Process Control Instruments, Field Devices and Industrial Automation
ENDRESS+HAUSER CA80CR-AAAF1C101 (1)
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EH Liquiline System CA80CR Colorimetric analyzer for online measurement of Chromate (Cr(VI)) with Memosens technology. 2 0/4-20 mA outputs, up to 2 measuring channels and up to 4 digital sensor inputs. CSA Approval.

Part# with Options:        CA80CR-AAAF1C101
Price with Options:        Please Email us your request for quote   

Options:    

Approval
(1) Approval for EH CA80XX & CAT8X0
Parameter & Measuring Range
(2) Parameter & Measuring Range for EH CA80CR
Sampling Point
(3) Sampling Point for EH CA80AM/PH/CR/FE/NO
Sample Transfer
(4) Sample Transfer for EH CA80AM/PH/CR/FE/NO
Housing & Material
(5) Housing & Material for EH CA80AM/PH/CR/FE/NO/TP
Cable Entry
(6) Cable Entry for EH CA80XX & CAT820
Power Supply
(7) Power Supply for EH CA80AM/PH/CR/FE/NO

  Availability 3 Weeks  ]

Integrated controller with up to 2 measuring channels and digital Memosens technology

Application
  • Optimizing cleaning performance in industrial wastewater treatment plants
  • Monitoring of drinking water
  • Monitoring of membrane filtration systems
  • Monitoring of limit values for the discharge of industrial wastewater
Your benefits
  • Easy upgrade to measuring station by connecting with up to four Memosens sensors
  • Automatic calibration and cleaning
  • Low maintenance costs thanks to long reagent life
  • Digital communication for remote access
  • Two-channel device available
  • Digital fieldbuses (Profibus DP, Modbus TCP, Modbus RS485 and Ethernet IP) and web server
Colorimetric measuring principle

After application-specific sample preparation, some of the permeate is pumped into the mixing/ reaction chamber. The specific color reagent is metered exactly in a defined mixture ratio. The chemical reaction causes the characteristic change in the color of the sample. The multispectral photometer measures the level of absorption by the sample or the stain solution at defined wavelengths. The analyzed wavelengths, and their relationships to one another, are parameter- specific.

Based on proportionality the amount of light absorption is a direct indicator of the concentration of the parameter under analysis in the sample. To compensate for any interference influences resulting from turbidity and fouling, as well as from the deterioration and aging of the LEDs, a reference measurement is performed before the actual measurement. This reference signal is subtracted from the measuring signal. The temperature in the photometer is kept constant to ensure a reproducible reaction that takes place with a short period of time.

Chromium and chromate

Chromium occurs in different oxidation states, of which only the trivalent (Cr 3+ ) and the hexavalent (chromate, CrO 42- and dichromate, Cr 2 O 72- ) are of significance in process applications. While Cr(VI) is recognized as a carcinogen, Cr(III) is only slightly toxic and is an essential trace element in protein synthesis. National standards stipulate limit values for chromate concentration. The German drinking water ordinance, for example, stipulates a limit value for total chromium of 50 μg/l. Separate standards apply to industrial wastewater. The current limit value for tanneries is 2 mg/l, and for electroplating plants the limit value is 0.1 mg/l.

Measuring principle

Colorimetric

Characteristic

Analyzer for Chromate (Chrome VI) in aqueous solutions

Size

Cabinet

793 x 530 x 417 mm

31.22 x 20.87 x 16.42 in

Stand housing

1693 x 530 x 417 mm

66.65 x 20.87 x 16.42 in

Design

Open design, cabinet and stand housing

High-Performance plastic ASA-PC, additional stand coated steel

Process temperature

4 ... 40 C (41 ... 104 F)

Ambient temperature

5 ... 40 C (41 ... 104 F)

Process pressure

at atmospheric pressure, < 0.2 bar absolute

Sample flow rate

min. 5ml/min (0,17 fl.oz/min)

Consistency of the sample

Suspended solids content

Turbitity < 50 NTU, aqueous, homogenized

Specials

Easy upgrade to measuring station with up to four digital Memosens sensors

Automatic calibration and cleaning

User-configurable measuring, cleaning and calibration intervals

Optional cooling module for longer reagent shelf life

2 channel version optional

User-definable measuring ranges

Modular design for easily extensible functionality

Digital communication for remote access

Application

Limit value monitoring of Chromate in potable water and waste water.
Common applications are industrial waste water Monitoring for tanneries and the galvanic industry.

Power supply

100 ... 120 VAC / 200 ... 240 VAC 10%

24 VDC 10%

50 1 or 60 1,2 Hz

Output

2x 0/4 ... 20 mA

Modbus RS485/TCP (optional)

Ethernet (optional)

Alarmrelay

Input

1 or 2 measuring channels

1 ... 4 digital sensor inputs for sensors with Memosens protocol (optional)

Measurement range

0,03 ... 2,5 mg/l Cr(VI)
0,2 ... 5,0 mg/l Cr(VI)

Consumables

Reagents and standard solutions CY80CR as well as cleaner CY800 are necessary for the operation. Regular maintenance is done with the parts of the maintenance kit CAV800.

Export Info
Made inGermany

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