Auber Instruments EZboil DSPR120 Instruction Manual

AUBER INSTRUMENTS WWW.AUBERINS.COM

2017.03 P1/9

EZboil, Power Regulator for Boiling Process Automation DSPR120

Version 1.2 (Mar, 2017)

Caution

• This controller is intended to control equipment under normal operating

conditions. Failure or malfunction of the controller may lead to abnormal
operating conditions, which result in personal injury or damage to the
equipment or other property. Devices (limit or safety controls) or systems
(alarm or supervisory) intended to warn of or protect against failure or
malfunction of the controller must be incorporated into and maintained as part
of the control system.

• Installing the rubber gasket supplied will protect the controller front panel from

dust and water splash (IP54 rating). Additional protection is needed for higher
IP rating.

• This controller carries a 90-day warranty. This warranty is limited to the

controller only.

1. Specifications

Input type

RTD (Resistance Temperature Detector): Pt100

Accuracy

± 0.2% full scale

Temperature
range

-328° F ~ +932°F, -200° C ~ +500°C

Response time

≤ 0.5s

Display
resolution

1° C or °F

Control mode

Mashing, Boiling

Alarm function

Process high alarm

Power supply

85~260VAC/50~60Hz

Power
consumption

≤ 5 Watt

Working Ambient
temperature

0~50ºC, 32~122º F

Dimension

48 x 48 x 100 mm (W x H x D, from the front panel to
the back)

Mounting cutout

45 x 45 mm

2. Front Panel

3

4

5

1

2

6

Figure 1. The front panel of EZboil

1). Top display. This display indicates the temperature sensor read out value.
When timer is activated, it will show time and temperature alternately.

2). Bottom display. In boiling mode, this display will show the percentage of
power being sent to the external SSR after the initial heat up phase. In mashing
control mode, this display will show the set temperature.

3). Rotary switch (knob). Turn it clockwise to increase the output power (or
selected parameter value); turn it counter-clockwise to reduce the output power
(or selected parameter value). Press it briefly to reset the timer (if enabled) and
to switch between mashing and boiling mode. Press and hold it for 5 seconds to
enter parameter settings menu. Please see section 6 for details.

4). Output indicator (OUT). This green LED light is synchronized with output. It
shows how much power the regulator is sending out (as a 12VDC control signal
pulse through terminal 6 and 7). When it is on solid, the output is 100% on. When
it is off, there should be no output. When it is flashing, the frequency of the
flashing is an indication of high or low power output. Higher frequency means
higher power output.

5). Mashing mode indicator (MASH). This yellow LED light indicates the
operation mode of the controller. When it is on, controller is in mashing mode;
when it is off, controller is in boiling mode.

6). Temperature setting adjusting indicator. This is the small dot at the lower
right corner. In mashing mode, when temperature set point is adjusted, it will
start to flash. It reminds you that you need to press the knob to confirm the
change. Otherwise, the temperature setting will return back in 2 seconds after
you stop the adjustment.

3. Wiring Terminals

The pin assignment of the back terminals of DSPR120 is shown in Figure 2.

1

2

3

13 14 6

7

8

9

10

4

5

AC

85~260V

SSR

+

-

RTD

R

R

W

Figure 2. Terminal assignments of DSPR120.

3.1 Sensor connection

DSPR120 only accepts Pt100 RTD temperature sensor. For a three-wire RTD
with standard DIN color code, the two red wires should be connected to the
terminals 3 and 4. The white wire should be connected to terminal 5. For a two­wire RTD, the wires should be connected to terminals 4 and 5. Jump a wire
between terminals 3 and 4.

3.2 Power to the controller

The power cables should be connected to terminals 9 and 10. Polarity does not
matter. It can be powered by 85-260V AC power source. Neither a transformer
nor jumper is needed to wire it up. For the consistent with the wiring example
described later, we suggest you connect the hot wire to terminal 10 and neutral
to 9.

3.3 SSR output connection

The SSR control output of the DSPR110 provides a 12V DC signal that can
control up to 5 SSRs in parallel. Connect terminal 7 to the positive pole of the
SSR (terminal 3 on Auber’s SSRs). Connect terminal 6 to the negative pole of
the SSR (terminal 4 on Auber’s SSRs). Please make sure the SSR is installed
on the heat sink with proper current rating.

Instruction Manual

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4. Display Status

Power on

80

100

Display mode 1

rst

n

Display mode 2

Mash

Parameter settings

Display mode 3

Next parameter

Goto

Timer reset /

mode selection

Knob

Press

Knob

Knob

Press down an d

Hold for 5s

Press

Exit

Exit

Figure 3. Display modes of DSPR120

Display mode 1 (Normal operating mode): When power is turned on, the top
display window shows the current sensor temperature reading. When timer is
activated, the top display will be switched between the current temperature and
current time alternately. In mashing mode, the bottom display will show your set
temperature. In boiling mode, the bottom display will show your current output
percentage (e.g. P50 for 50% power output). Please check section 5 for how to
adjust set temperature/power.

Display mode 2 (Timer reset & Operation mode selection): This display
mode allows you to reset the timer, or to switch between the mashing and boiling
operation mode.

A short press of the knob will enter this display mode.

1) The display will show “rSt” on top and “n” at the bottom. This is the exit menu.
If you enter this mode by accident, you can press the knob again to exit this
display mode without changing anything.

2) Rotate the dial clockwise for one click will change the bottom display to “y”.

This menu is to reset the timer. Press the knob will reset the timer. It has two
purposes. A) If you want to use the timer as regular timer without correlation to
the temperature, you can start the timer at any time by the reset button. B) After
timer is timed up and process ended, you can restart the process again by the
reset button instead of power off the system and power it on again.

3) Rotate the knob with two clicks, the top display will change to “Mode” and
bottom will show “Mash*”. Rotate the knob again, the bottom display will change
to “boil”. These two menus are for setting the controller to either mashing control

or boiling control mode. Press the knob will set the controller to the operation
mode displayed. Please check section 5.1 for details.

Display mode 3 (Parameter settings): Press down and hold the knob for 5
seconds to enter the display mode 3. Please check section 6 for details.

5. Operation

5.1 Operation mode selection

This controller offers two operation modes, mashing and boiling. When the
mashing mode is selected, the controller functions as a temperature controller.
It automatically adjusts the power output to hold the temperature at set point.
When boiling control mode is selected, the controller functions as a power
regulator. It allows the user to manually adjusting the power to control the

strength of the boil. Figure 4 shows how to select and switch between these two
modes.

rst

n

rst

y

80

100

Knob

Press

mode

mash

Rotate

mode

boil

Rotate

Knob

Mash Mode

Boil Mod e

Available if timer

is enabled

(TF =on)

Available if timer

is enabled

(TF =on)

Rotate

Knob

Knob

Press

Knob

Press

Knob

Timer Reset

Knob

Press

Figure 4. Flow chart for time reset & operation mode selection

Press the knob once. The display will show “rSt”. Rotate the knob with two clicks,
the top display will change to “Mode” and bottom will show “Mash*”. Press the
knob will set the controller to mashing mode. When mashing mode is selected,
the yellow indicator on the top left corner of the panel will lit. This indicator will
be off if the boiling mode is selected.

Note *: due to the limitation of 7 segment LED display, the letter “M” is displayed as “m”.

5.2 Mashing Operation

When first powered up, make sure the controller is in the mashing mode: The
yellow colored mashing mode indicator on the upper left corner should be on,
and the bottom display has no “P” on the left. If not, please change the control
mode to mashing mode as discussed in section 5.1 above. If you were using the
controller in the mashing mode when powered off last time, the controller will
start in mashing mode.

After controller is powered up, the top LED displays the current temperature
reading from the sensor. If temperature sensor is not connected, it will show
“orAL”. The bottom LED displays your set temperature. To adjust its value, just
rotate the knob. Once the value of the setting is changed, a small dot on the right
bottom corner will be flashing. It tells you that the setting has been changed but
not confirmed. After you adjust the temperature to the desired number, push the
knob to confirm the change. After confirmation, the new setting will remain on
the display and the dot will be turned off. If you forgot to push the dial, the display
will return to original set temperature after 2 seconds. The set point will remain
unchanged. This mechanism is for preventing temperature set point change by
accident.

The Output indicator will stay on solid right after powered up. This mean the
controller is heating up the kettle at maximum speed. Once the temperature is
getting close to the set point, the output indicator will start to flash at slower rate
or take a pause. It indicates the controller is trying to modulating the power to
hold the temperature stable.

For how to set up the timer in mashing mode, please read section 6.2.

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5.3 Boiling Operation

When first powered up, make sure the controller is in the boiling mode: the
mashing mode indicator on the upper left corner is off and bottom display has a
“P” on the left. If not, change the control mode to boiling mode as discussed in
section 5.1 above. If you were using the controller in the boiling mode when
powered off last time, the controller will start in boiling mode.

The top LED displays the current temperature reading from the sensor. If
temperature sensor is not connected, it will show orAL. The controller will not
turn on the heater if the sensor is not connected. The bottom LED displays the
boiling output in percentage of the power. For example, if you use a 5500
Watts heater, “P50” mean the heater is running at 50% of power, or 2750
Watts (5500x50%=2750). The symbol “P” on the left is for making sure that the
display does not get confused with temperature setting of the mashing mode.
You can rotate the knob to adjust the output value. The new setting will take
effect automatically. There is no need to push the knob to confirm as the
temperature setting change in the mashing mode. For the first time use, while
the controller is still in the acceleration phase, you should set the boiling output
to a value below 60%. Once the controller finished the acceleration, it will
switch to this power level automatically. After getting familiar with your system,
you can set to a higher value that produce a rolling boil without boiling over.

When the controller is powered up, the output indicator will stay on solid. This
mean the controller is in the acceleration phase. Once the temperature rise
above the acceleration phase, the power output will be reduced to the value as
shown on the bottom display. The Output indicator will start to flash at slower
rate.

Note, when adjusting the boiling output setting while the controller is still in the
acceleration phase, the new setting will be shown on the bottom display.
However, it will not take effect until the acceleration phase is finished. If you want
to manually control the power output during the entire boiling process, set bAST
to zero (see section 6.3 for details).

For how to set up the boiling mode, please read section 6.3.

6. Control Parameters
Parameters are divided into three groups (figure 5): MASH for mashing control,
BOIL for boiling control, and SYST for system configuration. The same type of

parameter may have slightly different names when used in different mode. For

example, the timer setting in mashing mode is called “t”, while this parameter is
called “bt” in the boiling mode.

To enter parameter setting mode, press and hold the knob for at least 5s. Then
you will see “GOTO” on the top display. Rotate the knob, you will see the bottom
display changes with three different names: MASH (for mashing parameters,
figure 7), BOIL (for boiling parameters, figure 8) and SYST (for system settings,
figure 6). The parameter values are stored in the controller memory. All the
settings remain unchanged if you power it off.

Push the dial to enter the selected parameter group. Then top display shows the
current selected parameter name, and the bottom display shows its
value/options. Rotate the knob clockwise to increase the value, and rotate it
counter-clockwise to reduce the value. Faster rotating speed will change the
value rapidly. Once finished, press knob again to confirm and go to next
parameter. You can press the knob repeatedly to exit the setting quickly.

Press down

and hold the

knob for 5s

80

100

Knob

goto

mash

goto

boil

goto

syst

Enter Mash

mode settings

Enter Boil

mode settings

Enter System

settings

Knob

Press

Knob

Press

Rotate

Knob

Rotate

Knob

Knob

Press

Figure 5. Parameter group selection

6.1 System settings

Parameters that are shared by both control modes are under this group.

Table 1. System configuration parameters

System Configuration

Display

Code

Description

Setting

Range

Initial

Setting

Remark

tF

tF

Timer function

ON, OFF

ON

Note 1

tdIr

tdIr

Timer counting direction

dn, uP

dn

Pb

Pb

Temperature reading

offset

-100~+100 ° C
or ° F

0

Note 2

C-F

C-F

Temp. display unit

° C, °F

°F

Note 3

Note 1. Timer settings. tF, tdIr
tF: The timer function is controlled by a master parameter tF. When it is set to
ON, the timer function (for both mashing and boiling modes) is enabled. When
tF is set to OFF, the timer function is disabled.

tdIr: Timer direction parameter. Set it to up for timer counting up and dn for timer
counting down.

Note 2. Input offset. Pb
Pb is used to set an input offset to compensate the error produced by the sensor

or input signal itself. For example, if the controller displays 2ºC when probe is in
ice/water mixture, setting Pb = -2, will make the controller display 0ºC.

Note 3. Temperature unit setting. C-F
C-F determines the temperature unit. It can be set to C (Celsius, ˚C) or F

(Fahrenheit, ˚F).