900 Series Monitor/Controllers include everything you need to simplify water quality management in industrial, municipal, and commercial operations in one compact (1/4 DIN) user-intuitive instrument. Configuration is simple with easy-to-follow on-screen prompts.

Monitor 7 critical water quality parameters simultaneously from easily configured inputs: 2 Conductivity/Resistivity/TDS/Salinity; 1 pre-amplified pH/ORP; 1 BNC pH/ORP; 1 0-20/4-20 mA; 1 RTD Temperature; and 1 Flow/Pulse. % Rejection is available as a derived value.

Outputs include up to 3 relays; 2 remote alarms; 1 0-20/4-20 mA; 1 0-5/0-10 VDC; and 1 RS-485 ASCII Serial Output.

Touchscreen interface makes configuration quick and easy.

Digital calibration ensures highest degree of accuracy.

Flow Switch input can disable all relay outputs when triggered by loss of flow.

0-20/4-20 mA input allows user-defined 0 to full scale values and units of measure for a wide array of sensor types.

Relays output to any user-supplied control equipment requiring up to 250V each and can trigger on any input parameter.

0-20/4-20 mA output can transmit a signal for any input parameter and can be set to power any instrument receiving signal if desired.

0-5/0-10 VDC can be scaled to optimize resolution and can output to a recorder, PLC, SCADA system, etc. 0-1 VDC is possible with optional resistor.

User-specified hysteresis value prevents chatter, or let the 900 Series automatically determine it for you.

3 Temperature Compensation Standards for greatest accuracy in diverse applications (KCl, NaCl, and 442 Natural Water^TM)

User-adjustable Temperature Compensation (0 - 10%/°C); can be disabled for non-compensated readings

Administrator and Operator password protection levels prevent unwanted tampering.

Electronic or wet calibrations are super easy to perform.

Brightly colored red, yellow, or blue LCD background instantly alerts user to solution status.

Display settings allow user to select input channels on screen, brightness, night mode, and timeout to return to measurement mode from settings screens.

Plus get Myron L technical support for the life of the product!

SPECIFICATIONS:

Conductivity Measurement Range: 0 μS — 200 mS

Conductivity Accuracy: ± 1% of reading

Conductivity Resolution: 0.01 for < 100 μS; 0.1 for < 1000 μS; 1 for < 10,000 μS; 0.01 for < 100 mS; 0.1 for ≤ 200 mS

Conductivity Automatic Temperature Compensation: 0 — 71 °C; 32 — 160 °F

Conductivity Adjustable Temperature Compensation: 0 — 10%/ °C

Conductivity/TDS Ratios Preprogrammed: KCl, NaCl, 442™

Adjustable Conductivity/TDS Ratio Factor: 0.20 — 7.99

TDS Measurement Range: 0 ppm — 200 ppt

TDS Accuracy: ± 1% of reading

TDS Resolution: 0.01 for < 100 ppm; 0.1 for < 1000 ppm; 1 for < 10,000 ppm; 0.01 for < 100 ppt; 0.1 for ≤ 200 ppt

TDS Automatic Temperature Compensation: 0 — 71 °C; 32 — 160 °F

TDS Adjustable Temperature Compensation: 0 — 10%/ °C

Conductivity/TDS Ratios Preprogrammed: KCl, NaCl, 442™

Adjustable Conductivity/TDS Ratio Factor: 0.20 — 7.99

Resistivity Measurement Range: 10 KΩ — 40 MΩ

Resistivity Accuracy: ± 1% of reading

Resistivity Resolution: 0.01 for < 100 kΩ; 0.1 for < 1000 kΩ; 0.01 for < 10 MΩ; 0.1 for ≤ 40 MΩ

Resistivity Automatic Temperature Compensation: 0 — 71 °C; 32 — 160 °F

Resistivity Adjustable Temperature Compensation: 0 — 10%/ °C

Salinity Measurement Range: 0 ppm — 200 ppt

Salinity Accuracy: ± 1% of reading

Salinity Resolution: 0.001 for < 10 ppt; 0.01 for < 100 ppt; 0.1 for ≤ 200 ppt

Salinity Automatic Temperature Compensation: 0 — 71 °C; 32 — 160 °F

Salinity Adjustable Temperature Compensation: 0 — 10%/ °C

Conductivity/TDS Ratios Preprogrammed: KCl, NaCl, 442™

Adjustable Conductivity/TDS Ratio Factor: 0.20 — 7.99

pH Measurement Range: 0 — 14 pH

pH Accuracy: ± 0.01 pH

pH Resolution: 0.01 pH

pH Automatic Temperature Compensation: 0 — 71 °C; 32 — 160 °F

pH Adjustable Temperature Compensation: On/Off

ORP/mV IN Measurement Range: ± 2000 mV

ORP/mV IN Accuracy: ± 2 mV

ORP/mV IN Resolution: 1 mV

Temperature Measurement Range: 0 — 250 °C

Temperature Accuracy: ± 0.1 °C

Temperature Resolution: 0.1 °C/F