1-800-663-4209 | Welcome to our new website, found an issue or bug? Please report it here
AM-2251-Controller
Multi-Variable Controller, pH, ORP, Toroidal Conductivity, DO
- pH, ORP, toroidal conductivity & dissolved oxygen parameters
- Highly visible large backlit LCD display
- Flexible and easy calibration, including multi-point conductivity calibration for ac- ids and bases
- 4-20mA process output with range scaling and PID Control
AM-2251-Controller
From
$
1,320.90
Product Overview
- Additional Features 1 PID Control, Sensors Sold Separately
- Calibration Note pH Calibration modes: Automatic or Manual 2 or 3 points; Dissolved Oxygen Calibration modes: 100% sat Zero offset; ORP Calibration modes: Manual 1 point; Conductivity Calibration modes: Up to 16 points Zero offset
- Compliance ETL
- Compliance Note ETL (US and Canada) and CE pending
- Conductivity Measurement 4 to 400,000 µS/cm
- Cutout Dimensions 5.4 x 5.4 in
- Display Type LCD
- DO Measurement Range 0 to 10.3 ppm, 0 to 125% sat
- Enclosure Ratings NEMA Type 4X
- Frequency 50/60 Hz
- 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 4000 mV; Dissolved Oxygen Sensor Input: 0 to 5000 nA
- Length 5 in
- Mounting Orientation Panel Mount, Wall Mount
- Number of Relays 3
- Operating Humidity 0 to 90% RH
- Operating Temperature, Max 150 °C
- Operating Temperature, Min -20 °C
- ORP Measurement Range -999 to +999 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 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, Overfeed Timer, Override Cycle On/Off, One relay can be triggered by temperature
- Sensing Element 100/1000 Ω RTD, 300/3K/10K Ω NTC or none
- Sensing Element Note PH, ORP, Toroidal Conductivity, DO: 100, 1000 Ω RTD, 300, 3K or 10K Ω NTC or none with auto detect
- Sensor Type Note pH Sensor: 6-Wire Differential or Combination; ORP Sensor: 6-Wire Differential or Combination; Conductivity Sensor: Toroidal (Inductive) Non-Contacting; Dissolved Oxygen Sensor: Clark Cell Amperometric
- Temperature Compensation Automatic: pH, DO ;Autpmatic or Manual: Toroidal Conductivity ;Display temperature: ORP
- Temperature Measurement Note pH, ORP, Conductivity, DO, Toroidal Conductivity : -20 to 150 °C
- Weight 2 lb
- Width 5.5 in
The AM-2251 is the newest addition to the 2250 family. Built in the image of the AM-2250 it replaces the 2200D as our D.O. controller while also adding toroidal conductivity.
Four Parameters. Select the parameter you wish to measure from the easy-to-use LCD menu on the inside front cover. Choose Conductivity, pH, ORP or D.O. The user interface was designed under the principle that the user should not need to read the manual.
Three Relays. The AM-2251 provides control of external devices using its three independent control and alarm relays. Each relay has adjustable high, low and in range set-points, cycle timer, with adjustable on and off times. This feature enables tighter control of batch processes by eliminating chemical overshoot. Third relay can be activated by temperature as well.
Analog Outputs. The AM-2251 provides two isolated, independent and scalable 4-20 mA outputs. One 4-20 mA output can be configured for PID control. Most users will only use proportional control but the integral and derivative terms are there for advanced control.
Zero Cards. The AM-2251 comes complete. There are no extra costs associated with buying boards for different sensors, or buying components to achieve NEMA 4X.
Enclosure. The AM-2251 is packaged in a rugged NEMA 4X polycarbonate enclosure making it ideally suited for indoor and outdoor heavy-duty applications. A mounting kit is included for surface and panel mounting. The enclosure outline makes panel-mount cutouts simple. Pipe mounting kits are available.
One Big Display. The AM-2251 features a backlit LCD display can be seen from a distance. The keypad allows easy entry of menu items and numeric values.
Calibration. No other controller offers the same combination of flexibility and ease for calibration. The process value is visible during calibration so the user knows when it has settled down. Calibration of pH can be with 2 or 3 points. Calibration of conductivity can take as many as 16 points so acids and bases can be measured through their conductivity. All Calibration data is stored.
Four Parameters. Select the parameter you wish to measure from the easy-to-use LCD menu on the inside front cover. Choose Conductivity, pH, ORP or D.O. The user interface was designed under the principle that the user should not need to read the manual.
Three Relays. The AM-2251 provides control of external devices using its three independent control and alarm relays. Each relay has adjustable high, low and in range set-points, cycle timer, with adjustable on and off times. This feature enables tighter control of batch processes by eliminating chemical overshoot. Third relay can be activated by temperature as well.
Analog Outputs. The AM-2251 provides two isolated, independent and scalable 4-20 mA outputs. One 4-20 mA output can be configured for PID control. Most users will only use proportional control but the integral and derivative terms are there for advanced control.
Zero Cards. The AM-2251 comes complete. There are no extra costs associated with buying boards for different sensors, or buying components to achieve NEMA 4X.
Enclosure. The AM-2251 is packaged in a rugged NEMA 4X polycarbonate enclosure making it ideally suited for indoor and outdoor heavy-duty applications. A mounting kit is included for surface and panel mounting. The enclosure outline makes panel-mount cutouts simple. Pipe mounting kits are available.
One Big Display. The AM-2251 features a backlit LCD display can be seen from a distance. The keypad allows easy entry of menu items and numeric values.
Calibration. No other controller offers the same combination of flexibility and ease for calibration. The process value is visible during calibration so the user knows when it has settled down. Calibration of pH can be with 2 or 3 points. Calibration of conductivity can take as many as 16 points so acids and bases can be measured through their conductivity. All Calibration data is stored.
PDFs & Manuals
Show Ratings & Reviews