Auber Instruments HD220 Manual de instrucciones - Página 3

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AUBER INSTRUMENTS

is below (H + Hy). For compressor based dehumidifier, the Hyd value should

not be set too small to prevent frequent cycling.

Note 4. HyH, Humidifier Hysteresis Band:

This is the differential band between turn on and turn off the humidifier. It is set

to the lower side of the humidifier set point (H - Hy). The humidifier will turn on

when humidity is below (H - HY – HyH), and turn off when humidity is above (H

– Hy).

For example, if Set Humidity H = 50%, Hy = 5%, Hyd = 3%, HyH = 2%, then

the humidifier will turn on when process humidity is lower than 43% (H - Hy -

HyH) and turn off when process humidity is above 45% (H - Hy). The

dehumidifier will turn on when process humidity is above 58% (H + Hy + Hyd)

and turn off when process humidity drops below 55% (H - Hy).

Note 5. OFS, Humidity Offset:

OFS (Humidity Offset:) is used to compensate the error produced by the

sensor or input signal itself. For example, if the unit displays 37% when the

actual humidity is 32%. Set parameter OFS = - 5 will make the controller

display 32%. The displayed process humidity = actual measured humidity +

OFS.

Note 6. AS, Anti-short Cycle Delay:

The Anti-short is the delay time to turn on the dehumidifier. If the dehumidifier

is compressor based, compressor should not be turned on immediately when it

is at high pressure (just after turned off). Otherwise, it may shorten the life of

compressor. The Anti-Short cycle delay function can be used to prevent the

rapid cycling of the compressor. It establishes the minimum time that the

compressor remains off (after reaching cutout) before turns on again. The

delay overrides any controller demand and does not allow the compressor to

turn on until the set time-delay value has elapsed. It gives time to release the

refrigerant pressure through evaporator. It typically set to 4- 6 (minutes). The

unit is in minutes. This setting is only valid for dehumidifying control.

Note 7. PrG, Program Mode:

When PrG is set to "ON", user can program up to 8 steps (Section 5). When

set it to "OFF", this multi-step function is disabled and controller is in single

step mode. User can only set "H-1" value (without timer t-1) when disabled.

Please be aware that if your controller is in single step mode, the green "RUN"

indicator will be off at all time. The start key, pause key and STEP key are

disabled. You can check the dehumidifier indicator (red on the left) and

humidifier indicator (green on the right) for the socket output status. When the

light is on, the corresponding socket will be activated.

Note 8. A-M, Power Outage/Startup Mode:

This parameter determines what the controller should do in an event of power

interrupt or outage. It also decides how the controller starts the program while

powered up. A-M can be set to three modes: C, S and M.

Mode C. After being powered on, the controller will continue the program from

the where it was powered off. For example, if step 3 is set for 40% and 5

hours, the power was interrupted at 2.1 hours. Then, when the controller power

up, the controller will continue to control at 40% for 2.9 hr.

Mode S. The controller will run the program from step 1 every time the

controller is powered up. This is suitable for situations where the power never

fails, or when the program mode "PrG" is set to "off".

Mode M. The program will be held at the step at which the controller was

powered off. The controller will hold the humidity at the set value. The

controller lower display will flash "hold" and process humidity alternatively. This

2018.06

mode is suitable for situations where the operator's attention is needed after

power interruption occurs.

Note 9. SFA, Sensor Failure Operation:

The SFA defines how the output would be if the sensor fails. It can be set to 0-

0, 0-1 or 1-0. Please refer to Table 3 for details. For example, in some

applications, you may want the dehumidifier to be working and the humidifier to

be off when sensor fails. Hence you need to set SFA to "1-0".

Table 3. Output of the controller when sensor fails.

SFA

Controller output when sensor fails

0-0

dehumidifier off, humidifier off

1-0

dehumidifier on, humidifier off

0-1

dehumidifier off, humidifier on

Note 10. TIM, Time unit setting:

The Time defines the timer unit setting for its timer function. It can be set to

hour (H) or minute (M). By default, Time is set to H.

Note 11. PSD, App access code (for HD220-W model only):

To prevent the operator from changing the settings by accident over the

AuberSmart App, this access code is required. The default value is 666.

6 8.9

3 6.8

SET

5 sec

High Limit

20.0

Alarm

SET

Low Limit

20.0

Alarm

SET

Humidity Control

Hysteresis Band

1.0

SET

HYD

Dehumidifier

5.0

Hysteresis Band

SET

HYH

Humidifier

5.0

Hysteresis Band

SET

OFS

Humidity Offset

Figure 3. Flow chart of setting up parameters.

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6 8.9

End

3 6.8

SET

App

PSD

Access Code

666

SET

TIM

Time Unit

SET

SFA

Sensor Failure

0-0

Operation

SET

A-M

Power Outage/

Startup Modes

SET

PRG

Program Modes

SET

Anti-short

Cycle Delay

M 6

P3/5