Emerson Rosemount 644h Instrukcja Obsługi Pobierz pdf (Strona 43)

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Rosemount Inc

CE Electromagnetic Compatibility Compliance Testing

The Models 644H and 644R meet all requirements listed under IEC 61326:

Amendment 1, 1998.

Self Calibration

The analog-to-digital measurement circuitry automatically self-calibrates for each

temperature update by comparing the dynamic measurement to extremely stable

and accurate internal reference elements.

Electrical Connections

Materials of Construction

The Model 644H installs in a connection head or universal head mounted directly

on a sensor assembly, apart from a sensor assembly using a universal head, or to a

DIN rail using an optional mounting clip. The Model 644R mounts directly to a

wall or to a DIN rail.

Weight

Enclosure Ratings (Model 644H)

Option codes J5 and J6 are NEMA 4X, IP66, and IP68.

Option code J6 is CSA Enclosure Type 4X

Power and Sensor Terminals

Model 644H Compression screws permanently fixed to

terminal block

Clips permanently fixed to

terminal block

Model 644R: Compression screw permanently fixed to

front panel

Clips permanently fixed to front panel

WAGO

spring clamp terminals are optional (option code G5)

Construction Material for the Electronics Housing and Terminal Block

Model 644H

Noryl

glass reinforced

Model 644R:

Lexan

polycarbonate

Code Options Add

(1)

(1) All weights are in grams (ounces).

Model 644H Head Mount 78 (2.75)

M5 LCD Meter 34 (1.20)

J5, J6 Universal Head, Standard Cover 520 (18.43)

J5, J6 Universal Head, Meter Cover 604 (21.27)

Model 644R Rail Mount 173 (6.10)

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