PH analyzer or RedOx (ORP) or CL (ppm) AG-SELECT B1

PH / RedOx / Cl fluid analyzer (one indicator per choice) of the AG-SELECT B1 series.

AG-SELECT B1 is a high-precision liquid analyzer for measuring electrochemical parameters: pH, RedOx (ORP), free (total) organic or inorganic chlorine to choose from.

Liquid analyzers (controller) AG-SELECT B1 are equipped with a color LCD with backlight and include a Russified menu, made in a plastic case for wall mounting.

The AG-SELECT B1 fluid analyzer contains galvanically isolated electronic components that provide a high level of immunity to electromagnetic interference.

Name Article Price without VAT, (€)
AG-SELECT B1, 90-260V Liquid Analyzer CXB5000101 625
AG-SELECT B1, 12V DC - 24V DC / AC Liquid Analyzer CXB5000111 688


  • One measurement parameter to choose from: pH or Rx or free / total chlorine or PPM measurement.
  • Alarm for continuous dosing time.
  • Alarms for limit concentrations of MIN / MAX levels.
  • Menu type selection: Standard / Expert.
  • Russified menu.
  • Delayed start, delayed measurement.
  • Password protection of the settings made.
  • The controller has a dosing control mode: constant ON / OFF and PROP. proportional.
  • Two independent outputs ON / OFF (proximity switch) for each measured parameter.
  • Two independent 4-20 mA outputs per Set Point (SETPOINT).
  • The fluid analyzer supports the connection of a flow sensor, a reagent level sensor, as well as a PT100 temperature sensor (sensors are not included).
  • Automatic temperature compensation (when connecting the PT100 sensor).
  • The controller has a clock and timer for daily or weekly programming of operating modes.
  • Power supply voltage as standard: 90-260 VAC 50/60 Hz; on request: 12-24 V DC; 24 V of alternating current.
  • Power consumption: 15 W (1A peak current).
  • Operating temperature range: 0 - 40 ° C.
  • Dust and moisture protection class: IP65.
  • pH range: 0 … 14 (resolution 0.01pH).
  • Measuring range RedOx (ORP): -1000 ... +1400 mV (resolution 1mV).
  • Range of measurement of chlorine (free or residual): 0-2 mg / l; 0-20 mg / l; 0-200 mg / l; 0-2000 mg / l (resolution 0.001 / 0.01 / 0.1 / 1 mg / l).
  • Range of measurement in PPM mode: 0-2 PPM; 0-20 PPM; 0-200 PPM; 0-2000 PPM (resolution 0.001 / 0.01 / 0.1 / 1 PPM).
  • Measured temperature range: 0-100 ° C (resolution 0.1 ° C).
  • External (installation) dimensions: 200x160x90 mm.

The AG-SELECT B1 fluid analyzer has the following outputs:

  • ON / OFF relay output (NO / NC proximity switch) for controlling dosing pumps or other ON / OFF actuators (max. current 16A with resistive load; 3A with inductive load).
  • Two independent ON / OFF relay outputs per measurement channel.
  • Current output (analog): 4-20 mA (dynamic 0..500 Ω).
    Two independent 4-20 mA current outputs per measurement channel.
  • TTL output: 0 - 999 pulses / min. Two independent TTL outputs per measurement channel.
  • Alarm relay output ALARM ON / OFF (contactless relay NO / NC), alarm for continuous dosing time and for limit concentrations of MIN / MAX levels
    (max. current 5A with resistive load; 0.7A with inductive load) .
  • AUX ON / OFF relay output for timer control of actuators (scheduled operation)
    (max. current 5A with resistive load; 0.7A with inductive load).
  • RS232 output (RS232 serial port) for PC connection or scheduling.

The AG-SELECT B1 liquid analyzer is equipped with the following inputs:

  • BNC input for connecting a signal from pH or RedOx or Chlorine sensors.
  • Input (plug type « Hirschmann ») for connection