Inkbird IHC-200 Plug-n-Play Humidity Controller
User Manual
Version 1.3s
Manufacturer: Inkbird Tech. Co., Ltd.
1. Overview
What is IHC-200?
The IHC-200 is an easy-to-use, safe, and reliable dual relay output humidity controller. Its plug-and-play design and dual LED screens offer a more user-friendly experience. The IHC-200 can control any 100-265 volt humidifier, dehumidifier, or fan.
Main Features
- Switches automatically between humidification and dehumidification modes.
- Controls humidity by setting value and differential value.
- Calibrates the humidity value.
- Provides delay protection for control output.
- Queries current temperature.
- Alarms when humidity exceeds high/low humidity setting values.
- Alarms when there is a sensor error or humidity exceeds the limit.
2. Specification
| Parameter | Value |
|---|---|
| Power Input | 100 ~240VAC, 50Hz/60Hz |
| Power Output | Max. 10A, 100V ~240V AC |
| Power Consumption | <3W |
| Humidity Measuring Range | 5%-99.99%RH |
| Humidity Control Range | 5%-99%RH |
| Resolution | 1%RH |
| Accuracy | ±3%RH |
| Sensor Model | HTG3535CH |
| Sensor Stability | <0.5%RH/yr |
| Sensor Length | 2m / 6.56ft |
| Relay Contact Capacity | Humidification (12A, 100-240VAC) Dehumidification (12A, 100-240VAC) |
| Input Power Cable Length | 1.5m (5ft) |
| Output Power Cable Length | 30cm (1ft) |
| Dimension (Main Body) | 140x68x33mm (5.5x2.7x1.3 inch) |
| Dimension (Socket - US Version) | 85x42x24mm (3.3x1.7x1.0 inch) |
| Dimension (Socket - EU Version) | 135x54x40mm (5.3x2.1x1.6 inch) |
| Dimension (Socket - UK Version) | 140x51x27mm (5.5x2.0x1.0 inch) |
| Ambient Temperature | -30~75°C / -22~167°F |
| Storage Temperature | -30~75°C / -22~167°F |
| Storage Humidity | 20~85% (No Condensate) |
| Warranty | 1 Year |
3. Keys Instruction
The controller features a digital display and several buttons for operation. The display shows current values (PV) and setting values (SV).
Controller Display and Buttons:
- PV (Process Value): Displays current humidity in running mode. Displays menu code in setting mode. Pressing the Decrease and Increase keys simultaneously displays the current temperature.
- SV (Setting Value): Displays setting humidity in running mode. Displays setting value in setting mode.
- SET Key: Press and hold for 3 seconds to enter the function setting menu. Press and hold for 3 seconds during setting to quit and save changes.
- DECREASE Key (▼): In running mode, press to inquire about the Dehumidification Differential (DD) value. In setting mode, press to decrease the current parameter value.
- INCREASE Key (▲): In running mode, press to inquire about the Humidification Differential (HD) value. In setting mode, press to increase the current parameter value.
Indicator Lamps:
- Humidification Indicator Lamp: On when humidification is working; Off when humidification is stopped.
- Dehumidification Indicator Lamp: On when dehumidification is working; Off when dehumidification is stopped; Flickers when dehumidification is in delay protection.
Device Sockets:
The controller has two output sockets:
- Humidification Device Socket (WORK1): For connecting a humidifier.
- Dehumidification Device Socket (WORK2): For connecting a dehumidifier.
The controller supports different socket types for various regions, including US, EU, and UK versions.
4. Key Operation Instruction
4.1 Power On/Off
To turn off the controller: When working normally, press and hold the SET, INCREASE (▲), and DECREASE (▼) keys simultaneously for 3 seconds. The display and all outputs will turn off.
To turn on the controller: When powered off, press and hold the SET, INCREASE (▲), and DECREASE (▼) keys simultaneously for 1 second to enter normal measuring mode.
4.2 Enquiry Differential Value
When the controller is working normally, short press the INCREASE (▲) key once to display the humidification differential (HD) value. Short press the DECREASE (▼) key once to display the dehumidification differential (DD) value. After two seconds, the display will return to the normal humidity reading.
4.3 Enquiry Measuring Temperature
Press the INCREASE (▲) and DECREASE (▼) keys simultaneously. The current temperature value will be displayed on the PV screen. Release the keys; after 2 seconds, the display will return to the normal humidity reading.
4.4 How to Set Parameters
When the controller is working normally, press and hold the SET key for 3 seconds to enter the parameter setting mode. The PV screen will display the first menu code, "HS" (Humidity Set Value), and the SV screen will show its current setting value.
Press the INCREASE (▲) key to page down through the menu codes. Press the DECREASE (▼) key to change the current parameter value.
After completing all settings, press and hold the SET key for 3 seconds to save the parameter settings and return to the normal humidity display mode. If there is no operation for 10 seconds during the setting process, the system will automatically quit the menu and return to normal display mode without saving the modifications.
4.5 Setup Flow Chart
The parameter setup process can be visualized as follows:
- Press and hold the SET key for over 3 seconds to enter the parameter setup mode.
- The first parameter is HS (Humidity Set Value). Set the desired value (default 50%RH). Press SET to confirm.
- Next is HD (Humidification Differential Value). Set the differential value (default 5%RH). Press SET to confirm.
- Then is DD (Dehumidification Differential Value). Set the differential value (default 5%RH). Press SET to confirm.
- Next is AH (Alarm High Humidity Set Value). Set the high alarm limit (default 99%RH). Press SET to confirm.
- Then is AL (Alarm Low Humidity Set Value). Set the low alarm limit (default 0%RH). Press SET to confirm.
- Next is PT (Delay Protection Value). Set the compressor delay time (default 1 minute). Press SET to confirm.
- Finally is CA (Humidity Calibration). Set the calibration offset (default 0%RH). Press SET to confirm.
- After setting CA, press and hold SET for 3 seconds to save all settings and return to the "Working normally" mode.
5. Menu Instruction
| Menu Code | Function | Setting Range | Default | Unit | Remarks |
|---|---|---|---|---|---|
| HS | Humidity Set Value | 5~99 | 50 | % RH | 5.1 |
| HD | Humidification Differential Value | 1~20 | 5 | % RH | 5.1 |
| DD | Dehumidification Differential Value | 1~20 | 5 | % RH | 5.1 |
| AH | Alarm High Humidity Set Value | 50~99 | 99 | % RH | 5.2 |
| AL | Alarm Low Humidity Set Value | 0~50 | 0 | % RH | 5.2 |
| PT | Delay Protection Value | 0~10 | 1 | minute | 5.3 |
| CA | Humidity Calibration | -10~10 | 0 | % | 5.4 |
5.1 Temperature Control Range Setting (HS, HD, DD)
When the controller is operating normally, the LED displays the current humidity. It automatically recognizes and initiates humidification or dehumidification.
Dehumidification: If the measured humidity PV is greater than or equal to HS (Humidity Set Value) + DD (Dehumidification Differential Value), the controller enters dehumidification mode. The dehumidification indicator lamp turns on, and the dehumidification relay activates. If the dehumidification indicator light flickers, the equipment is in delay protection mode. When the measured humidity PV is less than or equal to HS (Humidity Set Value), the dehumidification indicator lamp turns off, and the dehumidification relay stops working.
Humidification: If the measured humidity PV is less than or equal to HS (Humidity Set Value) - HD (Humidification Differential Value), the controller enters humidification mode. The humidification indicator lamp turns on, and the humidification relay activates. When the measured humidity PV is greater than or equal to HS (Humidity Set Value), the humidification indicator lamp turns off, and the humidification relay stops working.
5.2 Alarm High/Low Limit Setting (AH, AL)
If the measured humidity PV is greater than or equal to AH (Alarm High Humidity Set Value) or less than or equal to AL (Alarm Low Humidity Set Value), an alarm will sound ("BI-BI-BIII"). The current value, AH, or AL will be displayed on the PV screen. The alarm sound can be stopped by pressing any key, but the alarm status will persist until the measured humidity returns to the normal range.
5.3 Compressor Delay (PT)
In dehumidification mode, after power on, if the measured humidity PV is greater than or equal to HS (Humidity Set Value) + DD (Dehumidification Differential Value), the equipment will not start dehumidification immediately but will wait for the preset delay time (PT).
If the time interval between two dehumidification operations (or from power on to dehumidify) is longer than the preset delay, the equipment will start dehumidification immediately. If the time interval is shorter than the preset delay, the equipment will wait until the preset delay is satisfied before starting dehumidification.
The delay time is calculated immediately after the moment dehumidification stops.
5.4 Temperature Calibration (CA)
When there is a deviation between the measured humidity and the actual humidity, use the humidity calibration function to align them. The corrected humidity value is equal to the humidity before calibration plus the corrected value (which can be positive, zero, or negative).
6. Error Description
Sensor Fault Alarm
If the humidity sensor is in a short circuit or open loop condition, the controller will enter sensor fault mode and cancel all actions. A buzzer will alarm, and the LED will display "ER". The buzzer alarm can be dismissed by pressing any key. After the faults are resolved, the system will return to normal working mode.
7. Technical Assistance and Warranty
7.1 Technical Assistance
If you encounter any problems installing or using this thermostat, please carefully review the instruction manual. For assistance, please email cs@ink-bird.com. Emails will be replied to within 24 hours from Monday through Saturday.
You can also visit the Inkbird website at www.ink-bird.com to find answers to common technical questions.
7.2 Warranty
INKBIRD TECH. C.L. warrants this thermostat for one year from the date of purchase, provided it is operated under normal conditions by the original purchaser (non-transferable). This warranty covers defects caused by Inkbird's workmanship or materials and is limited to the repair or replacement, at Inkbird's discretion, of all or part of the thermostat. The original receipt is required for warranty claims.
Inkbird is not responsible for injury, property damage, or other consequential damages arising from the product's workmanship or alleged defects.
No other representations, warranties, or conditions, express or implied, statutory or otherwise, are provided beyond those contained herein.
Contact Us
- Business Contact: sales@ink-bird.com
- Technical Support: cs@ink-bird.com
- Business Hours: 09:00-18:00 (GMT+8) from Monday to Friday
- URL: www.ink-bird.com
