Auber Instruments TH220A Instruction Manual

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Instruction Manual

TH220A TEMPERATURE AND HUMIDITY CONTROLLER

INSTRUCTION MANUAL

Version 1.3 (May, 2019)

1. Overview

This plug-n-play temperature and humidity controller is designed for high
relative humidity (>85%) and condensing environments, where slight
temperature drop may cause condensation and could damage the sensor. This
controller equipped with one of the most robust humidity sensors on the
market. It can be fully recovered even immersed in water. Ideal for curing
Fridge. The controller can control both temperature (heating or cooling) and
humidity (humidifying or dehumidifying) at the same time.

2. Specifications

Temperature Control Range - 40°C ~ 80°C, - 40°F ~ 176°F

0.1°C (between -9.9°C ~ 80°C)

Temperature Resolution

Temperature Accuracy 0.5°C
Temperature Control Mode On/Off Control. Heating or Cooling
Temperature Control Output 15 A, 120 V or 240 V AC *
Humidity Control Range 0 ~ 99.9% RH
Humidity Resolution 0.1% RH
Humidity Accuracy 4% RH

Humidity Control Mode

Humidity Control Output 15 A, 120 V or 240 V AC *
Operating Temperature 0°C ~ 50°C
Dimension 91 x 140 x 46 mm
Input Power 85 ~242 V AC, 50 Hz / 60 Hz
Sensor Cable Length 6 ft (2 m)
Power Cable Length 3 ft (1 m)

* Please note: Although both temperature and humidity output can handle up to 15A, the
combined total power of the two channels are limited to 15A due to the limitation of input
power cord.

3. Front Panel

1°C (between -40°C ~ 10°C)

0.1°F (between -9.9°F ~ 99.9°F)
1°F (between -40°F ~ 10°F,100°F ~176°F)

On/off control.
Humidifying or dehumidifying

Figure 1. Front Panel.

Measured temperature window: In normal operating mode, this window
shows measured temperature. In parameter setting mode, this window shows
parameter name.
Measured humidity window: In normal operating mode, this window shows
measured humidity. In parameter setting mode, this window shows parameter
value.
Alarm indicator: When the alarm is muted, the alarm indicator (the small dot
on the last digit) will be on.

SET key: Access the program settings and parameter settings.
UP key (Unmute): Increase the value. Press down momentarily to unmute the

alarm.
DOWN key (Mute): Decrease the value. Press down momentarily to mute the
alarm.

Temperature socket: Supply power to heater/cooler.
Temperature indicator: Red LED indicator; it is on when the temperature

socket is energized.

Humidity socket: Supply power to the humidifier/dehumidifier.
Humidity indicator: Green LED indicator; it is on when the humidity socket is

energized.

4. Getting Started

4.1 Power up the controller and connect the sensor

To power up the controller, simply plug its power plug to a wall outlet. Then
connect the 4-pin connector from the humidity sensor to the sensor input port
on the bottom of the controller. Please align the notch on the sensor plug with
the key on the sensor socket. You can refer to the Section 6 in the manual for
details.

4.2 Displayed Information

The top LED window displays the measured temperature, and the bottom LED
window displays the relative humidity reading. If sensor is not connected or
defective, the controller will show “ERR” in its display window.

There is one LED indicator on each side of the controller to show the output
status of each output socket. The red LED on the left is for the temperature­control socket, and the green LED on the right is for the humidity-control
socket.

4.3 Decide the Control Mode for Each Output Socket

The temperature-control socket can be set either to drive a heating device or to
drive a cooling device. This temperature-control mode is determined by the
parameter tCM (tCM), which can be set to “Ht” for heating, or “CL” for
cooling.

Similarly, the humidity-control socket can be set either to drive a humidifying
device or to drive a dehumidifying device. This humidity-control mode is
determined by the parameter hCM (hCM), which can be set to “H” for
humidifying, or “DeH” for dehumidifying.

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A

A

A

The user should decide the appropriate configuration for each output socket
based on the user’s particular application. Please refer to section 4.5 and
second 5 for details.

4.4 Change the Setpoints
The setpoint for temperature is TSP (TSP) and the setpoint for humidity is
HSP (HSP). To access the setpoints, simply short-press the SET key, and

then the top window will show TSP and the bottom window will show its value.
Use UP or DOWN arrow keys to adjust the value, and short-press the SET key
again to save the new value and go to the HSP setting. The way to adjust and
save the setting is the same as for temperature setpoint. Once you press the
SET key again, the controller will return to its normal operation mode. Please
see Figure 2 for how to access the setpoints.

Tem p

RH

Normal

Operati ng

Mode

72.0

50.5

SET

Sho rt-pr ess

Tem p

Temp eratur e

75.0

RH

Setp oint

TSP

SET

Sho rt-pr ess

Temp

RH

Humidity

Setp oint

HSP

40.0

SET

Sho rt-pr ess

Figure 2. How to access setpoints.

4.5 Adjust Parameters

Other control parameters are grouped into three sub-menus: temperature
(tE), humidity (Hu), and system (SYS)*. To access these parameters, long­press SET key for 3 seconds, the top window will show EDT (EDT). Then use
UP or DOWN arrow key to select the sub-menu item (tE, Hu, or SYS) in the
bottom window, then press SET key again to confirm the selection. Please see
Figure 3 for how to access these parameters. The details for each parameter
are explained in section 5.

Norm al Operati ng Mode

72.0

Temp

50.5

RH

Long- press

SET

3 second s

EDT

Temp

SYS

RH

shor t-press

SET

to confirm

Go th rough all pa ramete rs in

system menu

EDT

Temp

TE

RH

shor t-press

SET

to confirm

Go th rough all pa ramete rs in

temper ature m enu

72.0

Temp

50.5

RH

Norm al Operati ng Mode

EDT

Temp

HU

RH

shor t-press

SET

to confirm

Go th rough all pa ramete rs in

humi dity men u

Figure 3. How to access parameter menus.

5. Parameter Settings

All parameters are listed in Table 1. When a parameter is displayed in the top
window, its value is displayed in the bottom window. The user can use the UP
or DOWN arrow key to adjust the value in the bottom window, then press the
SEK key to save the new value and go to the next parameter. If no key is
pressed for 10 seconds, the controller will exit to its normal operating mode.

Table 1. Parameters.

Code Description Setting Range

Short-press SET Key

tSP tSP Temp. Setpoint

-40ºF ~ 176ºF
80ºC

-40ºC ~

HSP HSP Humidity Setpoint 0 ~ 99.9% RH 40.0 1

Long-press SEK Key

tE: temperature menu

Edt EDT Edit parameters

Hu: humidity menu

SYS*: system menu

C-F C-F Temp. Unit

tCM tCM Temp. Control Mode

TDF

tdF

toF toF

tAH TAH

tAL TAL

Temp. control settings (tE)

Temp. Control

Differential

Temp. Calibration

Offset
Temp. High
Limit Alarm

Temp. Low

larm

Limit

C: Celsius

F: Fahrenheit

Ht: heating mode

CL: cooling mode

0 ~ 50.0 3.0 1

-10.0 ~ 10.0 0 2

-40ºF ~ 176ºF
80ºC

-40ºC ~

-40°F ~ 176ºF
80ºC

-40°C ~

Temp. Anti-short

tAS TAS

Cycle Delay (only for

0 ~ 12 min 0 4

cooling)

ON: output energized

OFF: output de-

energized

tSF TSF

Temp. Sensor

Failure Operation

Humidity control settings (Hu)

HCM HCM

HdF HDF

HoF HoF

HAH HAH

HAL HAL

Humidity Control

Mode

Humidity Control

Differential

Humidity Calibration

Offset

Humidity High Limit

larm

Humidity Low Limit

larm

deH: dehumidifying

H: humidifying

0% ~ 50.0%

-10.0% ~ 10.0% 0% 2

0% ~ 99.9%

0% ~ 99.9%

Humidity Anti-short

HAS HAS

Cycle Delay (only for

0 ~ 12 min 0 4

dehumidifying)

HSF HSF

HdM2 HDM

hdt

HdT2

Humidity Sensor

Failure

Operation

Humidity Output

Delay Mode

Humidity Delay

Timer

ON: output energized

OFF: output de-

energized

0, 1, 2 0 8

0 ~ 999 min 5 9

No

Initi

te

al

75.0 1

tE 6

F 7

CL 1

95.0
3

32.0

OFF 5

H 1

3.0
1

%

90.0
%

3

10.0
%

OFF 5

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2

HoS

HOS

Hob2 HOB

Humidity Operating

Setpoint

Humidity Operating

Band

-40°F ~ 176°F 36 10

0°F ~ 200°F 2 10

System setting (SYS)1

PSD1 PSD

Device Access

Password

100 ~ 999 666 11

RST2 RST Factory Reset N, Y N 12

Note 1: The TH220 model doesn’t have SYS menu and the parameter PSD. Only the
TH220-W and TH220A-W have the password parameter PSD.
Note 2: These parameters, HDM, HDT, HOS, HOD, and RST are only available in

TH220A and TH220A-W.

Details About Each Parameter

Note 1. tSP and HSP are the setpoints for temperature-control and humidity-
control respectively. tdF and HdF are the control-differential (i.e., control
hysteresis band) to prevent the load being turned on and off frequently. These
hysteresis bands are one-sided. tCM is the temperature control mode, which
can be set to heating (HT) or cooling (CL). HCM is humidity control mode,
which can be set to humidifying (H) or dehumidifying (dEH).

In the heating mode of the temperature-control channel, the controller will
energize the output socket till the temperature rise to the setpoint tSP; the
output socket will be energized again when the temperature drops below (tSP ­tDF). In contrast, in the cooling mode of the temperature-control channel, the
controller will energize the output socket till the temperature drops to the
setpoint tSP; the output socket will be energized again when the temperature
rises above (tSP + tDF). Please refer to the Figure 4 below when the output
relay will be turned on.

Temp erature

TSP

(TSP – TDF)

Heat ing Mode

Relay ON

Temperature

(TSP + TDF)

TSP

Time

Figure 4. Temperature output is decided by tSP and tDF.

Similarly, in the humidifying mode of the humidity-control channel, the
controller will energize the output socket till the temperature rise to the setpoint
HSP; the output socket will be energized again when the temperature drops
below (HSP - HDF). In contrast, in the dehumidifying mode of the humidity­control channel, the controller will energize the output socket till the humidity
drops to the setpoint HSP; the output socket will be energized again when the
humidity rises above (HSP + HDF). Please refer to the Figure 5 below when
the output relay will be turned on.

Cool ing Mode

Relay ON

Time

Humidity

HSP

(HSP – H DF)

Humidifying

Mode

Relay ON

Humidity

(HSP + H DF)

HSP

Time

Figure 5. Humidity output is decided by HSP and HDF.

Small differential gives tight control. Large differential reduces the frequency of
cycle on and off, and it will extend the life of relay and compressor.

Note 2. toF and HoF are the sensor calibration offset for temperature and
humidity readings respectively. The offset is used to set an input offset to
compensate the error produced by the sensor or input signal itself.

For example, for temperature reading, if the unit displays 37ºF when the actual
temperature is 32ºF, setting parameter toF = - 5 will make the controller display
32ºF.

Note 3. The low limit alarm should be always lower than the high limit alarm.
When the measured temperature is higher than tAH, the temperature high limit
alarm will be on; when the measured temperature is lower than tAL, the
temperature low limit alarm will be on.

Similarly, for humidity readings, when the measured humidity is higher than
HAH, the humidity high limit alarm will be on; when the measured humidity is
lower than HAL, the humidity low limit alarm will be on.

When an alarm is on, the display will be flashing between the measured value
and the alarm type. To mute the alarm, press the DOWN key momentarily.
When the alarm is muted, the alarm indicator (see Figure 1, the small dot on
the last digit) will be lit. If the measured value gets out of the alarm zone then
gets back to the alarm zone again, the alarm will be on again. To resume the
alarm, press the UP key, the alarm indicator should turn off.

To disable the alarm, set High Limit Alarm = Low Limit Alarm. For example,
you can set both tAH and tAL to 32°F, so the temperature alarm will be
disabled.

Note 4. The parameter tAS and HAS are Anti-Short Cycle Delay for cooling
and dehumidifying respectively. The controller is used for cooling or
dehumidifying control, and the load is a compressor, use the parameter tAS or
HAS to prevent the compressor being turned on again when it is at high
pressure (i.e., just after it is turned off). Otherwise, it may shorten the life of
compressor. The Anti-Short Cycle Delay function is used to prevent the rapid
cycling of the compressor. It establishes the minimum time that the output
contact remains open (after reaching cutout) before closing again. The delay
overrides any load demand and does not allow the output contact to close until
the set time-delay value has elapsed. It gives time to release the refrigerant
pressure through evaporator. It is typically set to 4 - 6 minutes.

Note 5. Parameter tSF and HSF are the Sensor Failure Operation for
temperature and humidity control respective, they can be set to ON or OFF.

Dehumidifying

Mo de

Relay ON

Time

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When it is set to ON, the output will always be on when the sensor fails; when it
is set to OFF, the output will always be off when the sensor fails.

For example, when the unit controls a refrigerator for food, you may want to set
the tSF to ON if the sensor fails to keep the food cold. When it controls a
heater, you may want to set the tSF to OFF for safety purpose.

Note 6. EDT is the menu-editing parameter. Select tE menu for temperature
control settings; select Hu menu is for humidity control settings, and select
SYS is for system settings. Note: SYS menu is only available to TH220-W,
TH220A, and TH220A-W model.

Note 7. C-F is the parameter to set the temperature unit: C is for Celsius, and
F is for Fahrenheit.

Note 8. The parameter HdM sets the mode for delaying or constraint the

humidity output. It has three available modes, which are listed and explained in
the table below.

Table 2. Humidity output delay mode.

HdM Mode Details

0 No delay Default value. No delay or constraint on the

humidity output.
1 Time-delay Delay the humidity output by a timer set by HdT.
2 Temperature-

range

In situations such as controlling a curing chamber converted from a fridge,
there is usually a big decrease in the relative humidity (RH%) whenever the
compressor of the fridge is working. Also, there can be big increase in the
relative humidity when the user opens the door of the fridge. This kind of
change in RH% can gradually recover. However, if the controller’s humidity
control kicks in right away, it creates in a big swing in the RH%.

Using time-delay (HdM = 1) or temperature-range constraint (HdM = 2) can
help users to reduce the RH% swing.

Note 9. The parameter HdT sets the delay timer for humidity output, it can be
set from 0 to 999 minutes. When HdM is set to “1”, the output to the humidity
control will be delayed for a time period set by HdT.

Please note, the HdT is effective in both humidifying and dehumidifying mode.
In dehumidifying mode, the actual delay time of the humidity output is decided
either by either HAS or HdF, whichever is longer.

Note 10. The parameter HoS and Hob set up a temperature range within
which the humidity output is enabled. HoS defines a temperature setpoint for
enabling humidity output, i.e., a lower boundary; and Hob defines the
temperature band. Please see the diagram in Figure 6 for how these two
parameters affect the humidity output.

For example, when HdM = 2, HoS = 36°F, and HoB = 2°F, that means when
the temperature is below 36°F or above 38°F the humidity output won’t be
activated even when the controller calls for output to the humidity channel.

Allow humidity output only when the temperature is

within a range defined by parameter HoS and

HoD.

Figure 6. When the humidity output delay mode is HdM = 2, the humidity

output is allowed only when the temperature is within the range set by HoS and

Note 11. PSD is the Device Access Password (only available to TH220-W and
TH220A-W model). This parameter is used to lock the access to parameter
settings on AuberSmart app.

Note 12. RST is the reset parameter. Choose “n” to take no action. Chose “y”
to reset all parameters back to factory settings.

6. How to install the sensor to the unit.

The connector of sensor contains a slot for fitting pin connection. It locates at
the bottom of the controller. It also has a spring lock to prevent disconnections
from accidental pulling on the cable.

To install the sensor to the controller: 1) Identify the key on the male sensor
connector (Figure 7, a) and the notch on the female connector (Figure 7, b). 2)
Hold the tail of the female connector, align the notch and the key, and push the
female connector forward.

To remove the connector, hold the spring-loaded collar on the female
connector and pull it back. Please see Figure 8.

Temp eratur e

(HoS + H ob)

HoS

Humidity output enabled

HoD.

Time

(a)

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(b)

(c)

Figure 7. Install the sensor.

Figure 8. Remove the sensor.

Auber Instruments

5755 North Point Parkway, Suite 99

Alpharetta, GA 30022, USA

www.auberins.com

E-mail: [e-mail] Tel: [phone]

Copyright 2007-2019, Auber Instruments All Rights Reserved.

No part of this manual shall be copied, reproduced, or transmitted in any way

without the prior, written consent of Auber Instruments. Auber Instruments

retains the exclusive rights to all information included in this document.

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