Auber Instruments AW-HD330 Manual de instrucciones - Página 3

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AUBER INSTRUMENTS

Note 3. Hyd, Dehumidifier Hysteresis Band:

This is the differential band between to turn on and turn off the dehumidifier. It

is set to the higher side of the dehumidifier set point (H + Hy). The dehumidifier

will turn on when humidity is above (H + HY + Hyd) and turn off when humidity

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 will 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 the process humidity is lower than 43% (H - Hy

- HyH) and will 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): OFS is used to compensate for the error produced by

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

actual humidity is 32%. Setting 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, the 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", users can program up to 8 steps (Section 5). When

PrG is set to "OFF", this controller is in single step mode (multi-step function is

disabled). In single step mode, users can only set "H-1" set point and the

controller will regulate the humidity at "H-1" set point forever. No step timer nor

other step set points can be set in single step mode. Please be aware that if

your controller is in single step mode, the green "RUN" indicator will be off at all

time. The start, pause, and STEP keys 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.

Tip: After you change PrG parameter, please reboot your controller so

new setting will be activated (remove the power input cord of this

controller then plug it back).

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.

2022.01

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. When the controller powers 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

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 ON and 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 WIFI model only):

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

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

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