Auber Instruments EZboil DSPR120 Instruction Manual

Auber Instruments
Instruction Manual
EZboil, Power Regulator for Boiling Process Automation DSPR120

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
-328° F ~ +932° F, -200° C ~ +500° C
range
Response time ≤ 0.5s
Display
1° C or ° F
resolution
Control mode Mashing, Boiling
Alarm function Process high alarm
Power supply 85~260VAC/50~60Hz
Power
≤ 5 Watt
consumption
Working Ambient
0~50ºC, 32~122ºF
temperature
48 x 48 x 100 mm (W x H x D, from the front panel to
Dimension
the back)
Mounting cutout 45 x 45 mm

2. Front Panel

5
4
3
Figure 1. The front panel of EZboil
2017.03
Version 1.2 (Mar, 2017)
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.
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 two-
wire 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
1
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
2
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.
6
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.
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Figure 2. Terminal assignments of DSPR120.
P1/9