Bartec DTL III Ex User manual

11-8865-7D0001_A-03/2019-288307
Digital safety temperature limiter DTL III Ex
Type 17-8865-4.22/2200 3000
Operating manual
RU C-DE.ГБ06.B.00399

11-8865-7D0001_A-03/2019-288307
Reservation
Technical data subject to change without notice.
Changes, errors and misprints may not be used as a basis for any claims for damages.
EN 2/12

11-8865-7D0001_A-03/2019-288307
Content
1. Use in accordance with the intended purpose 2
2. Product description 2
2.1. General points
2.2. Display and control elements
3. Safety instructions 3
4. Assembly, installation and commissioning 3
4.2. Installation
4.3. Commissioning
5. Basic settings of the system parameters 4
5.1. General points
5.2. Setting of the limit value (AL1)
5.3. Setting of the pre-Alarm (AL2)
5.4. Setting of the password for RESET (PAS.1)
5.5. Setting of the password for system parameters
(incl. limit value) (PAS.2)
6. Mode of operation of the device 5 - 6
6.1. Temperature limitation, pre-Alarm, service entry
6.2. Remote reset
6.3. Service entry
7. Operation, maintenance 6
8. Measuring circuit monitoring 6
9. Tests 6
10. Technical data 6
11. Electrical data 6
12. Electrical connection/device connections 7
13. List of parameters 8
14. Fault alarms/fault clearance 8
15. Type explanations/device labelling 8 - 9
16. Dimension diagram 9
17. Service address 9
EN 3/12

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190
2.2. Display and Control Elements
1.) “S (Set)“ button:
  Accesstotheprogrammingmodeandinputconrmation.
2.) “DOWN“ button :
Pressing this button decreases the level being set.
Holding this button down returns the user to the previous programming level until the
programming mode is exited.
3.) “UP“ button :
Pressing this button increases the level being set.
Rapid interrogation of the setpoint of the limiter alarm, pre-alarm and the actual
level of the sensor.
Holding this button down moves the user on to the next programming level until the
programming mode is exited.
4.) “R (Reset)“ button: reset of saved alarm
5.) “Limiter alarm“ LED: is the signal for a limiter alarm
6.) “Pre-alarm“ LED: is the signal for a pre-alarm
7.) LED’s input prompt: all three LEDs prompt the input of the password.
Two LEDs (ramp) prompt the input of a value alteration
8.) “SP limiter alarm“ LED: signals the display of the setpoint limiter alarm
9.) “SP Pre-alarm“ LED: signals the display of the setpoint pre-alarm.
10.) LED programming: signals access to the programming mode.
11.) 4-digit, blue display: indicates the setpoint limiter alarm.
Display
Set button
DOWN button
UP button
Reset button
Operation LED SP pre-alarm
Greyedout,signalisesashingdisplay
Operation LED Programming
Operation LED
Limiter alarm
Operation LED
Pre-alarm
Display and control elements
Details Display
2. Product Description
2.1. General Points
The 16 A load current circuit of the DTL III Ex is
opened and interlocked as soon as the temperature
of the resistance thermometer exceeds the heating
system’s permissible limit temperature (permissible
upper limit temperature). Once the temperature drops
by at least 5 K under the limit value, the load current
circuit can be closed again by means of the “reset“
button or the remote reset.
In addition, the device has a further temperature alarm
function,whichisconguredasapre-alarm.This
pre-alarm function is neither interlocked nor saved.
The DTL III Ex device family has a service contact,
with which e.g. during the cleaning of pipes with
hot steam, the associated heating cable is switched
off through the load output, and temperature alarms
are blocked.
Signals of the alarms that are not blocked are shown
in the display and given by a group alarm contact.
The devices also have a measuring current circuit
supervision of sensor failure, short circuit, inter-
ruption and undershooting or overshooting of the
measuring range.
The DTL III Ex is microprocessor-controlled and
stores the set data/alarm signals from interlocked
alarms in the event of a power failure. Once supply
voltage is applied, a self-test is run through and the
factory-set limit appears in the display.
The DTL III Ex family is available for the AC/DC 24
V and AC 100 to 240 V voltage ranges.
1. Use in accordance with the
intended purpose
The DTL III Ex digital temperature limiter serves
to monitor the temperature in explosion-proof or
media-safe heating installations and heating circuits.
The DTL III Ex must always be installed outside the
hazardous (potentially explosive) area. When using
it, a distinction must be made between:
a) monitoring of explosion-proof heating circuits:
The DTL III Ex is used together with the
 separatelycertiedPt100Ex(Type27-71..-.3..)
resistance thermometer.
The “controlled design“ methods mentioned in
EN 60079-30-1 must be observed.
b) monitoring of non-explosion-proof heating
circuits:
The DTL III Ex is used together with a
Pt100 M (Item No. 03-9040/00..) media-
protected resistance thermometer.
Operation LED SP limiter alarm
LEDs input prompt
EN 4/12

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DTL III Ex Type 17-8865-4.22/2200 3000 Operating manual
4.2. Installation
The device must be connected in accordance with the wiring diagram with due consideration to
 thecurrent/voltagespecications.Itisessentialtoobservethespecicationsonthetypelabel.
If the resistance thermometer that is connected to the device is brought into Dust Ex areas, it must
be ensured that it has the appropriate approval.
In principle, the resistance thermometer must be mechanically and temperature-stably attached to the
point to be measured in order to ensure reliable thermal coupling. This should be carried out by using
temperature-resistant aluminium adhesive tape or similar materials.
All output circuits connected to the device must be protected by suitable over current protection
devices (e.g. CB).
4.3. Commissioning
The device may only be operated in a clean and undamaged condition. In case of visible damage, the device
must be deactivated and appropriate repair actions initiated.
Commissioning must be carried out in the following steps:
Connect the device to electric power
Set the limiter alarm setpoint and the pre-alarm setpoint that suits the application.
Set the access password for the system parameters (incl. the setpoint for the limiter alarm).
If required, set the password for resetting the limiter alarms
Note: When controlling Ex heating circuits, the access password for the setpoint limit alarm and the
password for resetting limiter alarms must be set, since the setting of the DTL III Ex in accordance with
EN 60079-7 or EN 60079-30-1 must be “secured” and “sealed” for interaction with explosion-protected
heating circuits.
With the DTL III Ex, this is achieved by using separate passwords for
- Resetting limiter alarms
- Setting the set point Limiter alarm
4. Assembly, installation and commissioning3. Safety instructions
Before commissioning, please check the
marking on the DTL III Ex for suitability for
the intended use.
For electrical systems, the relevant installation
and operating regulations as well as other
relevant national regulations must be observed.
The operator of an electrical system in a
hazardous environment must keep the
equipment in good condition, operate and
monitor it properly and do maintenance and
repairs.
All generally valid statutory rules and the other
binding directives on safety at work, accident
prevention and the protection of the
environment must be adhered to.
When using the DTL III Ex to monitor the
temperatures of the heating and heating
circuits in hazardous areas, the following
points must be observed:
- The factory setting of the limiter alarm
setpoint is 190 °C (in Temperature
Class T3). If the application requires another
limit value, this must be set.
- The limiter alarm setpoint setting must be
protected by a password that is accessible
only to authorised people. The factory
setting of the PAS.2 password (“OFF“) must
be altered.
- The resetting of limiter alarms can be
protected by a password, whereby the
factory setting of the PAS.1 password
(“OFF“) must be changed.
- The remote reset use (e.g. by using a
key switch) may only be made possible
to authorised people.
- During commissioning a test of correct
functioning must be conducted in
accordance with EN 60079-30-2.
- The functionality of the DTL III Ex must
be checked in accordance with the
  speciedtestintervalsoftheIndustrial
Safety Regulation.
4.1. Assembly
ThedetailsonthetypelabelandintheECTypeExaminationCerticatemustbeobserved.Thecontroller
isttedintoaDINenclosure with 4 HP (horizontal pitch). The device can be latched onto a mounting rail in
any mounting position in a row.
Inprinciple,itmustbeensuredthatthedeviceisproperlyventilatedtoensurethatthespeciedoperating
temperature limits are not exceeded. Avoid use in areas with additional heat sources so that the permissible
ambient temperature of the limiter is not exceeded.
The device must be installed as far away as possible from sources that could cause strong electromagnetic
interference (e.g. from motors).
Whenconnectingstrandedorne-strandedconductors,theconductorendsmustbeadequatelyprepared.
Assembly instructions for assigning the connection terminals
Conductor Min. Max. Minimum length
cross-section cross-section wire end ferrule
rigid 0.2 mm² 2.5 mm²
with wire end ferrule 0.25 mm² 2.5 mm² 10 mm
2 conductors rigid 0.2 mm² 0.75 mm²
2 conductors with
non-insulated wire end ferrule 0.2 mm² 0.75 mm² 10 mm
2 conductors with
TWIN wire end ferrule 0.5 mm² 1.5 mm² 10 mm
EN 5/12

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2s
190
130
OPEr
>InP
>AL1
AL1
AL1
AL1
190
AL1
130
3s
2s
190
OPEr
>InP
>AL1
>AL2
AL2
AL2
AL2
50
AL2
75
3s
2s
190
OPEr
>InP
>PAn
dISP
PA\1
PA\1
PA\1
OFF
PA\1
456
3s
DTL III Ex Type 17-8865-4.22/2200 3000 Operating manual
5. Basic setting for the system parameters
5.1. General points
If there is no key actuation for approx. 15 seconds in programming mode, the parameter level is quit automatically and the basic display appears.
Warning: The set parameters must be in accordance with any relevant standards. Incorrectly set parameters can lead to over or under temperature control.
5.3. Setting the pre-alarm (AL2)
5.2. Setting the limit value (AL1)
2s
190
130
OPEr
>InP
>AL1
AL1
AL1
AL1
190
AL1
130
3s
auto
auto
Basic Display
Basic Display
2s
190
OPEr
>InP
>AL1
>AL2
AL2
AL2
AL2
50
AL2
75
3s
auto
auto
Basic Display
2s
190
OPEr
>InP
>PAn
dISP
PA\1
PA\1
PA\1
OFF
PA\1
456
3s
5.4. Setting the password for RESET (PAS. 1)
Basic Display
auto
auto
EN 6/12

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2 3
1 1 414 0 0 0 0
2s
190
OPEr
>InP
>PAn
dISP
PA\2
PA\2
PA\2
OFF
PA\2
123
3s
190
0
50
PAL
1
190
LIAL
2
****
SEAL
3
25
?OFF
4
DTL III Ex Type 17-8865-4.22/2200 3000 Operating manual
2 3
1 1 414 0 0 0 0
5.5. Setting the password for system parameters
(incl. limit value) (PAS. 2)
Basic Display
auto
auto
6. Mode of operation of the device
6.1. Temperature limitation, pre-alarm, service entry
Limiter
alarm (AL 1)
Pre-alarm
(AL 2)
Sensor alarm
Actual value
(PV)
Time
Limiter alarm
OFF
(Dig. In 2)
Sensor failure
Pre-alarm
Reset (Dig.In 1) +
Password + Set
OFF
(Load)
OFF
(Alarm)
Display
No.
Displays
190
0
50
PAL
1
190
LIAL
2
****
SEAL
3
25
?OFF
4
Basic display
Example: AL 2 = 100
Example: sensor interruption at terminal 10 or 12
Example: AL 1 = 190
Example: Service entry activated, actual value 25 °C
5 6
5 6
13 17
13 17
20 22
20 22
EN 7/12
2s
190
OPEr
>InP
>PAn
dISP
PA\2
PA\2
PA\2
OFF
PA\2
123
3s

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DTL III Ex Type 17-8865-4.22/2200 3000 Operating manual
9.1 ATEX
Ex protection type
II (2) GD [Ex Gb] IIC/IIIC
Certication
 ECTypeExaminationCerticate
TÜV 08 ATEX 554871
Ambient temperature range
0 °C to +50 °C
9.2. TC RU
Ex protection type
Ex e II U
Certication
RU C-DE.ГБ06.B.00399
6.2. Remote reset
External reset of the limiter. Acknowledgment is only
possible if the temperature is at least 5K below the
limit value.
Remote resetting (e.g. by using a key switch) must
only be possible for authorised persons.
The electrical connection of the external reset device
must be made in accordance with the wiring diagram.
6.3. Service contact
The DTL III Ex contact family has a service contact
(DIG.IN 2), which is used to deactivate the load output
and to block the temperature alarms, e.g. when the
pipes are being cleaned with hot steam. For details
on the mode of action - see Chapter 6.1.
7. Operation, maintenance
The operator of an electrical system for a potentially
explosive environment must keep the equipment in
proper condition, operate it as intended, monitor it
and carry out maintenance and repair work.
Each electrical device must be selected depending
oninaccordancewithitsqualicationforuseina
potentially explosive atmosphere. Before restarting,
the applicable laws and guidelines must be observed.
Before maintenance and/or troubleshooting, the
following safety instructions must be observed.
This instrument does not requires periodical recali-
bration and it have no consumable parts so that no
particular maintenance is required.
Some times, a cleaning action is suggestable.
SWITCH THE EQUIPMENT OFF (power supply,
relay out, ...). Repairs may only be carried out by the
manufacturer.
8. Measuring current circuit - monitoring
Temperature sensors are connected to the device
and monitored for the following faults:
short circuit in the sensor
interruption in the sensor
interruption in the sensor’s compensating
cable
upper and lower deviation from the
measuring range by the sensor
If one of these faults occurs, the load current circuit
is opened and interlocked.
(See Chapter 6.1)
10. Technical data
Basic function
Limitation function
Limiter hysteresis
min. 5 K (settable)
Fault indicating hysteresis
1 K (settable)
Display
1-line, blue display
(h = 12 mm, 4 digit);
red and green status LEDs
Measuring and display accuracy
0.5 %
Operation temperature range
0 °C to +50 °C
Storage temperature
-10 °C to +60 °C
Relative humidity
20 to 85 %
Enclosure
Plastic
Connection terminals
Terminal screws; max. 2.5 mm²
(see also Assembly Chapter)
Dimensions (width x height x depth)
70 mm x 84 mm x 60 mm
Installation dimensions
DIN rail 4HP (45 x 70 mm)
Mounting position
any position, on a TS35 bearing rail
(TH35 in accordance with DIN EN 60715)
Protection type
IP 40 (Front plate)
IP 20 (Terminals)
Weight
230 g
9. Explosion protection
11. Electrical data
Power supply
Type 17-8865-4722/220030..
AC 100 to 240 V +/-10 %
Type 17-8865-4C22/220030..
AC/DC 24 V +/-10 %
Frequency
50/60 Hz
Digital inputs
- Remote reset (RESET)
- Service contact (OFF)
Floating contacts, key switchs required
Contact loadability at least 5 V, 5 mA)
Load output (Output 1)
Relay (normally open contact) AC 250 V,
16 A, cos ϕ= 1
Alarm output (Output 2)
Relay (changeover contact) AC 250 V,
8 A, cos ϕ= 1
Power consumption
max. 4 VA
Measuring current circuit
Umax = 5 V, Imax = 0.15 mA
EN 8/12
12. Standards
See EU Declaration of Conformity

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-F2-F1
L
PE
N
-N1
-B1
Pt100
17-8865-4*22303000
17
Pt100
OUT 1
(Alarm)
11 1210
(Load)
13
DTL III Ex
OUT 2
35614
SUPPLY
DIG
IN 2
A
B
S1= Reset
S2, S3=Service an
Rohrleitung
(z.B. Dampfspülung)
Service at
pipe (e.g. steam
cleaning process)
-E1
-F3
13
23
-N2
-B2
14
24 -S3
-S2
Pt100
OUT 3
SSR (Crtl)
18
17-8821-4*2222303000
17
Pt100
IN 1
OUT 1
(Alarm)
11 191210
(Load)
13
DPC III Standard
TC/mV
OUT 2
DIG
IN 2
35614
SUPPLY
DIG
13
14
-S1 1-X2 32
2224 20
Messwarte
control station
1-X1 32
2224 20
Messwarte
control station
DIG
IN 1
OFF
Reset
+-
DTL III Ex Type 17-8865-4.22/2200 3000 Operating manual
The wiring diagram shows the connection of the DTL III Ex in conjunction with the DPC III temperature controller to monitor a heating circuit
Power supply A-B see type label
EN 9/12
13. Electrical connection/device connections
Terminals 1, 3 Mains connection
Terminals 4, 6 RESET digital input (remote reset)
Terminals 5, 6 OFF digital input (service entry)
Terminals 10, 11 12 Sensor connection for Pt100 Resistance thermometer
(in TWO- or THREE-wire versions):
To monitor explosion-proof heating circuits with the BARTEC Pt100 Ex
(Type 27-71..-.3.. ...) resistance thermometer
To monitor non-explosion-proof heating circuits with the BARTEC
Pt100 M resistance thermometer (art. no. 03-9040/00..).
Note: if the Pt100 two-wire version is used, terminals 2 and 3
must be jumped (The sensor will fail otherwise). No cable length
compensation for two-wire applications
Terminals 13, 17 Floating contacts normally open contact Out1 (load output)
Terminals 20, 22, 24 Floating contacts changeover contact Out2 (group fault alarm)

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auto
190
LIAL
50
PAL
auto
auto
****
SEAL
auto
uuuu
SEAL
NO CNO
C
13 1916
14 15 17 18 21
20 22 24 23
NC
OUT 1
(Load) Out2
(Alarm)
Please observe
operating manual
OUT1: AC 250 V, 16 A, cos =1f
OUT2: AC 250 V, 8A, cos =1f
DTL III Ex Type 17-8865-4.22/2200 3000 Operating manual
15. Fault alarms/fault clearance
Fault indication in the display Description Procedure for fault clearance
14. List of parameters
50
PAL
auto
LIAL =LImiter ALarm
Limiter temperature AL1 exceeded (load relay OUT
1 opens and interlocks, group alarm relay OUT 2
activated).
PAL = Pre-ALarm
Pre-alarm AL2 exceeded
(Load relay OUT 1 remains closed, group alarm
relay OUT 2 activated).
SEAL = SEnsor ALarm
Sensor interruption (at terminal 10 or 12)
SEAL = SEnsor ALarm
Sensor Interruption (at terminal 11)
or measurement reading below sensor limit
SEAL = SEnsor ALarm
Measurement reading above sensor limit
Check heating circuit, eliminate the cause of the malfunctioning,
reset fault signal. Once the sensor temperature drops by at least 5
K under the limit value, unlocking can be initiated by the “reset“
button.
Check the heating circuit and remove the cause of the
malfunctioning. The fault signal is automatically reset after the
elimination of the cause.
Check and if necessary replace the sensor. Reset the fault signal
by pressing the “reset“ button.
Check and if necessary replace the sensor. Check the
measurement reading. Reset the fault signal by pressing the
“reset“ button.
Check and if necessa vry replace the sensor. Check the
measurement reading. Reset the fault signal by pressing the
“reset“ button.
16. Type explanation/device labelling
Type 17-8865-4722/22003000 Description DTL III Ex; AC 100 to 240 V
Terminal plate top Type label
Terminal plate bottom
ϕ
ϕ
Display Parameter Display Parameter Description Values-/ Factory Setting
name group setting range setting
AL1 AL1 Limit temperature (Load output) -1999 up to +9999 °C 190 °C
AL2 AL2 Setpoint Pre-alarm (alarm output) -1999 up to +9999 °C 50 °C
PA\1 PAn Password for reset OFF/1 up to 9999 OFF
PA\2 PAn Password for system parameters OFF/1 up to 9999 OFF
EN 10/12

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NO CNO
C
13 1916
14 15 17 18 21
20 22 24 23
NC
OUT 1
(Load) Out2
(Alarm)
Please observe
operating manual
OUT1: AC 250 V, 16 A, cos =1f
OUT2: AC 250 V, 8A, cos =1f
DTL III Ex Type 17-8865-4.22/2200 3000 Operating manual
19. Service address
BARTEC GmbH
Max-Eyth-Straße 16
97980 Bad Mergentheim
Germany
Tel.: [phone]
Fax: [phone]
[email protected]
www.bartec-group.com
Typ 17-8865-4C22/22003000 Description DTL III Ex 24; AC/DC 24 V
Terminal plate top Type label
Terminal plate bottom
17. Dimensions
ϕ
ϕ
ϕ
ϕ
EN 11/12
18. Disposal
The appliance (or the product) must be disposed of
separately in compliance with the local standards
in force on waste disposal.

11-8865-7D0001_A-03/2019-288307
Tel.: [phone]
Fax: [phone]
Max-Eyth-Str. 16
97980 Bad Mergentheim
[email protected]
www.bartec.de
BARTEC GmbH
Germany