Testomat MODUL Monochloramin (NH2CL) – Heyl Analysis Technologies

Testomat® MODUL Monochloramin (NH2CL)

The Testomat® MODUL Monochloramin (NH2CL) is an online analyzer that photometrically measures the content of monochloramine in process water. The device is used for continuous monitoring of process quality, for example in cooling circuits. Another application is the use in the environment of water treatment and drinking water plants, for process monitoring, as well as the monitoring of the decay behavior in cooling towers after shock chlorination.

The measuring range for monochloramine (NH2CL, calculated as Cl2) is 0 to 5 ppm (resolution 0.1). The instrument operates according to the DPD method based on EN ISO 7393-2. The analysis is performed by adding two reagents. After a reaction time of approx. 60 seconds (dosing and measuring time without rinsing time) the measuring result is available. Please note that the Testomat® Monochloramine (NH2CL) was developed for use in multiparameter systems or for connection to a higher-level control system. In addition to the 4-20 mA output for transmitting the measured values, this series has an RS232 interface for transmitting the measured values and error & status messages. Furthermore, all data are continuously recorded on the integrated SD card or optionally available SDHC card (2Gbyte) as a file in CSV format structured and can be used at any time for detailed observations.

The Testomat® MODUL CL convinces with new functionalities:

• RS232 interface for transmission of measured
values and error messages
• Carrying out the parameterization by means
of SD card or the software
• „Service monitor“ via mini-USB (device side)
to USB 2.0 (for example PC/notebook)
• Multilingual menu navigation of the software
in German, English, French, Dutch
• Firmware update via SD card
• Compact design
• Optimized water detection based on an optical
measuring method
• Integrated self-test with continuous monitoring
• Optimized reagent set for the measurement
of total chlorine (reduction from three
to two reagentscontinuous monitoring
• Automatic venting of the indicator line

Performance profile:

• High precision peristaltic roller pumps
• Reliable and low-maintenance operation
• Minimal reagent and water consumption
• Analog output 4 – 20 mA for transmission
of the measured values
• RS232 interface for transmission of measured
values & fault messages
• Common alarm output
• Optimized reagents:
– only 2 reagents for the determination
of monochloramine
• Optimized reagent containers:
– filling quantities are coordinated so that both
containers are used