Single-Channel Measuring and Control Instrument DULCOMETER® Type D1Cb

A safe, comfortable, and clear operation is guaranteed thanks to the large, illuminated graphic display, full text operating menu in 15 operating languages, and pH sensor monitoring.

Always the appropriate controller:
Both sensor connection types mA and mV in one single unit
Subsequent activation of functions via activation key
For connection type standard signal:
all other measured variables such as chlorine, bromine, chlorine dioxide, chlorite etc. and pH, ORP/Redox and conductivity via mA
For mV: switching capability between pH and ORP/Redox
Plain text user guidance in 15 operating languages in the controller
Control of 2 metering pumps via pulse frequency
2 power relays for solenoid valve control, limit value monitoring or timer function
Large, illuminated graphic display with bargraph
1 analogue output 0/4 … 20 mA (measured value/controller output)
Extended range voltage supply: 90-253 V, 50/60 Hz
Automatic buffer recognition for pH
pH sensor monitoring
Calibration timer, calibration log book
Operating hours counter
Metering time monitoring with deactivation of the controller output if time is exceeded

Application focuses

Drinking water treatment
Waste water treatment
Cooling water treatment
Boiler feed water treatment
Neutralisation

Technical Data

Measuring ranges	Type of connection mV:
	pH 0.00 … 14.00 ORP – 1,000 … +1,000 mV
	Type of connection mA:
	Chlorine, chlorine dioxide, chlorite, bromine, ozone, hydrogen peroxide, peracetic acid, dissolved oxygen, pH, ORP/Redox, conductivity, temperature
Measuring input pH	input resistance > 0.5 x 1012 Ω
Measuring input mA	0/4 ... 20 mA standard signal input
Correction variable	Temperature via Pt 100/Pt1000
Correction range temp.	0 … 100 °C
Disturbance	Frequency
Control modes	P/PID controlling
Controlling	two-way control
Signal current output	1 x 0/4-20 mA galvanically isolated
Adjustable output	2 pulse frequency outputs for metering pump control 2 relays (solenoid valve control, limit value or pulse length)
Analogue input	1 x 0/4 ... 20 mA
Alarm relay	250 V ~3 A, 700 VA contact type, changeover
Electrical connection	90 - 253 V, 50/60 Hz
Ambient temperature	Wall mounted: -5 … 50 °C
System of protection	Wall mounted: IP 65
Dimensions	Wall mounted: 189 x 200 x 76 mm (WxHxD)