Ecom Instruments Ex-Pt 720 instruction manual 1st Supplement

(13) Appendix

(14)EC – Type approval test certificate No. TÜV 01 ATEX 1757 X

(15)Description of the equipment

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.

The permissible ambient temperature range is 0°C to +50°C.

Electrical data
Power supply	one block battery as per IEC 6LR61 or 6F22
(internal battery)	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 explosion- endangered 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 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)Fundamental safety and health requirements No additional ones.

1st Supplement

to

EC – Type approval test certificate No. TÜV 01 ATEX 1757

The company:	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:

Type	Permissible ambient temperature range
Ex-Pt 720 L	0°C to +50°C
Ex-Pt 720	-10°C to +50°C

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 explosion- endangered 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.

In addition, the following applies to the measurement of temperatures within explosion- endangered 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.

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