Elitech RCW-400A USER MANUAL
Elite of technology
Elitech cloud login: www.i-elitech.com.
Download the Elitech App for iOS and Android devices by scanning the QR codes provided in the manual.
Overview
The RCW-400A is a 4-channel temperature and humidity data logger offering wide measurement ranges and high precision sensitivity. Its large LCD screen displays time, current status, memory capacity, and recorded data. Integrated buzzer and relay alarms provide on-site alerts, while the SIM card slot enables SMS text message alerts via GSM technology. Combined with 3G data transmission and the Elitech cloud platform, users can monitor real-time data online and manage saved data remotely through the Elitech App or web browsers.
The standard accessory includes two-channel sensor wirings: one temperature and one humidity sensor. The device can be extended to support four-channel wirings (two temperature and two humidity sensors, or four temperature sensors). The built-in rechargeable lithium battery supports continuous real-time data uploading and SMS alerts even during power outages. It is widely applicable in food, pharmaceutical, and catering industries.
Features
- Monitor the status of cold storages.
- Monitor and record temperature and humidity data.
- SMS text alert in case of over temperature and humidity limits.
- Continuously running for at least 6 hours in case of power outage.
- Buzzer alarm and relay alarm functions.
- Adjustable recording interval.
- Maximum 20,000 recording points on device memory.
- Unlimited recording points on the cloud server.
- Remote data monitoring, uploading, printing, and management via the Elitech cloud.
Specifications
| Parameter | Value |
|---|---|
| Power supply | 12V/2.5A(DC) |
| Measurement range | -40°C~70°C |
| Temperature accuracy | ±1.0°C (-25°C~0°C); ±0.5°C (0°C~40°C); ±2°C (other) |
| Resolution | 0.1°C |
| Note on accuracy | Accuracy deviates 1% if sensor wire is longer than 50m. |
| Humidity range | 10%RH~90%RH. |
| Humidity accuracy | ±5%RH (Typical situation @25°C, 30%RH~80%RH); ±5%RH (@10°C, 30%RH~80%RH); ±5%RH (@40°C, 30%RH~80%RH) |
| Temperature sensor | NTC |
| Humidity sensor | Honeywell |
| Log Interval | 1 minute to 24 hours settable |
| Memory | Maximum 20,000 readings for each channel |
| Operating environment | Indoor use only, no exposure to rain or sun. Temperature: -10°C~45°C, relative humidity: 30%~70%. |
| Alarm output | Buzzer and relay |
| Communication Interface | 3G, SMS |
| Battery | 3.7V, 2200mAH lithium battery |
LCD Display
The LCD screen displays various indicators:
- 1. Power charging Indicator: ⚡️
- 2. Battery level Indicator: ?
- 3. Over limit alarm Indicator: ⚠️ (a.MAX: Over upper-limit; b. MIN: Under lower-limit)
- 4. Sensor channels: Displays channels 1, 2, 3, 4. Rotates display between 1&2 and 3&4.
- Channel 1: Pins 6,7,8,9
- Channel 2: Pins 10,11,12,13
- Channel 3: Pins 14&15
- Channel 4: Pins16&17
- 5. Date and time: ? ⏰
- 6. Recording status: ▶️ (a. Wait: waiting for recording; b. Act: recording)
- 7. Recorded points: ?
- 8. GSM network signal strength: ?
- 9. Elitech Cloud platform connecting indicator: ☁️
- 10. Humidity unit: %
- 11. Temperature unit: °C
Appearance and Operation
Appearance
The device features a front LCD screen displaying current temperature (e.g., 26.9°C) and humidity (e.g., 47.8%), along with time (e.g., 16:00) and status indicators. External indicators include a Power indicator, GSM antenna, and GSM network indicator. Buttons are located below the screen. The Device GUID (a 20-digit number) is also visible on the device.
Operation
- Access the device ID: The Device GUID is a 20-digit number used for identification.
- SIM card Installation and replacement: Insert the SIM card into the side slot. Ensure the logger is powered off before installation or removal to avoid damage.
- Antenna Installation: Connect the GSM antenna to the designated connector on the device.
- Power ON/OFF and Charging: Use the Power ON/OFF button to turn the device on or off. Connect the power adapter to the Power connector for charging.
Sensors Installation
Wiring diagrams for sensor connections:
2-channel temperature sensors
Channel 1 connects to pins 8&9, and Channel 2 connects to pins 12&13.
4-channel temperature sensors
Channel 1 to pins 8&9, Channel 2 to pins 12&13, Channel 3 to pins 14&15, and Channel 4 to pins 16&17.
4-channel temperature and humidity sensors
- Two channel humidity sensors: One connects to pins 6, 7, 8, 9; another connects to pins 10, 11, 12, 13.
- Two channel temperature sensors: One connects to pins 14&15; another connects to pins 16&17.
2-channel temperature and humidity sensors
- One channel temperature sensor: connects to pins 8&9.
- One channel humidity sensor: connects to pins 10, 11, 12, 13.
Note: Measured values will appear on the screen approximately 15 to 20 seconds after sensors are plugged in.
Elitech App
1. Download and Login
Scan the QR code on the front of this manual or search for "Elitech" on the App Store or Google Play to download the Elitech app. Register and log in to your account.
2. Add Device
Follow these steps to add your device:
- Click the "+" icon.
- Scan the QR code on the back of the device.
- Click "Add" to complete the process.
Elitech Cloud
1. Login Cloud Portal
Access the cloud portal by visiting: http://www.i-elitech.com. Click 'Help' within the portal for detailed operation instructions.
2. Top up SIM card
Refer to the Elitech App Instruction Manual for instructions on how to recharge your SIM card. A free trial period may be available for two months.
