Transmitter PID controller DULCOMETER diaLog C

universalserialModbus

Overview
The DULCOMETER diaLog C is a 1‑channel bidirectional PID controller or transmitter designed for industrial water and process-water measurement and control. It regulates a measured variable in both directions to a setpoint and supports use as a transmitter or as a single-channel two‑side controller. The device integrates temperature compensation, digital inputs for disturbance variables and versatile communication options for system integration.

Your benefits

• Bidirectional control of a measured variable for increasing or decreasing to setpoint
• Simultaneous control of two metering pumps via two pulse frequency outputs for greater dosing flexibility
• Dynamic disturbance handling (additive or multiplicative) through digital input for stable processes
• Versatile integrated output relay for alarm, limit switching or direct control of motor-driven pumps and solenoid valves
• Intuitive operation with keypad, multi-colour display and multilingual menu navigation
• Configuration, data transfer and remote maintenance via Modbus RTU and other communication options

Field of application

• Measurement of turbidity parameters paired with DULCOEYE LT low-turbidity sensors
• Measurement and control of water parameters in industrial and process water treatment systems
• Monitoring of individual drinking-water parameters
• Measurement and control of hygiene-related water parameters
• Universal single-parameter measurement and control for common ProMinent measured variables

Technical details

• Mode: transmitter or single-channel two-side PID controller
• 2 pulse frequency outputs for dual-pump control
• 1 analogue output 0/4–20 mA
• 2 digital inputs; optional measuring-module inputs: mV/temperature, serial, mA
• 1 configurable output relay (alarm / limit / control)
• Wall, pillar (IP66/IP67) or control-cabinet (IP54, 1/4 DIN) mounting

Technical data
Inputs and outputs:
Sensor input max. 2 W; 2 × contact input 12 V / 50 A, galvanically isolated
Outputs: power relay 24 V DC … 230 V AC, galvanically isolated; current output 4 … 20 mA, galvanically isolated; 2 × Optomos output max. 60 V, 2 A, 0.25 W, galvanically isolated; digital output for sensor bypass BAMa 5 V / 25 mA (not galvanically isolated); 1 × kV ESD (HBM).

Environmental and electrical:
Storage temperature: -20 … 70 °C
Operating temperature: -10 … 60 °C
Relative humidity: max. 90 %
Enclosure rating: wall/pillar IP66 / IP67; control cabinet IP54, 1/4 DIN
Overvoltage category: II
Sound pressure level max.: 27 dB(A)
Electrical connection: 100 – 240 V, 50/60 Hz
Power consumption: 14 W
Communication interface: Modbus RTU