Ecom Instruments | Ex-Pt 720 | Operating instructions | Ecom Instruments Ex-Pt 720 Operating instructions

ecom instruments GmbH
Industriestr. 2
D-97959 Assamstadt
Tel.: + 49 (0) 62 94 / 42 24 0
Fax: + 49 (0) 62 94 / 42 24 90
E-Mail: sales@ecom-ex.com
Internet: www.ecom-ex.com
2800 AL 01 A00 02/03 Änderungen vorbehalten
Operating Instructions
Ex-Pt 720
Contents
1. Application
18
2. Safety references
18
3. Malfunctioning and inadmissible operation
18
4. Safety regulations
19
4.1 Special conditions for use in Zone 0
16
19
5. Ex-Data
20
6. Technical Details
20
7. Operating instructions
21
7.1 Commisioning
22
7.2 Switching-on and measurement
22
7.2.1 Switching-on
22
7.2.2 HOLD-Function
22
7.2.3 Auto-Off-Function
22
7.2.4 Changing measuring range
22
7.2.5 Switching-off
23
7.3 Battery change
23
7.4 Temperature probes
23
7.4.1 Standard probes
23
7.4.2 Special probes
25
7.4.3 Calibration instructions
26
8. Repair
26
9. Cleaning and maintenance
26
10. Guarantee & liability
27
11. Declaration of EG-Conformity
28
12. EG-Type approval
29
13. Approval Report
33
17
1. Application
The Ex-Pt 720 is a precise, robust and simple to operate temperature measuring device for temperature measurements in explosionendangered areas (excluding firedamp-endangered underground
mining) of Zones 2 and 1 according to IEC/CENELEC and Zone 2,
1 and 0 according to NEC (FM-Marking).
2. Safety references
This operating manual contains information and safety recommendations which must be complied with in order to guarantee safe
functioning of the unit under the conditions described
Please read these operating instructions very carefully before using
the unit !
In case of doubt (for example due to mistakes in the translation)
the German operating instructions are assumed to be valid.
3. Malfunctioning and inadmissible operation
As soon as one suspects that the safety of the equipment is endangered, it must be taken out of service and immediately removed
from the Ex-area. Precautions must be taken to prevent its unintentional reuse.
We recommend that the unit be returned to the manufacturer for
checking.
For example, the safety of the unit could be endangered when:
- damage to the housing is visible.
- the unit was subjected to improper strain.
- the unit was incorrectly stored.
- the unit was damaged in transit.
- the lettering on the unit is unreadable.
- malfunctioning occurs.
- obviously incorrect measurements occur.
- measurements with the unit are no longer possible.
- the permissible limiting values were exceed.
18
4. Safety regulations
In order to exclude incorrect operation of the unit, its use assumes
that the user is aware of and complies with the usual safety regulations.
- The batteries may only be changed outside the Ex-area.
- It is not allowed to take additional batteries into the Ex-area.
- Only type approved batteries may be used.
- Only sensors which have been approved by ecom may be used.
- It must be ensured that the unit is not taken into Zone 0.
- Measurements on electrically live parts are not allowed.
- Observe the measuring range of the temperature sensors.
Overheating will damage the sensors.
- Avoid use in aggressive acids or alkalis.
- The unit may not be opened in Ex-areas.
4.1 Special conditions for use in Zone 0
The measurement of temperatures with the Ex-Pt 720 within
Zone 0 is only permitted if the following conditions are complied
with:
- A stainless-steel sensor Type 0628 2232 or 0628 2432 is used.
- The Ex-Pt 720 itself may not be taken into Zone 0.
- It must be absolutely ensured that the unit does not find its way
aaccidentally into Zone 0. In order to guarantee this, the carrying
sstrap of the unit must be attached additionally to the belt of the
uuser or to a loop attached to his belt. The length of the carrying
sstrap must be so adjusted that when the unit hangs freely on the
ccarrying strap, the Ex-Pt 720 maintains a spacing of 50cm to the
bboundary area of Zone 0.
- Should the unit be used in the optionally available leather case,
t˝the carrying strap of the unit must still comply with the condititions for attachment to the user’s body.
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5. Ex-Data
EC-test approval-no.: TÜV 01 ATEX 1757 X
Ex-designation:
II 2(1) G EEx ia IIC T4
Approved for Zone 1, equipment group II, gas group C explosionsendangered gases, vapours or fog, temperature class T4.
Only the sensors specified in the approval certificate may be used.
Sensor no. 0628 2232 and 0628 2432 may be used in Zone 0 !
Report Job Identification No:
FM Marking :
3015067
I.S. Class I Div.1 A - D T4
Class I Zone 0 AEx ia IIC T4
Approved for Zone 0, equipment group II, gas group C,
Temperature class T4
6. Technical Details
Ambient temperature Ta:
Storage temperature:
Batteries:
approx. 100h
190 x 57 x 42 mm
approx. 200g (with batteries)
ABS
(slight discolouration due to additives)
IP-protective rating: IP 54
0102
EC-designation:
Display:
LCD, digit height 14mm
Measuring device: Pt 100-Sensor, 4-wire-technique
Measuring range: -50°C to +400°C
Accuracy:
-50°C to +199,9°C:
+200°C to +400°C:
±0,2°C, ±1 digit
±0,2% from measured
value, ±1 digit
Resolution:
-50°C to +199,9°C:
+200°C to +400°C:
0,1°C
1°C
System accuracy:
-50°C to +99,9°C:
±0,6°C, ±1 digit
(with immersion/
insertion sensor)
+100°C to +400°C:
±0,5% from measured
value, ±1 digit
-10 ... +50°C
-20 ... +70°C
7. Operating instructions
9V-Block, 6LR61 as per IEC
(only type tested batteries)
HOLD-button
Supplier
Varta
Varta
Varta
Duracell
Duracell
Duracell
Everady
(Ralston Energy Systems SA)
Panasonic
Daimon
20
Operating life:
Dimensions:
Weight:
Case material:
Type
Alkaline No.4822
Alkaline Universal No.4022
Alkaline Electric Power No.8022
Alkaline
Alkaline Ultra
Professional Alkaline Battery Procell
Alkaline Energizer
Alkaline Power Line Industrial Battery
Alkaline
Sensor connection
I/O button
Safety loop for
use on Zone 0
reverse side:
safety screw
21
7.1 Commissioning
- carefully read operating instructions.
- open back of unit with key.
- insert battery correctly (observe polarity).
- insert battery safety cover.
- close unit with safety screw.
7.2 Switching-on and measuring
7.2.1 Switching-on
Insert sensor into measuring socket (take note of plug coding).
Switch unit on with >I/O pushbutton<.
After switching on, a short display and function test will take place.
The measuring instrument is now ready for use.
7.2.2 Hold-Function
The measured values can be retained in the display with the
>Hold< pushbutton
7.2.3 Auto-Off-Function
The Auto-Off-Function switches the unit off after 10 minutes operating time thus avoiding unintentional discharge of the battery.
7.2.4 Changing measuring range
The display can be switched between °C and °F.
While switching the unit on with the >I/O pushbutton< press
>HOLD-pushbutton< and hold it.
After the self test is finished, the currently selected max. measuring
value will blink.
°C
7.2.5 Switching-off
Switch the unit of with the >I/O pushbutton< . The display is no longer active.
7.3 Battery change
Should the <BAT> symbol be displayed constantly, then the battery will need to be changed within the next 1-2 hours. The unit
switches itself automatically off should the battery voltage be too
low.
Open the back of the unit by unscrewing it, remove the exhausted
battery and insert a new one (observe polarity).
- while changing the battery, the cover may not be separated from
t˝the unit top shell.
- only batteries of Type 6LR61 as per IEC may be used. The use of
aalternative types of batteries is strictly forbidden.
- batteries may only be changed outside the Ex-area.
- the taking of additional batteries into the Ex-area is not allowed.
7.4 Temperature probes
7.4.1 Standard probes
Immersion / insertion probe
0628 1232:
measurement range:-50 ... 400°C
accuracy:
class A
Ex-Zones:
2, 1
probe dimensions: 110mm x 4mm (w x ø)
sensor dimensions: 30mm x 3,2mm (w x ø)
response time (99%): 12 Sec.
Pressing the >Hold-pushbutton< switches between °C and °F.
Should no pushbutton be pressed for 5 seconds after a changeover, then the new measuring value will be accepted.
22
23
Surface probe
0628 1932:
7.4.2 Special probes
measurement range:-50 ... 400°C
accuracy:
class B
Ex-Zones:
2, 1
probe dimensions: 110mm x 4mm (w x ø)
sensor dimensions: 3,2mm (ø)
response time (99%):40 Sec.
Stainless-steel probe
0628 2232:
measurement range:-50 ... 400°C
accuracy:
class A
Ex-Zones:
2, 1, 0
probe dimensions: 125mm x 4mm (w x ø)
sensor dimensions: 15 x 3mm (w x ø)
response time (99%):10 Sec
Drone Tankprobe
0628 2432:
24
measurement range:-50 ... 400°C
accuracy:
class A
Ex-Zones:
2, 1, 0
probe dimensions: 235mm x 25mm (w x ø)
wight:
400g (without cable)
response time (99%):10 Sec
cable:
25 m
Immersion / insertion probe
0600 9999
measurement range:-50 ... 400°C
0628 1232:
accuracy:
class A
Ex-Zones:
2, 1
probe dimensions: >50mm x >4mm (w x ø)
sensor dimensions: >30mm x >3,2mm (w x ø)
response time (99%):12 Sec.
Surface probe
0600 9999
0628 1932:
measurement range:-50 ... 400°C
accuracy:
class B
Ex-Zones:
2, 1
probe dimensions: >50 mm x >4mm (w x ø)
sensor dimensions: >9 mm (ø)
response time (99%):40 Sec.
Stainless-steel insertion probe
0600 9999
measurement range:-50 ... 400°C
0628 2232:
accuracy:
class A
Ex-Zones:
2, 1, 0
probe dimensions: >50mm x >4mm (w x ø)
sensor dimensions: >15 x >3mm (w x ø)
response time (99%):10 Sec.
Drone Tankprobe
0600 9999
0628 2432:
measurement range:-50 ... 400°C
accuracy:
class A
Ex-Zones:
2, 1, 0
probe dimensions: 235mm x 25mm (w x ø)
wight:
400g (without cable)
response time (99%):10 Sec
cable:
1 ... 50 m
25
7.4.3 Calibration instructions
The plastic handle withstands a temperature of approx. 200°C for a
short time. A long-term maximum of 90°C is recommended.
Please take this into account when calibrating the system or individual components.
8. Repair
Should repairs be necessary, then the conditions of ELEX V must
be complied with. We recommend that repairs be carried out in the
manufacturer’s factory as it is necessary for the unit to be
checked for technical and safety reasons.
9. Cleaning and maintenance
The unit should only be cleaned with a moist cloth or sponge.
Detergents or abrasive materials should not be used.
We recommend that the function and accuracy of the unit be
checked every two years by the manufacturer.
10. Guarantee & liability
For this product, ecom Instruments GmbH guarantees the function
and material for a period of two years under normal operating and
maintenance conditions.
The guarantee does not apply to products which are improperly
used, modified, neglected, damaged in accidents or exposed to
abnormal operating conditions.
Claims under the guarantee can be made by returning the defective equipment to the factory. We reserve the right to repair, renew
the settings or exchange the device.
The above-mentioned guarantee conditions are the sole and only
right of the purchaser to compensation, are exclusively valid and
replace all other contract or legal warranty obligations. ecom
Instruments GmbH accepts no responsibility for special, direct, indirect, accompanying or consequential damage as well as losses
including the loss of data which may arise through the use or
acquisition of the equipment independent of whether it was caused
by violation of the warranty obligation, lawful or unlawful action,
action in good faith or any other action.
If in certain countries the limitation of a legal guarantee as well as
the exclusion or limitation of accompanying or consequential damage is not permissible, it may be that the above-mentioned limitations and exclusions are not valid for every purchaser. Should any
such clauses of these guarantee terms be declared null and void or
not realisable by a competent court, then the effectiveness or
enforceability of any of the other conditions of these guarantee
terms will be unaffected by the court decision.
26
27
11. Declaration of EC-Conformity
12. EG type approval
TÜV CERT
We ecom Instruments GmbH, Industriestraße 2
D-97959 Assamstadt
declare under our sole responsibility that the product
Ex-Pt 720
to which this declaration relates is in accordance with the provision
of the following directives
94/9/EC
89/336/EEC
Equipment and protective systems in
explosionendangered areas
Electromagnetic compatibility
and is in conformity with the following standards or other normative
documents
EN 50014:1997
EN 50020:1994
EN 61326-1:1997
Electrical equipment for explosionendangered areas
Electrical equipment for explosionendangered areas
Intrinsic safety "i"
Electromagnetic compatibility (small business).
The equipment was tested for electromagnetic
compatibility in the frequency range of
60-1000 mHz. The specified tolerances could
not be complied with in the frequency band
280-300 mHz.
ecom instruments GmbH
EC – Type approval test certificate
(1)
(2)
Equipment and protective systems for use according to certain regulations in
explosion-endangered areas – Guideline 94/9/EC
(3)
EG Type approval test certificate number
TÜV 01 ATEX 1757 X
(4)
Equipment:
Explosion-protected temperature measuring unit Type Ex-Pt 720*
(5)
Manufacturer:
ecom instruments GmbH
(6)
Address:
D-97959 Assamstadt, Industriestrasse 2
(7)
The type of design as well as the various permissible versions are specified in the appen
dix to this type approval test certificate.
(8)
The TÜV Hannover/Sachsen-Anhalt e.V., TÜV CERT-certification authority, hereby con
firms, as recognized authority no. 0032 according to Article 9 of the Guidelines of the
Council of the European Union dated March 23rd, 1994 (94/9/EG), the fulfilment of the
fundamental safety and health requirements for the conception and design of equipment
and protective systems according to certain regulations in explosion-endangered areas in
line with Appendix ll of the guidelines.
The test results are recorded in the confidential test report No. 01 YEX 137383.
(9)
The fundamental safety and health requirements are fulfilled on account of compatibility with
EN 50014:1997
(10)
EN 50020:1994
Should the letter "X” appear at the end of the certification number, attention is drawn to
special conditions for the safe use of the equipment which can be found in the appendix.
(11)
This EG type approval test certificate only refers to the conception and testing of certain
equipment in line with Guideline 94/9/EG. The additional requirements of this guideline
which are valid for the manufacture and commissioning of this equipment are not covered
by this certificate.
(12)
The designation of the equipment must contain the following details:
ll 2 (1) G EEx ia llC T4
Assamstadt, 28.05.02
TÜV Hannover/Sachsen-Anhalt e.V
TÜV CERT-certification authority
Am TÜV 1
D-30519 Hannover
Hannover, 19.02.2002
The person in charge
This EG type approval test certification may only be distributed in unchanged form.
Extracts or changes need the approval of the TÜV Hannover/Sachsen-Anhalt e.V
28
29
(13)
Appendix
(14)
EC – Type approval test certificate No. TÜV 01 ATEX 1757 X
(15)
Description of the equipment
1st Supplement
to
EC – Type approval test certificate No. TÜV 01 ATEX 1757
The company:
The explosion-protected temperature measurement unit Type Ex-Pt 720* may be used in
explosion-endangered areas which require category 2 or 3 respectively. The sensors
which are specially mentioned in the operating instructions may be used for the measure
ment of temperatures in category 1.
ecom instruments GmbH
Industriestrasse 2
D-97959 Assamstadt
In the future, the explosion-protected temperature measuring instrument Type Ex-Pt 720*
may be manufactured in accordance with the documentation listed in the test report. The
changes are concerned with the external design and the use of further sensors.
The permissible ambient temperature is dependent on the type as shown in the following
table:
The permissible ambient temperature range is 0°C to +50°C.
Electrical data
Power supply
(internal battery)
Type
Ex-Pt 720 L
Ex-Pt 720
one block battery as per IEC 6LR61 or 6F22
U = 9V
Only batteries which have satisfied the type–testing in accordance with section 10.9 of
EN 50020:1994 are allowed to be used. The manufacturers and their type numbers are
listed in the operating instructions.
(16)
Test documentation is listed in test report No. YEX 137383.
(17)
Special conditions
The temperature measuring unit Type Ex-Pt 720* may not be opened within the explosionendangered area.
The electrical data are valid without change for this supplement.
(16)
Test documentation is listed in test report No. 02 YEX 164755.
(17)
Special conditions
The temperature measuring unit Type Ex-Pt 720* may not be opened within the explosionendangered area. The version with the type designation EX-Pt 720L may only be used
within explosion-endangered areas when it is enclose in the leather case which is supp
lied with it.
The version with the type designation EX-Pt 720L may only be used within explosionendangered areas when it is enclose in the leather case which is supplied with it.
In addition, the following applies to the measurement of temperatures within
category 1:
The temperature measuring unit Type Ex-Pt 720* itself may not be taken into areas which
require category 1 operating equipment. Only the sensors listed in the operating instruc
tions as being suitable for category 1 may be used.
The carrying strap of the unit is to be attached to a loop on the user’s belt in such a way
that when the unit hangs freely on the strap it always maintains a spacing of > 50 cm from
the boundary of the area which requires category 1. Only the manufacturer’s carrying
strap may be used.
(18)
Permissible ambient temperature range
0°C to +50°C
-10°C to +50°C
In addition, the following applies to the measurement of temperatures within explosionendangered areas which need category 1 equipment:
The temperature measuring unit Type Ex-Pt 720* itself may not be taken into areas which
require category 1 equipment. Only the sensors listed in the operating instructions as
being suitable for category 1 may be used.
The carrying strap of the unit is to be attached to a loop on the user’s belt in such a way
that when the unit hangs freely on the strap it always maintains a spacing of > 50 cm from
the boundary of the area which requires category 1. Only the manufacturer’s carrying
strap may be used.
(18)
Fundamental safety and health requirements
No additional ones.
Fundamental safety and health requirements
No additional ones.
30
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2. S U P P L E M E N T
to
EC-Type-Examination Certificate No. TÜV 01 ATEX 1757 X
(translation)
of the company: ecom instruments GmbH
Industriestrasse 2
97959 Assamstadt
Germany
The explosion-proof temperature measuring device of type EX-Pt 720* has been approved for manufacture according to the documents listed in the test/examination report. The
changes refer to the outer structure and the use of an additional sensor.
The electrical data and the special conditions shall continue to be valid for this supplement.
The test documents are listed in test protocol No. 03 YEX 550274.
TÜV NORD CERT GmbH & Co. KG
Hannover, 07 Jan. 2003
TÜV CERT-Zertifizierungsstelle
Am TÜV 1
D-30519 Hannover
Germany
Phone: +49 (0) 511 986-1470
Fax:
+49 (0) 511 986-2555
Signature:
The Chief Officer
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Bedienungsanleitung
Operating Instructions
Notice d’utilisation
Gebruiksaanwijzing
Istruzioni per l'uso
Instrucciones de uso
Manual de instruções
ecom instruments GmbH
Industriestr. 2
D-97959 Assamstadt
Tel.: + 49 (0) 62 94 / 42 24 0
Fax: + 49 (0) 62 94 / 42 24 90
E-Mail: sales@ecom-ex.com
Internet: www.ecom-ex.com
2800 AL 01 A00 02/03 Änderungen vorbehalten
Bruksanvisning
Ex-Pt 720
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