1. Introduction
This manual provides detailed instructions for the installation, operation, and maintenance of the PRPYVPEY CJG-9000 Digital Time Thermostat. This device is designed for precise temperature control with an integrated timer function, suitable for various industrial applications such as drying and packaging.
The CJG-9000 features a 0-9999s timer, 220VAC output, and SSR compatibility, operating within a temperature range of -50 to 1372°C.
Figure 1: Front view of the PRPYVPEY CJG-9000 Thermostat.
2. Specifications
| Feature | Specification |
|---|---|
| Power Supply | 100-240V AC |
| Output | 220V AC, voltage output for SSR |
| Temperature Range | -50 to 1372°C |
| Timer Function | 0-9999 seconds |
| Dimensions | 48 x 48 x 80 mm |
| Mounting Hole Cutout Size | 45 x 45 mm |
| Compatible Thermocouple Types | K, E, J, N type |
| Item Weight | 1.76 ounces (approximately 50g) |
Figure 2: Different dimensions of CJG-series thermostats. The CJG-9000 is the 48x48mm version.
3. Setup and Wiring
Before installation, ensure the power supply is disconnected. The CJG-9000 thermostat requires careful wiring according to the diagrams below.
3.1 Terminal Identification
Figure 3: Back view of the CJG-9000 showing the internal wiring diagram for power, sensor, and output connections.
Figure 4: Labeled terminal connections for SSR output, 220VAC output, 100-240VAC input, and thermocouple input.
- SSR Output: Connect to Solid State Relay (SSR) for heater control.
- 220VAC Output: Direct 220VAC output for heater control (if not using SSR).
- 100-240VAC Input: Main power supply for the thermostat.
- Thermocouple Input: Connect K, E, J, or N type thermocouple for temperature sensing.
3.2 Wiring Diagrams
Refer to the following diagrams for proper connection of the thermostat with a heater and thermocouple.
Figure 5: Wiring diagram showing connections for the thermostat, an external Solid State Relay (SSR), a heater, and a thermocouple. The thermostat controls the SSR, which in turn controls the heater.
Figure 6: Wiring diagram showing direct connections for the thermostat, a heater, and a thermocouple, including an inline fuse for safety. The thermostat directly controls the heater.
Important: Always ensure correct polarity for thermocouple connections. Incorrect wiring can lead to inaccurate readings or damage to the unit. It is recommended to install a fuse for circuit protection.
4. Operating Instructions
The CJG-9000 thermostat offers two primary working modes. Users can select the desired mode within the controller settings.
4.1 Working Mode 1: Time-Based Heating
In this mode, upon power-on, the timer starts counting, and heating begins. When the set time elapses, heating stops.
Example: If a user needs to seal a packing bag on a heater for 10 seconds, they would set the timer to 10 seconds. The heater will activate for 10 seconds and then turn off.
4.2 Working Mode 2 (Default): Temperature-Controlled Timing
This is the default mode. Upon power-on, heating begins. Once the measured temperature reaches the set temperature value, the timer starts counting. When the set time elapses, an alarm buzzer in the controller will activate to notify the user.
Example: For drying materials at 70°C for 10 minutes:
- Connect a heater to the temperature controller.
- Set the desired temperature value to 70°C.
- Set the timer value to 10 minutes.
- When the temperature is below 70°C, the controller outputs 220V AC to the heater, activating it.
- The controller maintains the temperature at 70°C using PID control.
- Once 70°C is reached, the 10-minute timer begins.
- After 10 minutes, the alarm sounds.
4.3 Setting Parameters
Detailed instructions for setting temperature, time, and operating mode are typically found in the included English operation manual. Refer to the physical manual for specific button functions and menu navigation.
5. Maintenance
- Keep the unit clean and free from dust and moisture.
- Regularly check wiring connections for tightness and signs of wear.
- Ensure adequate ventilation around the unit to prevent overheating.
- Do not expose the unit to corrosive gases or liquids.
- For cleaning, use a soft, dry cloth. Do not use abrasive cleaners or solvents.
6. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| No Power | Incorrect power wiring; Power supply issue; Blown fuse. | Check 100-240VAC input connections. Verify power source. Replace fuse if necessary. |
| Inaccurate Temperature Reading | Incorrect thermocouple type; Faulty thermocouple; Incorrect thermocouple wiring polarity. | Ensure correct K, E, J, or N type thermocouple is used. Check thermocouple for damage. Verify polarity of thermocouple connections. |
| Heater Not Activating | Incorrect output wiring; Faulty SSR (if used); Heater malfunction; Temperature setpoint not reached (Mode 2). | Check 220VAC output or SSR connections. Test SSR and heater independently. Verify operating mode and setpoint. |
| Timer Not Functioning | Incorrect mode selection; Timer set to 0. | Verify operating mode (Mode 1 or Mode 2). Ensure timer value is set correctly. |
7. Warranty and Support
For warranty information and technical support, please refer to the documentation provided with your purchase or contact the manufacturer directly.
Manufacturer: PRPYVPEY