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Watlow Style AQ Metal Transition
MI Thermocouple
Mineral Insulated - Miniature Metal Transition

The Watlow Style AQ Mineral Insulated Thermocouple temperature sensor "miniature metal transition" style come with a metal transition with 300°F potting standard. Because it is constructed with XACTPAK mineral insulation, the thermocouple is protected from moisture, thermal shock, high temperatures and high pressure.

Achieving specified temperature levels is critical to industrial processes. It's imperative that temperature sensors are designed and manufactured to exacting specifications for accuracy and reliability. Watlow is committed to providing you with the most accurate, high-integrity temperature measurement products possible. Watlow offers the greatest breadth of contact temperature measurement sensors and related components. Whatever your temperature sensing needs, Watlow can provide the optimum configuration, with the accuracy you require.

Performance Capabilities:

  • Watlow MI thermocouples easily handle temperatures up to 1200°C (2200°F).
  • They meet or exceed initial calibration tolerances per ASTM E 230.
  • Diameters as small as 0.020 in (0.5mm)
  • Flexiblity of the XACTPAK material allows you to bend the thermocouple without risk of cracking

To order a Watlow Style AQ Single Element Thermocouple build the desired 15-digit model part number using the ordering information form below.
Custom Ordering Information -
Watlow Style AQ Single Element Thermocouples
A Q ___ ___ 0 ___ ___ ___ ___ ___ ___ ___ ___ ___ ___
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
To order, make a selection in each category below, enter the quantity needed,
then click the "submit" button at the bottom of the page.
The part number and price will be displayed on the next page.
NOTE: Prices shown are for orders of 5 pieces or more.
There is a higher price for low quantity orders which is shown on next page.
1-2 Construction Style
AQ = Mineral insulated miniature metal transition thermocouple

3. Sheath Diameter (choose B, C, D or E)
Limited Availability - consult yellow chart below for availability with sheath material & calibration type.
B = 0.020 inch diamater
C = 0.032 inch diamater
D = 0.040 inch diamater
E = 0.063 inch diamater

4. Lead Wire Construction Type (choose A, B, C or D)
A = Solid glass
B = Stranded glass (only available with Sheath Diameter Option E-0.063)
C = Solid FEP
D = Stranded FEP (only available with Sheath Diameter Option E-0.063)

5. Fittings (choose one)- please note sheath size availability
0 = None
A = Fixed single thread 1/8 NPT 303SS - sheath sizes 0.063 to 0.250
G = Adjustable compression TFE Gland 1/8 NPT 303SS - sheath sizes 0.063 to 0.188
L = Non-adjustable compression 1/8 NPT 303SS - sheath sizes 0.063 to 0.250
Q = Adjustable compression Lava Gland 1/8 NPT 303SS - sheath sizes 0.063 to 0.188
2 = Flat weld pad - 304SS - all sheath sizes
5 = Milled slot weld pad - 304SS - all sheath sizes

6. Lead Wire Termination (choose A, B , C, F, G, H, T, U or W)
A = Standard plug
B = Standard jack
C = Standard plug with mating connector
F = Miniature plug
G = Miniature jack
H = Miniature plug with mating connector
T = Standard 1-1/2 inch split leads
U = 1-1/2 inch split leads with spade lugs

7. Sheath Material - Limited Availability - consult yellow chart below for availability with sheath diameter & calibration type.
A = 304SS
F = 316SS
Q = Alloy 600 (Type K only)

8-9. Sheath Length "L" (in whole inches) - (enter two digits 01 to 99)
Tens - Ones

10. Sheath Length "L" (fractional inches) - (choose 0 or 4)
0 = 0
4 = 1/2

11. Junction Type (choose E, G or U)
E = Exposed
G = Grounded
U = Ungrounded

12. Calibration (choose E, J, K,T, 2, 3, 4 or 8)
Limited Availability - consult yellow chart below for availability with sheath diameter & sheath material.
J = Standard Limits Type J
K = Standard Limits Type K
3 = Special Limits Type J
4 = Special Limits Type K

13-14. Lead Length "E" (feet) - (enter two digits 01 to 99)
Tens - Ones

15. Special Requirements
0 = Standard 300°F (150°C) potting
M = 500°F (260°C) potting

ENTER QUANTITY (Higher price applies for quantities less than 5 pieces)


Options 3, 7 & 12
Calibration & Sheath Availability

Sheath Diameter
Sheath
Material		 0.020
(B)		 0.032
(C)		 0.040
(D)		 0.063
(E)
304SS
(A)		 K
4		 K
4		 J, K
3, 4		 J, K
3, 4
316SS
(F)		 --
--		 --
--		 K
4		 J, K
3, 4
Alloy 600
(Q)		 K
4		 K
4		 K
4		 J, K
3, 4
This page last modified on 1/17/2023
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