Pyxis DW-2100P Series Analyzer

The Pyxis DW-2100P is a turn-key, panel-mounted drinking water analyzer that measures ultra-low turbidity, free chlorine, pH and temperature on one 7-inch touch screen. It combines an ultra-low turbidity sensor from the LT-73X family (LT-739 or LT-739B) with the ST-765SS-FCL free chlorine and pH sensor, both housed in one FR-200 dual-sensor flow reservoir and pre-wired to the panel over RS-485 Modbus. Mikron Proses (Üsküdar, Istanbul) provides application consulting on choosing between the two versions for your drinking water, secondary water supply or process water point.

Drinking water · Secondary water supply → Send us your requirement

For background on the measurement, see the guide on turbidity in drinking water; a turbidity-only panel is described on the DW-739 page.

Two versions: US (EPA) and EU (ISO)

The DW-2100P is offered in two versions according to the light source and the standard it follows. The DW-2100P-US uses a warm white LED and complies with EPA-180.1; the DW-2100P-EU uses an 860 nm infrared LED and complies with ISO-7027. In both versions turbidity has a dual range of 0.001-10 / 10-40.00 NTU, accuracy of ±0.005 NTU or 2% (below 10 NTU) and repeatability of ±0.001 NTU or 0.5%. The free chlorine channel is the same in both: 0.01-5.00 ppm by the bare-gold electrochemical method, with ±0.01 ppm or 1% of full scale accuracy, compensated for pH up to 9.0, and the pH channel covers 0.01-14.00 with ±0.01 accuracy. The datasheet states that the chlorine measurement is consistent with DPD wet chemistry and meets EPA 334.0 and ISO 7393.

FR-200 flow reservoir

Both sensors sit in a single FR-200 dual-sensor flow reservoir, designed to calm the sample: air bubbles dissipate, suspended solids settle, and foam or other impurities commonly seen in drinking water influent are removed before the measurement. The minimum inlet pressure is only 0.05 MPa, so the panel suits sampling at the end of pipe networks and in secondary water supply.

Display, data logging and communication

The panel has a 7-inch color industrial capacitive touch screen with built-in 4 GB storage for about 1 million data and event records. Outputs include 4-20 mA analog, RS-485 Modbus-RTU and Modbus-TCP over an RJ-45 socket; a USB host port is used for data download and screen upgrade. Power supply is 96-260 VAC at 50-60 Hz with a 10 A fuse, 200 W.

Which version, US (EPA) or EU (ISO), suits your site depends on the reference standard you use. Send us your requirement and we will select the right version together.