PID Controller With Built-in Timer (Relay Contactor)
This PID controller has a built-in timer. It is suitable for process that requires both precision temperature and time control, a very common requirement for many temperature related applications. For example, it can be used for powder coating oven or food cooking oven. Heat transfer printing is another example. The timer can also be used independently from the temperature control. e.g. User can use the PID for temperature control of the espresso machine and timer for the brew pump or dosing coffee grinder.
Different than SWA-2441 PID controller, SWA-2441B has two additional alarm relay outputs instead (SWA-2451 only has one alarm output). User can assign alarm relay 1 as timer output alarm or temperature alarm, and alarm relay 2 as temperature alarm. One example is, when temperature is too high, high temperature alarm (relay 2) will be triggered. When time is up, timer alarm (relay 1) is triggered.
The temperature control function offers three temperature control modes: PID, on/off and manual. The PID mode is useful for precision temperature control applications. The manual mode is like a dial on the stove that control the power output independent of the temperature. It is a useful feature for controlling the boiling of water used for beer brewing process. The on/off control is suitable for devices that does not like to be switched too frequently such a solenoid valve or refrigerator compressor. In addition to the on/off control, when used for cooling control, this controller also offer the "Anti-Short Cycle Delay (ASd) function that further protect the compressor from over pressure start. It allows the user to set a specific minimum delay time that prohibit the compressor to start after it was turned off.
The timer has eight different working modes.
Three of them are correlated with the temperature control. The first two start the timer when temperature reaches the set point. When time is reached, it will turn on the alarm relay. One mode will also shut off the heater at the same time. The third mode delay the heating until the time is reached. It starts the timer when powered up. When time is reached, the relay pulls in and heater starts.
The other 5 modes allow the timer to work totally independent of the temperature controller. It can be set to time delayed relay pull-in, time delayed relay drop-out, time delayed relay pull-in and drop out, repeat pull-in and drop-out or repeat drop-out and pull-in.
The timer can be reset and start by a switch connected to the reset terminals without powering off the controller. The timer function can also be deactivated so that controller functions as regular 1/16 DIN dual display controller. When alarm relay is not used for timer action, it can be used as temperature alarm. The alarm can be set for high, low, deviation high or deviation low alarm.
SWA-2441B has a 10 A relay contact output. It can be used for controlling an external contactor. It can also be used for driving a small heater or freezer directly if the current is less than 10A.
Click here to download instruction manual.
Main Specification
| Input type | Thermocouple: K, E, J, T, S. RTD: Pt100, |
| Input range | K (-20~2300ºF), S (-20~2900ºF), T (-190~750ºF), E (-20~1290ºF), J (32~1800ºF), Pt100 (-200~1100ºF) |
| Display | Two lines, Four digits. Temp & Time, or Temp & Set Temp. |
| Display Resolution | Temp 1°C, °F and 0.1 °C. °F, Time: 1 Sec., 1 Min. |
| Accuracy | Temperature: ±0.5% of full input range. Timer: 1 sec. |
| Control mode | Temperature: PID, Manual control, On-Off, Time: Timed PID, Timed On-Off, Independent Timer |
| Timer mode | Single delay, Double delay, Count up, Count down, |
| Timer range | 1-9999 sec. 1-9999 min. |
| Control Output | Relay output: NO contacts: 10A at 240VAC, 10A at 30VDC |
| Alarm | Timer, Process high/low alarm, deviation high/low alarm |
| Alarm output | Relay: 5A at 240VAC, 10A at 120VAC, or 3A at 30VDC |
| Power supply voltage rating | 90~265VAC/50~60Hz |
| Dimension | 1.89 x 1.89 x 4.25", or 48 x 48 x108mm (1/16 DIN). Insertion depth from front panel: 3.95" or 100 mm |
| Panel cutout | 1.75x1.75" or 44.5 x 44.5 mm. |
Auberins also stocks K type thermocouple with 6 ft cable, SSR from 10 A to 50 A. 1/16 DIN Controllers with 30 steps of ramp/soak, 1/32 DIN and 1/4 DIN Controllers. Please see my other auctions or email for details
*Warranty: 6 month warranty is offered to protect our buyers from defective parts only. We are not liable for any damages caused due to improper use or abuse.
Attention for international buyers. The shipping service provided by this listing is via USPS First Class air mail. The tracking number may not work for the country you live. For most countries, the tracking number will stop working once the package let USPS international mail sorting center in Miami or New York. The shipping time: For West and North Europe, Australia, New Zealand, Canada (except central region) 2-3 weeks. (It might be as short as one week when lucky, but that is not the general case). For South Europe, Russia, Asia: Central region of Canada: 3-4 weeks. For Middle East, Central and South America 5=6 weeks, If you need faster shipping service, please contact us.
Attention for international buyers. The shipping service provided by this listing is via USPS First Class air mail. The tracking number may not work for the country you live. For most countries, the tracking number will stop working once the package let USPS international mail sorting center in Miami or New York. The shipping time: For West and North Europe, Australia, New Zealand, Canada (except central region) 2-3 weeks. (It might be as short as one week when lucky, but that is not the general case). For South Europe, Russia, Asia: Central region of Canada: 3-4 weeks. For Middle East, Central and South America 5-6 weeks. If you need faster shipping service such as Fedex express mail or EMS, please contact us before you place the order. While carrier transit time and customs clearance time are beyond our control, please email us if your item is not delivered after the estimated delivery time stated above. Customer satisfaction is our focus and we will try our best to trace the package and offer solutions.