Operation, Maintenance | Chromalox PD444-2 specs

OPERATION

1.Do not operate heater at voltages in excess of that stamped on the heater since excess voltage will shorten heater life.

2.Always maintain a minimum of 2” of solution above the heated portion of the element to prevent exposure of the effective heated length. If the heater is not properly submerged, it may overheat and shorten heater life. Do not operate heater if dry.

3.Sludge should not be allowed to build-up to the point where it contacts heater as this can lead to premature heater failure. Heater must not be operated in sludge.

4.In an electroplating operation the heaters are not, under any cir- cumstances, to be placed between the electrodes and the work.

MAINTENANCE

ELECTRIC SHOCK HAZARD. Disconnect all power before installing or servicing heater. Failure to do so could result in personal injury or property dam- age. Heater must be installed by a qualified per- son in accordance with the National Electrical Code, NFPA 70.

1.Heaters should be checked periodically for coating and corrosion buildup and cleaned if necessary.

2.Tank should be checked regularly for sediment around the end of heater as this sediment can act as an insulation and shorten heater life.

3.Note: Before Teflon heater is removed from solution, it should be allowed to cool from 15 to 20 minutes.

THERMAL FUSE INSTALLATION/REPLACEMENT

The Thermal fuse device must be properly installed and these procedures followed or heater failure or fire may result.

A liquid level control is a must as an additional safety feature to help minimize the possibility of fire.

1.Make sure all electrical power to the heater is shut-off.

2.Unscrew the head cover. Remove the wire nuts from the fuse leads and save for re-use.

3.Remove the “Sealing Putty” and pull the Thermal fuse out of its well. Clean the “putty” out of the well and save for re-use.

4.Check the Thermal fuse and the inside of the well to see if it is wet. If wet inside, dry out well. Immerse the tube into the solu- tion. If moisture appears again inside the well DO NOT use the heater! Call the factory for further advice.

5.If the removed Thermal fuse is dry, proceed by using it as a guide to cut and strip the wires of the new Thermal fuse.

6.Re-connect the Thermal fuse leads to the extension leads using the original wire nuts.

7.Re-insert the Thermal fuse into the well making sure it is “fully seated” to the bottom of the well.

8.Re-seal using the original “sealing putty” or an RTV type sealant.

9.Replace the head cover, return the heater to the tank.

10.Turn the power back on.

Thermal Fuse Temperature System —

Be sure and satisfied that your process bath tanks are as well protected as possible from tank leaks, excessive evaporation, tank refill failures, and worker error.

Grounded Electric Immersion Heaters are practical, efficient and safe when used properly and installed in tanks that have

proper solution levels. Good ventilation, trained operators and safeguards such as liquid level controls and Thermal fuse over- temperature sensors.

Thermal fuse systems help reduce the hazards created by low liquid levels and when properly seated and wired, they will cut off the power to the heaters, thus avoiding the extreme tempera- tures resulting if solution levels are low enough to expose heater hot zones.

Single Use Fuse (F) —

Sensor consists of a one-time thermal fuse sensor which is standard on all GTF over-the-side heaters.

The F thermal fuse is wired in series with the controller. To operate properly the fuse must be fully seated to the bottom of the thermowell tube. When the fuse “blows”, shut off the main power to the heater, remove the spent fuse and install the new fuse. Refill the tank to the proper level prior to turning power back on. Replacement thermal devices must be purchased from Chromalox®.

Resettable Fuse (RF) —

Sensor consists of a Bi-metallic thermostatic sensor, an audi- ble alarm, alarm relay, and reset button.

The RF System operates on the same principle as the F except that the sensor does not “blow”. It operates as a Bi-metal- lic thermostat which “opens” and sounds the alarm. The reset but- ton must be pushed to re-activate the heater and control, after the solution level in the tank has been raised to the proper level.

FIRE/SHOCK HAZARD: Before replacing fuse, make sure the cause of the “failure” has been detected and corrected.

PD444-2 specifications

The Chromalox PD444-2 is a sophisticated temperature control device designed for a variety of industrial applications. It stands out due to its reliability, precision, and versatility, making it an ideal choice for processes that require meticulous temperature management.

One of the main features of the PD444-2 is its advanced control technology. The device utilizes a digital microprocessor to ensure accurate temperature regulation. This technology allows for precise monitoring and adjustment of temperature settings, minimizing fluctuations that could adversely affect processes or product quality. The microprocessor capability also enhances the device's efficiency, allowing for rapid response times to changing temperature requirements.

Another significant characteristic of the PD444-2 is its user-friendly interface. The control panel is designed for intuitive navigation, enabling operators to set and modify parameters easily. The clear display provides real-time readings, making it simple to monitor operational status. Additionally, the device is equipped with programmable features that allow users to create customized temperature profiles, enhancing usability in complex applications.

The PD444-2 is built to withstand the rigors of industrial environments. Its robust construction ensures durability, even in harsh conditions. The device is designed to operate effectively under a wide range of temperatures, making it suitable for diverse applications, from food processing to chemical manufacturing. Furthermore, it features safety mechanisms, such as over-temperature protection, to prevent potential hazards associated with temperature control failures.

In terms of connectivity, the Chromalox PD444-2 supports various communication protocols, allowing for seamless integration with existing systems. This adaptability facilitates remote monitoring and control, providing operators with enhanced oversight of their processes. The ability to connect with other devices enhances the overall efficiency of operations and streamlines temperature management.

Lastly, the PD444-2 is energy-efficient, contributing to cost savings for users. Its design includes features that minimize energy consumption without compromising performance. This focus on efficiency not only reduces operational costs but also supports sustainability initiatives in industrial settings.

In summary, the Chromalox PD444-2 is a highly effective temperature control solution that combines advanced technology, user-friendly features, robust construction, connectivity options, and energy efficiency. Its versatility makes it an indispensable tool in achieving optimal temperature management across various industrial processes.