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Table of Contents
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Summary of Contents for Ecom Instruments Ex-PT 720
- Page 1 Ex-PT 720 Operating Instructions...
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Page 2: Table Of Contents
Content Application ....................16 Safety references ..................16 Malfunctioning and inadmissible operation ........16 Safety regulations ..................17 4.1 Special conditions for use in Zone 0 ......... 18 Ex-Data ......................18 Technical Details ..................19 Operating instructions ................20 7.1 Commissioning .................. 20 7.2 Switching-on and measuring ............ -
Page 3: Application
1. Application The Ex-Pt 720 is a precise, robust and simple to operate temperature measuring device for temperature measurements in explosion- endangered areas of Zones 2 and 1 in accordance with Directive 1999/92/EC (ATEX) and Zone 2, 1 and 0 according to NEC (FM-Marking). -
Page 4: Safety Regulations
4. Safety regulations Use of this unit assumes that the operator observes conventional safety regulations and has read the certificate in order to eliminate faulty operati- on of the unit. The following additional safety regulations must also be observed: - The unit may not be opened in Ex-areas. - The batteries may only be changed outside the Ex-area. -
Page 5: Special Conditions For Use In Zone 0
BG regulation BGR 132 (BG = Employer‘s Liability Insurance Association). - 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 accidentally into Zone 0. -
Page 6: Technical Details
safe for Class I Zone 0 Group IIC hazardous (classfied) locations temperature class T4 at a 50°C ambient. 6. Technical Details Ambient temperature Ta: -10 ... +50°C Storage temperature: -20 ... +70°C Batteries: 9V-Block, 6LR61 as per IEC (only type tested batteries) Table with type-tested batteries: Type Manufacturer... -
Page 7: Operating Instructions
Please also note the maximum working temperature of the unit -10 ... +50°C: Accuracy: -50°C to +199,9°C: ±0,2°C, ±1 digit +200°C to +400°C: ±0,2% from measured value, ±1 digit Resolution: -50°C to +199,9°C: 0,1°C +200°C to +400°C: 1°C System accuracy: -50°C to +99,9°C: ±0,6°C, ±1 digit +100°C to +400°C: ±0,5% from measured (with immersion/insertion sensor) -
Page 8: Switching-On And Measuring
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<... -
Page 9: Battery Change
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). -
Page 10: Special Probes
Stainless-steel probe 0628 2232: 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: accuracy: class A Ex-Zones: 2, 1, 0 probe dimensions: 235mm x 25mm (w x ø) -
Page 11: Calibration Instructions
Please take this into account when calibrating the system or individual components. 8. Repair Repairs are to be conducted by ecom instruments GmbH or by personnel or service centres authorised by ecom instruments GmbH, because the safety of the unit needs to be tested after repairs are implemented. -
Page 12: Disposal
EC Directive 2002/96/EC and the German Electrical and Electronic Equipment law of 16/03/2005. The costs of the transport of the equipment to ecom instruments GmbH are borne by the sender. In accordance with “Directive 2006/66/EC on batteries and accumulators and waste batteries”... -
Page 13: Guarantee & Liability
11. Guarantee & liability Under the general terms and conditions of business, ecom instruments GmbH offers a 2-year warranty for function and materials on this product under the specified operating and maintenance conditions. Not covered are all wearing parts (such as batteries and lamps). - Page 14 GmbH prior written consent. The contents of this document are presented as they currently exist. ecom instruments GmbH does not provide any express or tacit guarantee for the correctness or completeness of the contents of this document, including, but not restricted to, the tacit guarantee of market suitability or fitness for a specific purpose unless applicable laws or court decisions make liability mandatory.