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ACM-Z Conductivity Transmitter
Brand: KOBOLD Instruments, Inc
The KOBOLD ACM-Z compact microprocessor transmitter/controller measures and controls the conductivity in aqueous solutions. It is available as a panel-mounted device according to DIN 43 700 or in a field housing.
Its simple operation and user-friendly programming allow universal service in almost all areas of industrial metrology.
The transmitter is fitted with two Analog and two binary inputs. The first Analog input is suited for connecting conductive conductivity measuring cells with cell constants 0.01; 0.1; 1.0; 3.0 and 10.0 1/cm, depending on the desired measuring range (see table "Cell constant and measuring range").
A Pt 100 resistance thermometer may be connected to the second Analog input.
The device has two 4-position, 7-segment displays for indicating conductivity (red) and temperature (green). The display show comments during programming.
The two controller relays can be configured as limit value and/or pulse lengths or pulse frequency controllers with P, PI, PD or PID structure. A maximum of two relay make contacts, one binary output and one Analog actual-value output is available.
To simplify programming and operation, controller parameters and configuration data have been assigned to different levels.
- User Level
- Parameter Level
- Configuration Level
The levels are secured with passwords against unauthorized access. Membrane keys ensure simple and user-friendly operation. Both LEDs show parameter symbols and values.
Features- Measuring range 0 to 200 mS/cm
- Display of conductivity ( in μS/cm or mS/cm) and temperature
- Easy to configurate
- Cell constants available: 0.01 / 0.1 / 1.0 / 3.0 / 10.0 1/cm
- Compact design
- Calibration procedure for temperature coefficient of the solution and the relative cell constant
- Analogue actual-value output scaleable
- External setpoint value changeover possible
- Two relays programmable as a controller
- Two binary inputs
- One binary output (alarm contact or temperature limit contact)
Specifications
Brand
Ambient Temperature Range
- -10° to 55° C (14° to 131° F)
Applications
- Boiler Feed Water Monitoring
- Cleaning & Purification
- Control of Concentration of Acids & Lyes
- Cooling Water System
- Desalting of Cooling Water
- Detection of Phase Boundaries
- Inspection of Drinking Water Treatment
- Inspection of Sea Water Desalinization
- Monitoring & Assessing Ion Exchanger
- Monitoring Bottle Cleaning Plants
- Quality Control for Drinks
- Reverse Osmosis Systems
- Wastewater Inspection in Clarification Plants
Consumption
- Approximately 8 VA
Electrical Connectors
- DIN 46244 / A, 4.8 mm x 0.8 mm Gold-Plated Flat Connector
Electrical Contacts
- N/O or N/C Programmable
Enclosure, Body Material
- ABS - Base Material (Panel Mounting)
- Conductive Plastic - Panel Mounting
- Powder-Coated Aluminum - Field Housing
Environmental Protection
- IP20 - Rear (Panel Housing)
- IP65 - Panel & Field Housing
Humidity
- ≤ 95 % Relative Humidity, Non-Condensing
Input
- Pt100 / Pt1000 2 or 3-Wire Circuitry
Load Impedance
- ≥ 250 ohms - Binary Output
- ≥ 500 ohms - Actual Value Analog Output
Measuring Error
- < 0.25 % ± 50 ppm/K - Output Signal
- ≤ 0.25 % of Measuring Range
Mounting
- DIN 43700 - Panel Mounting
Mounting Position
- Any Orientation
Output
- 0(2)-10 V - Actual Value Analog Output
- 0(4)-20 mA - Actual- Value Analog Output
- 0/5 V - Binary Output
- 3 A at 250 Vac - Switching Capacity
Power Requirement
- 110-240 Vac, 10 % / -15 %
- 20-53 Vac/dc
- 48-63 / 0 Hz
Resolution
- > 15-bits - A/D Converter
Response Time
- 210 milliseconds - Sampling Interval
Storage Temperature
- -40° to 70° C (-40° to 158° F)
Temperature Effect
- ≤ 0.1 %/10 K - Influence of Ambient Temperature
- ≤ 0.15 %/10 K - Influence of Ambient Temperature
Temperature Range
- -50° to 250° C (-58° to 482° F) - Temperature Display
- Boiler Feed Water Monitoring
- Cleaning & Purification
- Control of Concentration of Acids & Lyes
- Cooling Water System
- Desalting of Cooling Water
- Detection of Phase Boundaries
- Inspection of Drinking Water Treatment
- Inspection of Sea Water Desalinization
- Monitoring & Assessing Ion Exchanger
- Monitoring Bottle Cleaning Plants
- Quality Control for Drinks
- Reverse Osmosis Systems
- Wastewater Inspection in Clarification Plants