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.
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. 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.
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.
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.
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 ...
.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.
11. Declaration of EC-Conformity 12.
(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.
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.
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.
