RSA-TTD1A Room Digital Temperature Transmitter/Controller

Applications & Features

• RSA-TTD1A series are designed for indoor environment temperature measurement and control
• High performance digital temperature sensor and digital technology applied, ensure accurate measurement, fast response & good long term stability
• Multiple outputs, over voltage and reverse polarity protection, high reliability and anti-interference capability
• Optional relay for alarm or ON/OFF control
• Light and state of art housing, easy installation
• Wide working temperature range and fast response
• All electrical terminals are on the inside bottom, avoid any possible destroy to PCB when wiring
• LCD & function keys can set parameters and calibrate
  output, thus the product becomes a stand alone controller

Specifications

Sensor: Digital temperature sensor
Range: See models
Output: 4'20mA (3 wires) &0'10VDC, RS485/ModbusNote 1
Output Load: ≤500Ω (current), ≥ 2KΩ (voltage)
Relay: 1×SPST, 3A/30VDC, 3A/250VAC
Accuracy: ≤±0.5°C@0'85°C,see accuracy curve
Power: 16'28VAC/16'35VDC
Display & Keys: Optional LCD display and function keys, see details on LCD & Keys operation
Display Resolution: 0.1°C
Work Temp.: 0'70°C, 0'95%RH (Non cond.)
Storage Temperature: -30'70°C
Housing: ABS+PC
Protection: IP30
Approval: CE
Optional Accuracy: 0.25°C @ -20 ~105°C (Add “H” after part number)
Accuracy curve:

Models



Note 1: the communication protocol is Modbus RTU
Note 2: Refer to working environment ambient guide GB/T4200 and WBGT etc, the relay default settings are ON-30.0°C/OFF-29.5°C,and also can be set through LCD & function keys.

TCL Low Temperature Controller

Applications & Features

• RSA-CTB has a long sensing capillary filled with vapor. When any part of the component is below the temperature set point, the contact will actuate
• It is applicable to cold water coil or other surface temperature alarm for liquid pipe or air in duct
• Contact actuate quickly at the set point
• Readable scale, easy to operate the set point