Athena 6000 Instrukcja obsługi - Strona 12

Przeglądaj online lub pobierz pdf Instrukcja obsługi dla Kontroler temperatury Athena 6000. Athena 6000 16 stron. Microprocessor-based temperature controller

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Installation Instructions

Operating Instructions

Control Panel Description

Continuous

Display Of

Process

Variable

Continuous

Display Of

Setpoint Or

Indexed

Parameter

Touch Key Group

Pressing The "I"

Button Advances

The Cursor In The

"Index" Group

variable, the probe should be close to the work area.

Some experimenting with probe location is often

needed to find its optimum position.

In a bath process, the addition of a stirrer will help

to eliminate thermal lags. Since the thermocouple is

basically a point measuring device, putting more than

one thermocouple in parallel will provide an average

temperature reading and produce better results In air

heated processes.

NOTE: if controls

with grounded or hot input terminals (not floating), an

isolated thermocouple must be used. Otherwise, when

both input and output are grounded, severe ground loop

currents will result, causing errors and permanent

controller damage.

Standard thermocouple limits of error are ± 4ºF or

0.75% (half that for special) plus drift caused by

improper protection or over temperature. This is far

greater than controller error, but can not be corrected

at the sensor except by selection and replacement. In

extreme case, total system requirements can be met by

offsetting the control to compensate for these outside

errors.

(lncreases)

Raises

The Selected

Variable

with "F" or "S" outputs drive loads

Lowers

(Decreases) The

Selected Variable

LED To indicate

Output "Status"

Function Selected

Indicated By LED

"Cursor"

Advanced By "I"

Button

Enters The

Selected Value T

Nonvolatile

Memory