Randell BC-5 Manual do Operador descarregar pdf (Página 11)

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Unit Operation

The Randell BC series blast chillers are designed for rapid chilling through the

danger zone down to 40 or below in approximately 90 minutes. The exact chill time

will vary depending on product type.

The door must be in closed position to activate switch at top of door before any

cooling cycle will begin.

1. Introduction

The control software for the BC Control Unit is based on a “Real-Time

Operating System and is capable of simultaneously running a chiller operation

while at the same time accepting/displaying user information from the control

panel such as chiller preset adjustments. This document provides an overview

of the current controller features.

2. Status LED Indicator Conventions

a. Safe/Temp LED indicators (Probes 1 through 4, and Air)

i. Flashing – Indicated probe currently displayed and used for set point

control

or a temperature alarm indication.

ii. Solid – Indicated probe has reached the “Safe” set point or purposely

selected

for display monitoring.

iii. Solid Momentary – Indicated probe’s temperature currently

displayed.

b. Mode LED Indicators

i. Solid – Identifies the selected mode that will be run if the Start/Stop

Key is

depressed.

ii. Flashing – The indicated mode is in operation.

3. Powering Up Unit

a. The unit once connected to AC power will turn on for a short period.

An LED illumination test will be performed, followed by the display of

the software version number. The unit will then blank the display and

go into a standby mode. The unit will remain in a standby until the

On/Off key is depressed.

b. Depressing the On/Off key will cause the unit to become active and

enter the Idle mode. Refer to Idle Mode operation below.

4. Powering Down Unit

a. The unit may be returned to the low power standby state by

depressing the On/Off

key. The display will then go blank while powered down. The unit may

be restarted

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Randell BC-5 Manual do Operador Página 11