P11131000072A BARBER - COLMAN, P11131000072A Datasheet - Page 2

• Manufacturer Part Number: P11131000072A
• Description: Thermocouple
• Manufacturer: BARBER - COLMAN
• Type: J Typer

Specifications of P11131000072A

• Lead Length: 72"
• Thermocouple Type: J
• Terminal Type: Stripped Lead
• Probe Length: 72 In
• Features: Locking Cap
• Lead Free Status / RoHS Status: na

Attaching Bolt
Attaching Bolt
Support Tube
Introduction
Components
Attaching Device
Page 2-2
Relief Spring
Nozzle Melt Sensors
Workpiece
Workpiece
Junction
Tube
Tip
The typical plastics industry sensor assembly consists of four components:
• attaching device,
• element,
• element protection,
• cold end termination.
The sensor is further defined by its physical attributes:
• number of elements
• junction style (hot end)
• probe configuration (straight, 45°, 90°)
• length of components
The following paragraphs provide a brief explanation of each component and physical
attribute. After reading this section you should have a general, comprehensive understand-
ing of how sensors for the plastics industry are constructed.
Some sensors are designed for specific applications and have a unique attaching device;
others are designed for general application and have a common attaching device.
The attaching device, also called the process mount, is defined by the way it mounts the
sensor to the workpeice. The following paragraphs discuss the various devices. For detailed
explanation, see "Process Mounting."
Unique mounts include
• melt bolt
• nozzle melt
• ring or lug
The melt bolt sensor is used on extruders and injection molding machines. A melt bolt "blank"
with a hole through its length is welded to the rigid tube.
The nozzle melt sensor is designed for injection molders. Two types are available: immersion
type and non-immersion type. The immersion type is a bolt "blank" with a hole through its
length on the sensor tube. The sensor tip protrudes through the workpeice and seats in
a beveled hole in the work piece. The attaching bolt is threaded into the workpiece and
tightly seals the tip to the workpiece.
The non-immersion type is an attaching bolt with a center hole. A short tube seats in the
bolt hole and supports the thermocouple junction against the bottom of the hole in the
workpiece. Or, if the sensor is an RTD, the tip is potted in the hole in the bolt.
Ring type and lug type sensors measure surface temperature – such as a barrel or a mold.
The sensor leads are joined at the ring or lug (hot junction). The sensor attaches to a threaded
stud on the workpiece and must be secured with a nut.
Plastics Sensors Construction
Technical Data
HA136712