Auber Instruments EZboil DSPR320 Buku Petunjuk - Halaman 5

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certain threshold and then let the user to adjust the power output percentage

manually. Steps that have set values in percentage (0% ~ 100%) use power-

control mode and these steps are sometimes referred as boiling steps for

convenience.

For any step in a program, the control mode can be either temperature-control or

power-control. The MASH or BOIL mode doesn't impose any constraint on the

control mode of any step in its program. When entering the set-value for a step,

the user can simply select either a power percentage number or a temperature

value as the set-value.

Please note that "mashing step" or "boiling step" refers to how the power is

controlled for a particular step, while the "mash mode" or "boil mode" refers to

the program mode that is intended to be used for the mash or boil process.

5.6. Set-Value

The set-value of a step can be either a power percentage value (from 0% to 100%)

or a temperature value (from 0 to 932). The percentage numbers and the

temperature values together make up a combined list of available set-values:

0%, 1%,....99%, 100%, (bo) (ma), 0, 1, 2, ... 931, 932.

When editing the set value, the user can rotate the knob to select the desired value.

Turning the knob clockwise will increase the value, and turning the knob counter-

clockwise will decrease the value. When the value changes from percentage to

temperature, the lower window will show "MA" shortly to remind the user the set

value is temperature value for mashing. Conversely, when turning the knob

counter-clockwise and as the value changes from temperature to percentage, the

lower window will show "BO" shortly to remind the user the set value is power

percentage for a boiling step. All temperature values have the letter "M" displayed

on the left side, and all percentage values have the letter "P" will be display on the

left side to indicate these are percentage values. For example, 0% is displayed as

"P 0" and 0 degree is displayed as "m 0".

When the program is running, temperature set-values will NOT have the letter "M"

displayed on the left, but the percentage values do have the letter "P" on the left.

5.7. Step-Timer

The step-timer defines the time duration of a step where the temperature or the

power should be maintained at its set-value. The timer can be set to anywhere

between 0 minute to 99 hours. The time duration is displayed in the format of

HH:MM.

The step-timer setting can also be a special command which tells the controller

how to handle this step instead of counting down time. The special command can

be SKIP, HOLD, END, or CONT. The meaning of a command is explained in the

table below. Please note that "CONT" is not available to the BOIL program mode.

Table 8. Special commands of step-timers.

Command

Description

SKIP

Bypass this step.

HOLD

Hold the program at the current step. Press RUN key to continue to

the next step.

END

End the program.

CONT

End the MASH Program and continue to execute the first step of the

BOIL program. Only available to MASH Program.

When the controller executes a step, it won't start the step-timer or execute the

special command until the probe reading has reached a timer-start-point. For

temperature-control steps (mashing steps), the timer-start-point is determined by

tSP, which defines a two-sided deviation band around the set-value (see Figure

14). For power-control steps (boiling steps), the timer-start-point is determined by

bTSP, which defines an absolute temperature value above which the timer should

start. Once this temperature is reached, the controller will start counting down time

until the time is reached, or execute the special command. Once the timer starts,

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it won't stop nor pause because of the probe temperature drops output of the timer-

start-point. However, the user can manually pause the timer by pressing the HOLD

key, and then resume the timer by pressing the RUN key.

Boiling step

230

210

190

170

150

130

110

Figure 14. The timer-start-point of boiling steps and mashing steps are defined

5.8. End or Stop the Program

When the last step of a program is executed, the program ends and controller will

either show "END" or "STOP". In DSPR320, End and STOP are different status.

STOP means the controller has turned off all outputs, including the main SSR

output as well as both relays. END means the program has come to an end, but

the controller will continue to regulate the temperature or the power per the set-

value of the last step. See Table 9 for a comparison between these two statuses.

Table 9. The differences between END and STOP.

END

Main Output

Yes

Relay Output

Alarms

When a program has come to its end, whether the controller will enter the END or

STOP status depends on the parameter EO (Ending Option for Mash Mode) and

bEO (Ending Option for Boil Mode).

By default, both EO and bEO are set to OFF, which means that once a program

has ended, there will be no output from the controller. The controller will show

current probe reading in the top window and show "STOP" in the bottom window

(Figure 15).

Figure 15. DSPR320's display when a program is stopped. All outputs are turned

If EO and/or bEO is set to ON, the controller will continue to regulate the

temperature if the last step is a temperature-control step, or to regulate power if

the last step is a power-control step. The controller will show the current probe

reading and "END" alternatively in the top bottom window. The bottom window

will show the set-value of the last step in the program (in Figure 16, the set-value

is 80). The OUT indicator will show the output status accordingly.

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bTSP

SV + tSP

Mashing step

SV ‐ tSP

Time (min)

differently.

STOP

7 9

stop

off.

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