Description
Meter and controller of water quality parameters.
DULCOMETER® diaLog DACb is a compact system for water analysis.
In addition to controlling the circuit between the DULCOTEST® sensors and the ProMinent® metering pumps.
Everything you require for the reliable treatment of service and process water in industry, as well as drinking and swimming pool water.
Advantages of the meter and controller
- Easy to operate thanks to a display that provides very visual information.
- The equipment includes 2 measuring and control channels included in the basic equipment.
- All parameters to be analyzed can be configured.
- Remote LAN access via integrated web server to view the system from anywhere.
- Individual adjustment to different operating states, e.g. day and night operation.
- Accurate monitoring of adjustment variables to prevent incorrect dosing.
Dulcometer applications:
- Meter and regulator of water parameters in industrial and process water treatment plants.
- Monitoring of drinking water parameters.
- Measurement of pH and disinfection parameters in the food and beverage industry.
- Measurement and control of pool water quality parameters.
- Chlorine dioxide concentration monitoring in facilities for legionella control and prevention, e.g. in schools, hotels and hospitals.
- Meter for disinfection parameters of irrigation water and gardening systems.
- Configuration of the meter with the parameters to be measured (Not all parameters can be measured at the same time).
Technical information
- Measurement of: pH, redox, chlorine, chlorine dioxide, chlorite, bromine, conductivity, peracetic acid, hydrogen peroxide, ozone, dissolved oxygen and fluoride (Select the parameters to be measured, not all parameters can be measured at the same time).
- Installation and protection: Universal housing (wall, pole or patch panel installation) IP 67 and IP 66.
- Control: 2 measuring and control channels, each with one-way PID controller (optional two-way PID controller).
- Very low voltage 24 V DC power supply, for example, can be used for solar cells or for wet areas in water treatment plants.
- Temperature compensation for pH and for chlorine dioxide process sensor CDP, pH compensation for chlorine.
- Digital inputs for control signal processing, e.g. limit switches for water metering, remote shutdown control and for monitoring fill levels in chemical tanks.
- Actuator outputs: for electronic metering pumps and solenoid valves.
- Disturbance variable processing: simple regulation of water parameters in the water flow by flow processing in the regulation algorithm
- It adapts the controller setpoint to process conditions by means of a mA signal from a PLC or, with higher requirements, by means of the fieldbus option.
Panel model available:
(Includes controllers, cables, sensors, sensor holders and mounting panel):
Code |
Manufacturer’s code |
Description |
|---|---|---|
P_161273 |
PMCC-DACB |
Measuring and Control Panel DACb Chlorine + PH |
Technical Data
Measuring quantities and measuring ranges |
Connection type mV:
pH: de 0,00 a 14,00 Redox voltage: -1500 to +1500 mV mA connection type (amperometric measurands, sensor-dependent measuring ranges): Chlorine Chlorine dioxide Chlorite Bromo Ozone Hydrogen peroxide (PER sensor) Hydrogen peroxide (PEROX sensor PEROX converter PEROX V2 No. 1047979) Peracetic acid Dissolved oxygen mA connection type (potentiometric measurands, transmitter-dependent measuring ranges): pH Redox voltage Fluoride: by means of VA module and function expansion package 3 and 4 Conductivity mA by CCT sensor 1-mA-20 mS/cm Temperature: by means of Pt 100/Pt 1000, measuring range 0 to 150° C |
Resolution |
pH: 0.01
Redox voltage: 1 mV Temperature: 0.1° C Amperometry (chlorine, etc.) 0.001/0.01 ppm, 0.01% vol., 0.1% vol. |
Accuracy |
0.3 % referred to the final value of the measuring range |
Measurement input |
pH/Redox (input resistance > 0.5 x1012 Ω) |
Temperature compensation |
Pt 100/Pt 1000 for pH, Chlorine Dioxide (CDP) and Fluoride sensors |
Temp. correction area |
0 to 100 °C |
pH correction range for chlorine |
CLE 3 and CLE 3.1 sensors: 6.5 to 8.5, CBR sensor: 6.5 to 9.5 |
Disturbance variable |
Flow rate via 0/4 … 20 mA signal or contact hydrometer, 1 – 500 Hz. The multiplicative disturbance variable can affect all channels, the additive disturbance variable only one. |
Regulatory behavior |
P/PID control |
Regulation |
2 or 3 two-way regulators |
Analog outputs |
2 (3) x 0/4 to 20 mA galvanically isolated, capacitive load max. 450 Ω, adjustable range and assignment (measurands, correction and adjustment variable) |
Adjustable outlets |
2 (4) pulse frequency outputs for controlling metering pumps
2 relays (limit value or pulse length regulation) |
Alarm relay |
250 V ~3 A, 700 VA, changeover contact type |
Digital control inputs |
4 (7) as remote inputs for pause functions, measuring water regulation/error, parameter set switching, chemical tank level control, etc. |
Electrical connection |
100 – 230 V, 50/60 Hz, 25 VA, optionally 24 V DC |
Fieldbus connection |
PROFIBUS®-DP, Modbus RTU, PROFINET |
Ambient temperature |
0 to 50 °C (for indoor installation or with protective housing) |
Type of protection |
Wall mounting: IP 66 and IP 67 (NEMA 4X)
Mounting in switchgear cabinet: Switchgear cabinet with protection IP 54 |
Certificates and approvals |
CE and MET (corresponding to UL according to IEC 61010) |
Housing material |
PC with flame retardant protection |
Dimensions |
250 x 220 x 122 mm (W x H x D x D) |
Weight |
1.3 kg |
Basic standard equipment
- PID controller with pulse frequency metering pump control for 2 metering pumps.
- 2 analog outputs for measured value, correction value or adjustment variable (depending on optional equipment).
- 4 digital inputs for water metering error detection, level switch, pause and parameter switching.
- 2 power relays programmable as limit value output, cycle timer, real-time timer or as discontinuous adjustable output (depending on optional equipment).
- Selection of analysis and language parameters during start-up.
- Temperature compensation of pH, chlorine dioxide (CDP) and fluoride measurement via Pt100/Pt1000.
- 24 operating languages: all European languages plus Chinese, Russian, Thai, and Korean. The operating language is selected during start-up and can be changed at any time using a key combination. The selection of the documentation language is made by means of the identification code. In addition, a data carrier containing the remaining languages is provided.
- Storage and transmission of device parameters via SD card.
- Calibration and event recorder (no SD card, data is stored in the controller).
- Processing of disturbance variables (flow) by frequency (contact hydrometer).
- Possibility of software function expansion by activation key or firmware update.
Description of the possible measurement quantities as basic measurement quantities:
VA module sensor input mV/temperature + mA:
- 1 sensor input for pH or redox sensor and temperature sensor Pt100/Pt1000
- 1 sensor input for connection of chlorine sensors such as CBR or pH converter pHV1 and fluoride, including disturbance variable or pH compensation for chlorine.
AA module mA/mA sensor input:
- 2 sensor inputs for connecting chlorine sensors such as CBR, or the pH converter pHV1, including disturbance variable or pH compensation for chlorine.
VV module mV/mV temperature sensor input:
- 2 sensor inputs for connecting pH and redox sensors and Pt100/Pt1000 temperature sensors, p. e.g., of types PHER, RHER, PHEI, RHEIC, Pt100SE
L3 module conductivity sensor input temperature:
- 2 sensor inputs for connection of conductive conductivity sensors and temperature sensors Pt100/Pt1000, p. e.g., of the types LFT, LMP
Optional equipment for third pH measurement channel
Package 2
- pH control up to 3 orders of magnitude in mV or mA, with or without pH compensation for chlorine, without external setpoint value via analog signal for channel 1, without flow disturbance variable via channel 1
- Third analog output.
- Control of two other metering pumps.
Package 3
- Complete third measuring and control channel, measuring range as desired, with PID controller.
- Third analog output for measured value, correction value or adjustment variable (depending on optional equipment).
- Three additional digital inputs, p. e.g. for level control, pause and measuring water alarm of channel 2.
- Temperature compensation of pH, chlorine dioxide (CDP) and fluoride measurement.
Package 4
- Combination of packages 2 and 3 (only one channel available for amperometric sensors for disturbance variable processing in mA).
Communication options
- Measurement data logger with SD card.
- Visualization of measurement data via web server over LAN, PC/tablet and web browser.
- PROFIBUS®-DP, Profinet and Modbus RTU.
Hardware extension
- RC protection circuit for power relay: Protects the power relay when inductive loads (e.g. solenoid valves or motors) are to be energized. Not available for 24 V DC supply.
