the control signal (4-20mA) is hard wired to pass through the 531 without degradation. In LOCAL mode, the 531 generates the CV (control) signal in AUTO or MANUAL mode. Host CV tracking enables a bumpless transfer to LOCAL mode in either LOCAL AUTO or LOCAL MANUAL mode. A special CV line sense function triggers HOST to LOCAL transfer automatically if host CV signal fails. LOCAL/HOST transfer may also be initiated by a dedicated front panel key or a contact input. The 531's setpoint may be set locally or remotely from the host, ensuring bumpless changeover to LOCAL AUTO mode. The 531 may also be operated as a manual loading station in the LOCAL MANUAL mode. -
The 531 provides automatic PID control backup for critical loops controlled by PLC, DCS or PC systems. Unlike a single loop controller configured to sense and retransmit a control signal, which adds liability and complexity; the 531 has a simple operator interface, special parameters for control states upon host transfer or failure, and a special pass-through circuit that provides redundancy in the control loop. In HOST mode,
the control signal (4-20mA) is hard wired to pass through the 531 without degradation. In LOCAL mode, the 531 generates the CV (control) signal in AUTO or MANUAL mode. Host CV tracking enables a bumpless transfer to LOCAL mode in either LOCAL AUTO or LOCAL MANUAL mode. A special CV line sense function triggers HOST to LOCAL transfer automatically if host CV signal fails. LOCAL/HOST transfer may also be initiated by a dedicated front panel key or a contact input. The 531's setpoint may be set locally or remotely from the host, ensuring bumpless changeover to LOCAL AUTO mode. The 531 may also be operated as a manual loading station in the LOCAL MANUAL mode. -
The 532 Auto/Manual Station ensures the integrity of your processes with maximum reliability. Isolated inputs and outputs guard against electrical interference, the front face meets NEMA 4X standards for watertight operation, and solid metal housing and sturdy rubber keys enhance durability. The 532 has been engineered to be the industry’s most user friendly and comprehensive Auto/Manual Station. It has three digital display areas, with two offering up to 9 characters of true alphanumerics. The bright, crisp vacuum fluorescent display offers better readability than any other display technology. Additional operator friendly features include: custom programmable alarm messages, keys that illuminate when in use and an easy-to-use menu system. -
The 535 is a 1/4 DIN single loop process controller (SLC) designed to control any analog process variable (temperature, pressure, flow, level, etc.) in batch and continuous processes. The 535’s outstanding feature mix enables it to bring processes under control faster, more accurately and easily than competitive SLC’s, PLC, and PC based control systems. -
Automatic and accurate control of chlorine in potable and waste water is more important than ever due to health and regulatory concerns. Poor control can lead to failure of biomonitoring tests leading to an even more costly "Toxicity Reduction Evaluation." The 555 is a cost-effective way to upgrade chlorination and dechlorination processes in an easy to use, rugged 1/4 DIN size package. The 555 can be easily set up to handle flow proportional control, residual control, compound loop control with lag times, and dechlorination with sulfur dioxide. -
he D030 is a straight forward but basic, panel mount batch controller. The operator can enter a batch quantity easily or execute repeating batches. During the batch, the preset value is displayed as well as the batched (or remaining) quantity and the units of measurement. The automatic self-learning overrun correction will ensure an accurate result each batch again. -
The D074 is a basic, panel mount level / pump controller that works with a pre-set value and two switch points to control a pump or valve. The low and high level switch points are entered as a percentage of the pre-set value to switch the device on / off. For pump control applications, the function can be inverted to empty a well. A stable level within a hysteresis around the pre-set value is the result.
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The D074 is a basic, panel mount level / pump controller that works with a pre-set value and two switch points to control a pump or valve. The low and high level switch points are entered as a percentage of the pre-set value to switch the device on / off. For pump control applications, the function can be inverted to empty a well. A stable level within a hysteresis around the pre-set value is the result.
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The F120 single loop controller has been designed to offer outstanding control performance and provide a reliable solution for a wide variety of flow control applications. The single loop flow controller accepts most pulse inputs from flow meters and has a 4 - 20 mA output for controlling a valve or pump. The F120 is part of the Fluidwell process controller family and is the alternative for local control loops. -
Fluidwell launches the new N413 Batch Controller with receipt printing functionality. This is very useful for situations where you need a locally printed ticket as evidence of the delivered quantity like tank and truck (un) loading applications.
End-of-batch tickets and reprints can easily be printed automatically or on demand. Even in the unexpected event of an uncompleted batch, it is possible to print a ticket.
The N413 is a versatile and powerful batch controller, with a printer output, 2 field replaceable, heavy duty relays and three configurable transistor outputs. Relay 1 is fixed as main batch control output. Relay 2 and the transistor outputs can be configured as pump control with time delays, 2-stage batch control, alarm or pulse outputs. This makes the N413 a powerful and versatile batch or delivery controller.
The combination of the user-friendly numerical keypad with the compact, clear display, make the N-Series very attractive to our customers. The crystal clear LCD display, provides multiple batch control data simultaneously at a glance, including a graphical indication of the vessel, the batch process and the relay status. The bright backlight is standard available, ensuring perfect readings in all lighting conditions. -
The batch controllers of the N-Series are much more advanced compared to our F-Series and D-Series batch controllers. The N-Series distinguishes itself from other batch controllers by its very easy to use numerical keypad. Selecting and entering multiple preset values with the easy to press keys is astonishingly simple. The display is designed for batch processes: at a glance, the operator is aware of the indicated switch points and the actual state of the process. For your convenience the preset and the actual value with their engineering units are displayed simultaneously.
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The 330 is a process monitor with universal input that is multi-functional and microprocessor based. The 330 can function as a panel meter and trip (alarm), or as a panel meter with two trips (alarms), analog transmitter and digital transmission with the addition of the RS 485 serial communications option.