Heavy Duty Needle Probe BT Series

Anritsu BT series probes feature needle tips that can be inserted into semi-solid materials. Needle tips for models with replaceable tips can be purchased separately. Specific components may be combined to customize products for the needs of a customer's specific application


Anritsu BT

Type E Model : BT-31E-TC1-ANP
Type K Model : BT-31K-TC1-ANP

Anritsu BT31
Temp.range : -200 to 300°C
Tolerance : ±2.5°C (at 100°C)
Response time : 1.5s
Durability : Can not evaluate because of special-application


Type E Model : BT-92E-TC1-ANP
Type K Model : BT-92K-TC1-ANP

Anritsu BT92
Temp.range : -200 to 500°C
Tolerance : ±2.5°C (at 100°C)
Response time : 3s
Durability : More than 1 year



Type E Model : BT-72E-TC1-ANP
Type K Model : BT-72K-TC1-ANP

Anritsu BT72
Temp.range : -200 to 300°C
Tolerance : ±2.5°C (at 100°C)
Response time : 1.5s
Durability : Can not evaluate because of special-application


Type E Model : BT-22E-TC1-ANP
Type K Model : BT-22K-TC1-ANP

Anritsu BT22
Temp.range : -200 to 300°C
Tolerance : ±2.5°C (at 100°C)
Response time : 1.5s
Durability : Can not evaluate because of special-application



Type E Model : BT-82E-TC1-ANP
Type K Model : BT-82K-TC1-ANP

Anritsu BT82
Temp.range : -200 to 500°C
Tolerance : ±2.5°C (at 100°C)
Response time : 3s
Durability : Can not evaluate because of special-application



Type E Model : BT-11E-TC1-ANP
Type K Model : BT-11K-TC1-ANP

Anritsu BT11
Temp.range : -200 to 210°C
Tolerance : ±2.5°C (at 100°C)
Response time : 0.5s
Durability : More than 6 months




Model number*1 BT-1* BT-2*

BT-3*
BT-4*
BT-5*
BT-6*
BT-7*

BT-8* BT-9*
Thermocouple Type Type E or K
Temp.range*2 -200 to 210°C -200 to 300°C -200 to 300°C -200 to 500°C -200 to 500°C
Tolerance*3 0°C ±2.5°C ±2.5°C ±2.5°C ±2.5°C ±2.5°C
100°C ±2.5°C ±2.5°C ±2.5°C ±2.5°C ±2.5°C
200°C ±2.5°C ±2.5°C ±2.5°C ±2.5°C ±2.5°C
300°C - ±2.5°C ±2.5°C ±2.5°C ±2.5°C
400°C - - - ±3.0°C ±3.0°C
500°C - - - ±3.8°C ±3.8°C
Tolerance calculation method
t:Temperature(°C)
At within temperature range
1)-40°C ≦ t ≦ 500°C:±2.5°C or ± (0.0075 × | t |)°C, whichever is greater
2)-167°C ≦ t < 40°C: ±3.5°C
3)-200°C ≦ t < -167°C: ±7.0°C
Response time*4 0.5s 1.5s 1.5s 3s 3s
Durability*5 C(More than 6 months) S(Can not evaluate because of special-application) B(More than 1 year)
Pipe material Stainless(SUS304)
Grip material Phenol Resin Aluminum Nylon Resin
replaceable unreplaceable unreplaceable replaceable replaceable unreplaceable
Repair*6 Non-repairable


*1 The asterisk (*) is replaced by the number of the model name you selected. The model number after thermocouple type is omitted.


*2 The operating temperature limit is determined by the allowable temperature limit of the sensor head contacts the measurement target. Note that the operatingtemperature limit is not the same as the allowable temperature limits of the grip, cable, and plug.


*3 Tolerance is defined in the operating temperature range of -196°C or higher at the internal temperature with sufficient heat capacity. For tolerance at temperature not listed in the above table, please refer to calculation method of tolerance.


*4 The response time given for our temperature measuring probes is the time required to detect 99% of the true value when measuring the temperature of boiling water or vapor.


*5 When used correctly, virtually no deterioration occurs in these products due to temperature measuring operations. Therefore, the durability is based on the ease with which impact results in damage. The durability is defined as 1 year or more in little or no degradation of quality.


*6 Please refer to page repair.

Available models:

BT-11K BT-12K
BT-21K BT-22K
BT-91K BT-92K

Needle exchange type
Grip with 5 pcs of needles
BT-31K BT-32K
BT-41K BT-42K
BT-51K BT-52K
BT-61K BT-62K
BT-71K BT-72K
BT-81K BT-82K

Exchange needle 5 pcs/set
BTN-31K BTN-32K
BTN-41K BTN-42K
BTN-51K BTN-52K
BTN-61K BTN-62K
BTN-71K BTN-72K
BTN-81K BTN-82K


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Specific References

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