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Sensing and Internet of Things

Heavy Duty Pressure Transducers

PX3 Series, 1 bar to 50 bar | 15 psi to 700 psi

Table 6. Environmental and Mechanical Specifications

Characteristic

Parameter

Shock:

threaded ports

tube port

100 G per MIL-STD-202G, Method 213B, Cond. F (at 25°C [77°F])

100 G per MIL-STD-202F, Method 213B, and Condition C

Vibration:

threaded ports

tube port

20 G sweep, 10 Hz to 2000 Hz (at 25°C [77°F])

10 Hz to 55 Hz, 2 mm displacement, tested as per IEC 60068-2-6; Test FC. (at 25°C [77°F])

Ingress protection:

Metri-Pack 150 electrical connector

cable harness electrical connector

IP67

IP69K

Ambient humidity

0 %RH to 95 %RH, non-condensing

External freeze/thaw resistance

>6 cycles from -30°C to 50°C [-22°F to 122°F]

Wetted materials:

threaded ports

tube port

braze filler

internal O-ring media seal

sensing element and substrate

adhesives

brass C36000; lead (Pb) content: 3.7% max.

copper UNS C12200; lead (Pb) free

silver and copper alloy

sealmaterialasrequiredbytheapplication(seesealmaterialmediacompatibilityoptionsbelow)

alumina, glass, silicon

epoxy

InternalO-ringmaterialmediacompatibility1:

HNBR (option H)

silicone (option S)

refrigerants, engine oil, petroleum-based hydraulic fluid

dry air

Other materials:

Metri-Pack 150 electrical connector

external O-ring seal on G1, M1 ports

PBT 30% GF

nitrile (-30°C to 125°C [-22°F to 257°F])

1

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 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 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 PARTICULATES

• Ensure that a filter is used upstream of the transducer to keep media flow free of larger particulates and increased humidity. All

PX3 Series transducers are dead-ended devices; particulate accumulation and condensing moisture may affect sensor output.

• It is recommend that the transducer be positioned with the port facing downwards; any particulates in the system are less

likely to enter and settle within the pressure transducer if it is in this position.

• Ensure that the media does not create a residue when dried. Build-up inside the transducer may affect transducer output;

rinsing of a dead-ended transducer is potentially difficult and has limited effectiveness in removing residue.

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