Zema Automation And Controls Private Limited

• PID, ON/OFF, programmable PID or manual control are available.
• PID auto-tuning
• Programmable control for 8 patterns and 8 steps in each pattern.
• 12 modes ready for alarm output
• °C or °F for the temperature unit
• Built-in RS-485 communication interface which supports Modbus ASCII/RTU and baud rate of up to 115,200bps.
• Extendable to maximum 7 DTC2000 digital controllers
• Supports synchronous communication protocol and auto ID setup function.
• Supports various selections of input/output modules, e.g. relay output, voltage pulse output, current output, analog voltage output, parameter display and setup.
• Supports CT functions, over-current and off-line alarm

We are offering a wide range of Temperature Controllers.
Compared with DTA series, DTB is additionally equipped with linear voltage signal output and dual output control, capable of executing heating and cooling controls simultaneously in a temperature control system and fast reaching the target temperature.

Application:

• Blower coil pipe in central air-conditioning system, heating system.

Specification:

• PID / On-Off / manual input / programmable control modes
• 2 groups of outputs to auto-tuning 2 groups of PID parameters
• Able to connect to various thermocouples (B, E, J, K, L, N, R, S, T, U, TXK), platinum RTD (PT100, JPT100), analog current (0 ~ 20mA, 4 ~ 20mA) and linear voltage (0 ~ 5V, 0 ~ 10V)
• Maximum 3 groups of alarm switches are available, with 18 alarm modes each
• Celsius or Fahrenheit temperature display
• 2 key lock functions (1. lock all keys; 2. lock only function keys, up/down keys are still workable)
• Panel sizes: 4824, 4848, 4896, 9696
• Built-in RS-485 communication interface (Modbus ASCII, RTU, baud rate: 2,400 ~ 38,400)
• Sampling time of thermocouple/platinum RTD: 0.4 second/time; sampling time of analog input: 0.15 second/time
• Programmable logic controller is able to set up 64 sets of temperature and control time.
• Optional CT (wire breaking detection) function, an alarm output
• Optional Event function, using PLC or switches to switch between 2 different set temperatures.
• Optional Valve function, adjusting the open/close of the valve by the output value