Mercury Free Series

PT415D - Washable  Melt pressure sensor with rigid stem and (NaK) filling.

PT415D (NaK)

The PT415D pressure transmitter with accuracy of better than ±0.5% is the ideal choice for food and medical applications that require high accuracy and easy maintenance. It is a washable sensor with insulated wiring type 1/2-14 NPT or an optional 6-pin hermetically insulated bendix connector. It uses a special Inconel 718 membrane and a heat-resistant, mercury-free NaK filling with a high accuracy of 0.5% of the range with excellent repeatability and reliability. Meets FDA and USDA hygiene regulations and requirements.

All sensors in this series can be configured according to your needs. Contact us, we will be happy to help you.

PT 415D - Melt pressure sensor in a design with a fixed stem

PT 415D - Melt pressure sensor in a design with a fixed stem

Standard process connection of 1 / 2-20 UNF sensor with diaphragm cover.

Standard process connection of 1 / 2-20 UNF sensor with diaphragm cover.

Adjusting screws - used to adjust the zero and upper range of the sensor

Adjusting screws - used to adjust the zero and upper range of the sensor

Sensor terminal and compatible cable connector

Sensor terminal and compatible cable connector

Inquiry system 

Configure your own product according to your requirements and needs. If you are unsure of the configuration, provide us in the notes the necessary information about the existing sensor or product, even a competitor. We will be happy to help you find an alternative Dynisco product. If your request is urgent, let us know. We will do our best to help you resolve this situation to your satisfaction as quickly as possible. If we have all the information, we are able to offer a model with minor differences, which is in stock and you can have another product available the next day.

If you need more information do not hesitate to contact us.

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Food Extrusion Pressure Transducer 

Our pressure sensors offer efficient, accurate, and durable solutions for reliable and safe pressure measurement. These sensors are used in a variety of industrial areas, where they monitor and measure the pressure of molten materials, ensuring optimal operation of production processes. Due to their resistance to high temperatures and pressures, which are typical for these applications, they represent a suitable choice for diverse uses. When selecting a sensor, it is important to consider the specific requirements of your application, such as temperature range, pressure range, and materials with which the sensor will interact. The correct choice of sensor guarantees reliable and accurate results and a long service life of the device without any problems. Installing the sensor into the mounting hole of the production line is simple.
However, if you have doubts about the proper installation, do not hesitate to contact our technicians. We are ready to provide support and offer the ideal solution for your application.

PT415D Pressure Sensors - With rigid stem

Rigid Stem pressure sensors are easily installed into the mounting hole of the production line, ensuring a simple and robust design that is suitable for applications where the sensor is not exposed to radiant heat from the line and the electronics are not subjected to extreme temperatures. We do not recommend installing these sensors in a vertical position above the line (12 o'clock position), as radiant heat can negatively affect the sensor's electronics lifespan. In such cases, we recommend using a sensor design with a flexible capillary, which allows the electronics to be diverted away from the radiant heat, ensuring a long sensor life. The main advantages of this type of sensor include resistance to impacts and vibrations, enabling them to withstand mechanical stress, which increases their lifespan and reduces the need for maintenance. They also feature high accuracy, ensured by quality materials and advanced measurement technology, which is crucial for efficient process control.

Performance Characteristics 

Outputs: 3.33 mV/V ± 2.0%
Input Voltage: 10 Vdc recommended, 12 Vdc maximum
Accuracy: ±0.5% FSO
Repeatability: ±0.2% FSO
Configuration: Four-arm bonded foil Wheatstone bridge strain gage
Bridge Resistance: Input: 345 Ohms minimum Output: 350 Ohms ± 10%
Over Pressure: 2X FSO or 35,000 psi, (whichever is less)
Zero Balance Adjustment Range: ±5% FSO
Insulation Resistance: 1000 megohms @ 50 Vdc
Internal Shunt Calibration (R-Cal): 80% FSO ± 0.5%
Weight: 2 lbs.


Temperature & Mechanical Characteristics


Max Diaphragm Temperature: 750°F (400°C)
Zero Shift (due to temperature change): 15 psi/100°F Typical (27 psi/100°C) 
Electronics Operating Temperature: 250ºF (121ºC)
Zero Shift (due to temperature change): ±0.01% full scale/°F maximum (±0.02% full scale/°C)
Span Shift (due to temperature change): ±0.005% full scale/°F maximum (±0.01% full scale/°C maximum)
±0.01%/°F maximum 500, 750, 1,000 psi (±0.02% full scale/°C maximum)
Mounting Torque: 500 inch/lbs. max
Standard Wetted Parts: Dymax® coated 15-5 PH SST

Ordering Guide for PT415D Series



PT415D - Dimensions  

All dimensions are inches (mm) unless otherwise specified.

Torque wrench Wera 20 - 100 Nm

Torque wrench Wera 075611 Click-Torque B 2 with switch ratchet 3/8 "(20 - 100 Nm)

Wera Click-Torque torque wrenches are supplied as switch ratchets (with connection dimensions 1/4 ", 3/8", 1/2 "and 3/4") or with clamping for socket tools (9x12 mm, 14x18 mm) for tightening torques from 2.5 Nm up to 1,000 Nm.
All Wera Click-Torque torque wrenches manufactured in accordance with DIN EN ISO 6789 are supplied with a declaration of conformity.

Transducer Mounting Hole Cleaning Tool Kit

Installation of transducers into improperly cleaned or sized holes is one of the major causes of damage to these instruments. With this kit, the .312" tip diameter hole, the 45 degree seating surface, and the .451" hole can be cleaned. The kit includes a gauging plug which is used to verify that the hole has been correctly machined and cleaned. M10 and M18 cleaning kits also available.

Transducer Mounting Hole Machining Tool Kit

The Dynisco Transducer Mounting Hole Machining Tool Kit contains all of the necessary drills and taps to prepare a standard 1/2 - 20 UNF transducer mounting hole and the 45 degree seat. All tools included in this kit are made of premium grade, high strength tool steel. Care should be taken in the use of proper speeds and feeds, lubricants, and a method to assure continual alignment of each progressing tool. M10 and M18 kits are also available.

1480 Panel Indicator

The 1480 is a Universal Pressure or Temperature Input Indicator with single or dual configurable alarms, as well as optional linear retransmission of displayed Process Variable. Ideal for use in Extrusion applications. 

1490 Process Panel Indicator

The 1490 is a Universal Input Indicator with single or dual configurable alarms, optional linear retransmission of Process Variable, Transmitter power supply option as well as optional Modbus communications. 

UPR 900 Panel Indicator

The UPR900 is a compact 1/4 DIN process indicator. The UPR900 can display your choice of engineering units related to a selectable range of input types. Add an optional secondary input for an all-in-one display of polymer melt pressure and temperature. The secondary input can be strain gauge to indicate differential pressure measurement. The UPR900 includes two standard assignable alarms with the option to add a 3rd. 

ATC990 Process Panel Controller

The ATC990 with a graphical/text LCD display is a universal input process controller with advanced functionality including Trend views as well as Digital Inputs, USB and data logging options. It provides a cost-effective way to control a single process parameter, such as for a plastics extruder. Designed to improve user efficiency many features are integrated to reduce commissioning time, simplify operation and minimize maintenance downtime. Reliably auto-tune and alarm on strain gauge, DC voltage, temperature or current inputs.

PPS1210 calibration pump

The PPS1210 pressure calibration pump with heated pressure port enables fast and accurate inspection of melt pressure sensors directly in the laboratory or directly in the factory. Thanks to its compact dimensions, it is easily portable.

Certificates & Approvals

Overview of Available Certificates and Approvals: Visit this link, which will take you to a page with a comprehensive list of current certificates and approvals for our products. Here, you can verify that our offerings meet the highest standards of quality and safety.


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