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AM-2250-Controller
Multi-Variable Controller pH, ORP, Contacting Conductivity, Flow
Models In Stock
- pH, ORP, conductivity & flow parameters available.
- Highly visible back-lit LCD display.
- Flexible and easy calibration, including multi-point conductivity calibration for acids and bases.
- Three control relays for rising or falling processes.
AM-2250-Controller
From
SGD
2,370.26
Models In Stock
Product Overview
- Additional Features 1 PID Control, Sensors Sold Separately
- Calibration Note pH Calibration modes: Automatic or Manual 2 or 3 points; ORP Calibration modes: Manual 1 point; Conductivity Calibration modes: Up to 16 points; Flow Calibration modes: K factor input
- Compliance Note ETL (US and Canada) and CE pending
- Conductivity Measurement 0.055 to 500,000 µS/cm
- Cutout Dimensions 5.4 x 5.4 in
- Display Type LCD
- Enclosure Ratings NEMA Type 4X
- Flow Indication Note 0 to 999 in any units
- Height 5.5 in
- Input Range Note pH Sensor Input: -600 to +600 mV; ORP Sensor Input: -999 to +999 mV; Conductivity Sensor Input: 0 to 9999 Ω; Flow Sensor Input: 0 to 2000 Hz
- Length 5 in
- Mounting Orientation Panel Mount, Wall Mount
- Number of Relays 3
- Operating Humidity 0 to 90% RH
- Operating Temperature, Max 120 °C
- Operating Temperature, Min -20 °C
- ORP Measurement Range -1000 to +1000 mV
- Output Detail Two 4-20 mA outputs, Scalable 4-20mA with PID (Process), Scalable 4-20mA (Process or Temperature), Optically isolated. Max Load - 800 Ω
- PH Measurement Range 0 to 14.00 pH
- Power Consumption 0.2 A @ 115 Vac or 15 W
- Process Temperature, Max -20 °C
- Process Temperature, Min 70 °C
- Relay Note 3 Dry contact relay with snubber circuit, 10A @ 120/240 VAC or 8A @ 30 VDC (Resistive Load), 5A @ 120/240 VAC or 4A @30 VDC (Inductive load) Relay Modes: Rising/Falling/In Range. Options: Relay Delay, Cycle, Overfeed Timer, Override, One relay can be triggered by temperature or flow totalizer.
- Sensing Element 100/1000 Ω RTD, 300/3K Ω NTC or none
- Sensing Element Note PH, ORP, Conductivity: 100, 1000 Ω, RTD 300, 3K Ω NTC or none
- Sensor Type Note pH Sensor: 6-Wire Differential or Combination; ORP Sensor: 6-Wire Differential or Combination; Conductivity Sensor: 4-Wire contacting : Any cell constant between 0.01 and 100; Flow Sensor: Pulse output: Paddle-wheel, Magmete
- Series ID AM-2250-Controller
- Temperature Compensation Automatic: pH ;Automatic or Manual: Conductivity ;Display temperature: ORP ;Display Flow Totalizer: Flow
- Temperature Measurement Note pH, ORP, Conductivity : -20 to 120 °C, Flow : Flow Totalizer 0 to 999 in any units
- Weight 2 lb
- Width 5.5 in
Supported Applications
The Omega AM-2250 series comprises multi-parameter controllers and transmitters designed for pH, ORP (Oxidation Reduction Potential), contacting conductivity, inductive conductivity, dissolved oxygen, and flow measurements. The AquaMetrix by Water Analytics line supports applications requiring flexible calibration modes, including up to 16-point wet or dry calibration for conductivity acids and bases, as well as TDS and % concentration calculations.
Operating Conditions & Performance
The series operates within an ambient temperature range of -20 to 70 °C in environments with 0 to 90% Relative Humidity (non-condensing). Measurement capabilities include a pH process range of 0 – 14 pH and ORP from -999 to 999 mV. Conductivity measurement ranges span 0.055 to 500,000 µS/cm depending on the cell constant used (available constants: 0.01 to 100). Flow inputs accept pulse outputs up to 2000 Hz with a totalizer range of 0 to 999 in any available units.
Electrical performance includes two fully scalable and optically isolated 4-20 mA analog outputs (Channel 1 supports optional PID; Channel 2 configurable for Process or Temperature) with a maximum load resistance of 800 Ω. The unit is housed in a NEMA 4X polycarbonate enclosure, rated ETL (US and Canada), cETL, RoHS Compliant, and CE pending.
Key Performance Specifications
- pH Sensor Input: -600 to +600 mV with 1, 2, or 3-point automatic/manual calibration modes.
- ORP Sensor Input: -999 to +999 mV with single-point manual calibration.
- Conductivity Calibration: Up to 16 points (wet or dry).
- Flow Calibration: K-factor input for paddle-wheel and magnetic flow sensors.
Configuration Options
The AM-2250 series offers distinct configurations based on power requirements, display features, and sensor compatibility. The standard AC-powered models (AM-2250 and AM-2251) feature a large backlit LCD, three independent relays, and two 4-20 mA outputs. A loop-powered transmitter version (AM-2250TX) is available without the power-relay board or backlit display due to power constraints.
Model-Specific Configurations
- AM-2250: Supports 6-series and 500-series pH/ORP sensors, contacting conductivity, flow pulse inputs, two 4-20 mA outputs (one with PID), and three independent relays.
- AM-2251: Designed for inductive conductivity and dissolved oxygen measurements alongside pH/ORP; includes two 4-20 mA outputs and three relays but does not support contacting conductivity or flow pulse inputs per the summary table.
- AM-2250TX: Loop-powered transmitter version supporting pH, ORP (6-series/500-series), contacting conductivity, and flow; includes two 4-20 mA outputs but lacks relays and a backlit LCD.
Relay Control Options
The three independent dry contact relays support resistive loads up to 10A @ 120/240 VAC or 8A @ 30 VDC, and inductive loads up to 5A @ 120/240 VAC or 4A @ 30 VDC. Relay modes include Rising/Falling/Range mode, Cycle On/Off, Relay Delay, Overfeed Timer, and Override functions.
Key Product Differences
The primary distinction within the series lies in sensor compatibility and output architecture. The AM-2250 is configured for contacting conductivity and flow pulse inputs (Paddle-wheel/Magmeter), whereas the AM-2251 supports inductive conductivity and dissolved oxygen sensors but excludes contacting conductivity and flow options.
Power supply requirements differ between models: AC-powered units operate on 120/240 VAC, 60 or 50 Hz (Max Power Input: 0.2 A @ 115 VAC or 15 W), while the AM-2250TX is loop-powered and omits the internal power-relay circuit board. All models share identical physical dimensions with a front cover of 5.5"x5.5" (14 cm x 14 cm) and depth of 5" (13 cm), weighing approximately 2 lbs.
Mounting options include wall mount, panel mount (kit provided; cut-out: 5.4" x 5.4" / full DIN), or optional pipe mount kits.
PDFs & Manuals
