PCT Thermocouple Temperature Transmitter
The Apure PCT is a field-mounted temperature transmitter with a listed two-wire 4–20 mA output. Select the sensor and calibrated span for the process and the receiving instrument.
- Field-mounted temperature measurement
- Two-wire current signal
- Sensor and calibrated span by configuration
Thermocouple and RTD configurations
A thermocouple produces a small voltage that depends on the measuring and reference junction temperatures. Select the thermocouple type, use compatible extension wire when needed and confirm how the transmitter handles cold-junction compensation. A resistance temperature detector (RTD) uses a change in resistance and requires a matching input and wiring arrangement.
Setting up the current loop
Match the transmitter span and input type to the sensor. Scale the receiving display or control input to the temperatures assigned to 4 mA and 20 mA. Verify the loop supply, load and wiring for the ordered unit, then compare the indicated value with a suitable temperature reference.
Probe and process selection
Provide the medium, normal and peak temperatures, pressure, connection, insertion depth and probe dimensions. Confirm the sheath and any thermowell for those conditions. Probe and thermowell response depends on the assembly and heat transfer at the measurement point.
Performance parameters
See the Specification tab for the listed values. Confirm the probe construction, including any armored or other special version, for the application.
These values retain the previously published entries. Confirm the range for the ordered sensor, the test conditions behind the response time, the missing diameter unit and the allowable process pressure. For hazardous-area use, obtain the certificate and marking for the exact configuration.
| Brand | Apure |
|---|---|
| Model | PCT |
| Output signal | 4 ~ 20mA |
| Power supply voltage | 24VDC |
| Long-term stability | less than or equal to 0.2%FS/ year |
| Response time | less than 20ms |
| Placement depth | greater than or equal to 10cm (special requirements can be customized) |
| Power consumption | < 0.5w |
| environment temperature | – 40 ℃ ~ 80 ℃ |
| relative humidity | 0 ~ 95%RH |
| mechanical vibration | f < 55HZ, amplitude < 0.15mm |
| Listed temperature range | – 150 ℃ ~ 400 ℃ |
| Listed diameter reference (unit to confirm) | 7 (special requirements can be customized) |
| Previously listed pressure reference | static external pressure at operating temperature |
| Previously listed hazardous-area marking | Exia Ⅱ CT6 (customizable) |
