Controller DULCOMETER D1Cb/D1Cc

The controller DULCOMETER D1Cb/D1Cc can be used for control tasks in potable water treatment, wastewater treatment and many other areas. Safe, convenient and clear, thanks to the large illuminated graphic display, plain text operating menu and pH sensor monitoring.

The Water Analysis Workhorse

The D1Cb/D1Cc controller is a 1-channel P/PID controller for the measured variables pH, ORP, chlorine, chlorine dioxide, chlorite, ozone, bromine, peracetic acid, hydrogen peroxide, fluoride, dissolved oxygen and conductivity via mA. The sensors for pH and ORP can be directly connected via coaxial cable or using the 4-20 mA sensor input. The controller can bidirectionally control the measured variables, monitor limit values and transmit the measured value via an mA output, e.g. to a PLC Programmable Logic Controller. The mA output can optionally also be configured as an interference variable output. The controller has two pulse frequency outputs to control two metering pumps (raise and lower). Two output relays can optionally be used as limit value relays or to control motor-driven pumps or solenoid valves. An alarm relay signals the occurrence of a fault. A digital input is used to switch off the control or to process a sample water limit contact by remote control. The impact of temperature on the measurements can be provided by temperature measurement or by manual input. Menu-driven operation is possible in 20 languages.

Your Benefits

  • Flexibility through free selection of variables from all measured variables
  • Safety through sensor monitoring of pH for glass breakage and line breakage
  • Flexibly upgradable, thanks to subsequent activation option of functions by means of an activation code
  • Various installation options: wall-mounted or installation in a control cabinet

Technical Details

  • Measured variables: pH, ORP, chlorine, chlorine dioxide, chlorite, bromine, conductivity, peracetic acid, hydrogen peroxide, ozone, dissolved oxygen and fluoride
  • Method of installation, degree of protection: D1Cb wall mounting IP 65, D1Cc control panel mounting IP 54, 1/4 DIN
  • Measurement: 1 measuring channel, temperature compensation for pH
  • Control: PID controller, bidirectional controller (e.g. with pH acid and alkali)
  • Control inputs: 1 digital control input

Technical Data

Measuring range

Connection type mV:
pH 0.00 … 14.00
ORP – 1000 … +1000 mV

Connection type mV:
Chlorine: 0.00…0.500/2.00/5.00/10.0/20.0/50.0/100.0 ppm
Chlorine dioxide: 0.00…0.500/2.00/10.0/20.0 ppm
Chlorite: 0.02..0.50/0.1…2 ppm
Bromine: 0.02…2.0/0.1…10.0 ppm
Ozone: 0.00…2.00 ppm
Hydrogen peroxide only with sensor PER1: 2.0…200.0/20…2000 ppm
Peracetic acid: 1…20/10…200/100…2000 mg/l
Dissolved oxygen: 0.1…10/0.1…20 ppm
pH: 0.00…14.00
ORP: 0…+1000 mV
Conductivity: 0…20/200/1000 mS/cm via mA transducer
Temperature: 0…100 °C via mA transducer

Resolution

pH: 0.01 pH
ORP: 1 mV
Amperometric analysis (chlorine etc.): 0.001/0.01 ppm, 0.01 vol. %

Accuracy

0.5% of the upper range value

Measurement input

pH/ORP (input resistance > 0.5 x 1012 Ω)

Correction variable

Temperature via Pt 100/Pt 1000

Min. temperature correction range

0 °C

Max. temperature correction range

100 °C

Control characteristic

P/PID control

Control

2-way control

Signal current output

1 x 0/4 – 20 mA electrically isolated
Max. load 450 Ω
Range and assignment (measured, correction or control variable) can be adjusted

Control outputs

2 pulse frequency outputs for controlling the metering pump
2 relays (limit value or pulse length)

Alarm relay

250 V ~3 A, 700 VA contact type, changeover

Electrical Connection

100 – 230 V, 50/60 Hz, 15 VA

Ambient temperature

-5 … 50 °C

Enclosure rating

Wall-mounted: IP 65
Control panel installation: IP 54

Dimensions

Wall-mounted: 198 x 200 x 76 mm (WxHxD) (D1Cb)
Control panel installation: 96 x 96 x 145 mm (WxHxD) (D1Cc)

Weight

0.8 kg