Tecfluid CP CH420 Series Скачать руководство пользователя страница 13

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11.1.2 Connecting conductive parts to earth

When the instrument is not grounded securely through the connection process, it should be
grounded through the housing screw, as shown in the ﬁgure.

Earthing screw

11.1.3 Maintenance

NOTE: Before any maintenance that involves opening the flameproof enclosure, make sure
there is no voltage in any of internal components.

There is no special maintenance for the ATEX version.

11.1.4 Technical characteristics of the ATEX version

They are the same as in the section 9.

Содержание CP CH420 Series

Страница 1: ...R MI CH420 Rev 1 english version Series CP CP CH420 converters Instructions manual The art of measuring...

Страница 2: ...nd safety with no obligation to update this manual Make sure this manual goes to the end user Keep this manual in a place where you can nd it when you need it In case of loss ask for a new manual or d...

Страница 3: ...ALCULATIONS 9 7 HART COMMUNICATION 9 8 KEYBOARD LOCK AND WRITE PROTECT 10 9 TECHNICAL CHARACTERISTICS 10 9 1 Input characteristics 11 9 1 1 COVOL input characteristics 11 9 1 2 TM input characteristic...

Страница 4: ...the instrument will stay watertight The cable gland is for cables with outside diameters between 3 5 and 7 mm To connect the cables peel the outer insulation to free the inner cables It is recommende...

Страница 5: ...CP CH420L sensor connections are the following Terminal n COVOL TM 1 Common Ground 2 Live Live 3 Live For the CP CH420R the connection is made directly from the instrument to the terminals 1 and 2 re...

Страница 6: ...actor given on the label of the COVOL or TM To do this pressing the push button marked with the arrow pointing upwards the blinking digit will increase When it reaches nine it goes back to zero With t...

Страница 7: ...ond m3 cubic meters m minute ga US gallons h hour Totalized volume There are 3 possible volume units l litres m3 cubic meters ga gallons Note 1ga 3 785 litres With the working units chosen by pressing...

Страница 8: ...e lost The screen will return to the normal working model and the word PROG will light on the screen indicating this event To remove the word PROG from the display press any of the two PROG push butto...

Страница 9: ...onverter which speci es a k factor 1 985 and when we check the volume of a batch we nd that instead of having 100 litres as programmed we only have 95 litres 5 less we must apply the following correct...

Страница 10: ...g any changes in the con guration 9 TECHNICAL CHARACTERISTICS Power supply 2 wires by means of the loop current The instrument has a protection diode to avoid damage if the power supply is connected w...

Страница 11: ...is with the switching points situated at about 1 V 2 1 V If an open collector transistor is to be used as the switching element instead of a COVOL then the aforementioned parameters must be taken into...

Страница 12: ...of production with the standards on the territory of the Customs Union particularly regarding safety requirements and electromagnetic compatibility 11 ADDITIONAL INSTRUCTIONS FOR THE ATEX VERSION Thi...

Страница 13: ...the housing screw as shown in the gure Earthing screw 11 1 3 Maintenance NOTE Before any maintenance that involves opening the flameproof enclosure make sure there is no voltage in any of internal co...

Страница 14: ...14 12 DIMENSIONS All dimensions in mm...

Страница 15: ...15 All dimensions in mm...

Страница 16: ...bstances The devices sent for repair must enclose the corresponding form which can be lled in via website from the same After Sales section Warranty for repaired or replaced components applies 6 month...