Product Update (8/27/2024): The new model TD340 with a two-stage heating & cooling control is now available! Please read the
TD340 user manual for details. It replaces the older model TD330.
TD340 model updates:
- New control logic. Now support two-stage heating and/or cooling control.
- Flexible output sockets configuration.
The TD340 is a temperature controller for heating, ventilating, and air-conditioning (HVAC) controls using an external medium such as air or water. The controller comes with two sensors. The primary sensor (Sensor1) should be placed in the room or close to the object where the temperature needs to be regulated. The auxiliary sensor (Sensor2) should be placed to monitor the temperature of the external medium. The temperature difference between the two sensors can be used as an additional criterion for controlling the power output.
Two independent channels are available, and each channel has its own set temperature. There are two output sockets, one for cooling and one for heating. The controller also offers the flexibility of re-assigning the heating or cooling output to one or both sockets per the user’s setting.
This controller is a plug-and-play controller that requires no wiring. Both the heating and cooling control modes have simple on/off control, similar to a mechanical thermostat but with higher precision due to an adjustable hysteresis band, precise sensors, and digital readouts. An anti-short function is provided for cooling output to protect the compressor from frequently cycling on/off during high-pressure Freon.
Two digital silicon band gap sensors are used. The advantage of this sensor is that it is more reliable in moist environments than thermistor sensors. This digital sensor can also be immersed over extended periods of time. They also have a more uniform accuracy over an entire specified temperature range. Two sensors are interchangeable. One of the sensors has a 12-feet (2 m) cable, which makes it easy to reach the external medium. For customized sensor cable length, please
contact us.
Specifications
|
Temperature Control Range
|
-50°C ~ 105°C, -58°F ~ 221°F
|
|
Temperature Resolution
|
0.1°C (between -9.9°C ~ 99°C)
1°C (between -50°C ~ 10°C and 100°F ~ 120°C)
0.1°F (between -9.9°F ~ 99.9°F )
1°F (between -58°F ~ 10°F and 100°F ~ 248°F)
|
|
Temperature Accuracy
|
0.5°C or 0.9°F
|
|
Temperature Control Mode
|
On/Off Control; Heating and Cooling.
|
|
Temperature Control Output
|
10 A, 120 V or 240 V AC *
|
|
Audio Alarm
|
High and Low Limit
|
|
Sensor Type
|
Silicon Band Gap Sensor
|
|
Sensor Size
|
0.24" O.D. (6.0 mm), 2" long (50 mm)
|
|
Operating Temperature
|
-20°C ~ 50°C (0°F ~ 120°F)
|
|
Dimension
|
3.6'’ x 5.5'’ x 1.8'’ (91 x 140 x 46 mm)
|
|
Input Power
|
85 ~230 VAC, 50Hz/60Hz
|
|
Sensor1 Cable Length
|
6 ft (2 m)
|
| Sensor2 Cable Length |
12 ft (4 m) |
|
Power Cable Length
|
3ft (1m)
|
|
Warranty
|
One (1) year limited warranty
|
Notes:
[PDF] Instruction manual for TD340.
[PDF] Instruction manual for TD330/TD320.
[Link] Replacement sensor: TD-SENSOR.
[Link] Extension cable for sensor: TD-Cable3.
This product was added to our catalog on Tuesday 18 March, 2014.
