument must be replaced), if the instrument is preset to accept at

the measure input 2/3 wires Pt 100 probes and it is set to recognize to its measure input 3

wires Pt 100 probes the third wire of the probe is not connected (verify the instrument-probe

connection integrity); during this alarm the output K 1 gets forced to the status established

with the parameter CA3.
If the instrument displays the indication “AL1” flashing alternated to the temperature read by

the probe and the buzzer utters an intermittent beep (first temperature alarm) it means that

the temperature read by the probe is outside the limit established with the parameter AA1 (see

the parameters AA0, AA1 and AA4); inactive.
If the instrument displays the indication “AL2” flashing alternated to the temperature read by

the probe and the buzzer utters an intermittent beep (second temperature alarm) it means

that the temperature read by the probe is outside the limit established with the parameter Ab1

(see the parameters Ab0, Ab1 and Ab4); inactive.
If the instrument displays the indication “999” flashing (end of scale display) it means that

the temperature read by the probe is outside the working range permitted by the instrument

(verify that the temperature near the probe be inside the limits permitted by the instrument);

inactive.
ADDITIONAL INFORMATIONS
-

the alarm codes are related in order of precedence.

TECHNICAL DA

TECHNICAL DAT

TECHNICAL DATA
Case:

plastic black (PC-ABS), self-extinguishing.

Size:

74 x 32 x 65 mm (2.91 x 1.25 x 2.55 in.).

Installation:

panel mounting, panel cutout 71 x 29 mm (2.79 x 1.14

in.), with the equipped screw or spring brackets.

Type of protection:

IP 54.

Connections:

screw terminal blocks with pitch 5 mm (0.19 in., power

supply, measure input and output) for cables up to 2.5 mm²

(0.38 in.²), five poles single line male connector with pitch

5.08 mm (0.2 in., serial port).

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, 1 VA.

Insulation class:

II.

Alarm buzzer:

incorporated.

Measure inputs:

1 configurable, hardware depending, for PTC/NTC probes

or “J”/”K”/”S” thermocouples or 2/3 wires Pt 100 probes.

Working range:

from -50 to +150 °C (-58 to +302 °F) for PTC probe, from

-40 to +110 °C (-40 to +230 °F) for NTC probe, from -99

to +700 °C (-99 to +999 °F) for “J” thermocouple, from

-99 to +999 °C (-99 to +999 °F) for “K” thermocouple,

from -99 to +999 °C (-99 to +999 °F) for “S” thermocou-

ple, from -99 to +600 °C (-99 to +999 °F) for 2/3 wires Pt

100 probes.

Setting range:

from -99 to +999 °C (-99 to +999 °F).

Resolution:

1 °F with unit of measure in Fahrenheit, configurable for

0.1 (except the instruments preset to accept at the meas-

ure input “J”/”K”/”S” thermocouples) or 1 °C with unit of

measure in Celsius.

Display:

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

with automatic decimal point and minus sign, output sta-

tus indicator, unit of measure of the displayed quantity in-

dicators.

Outputs:

one change-over contact 8 (3) A @ 250 Vac relay for regu-

lation load management.

Serial port:

TTL with EVCOBUS protocol communication, for the con-

nection to the CLONE configurer/cloner and RICS super-

vision systems.

HOW TO ORDER

CODING SYSTEM
Instrument name:

EC 3-T33.

Desired measure input:

P (for PTC/NTC probes),

J (for “J”/”K”/”S” thermocouples),

C (for 2/3 wires Pt 100 probes).

Desired power supply:

220 (230 Vac),

115 (115 Vac).

Options:

custom configuration.