Honeywell Heavy Duty Pressure Transducers PX3 Series Installation Guide

Honeywell Heavy Duty Pressure Transducers PX3 Series

Installation Instructions

General Information
Honeywell’s PX3 Series Pressure Transducers use piezoresistive sensing technology with ASIC (Application Specific Integrated Circuit) signal conditioning. The PX3 Series is calibrated and temperature compensated from -40°C to 125°C [-40°F to 257°F].

The PX3 Series is not recommended for use with media involving water, saturated air such as steam and vapor, and ammonia.

Table 1. Performance Specifications (At 25°C [77°F] and under unless otherwise noted.)

1. Dependent on seal material..
2. Total Error Band: The maximum deviation from the ideal transfer function over the entire compensated temperature and pressure range. Includes all errors due to offset, full scale span, pressure non-linearity, pressure hysteresis, pressure non-repeatability, thermal effect on offset, thermal effect on span, and thermal hysteresis.
3. Accuracy: The maximum deviation in output from a Best Fit Straight Line (BFSL) fitted to the output measured over the pressure range at 25°C [77°F]. Includes all errors due to pressure non-linearity, pressure hysteresis, and pressure non-repeatability.
4. Turn on time: Duration from power applied until first valid output for voltage output. Typical value for 4 mA to 20 mA output.
5. Tested using 1,5 m [59.1 in] long cable.
6. Tested in dry, non-ionized air.

Table 2. Electrical Specifications

Figure 1. TEB Definition and Temperature Performance

Table 3. Pressure Reference Definitions

Sealed gage option only available in pressure ranges at or above 8 bar | 100 psi.

Figure 2. Ratiometric Output Option AA for 100 psi, Absolute vs Sealed Gage

Table 4. Pressure Ratings

Diagnostics Mode (For Ratiometric Voltage Output Only)

The PX3 Series diagnostics mode allows the device to indicate when internal or external faults occur. If an internal fault occurs, the output will rail to the preset lower or upper limit values shown in Figure 3 and Table 5.
External faults will result in the sensor’s output exceeding those preset limits (lower or upper). (For example, if the external sensor ground (signal) were lost, the sensor output would exceed the upper rail of 97.5%.)

Figure 3. Analog Output with Diagnostics

Table 5. Output Transfer Function Codes

Table 6. Environmental and Mechanical Specifications

Honeywell can assist with selecting suitable O-ring seal material for the media based on the seal manufacturer’s recommendation. The customer should test the compatibility with the media to ensure that it is correct for the application.

CAUTION: PRODUCT DAMAGE TO TUBE PRESSURE PORT TYPE DURING BRAZING

Ensure that the temperature of the brass port and plastic connector is maintained below 125°C during flame brazing.
Exposure to temperatures higher than 125°C can cause permanent product damage and can compromise ingress protection leading to short circuits.
Failure to comply with these instructions may result in product damage.

CAUTION: PRODUCT DAMAGE DUE TO MECHANICAL ISSUES

• Ensure torque specifications are determined for the specific application. Values provided are for reference only. (Mating materials and thread sealants can result in significantly different torque values from one application to the next.)
• When using mating parts made of stainless steel, use a thread sealant with anti-seize properties to prevent thread galling. Ensure the sealant is rated for the application.
• Use appropriate tools (such as an open ended wrench or deep well socket) to install transducers.
• Always hand-start transducers into the hole to prevent cross threading and damage.
• Ensure that torque is not applied to the electrical connector.
• Ensure that the proper mating electrical connector with a seal is used to connect the transducer. Improper or damaged seals can compromise ingress protection, leading to short circuits.

Failure to comply with these instructions may result in product damage.

CAUTION: PRODUCT DAMAGE DUE TO PARTICULATES AND SATURATED AIR
Ensure that filters and dehumidifiers are used upstream of the transducers to keep media flow free of large particulates and condensed moisture. PX3 Series transducers are dead-end devices. Particulate accumulation may clog the port or damage the diaphragm. Condensing moisture may affect sensor output and lower insulation resistance.

Failure to comply with these instructions may result in product damage.

CAUTION: PRODUCT DAMAGE DUE TO CONDUCTIVE MEDIA
Ensure sensor is not used with conductive or ionic media. These media can affect sensor output and lower insulation resistance.

Failure to comply with these instructions may result in product damage.

Figure 4. Metri-Pack Mounting Dimensions (For reference only. mm/[in].) E

Figure 5. DIN Mounting Dimensions (For reference only. mm/[in].) E

Figure 6. Cable Harness Mounting Dimensions Shown by Pressure Port Type (For reference only. mm/[in].) E

WARNING: PERSONAL INJURY
DO NOT USE these products as safety or emergency stop devices or in any other application where failure of the product could result in personal injury.
Failure to comply with these instructions could result in death or serious injury.

Warranty/Remedy

Honeywell warrants goods of its manufacture as being free of defective materials and faulty workmanship during the applicable warranty period. Honeywell’s standard product warranty applies unless agreed to otherwise by Honeywell in writing; please refer to your order acknowledgement or consult your local sales office for specific warranty details. If warranted goods are returned to Honeywell during the period of coverage, Honeywell will repair or replace, at its option, without charge those items that Honeywell, in its sole discretion, finds defective. The foregoing is buyer’s sole remedy and is in lieu of all other warranties, expressed or implied, including those of merchantability and fitness for a particular purpose. In no event shall Honeywell be liable for consequential, special, or indirect damages.

While Honeywell may provide application assistance personally, through our literature and the Honeywell web site, it is buyer’s sole responsibility to determine the suitability of the product in the application.
Specifications may change without notice. The information we supply is believed to be accurate and reliable as of this writing. However, Honeywell assumes no responsibility for its use.

For more information
Honeywell Advanced Sensing Technologies services its customers through a worldwide network of sales offices and distributors. For application assistance, current specifications, pricing or the nearest Authorized Distributor, visit our website or call:

Asia Pacific +65 6355-2828
Europe +44 (0) 1698 481481
USA/Canada +1-800-537-6945

Honeywell Advanced Sensing Technologies
830 East Arapaho Road
Richardson, TX 75081
sps.honeywell.com/ast