M300 ISM 1-2 Channel Multiparameter Transmitter

Summary

Product identification

M300 ISM Multiparameter Transmitters for Innovative Liquid Analysis. Used with UniCond™ conductivity sensors with ISM.

Applications

• Pure and ultrapure water treatment for semiconductor rinsing, critical power/steam makeup and pharmaceutical waters.
• Semiconductor processing in rinsers and wet benches with precise resistivity measurement and temperature compensation.
• Power plant cycle chemistry and stator cooling monitoring with accurate temperature compensation for specific and cation conductivity, and pH.
• Pharmaceutical water monitoring to meet USP, EP, and JP conductivity requirements.
• Reclaim, recycle and wastewater treatment for contaminant detection, diversion, and neutralization.

Features

• Compact 1/4 DIN panel mounting with NEMA 4X, IP65 panel seal.
• Robust 1/2 DIN wall mounting with NEMA 4X, IP65 back cover.
• ISM Sensors are immediately recognized at installation.
• Measurements are available within seconds of connection.
• ISM capabilities communicate type, model, serial number, full calibration data plus historical data.
• On-line sensor diagnostics assure process surveillance.
• Historical calibration and exposure information improves preventive maintenance programs.
• Multiple languages: English, French, German, Italian, Spanish, Portuguese, Russian, Japanese.
• CE compliant, UL Listed for US and Canadian standards.
• "Plug and Measure" capabilities virtually eliminate operational errors.

Functional Specifications

Conductivity/Resistivity Ranges

• 0.01 Constant Sensor: 0.002 to 500 µS/cm (2000 ohm-cm to 500 Mohm-cm)
• 0.1 Constant Sensor: 0.02 to 50,000 µS/cm (20 ohm-cm to 50 Mohm-cm)
• Readout in equivalent S/m ranges is selectable.
• TDS Ranges (CaCO₃ and NaCl): Cover equivalent conductivity ranges.
• RO % Rejection: 0-100% (computed from two conductivity measurements).

Conductivity Resolution

• Four significant digits, auto-ranged.

pH, ORP Ranges

• -1.00 to 15.00 pH, -1500 to 1500 mV.
• Resolution: 0.01 pH, 1 mV.

Dissolved Oxygen Ranges

• 0-20,000 ppb; 0-20 ppm, 0-200% saturation.
• Resolution: 0.1 ppb.

Temperature Measurement Range

• -40 to 200 °C (-40 to 392 °F).
• Resolution: 0.1 °C.

Temperature Sensor Input

• Digital from sensor.

Update rate

• Display and outputs, once per second.

Temperature Compensation

• Conductivity/Resistivity: Selectable as: Std (standard high purity Thornton/Light), Light 84, Std referenced to 75°C, linear %/°C, 50% glycol, 100% glycol, cation, ammonia, isopropyl alcohol, none.
• pH: Automatic / manual for electrode output, plus adjustable solution temperature coefficient for solution ionization effects.
• Dissolved Oxygen: Automatic, for membrane permeability and oxygen solubility.

Calibration

• Conductivity/Resistivity: 1- or 2-point.
• pH: 1- or 2-point, with auto buffer recognition.
• Dissolved Oxygen: Air/comparison, zero.

pH Diagnostics

• Selectable continuous checking of membrane resistance and reference diaphragm/junction resistance (with solution ground sensors).

Sensor maximum distance

• 91 m (300 ft) conductivity.
• 20 m (66 ft) pH, ORP, DO.

Performance

• System Accuracy: Identical to sensor for Conductivity/Resistivity, pH, ORP, and Dissolved Oxygen.

Outputs

• Channels: One or Two.
• Setpoints/Alarms: 4 (One Channel) or 6 (Two Channel) - high, low, outside, between, USP or EP.
• Relays: 2 (One Channel) or 2 SPDT, 1 SPST NO, 1 SPST NC, 2 SPST reed (Two Channel) - SPDT, SPST reed types.
• Analog Output Signals: 2 (One Channel) or 4 (Two Channel).
• Discrete Inputs: 1 (One Channel) or 2 (Two Channel).

Mechanical / Hydraulic

Enclosure/Power

• Operator interface: 4 line back-lit LCD; 5-tactile keys.

Dimensions

• 1/4 DIN Model (H x W x D): 4.01 x 4.01 x 5.51 in (102 x 102 x 140 mm).
  • Max. Depth, panel mounted: 4.96 in (126 mm), excluding plug-in connectors.
• 1/2 DIN Model (H x W x D): 5.90 x 5.90 x 4.57 in (150 x 150 x 116 mm).
  • Max. Depth, panel mounted: 3.46 in (88 mm).

Material

• Polycarbonate.

Weight

• 1/4 DIN Models: 1.5 lb (0.7 kg).
• 1/2 DIN Models: 2 lb (1 kg).

Environmental

• Storage temperature: -40 to 70 °C (-40 to 158 °F).
• Ambient temperature operating range: -10 to 50 °C (14 to 122 °F).
• Relative humidity: 0 to 95%.

Physical and Electrical Specifications

• Analog outputs: Powered 0/4-20 mA, 22 mA alarm, 500 ohms maximum load.
  • Accuracy: ± 0.05 mA.
  • Scaling: Linear, bi-linear, logarithmic (1,2,3 or 4 decades), auto-ranging.
• Relays: All contacts are potential free, with adjustable hysteresis and time delay.
  • SPDT, SPST NO, SPST NC: 250 VAC/30 VDC, 3 A, resistive.
  • SPST reed: 300 VDC, 0.5 A, 10 W.
• Digital communications: USB, type B connector, for remote configuration and data acquisition.
• Discrete input: Accepts dry contact closure for remote PID control auto/manual selection.
• PID Control: Auto/manual status and % output on bottom line of display. Settings include setpoint, deadband, non-linear corner points, control limits, proportional gain, integral reset time (min.), derivative rate time (min.).
• Manual Station: Controlled by up/down arrow keys in manual mode; remote auto/manual selection by discrete input.
• Control Output Types: One or two analog signals, relays—pulse frequency, or relays—pulse length.

Electrical

• Power: Universal 100-240 VAC, 50-60 Hz or 20-30 VDC; 5 W.
• Non-volatile memory: All settings are retained on power loss without batteries.
• UL Electrical Environment: Installation (overvoltage) Category II.

Ratings/Approvals

• UL listed, CE compliant.
• NEMA 4X, IP 65 - 1/2 DIN wall mount and 1/4 DIN panel seal.
• EMC Emissions: According to EN55011 Class A.

Disclaimer

This extraction may miss figures, footnotes, or revisions. Contractual data must match the OEM PDF revision used on the project.

Official datasheet (PDF)

Lenntech datasheet mirror