Auber Instruments DSPR400 Manual de instruções - Página 8

Procurar online ou descarregar pdf Manual de instruções para Controlador Auber Instruments DSPR400. Auber Instruments DSPR400 9 páginas. Distilling controller

Imprimir página

AUBER INSTRUMENTS

temperature that the controller is capable of reading, or set to "off". If a relay is

set to process alarm, the value of AL represents the absolute low alarm; the relay

will be activated when PV <= AL. If a relay is set to deviation alarm, the value of

AL represents the temperature deviation below the set value; the relay will be

activated when PV <= (SV- AL).

Tip 1: In Process Alarm Mode, AL should always be less than AH (AL1 < AH1,

AL2 < AH2), otherwise, the alarm relay will stay activated all the time.

Tip 2: A relay can be set to work for process/deviation high alarm only (i.e., set

AL = off), for low alarm only (i.e., set AH = off), or for both high and low alarm.

Tip 3: Deviation alarm settings are not valid for Distilling Mode (on DSPR220 or

DSPR400) where there is no set temperature.

Table 7. Alarm parameters listed in alarm setting menu

Alarm Configuration (Alarm parameters part 2)

Display

Code

Description

AH1

Alarm 1 high limit

AL1

Alarm 1 low limit

Alarm 1 hysteresis

HY1

band

AP1

Alarm 1 pulse length

AP1

AEO1

AEo1

Alarm 1 ending option

AH2

AH1

Alarm 2 high limit

AL2

AL1

Alarm 2 low limit

Alarm 2 hysteresis

HY1

HY2

band

AP2

AP1

Alarm 2 pulse length

AEo2

Alarm 2 ending option

Aeo2

goto

alam

Knob

Press

Alarm 1

ah1

high limit

off

Knob

Press

Alarm 1

al1

off

low limt

Knob

Press

Alarm 1

hy1

hysteresis

0.3

band

Knob

Press

Alarm 1

ap1

pulse length

pulse

Knob

Press

aeo 1

Alarm 1

ending option

Figure 9. Flow chart of setting alarm parameters

2021.09

Initial

Setting Range

Setting

OFF, 1 ~ 9999

OFF

OFF, 1 ~ 9999

OFF

0.1-100.0

0.3

1-100

0, 1, 2

OFF, 1 ~ 9999

OFF

OFF, 1 ~ 9999

OFF

0.1-100.0

0.3

1-100

0, 1, 2

End

100

Knob

Press

Alarm 2

aeo2

ending option

Knob

Press

Alarm 2

ap2

pulse length

Knob

Press

Alarm 2

hy2

hysteresis

0.3

band

Knob

Press

Alarm 2

al2

low limt

off

high

Knob

Press

ah2

Knob Press

off

Alarm 2 high

limit

Note 22. HY (Hysteresis Band), determines the hysteresis band between

temperature of activating and deactivating alarms. It is also called differential

band by some manufacturer. The unit is degree F or C. For example, Relay 1 is

set as a non-latching process alarm with relays settings RL1 = Pr, Lgc1 = RL_C,

LAt1 = N, AH1 = 200, AL1 = 100 and HY = 3 (temperature unit is F). For the high

limit alarm, when the process temperature is greater and equal to 200˚F, the

relay will pull in; and when process temperature is less than 197˚F, relay will drop

off. For the low limit alarm, relay will pull in when process temperature is less

than 100˚F; and the relay will drop off when process temperature is greater or

equal to 103˚F.

Note 23. AP (Alarm Pulse), determines the time duration of which a relay stays

activated. The unit is second. Pulse length can be set from 1 to 100 seconds.

This setting is only valid when the Relay Latching Mode is set to Pulsing, i.e.,

LAt = P.

Note 24. AEO (Alarm Ending Option), determines the alarm relay status when

timer is ended. (The top display will switch between the current temperature and

Remark

"End" alternately.) AEO1 is for alarm relay 1 and AEO2 is for alarm relay 2.

Note 20

AEO parameter can be set to 0, 1 and 2. If AEO = 0 and timer is ended, there is

Note 21

no status change on that specific relay output; if AEO = 1 and timer is ended,

Note 22

that specific relay output will be reset to the initial status automatically; If AEO =

2 and timer is ended, user needs to manually press the front key A/key B to reset

Note 23

that alarm 1/alarm 2 to the initial status. For example, if AEO1 = 2 and timer is

Note 24

ended, push front key A to reset alarm 1; if AEO2 = 2 and timer is ended, push

Note 20

front key A to reset alarm 2.

Note 21

Note 22

8. Application Examples:

8.1 Example for alcohol distilling

Note 23

Set the high power accelerated heating limit to 170.0° F (76.7° C) and power

Note 24

output to be at 100% of the element capacity, set distilling power at 30%. Set the

foreshots/heads alarm at 172° F. Set the distillation ending criterial to be either

when temperature rise to 200.0 ° F or when the time is more than 3 hours. When

the controller is powered up, it will heat the wash with full power. After the wash

temperature reaches 170° F, the power is automatically reduced to 30%. When

temperature reaches 172° F, the alarm will beep four times to notify the operator

that temperature is close to the alcohol boil temperature so that he can remove

the heads. Soon the temperature rise to 173.0° F, the timer is activated. After

distilling for a while the content of alcohol is depleted and temperature starts to

rise. Once the temperature reaches 200.0° F, the heater is turned off and the

controller will send long beeps and flashing "End" on the display. if the

temperature does not rise to 200.0° F after 3 hours, the heater will also be turned

off. During the distillation, the user can use the rotary knob to fine tune the boil

at any time. The figure below shows how the power is correlated to the

temperature and time.

Figure 10. Example for alcohol distilling (Power output correction with

temperature and time.) Setting: dAST=170, dOUT=100, dt=3:00, dFSP=200.0,

dALH=172.0 dtSP=173, tF=ON, FF=ON, dEO=OFF. Dial=P30.

WWW.AUBERINS.COM

P8/9