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Iv. control keys and display panel, Iv.1 the °f/°c key, Iv.2 the run/stby key – Brookfield Temperature Controller, Model 75 User Manual

Page 6: Iv.control keys and display panel, Iv.1 the, C key

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Brookfield Engineering Labs., Inc.

Page 6

Manual No. M/98-205-A0100

IV. CONTROL KEYS AND DISPLAY PANEL

The front panel of the unit which includes all user controls and status indicators is shown in
Figure 2:

RUN

HEAT

SET

RUN

STBY

Temperture Controller

°

F

°

C

Figure 2

The digital display is used to set temperature values, to show system status during operation and
to present certain messages to the user.

The allowable range for temperature entries is from 0

°

C to 300.0

°

C (32.0

°

F to 572.0

°

F), with a

minimum increment of 0.1

°

(either scale). If a proposed temperature value is above the maxi-

mum or below the minimum input, an audible sound (beep) will be heard and the current maxi-
mum (or minimum) value will be displayed.

The various buttons and light emitting diodes (LED’s) have the following functions or meanings:

IV.1

°

F

°

C

The

°

F/

°

C Key

This key is used to toggle the units in which temperature is displayed and entered. The rightmost
digit in the main display indicates the units currently being used (F = Fahrenheit; C = Centi-
grade).

IV.2

RUN

STBY

The RUN/STBY Key

The

RUN

STBY

key initiates or stops operation of the Model 75 Controller. To initiate a temperature

setpoint operation, press

RUN

STBY

. The LED labeled “

RUN

will light up to indicate the present status

of the controller. When the Temperature Controller is operating, pressing the

RUN

STBY

key will place

the unit in a standby mode and cease control of the Thermo Container.