Precision 4-Wire Pt100 Insertion Temperature Probe AX111-I3-B-150-L01-P-M12

Reference: AX111-I3-B-150-L01-P-M12

Condition: New product

Precision Insertion Temperature Probe

The AX 111-I3-B-150-L01-P-M12 offers reliable and fast temperature measurement with its precision Pt100 4-wire platinum sensor and ergonomic design, engineered for professional use in demanding industrial environments.

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Key Benefits

Ergonomic handle withstanding operating temperatures up to 120 °C
High accuracy Pt100 platinum sensor compatible with reference instruments
Durable, robust construction for long-term professional applications
Food-grade stainless steel stem, corrosion and temperature resistant
IP67 water and dust protection for reliable use in wet environments
Easy to clean and replaceable sensor for simplified maintenance

Ideal Applications

Designed for precise temperature monitoring in gases, liquids, and semi-solid materials, the AX 111 probe is perfect for food industry, laboratories, and industrial settings requiring accurate, reliable measurements.

General Specifications

Parameter	Description
Measuring Element	Pt100 thin film sensor, 4-wire configuration
Measuring Range	-50 °C to +250 °C (Classes B, A, or AA available)
Response Time (T90)	< 2 seconds in water (0.4 m/s), approx. 40 seconds in air (2 m/s)
Connection	M12 4-pin male A-coded connector, MiniDIN, or loose wire ends
Probe Dimensions	Ø 3 mm, length 150 mm (custom lengths available)
Stem Material	Stainless steel AISI 316L, corrosion and temperature resistant
Handle Material	Polyamide (PA6-GF30), max operating temperature 120 °C
Cable Length	Standard 1 meter, optional 2 or 5 meters available
Protection Rating	IP67 – dust tight and waterproof

Technical Specifications

Parameter

Description

Measuring Element

AX 111-xx Pt100, thin film sensor

Construction

Insertion probe AX 11x-I3 / -IH3 Ø3 mm, rigid probe stem

Accuracy

Tolerance classes B, A, AA, 1/10 B
Note: Check the scope of applicability of the classes *

Measuring Range

AX 111-I3: -50…+250 °C, classes B, A or AA, thin film, rigid stem
AX 115-I3: -50…+250 °C, class 1/10 B wire-wound, rigid stem
AX 111-IH3: -50…+400 °C, class B, thin film, rigid stem
AX 115-IH3: -100…+400 °C, class A, wire-wound, rigid stem

Response Time (T90)

I3: water 0.4 m/s < 2 s, air 2 m/s approx. 40 s
IH3: water 0.4 m/s < 10 s, air 2 m/s approx. 40 s

Output

Pt100 4-wire

Connection Options

- M12 4-pin male A-coded connector
- Mini-DIN 4 pin (for GMH 37xx)
- Loose ends

Dimensions

Stem: Ø3 mm, length 150/300 mm (other lengths on request)
Cable: Ø4 mm, length 1, 2 or 5 m

Weight

Approx. 110 g with 1 m cable

Materials

Stem: AISI 316L (1.4404)
Handle: Polyamide (PA6-GF30), max 120 °C, optionally molded for permanent underwater use (-WD, PVC cable only)
Cable: PVC (permanently up to +80 °C / short term up to +105 °C for 2 hours)

Protection Degree

IP67, with option “Waterproof molded handle” for continuous underwater operation

Applications

Immersion, insertion

Technical Notes:
*) Tolerance classes for platinum resistors are standardized according to IEC 751 and EN 60751:

Tolerance Class	Standard	Limit Deviation (°Kelvin)	Wire Wound	Thin Film
B	IEC 751 / EN 60751	± (0.30 + 0.00500 × \|temperature\|)	-196 to +600 °C	-50 to +500 °C
A	IEC 751 / EN 60751	± (0.15 + 0.00200 × \|temperature\|)	-100 to +450 °C	-30 to +300 °C
AA (= 1/3 B)	IEC 751 / EN 60751	± (0.10 + 0.00167 × \|temperature\|)	-50 to +250 °C	0 to +150 °C
1/10 B	None	± (0.03 + 0.00050 × \|temperature\|)	-50 to 100 °C	-

Depending on the class, the limiting deviation is valid only within the specified range.
Higher deviations may occur outside this range.
Aging and vibration can cause drift, further reducing accuracy.

**) The final measuring range depends on the sensor design (mineral insulated or not) and sensor type (wire wound/thin film). Repeatedly exceeding the valid range can negatively affect sensor accuracy.
The measuring range must never be exceeded to avoid damage or loss of accuracy.

Technical Advantages

Featuring thin film technology, the probe ensures fast and precise temperature readings. Its durable build and premium materials comply with IEC 751 / EN 60751 standards. Calibration certificates (DAkkS-/Accredia) can be provided optionally for applications requiring certified traceability and quality assurance.