Thermocouple Heads. MOST POPULAR MODELS HIGHLIGHTED! To Order (Specify Model No.) B-9 76 (3) Model Price Material Type Number Each 48 (1 7 8)

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1 Thermocouple Heads Dimensions: mm (in) MOST POPULAR MODELS HIGHLIGHTED! Model Price Material Type Number Each 48 ( 7 8) (3 3 8) 54 (2 8) NB-0 $23 Cast Iron NB NB-2 26 NB (3 5 8) NB Cast Iron NB4 Aluminum 67 (2 5 8) Burnished NB2-0 $23 Die-Cast NB2 NB Aluminum NB NB3-0 $25 Aluminum NB3 NB NB (2 5 6) Aluminum NB4 NB4-0 $23 NB (3 6) 95 (3.8) NB5-0 $40 Cast Iron NB5 NB NB NB2 Burnished Die Cast Aluminum NB5 Cast Iron NB6-0 $23 Aluminum NB6 NB NB Ordering Examples: NB-0, cast iron head no terminal block, $23. NB6-2, deep base aluminum head a 2-terminal terminal block (for thermocouple element), $ (3 8) 92 (3 5 8) NB3 Aluminum 0 (4 5 6) NB6 Deep Base B-9

2 Threaded Openings Wt Protection Extension Terminals (oz) Tube Entry Wire Entry Features 0 = no terminal block 22 2 = single element 23 4 = duplex element 24 0 = no terminal block 5 2 = single element 6 4 = duplex element 6 2 Standard for 8 to 4" OD wire Rugged construction Screw cover inside thread Small and lightweight Gasketed, weather resistant Burnished finish Medium size Terminal Blocks for Connection Heads (Order separately or included heads -2 or -4 suffixes) Ceramic Block Nickel Plated Brass Terminals for NB2 Head for Gage 4 Wire Maximum MOST POPULAR MODELS HIGHLIGHTED! Model No. Price Terminals Wt g (oz) CH-49 $4 2 = single 43 ( 2) CH = duplex 57 (2) B 0 = no terminal block 8 2 = single element = duplex element = no terminal block 2 2 M6 x.5 2 = single element 3 8 M0 x 4 = duplex element 3 4 works 8 NPT 0 = no terminal block 56 2 = single element 57 4 = duplex element 58 Hinge top Lightweight aluminum Metric Uses miniature barrier strip Rugged cast iron High-temperature painted finish Ceramic Blocks Brass Terminals for Type NSA, NSB, NSC, and NBS Connection Heads for Max 8-Gage Wire Model No. Price Terminals Wt g (oz) CH-47 $6 2 = single 85 CH = duplex 28 (4 2) 0 = no terminal block = single element = duplex element Deep base Lightweight aluminum Ceramic Blocks Brass Terminals for Type NBN, NB3, NBG, NXT, NB, and NBB Connection Heads for Max 4-Gage Wire CH-. CH-78. Model No.* Price Terminals Wt g (oz) CH-73 $3 2 = single 35 ( 4) CH = duplex 50 ( 3 4) *For NB heads, add suffix -NB to model number; no additional charge. Ceramic CH-83. Ceramic CH-84. CH-77. Model Wt No. Price Desc Material Term g (oz) CH-83 $4 For NB4 Ceramic 2 28 () CH-84 4 For NB4 Ceramic 4 28 () CH- 4 For NBG, 2 77 (2 2) NB5, NB6, CH (2 2) NB, NB9 CH-78 4 and NB (2 2) These are alternatives, not standard -2 or -4 suffixes on thermocouple heads. All models shown smaller than actual size. B-0

3 Thermocouple Heads Dimensions: mm (in) 6.5 (2.4) MOST POPULAR MODELS HIGHLIGHTED! Model Price Material Type Number Each 93 (3.7) 68 (2.7) NB7-0 $23 Aluminum NB7 NB NB NB8-0 $23 Aluminum NB8 NB NB NB7 Flip Top 70 (2.8) NB0 Miniature Glass NB9-0 $23 Reinforced NB9 NB Nylon NB (2.4) NB0-0 $23 NB0 NB NB (2.6) NB-0 $23 Aluminum NB NB-2 26 NB-4 28 NB2-0 $23 Aluminum NB2 NB NB NB8 Domed Top NB Miniature Aluminum Cast NEPA NEPA-0 $85 Aluminum NEPA-2 88 Body and NEPA-4 9 Cap NEPB-0 $85 NEPB NEPB-2 88 NEPB-4 9 NSA-0 $50 NSA NSA-2 53 NSA NSB-0 $50 Cast Iron NSB NSB-2 53 NSB-4 55 NB9 Glass Reinforced Nylon 87 NB2 Low Profile NSC-0 $50 NSC NSC-2 53 NSC-4 55 Ordering Examples: NB0-0 is a bakelite head no terminal block, $23. NB7-4 is a flip-top aluminum head a 4-terminal terminal block (for 2 thermocouple elements), $28. B-

4 Threaded Openings Wt Protection Extension Terminals (oz) Tube Entry Wire Entry Features 08 (4 4) B 0 = no terminal block = single element = duplex element Lightweight aluminum construction Flip top 0 = no terminal block 8 2 = single element 9 4 = duplex element 0 Small and lightweight Domed top Gasketed, weather resistant Secure screw thread Medium size 08 (4 4) (3 3 8) 0 = no terminal block 5 2 = single element 6 4 = duplex element 7 wtih 0 = no terminal block = single element NPT 4 = duplex element = no terminal block = single element NPT 4 = duplex element = no terminal block = single element = duplex element = no terminal block = single element = duplex element = no terminal block = single element = duplex element = no terminal block = single element 46 4 = duplex element 48 0 = no terminal block = single element 44 4 = duplex element 46 0 = no terminal block 36 NPT 3 2 = single element 40 4 = duplex element 42 Very lightweight construction Ultra lightweight construction High temperature plastic IP 67 Sealed Lightweight construction Low profile Lightweight construction Explosion resistant head* Rated for: Class III Class I, Group C, D Class II, Groups E, F, G Screw cover Rugged construction Screw cover inside thread Standard heavyduty head Cover equipped safety chain (readily removed out tools) NSA, NSB, NSC Cast Iron 92 (3 5 8) 89 (3 2) (4 3 8) NEPA and NEPB Explosion Resistant Discount Schedule -0 Units..... Net -24 Units.... 5% 0 and Up, Units.. 0% Consult Sales NEMA 4X (IP66) Rated Heads Available. Please Consult our Technical Quotations Department *Note: The use of explosion resistant heads does not imply that a complete assembly is either explosion proof or intrinsically safe. It is the user s responsibility to determine suitability of materials for an installation. B-2

5 Thermocouple Heads 08 (4 4) MOST POPULAR MODELS HIGHLIGHTED! Model Price Material Type Number Each 08 (4 4) NBN-0 $9 Nylon NBN NBN-2 22 NBN-4 24 NBN Nylon 83 (3 4) NBS Cast Aluminum (3 3 8) Glass NBG-0 $9 Fiber NBG NBG-2 22 NBG (3 2) 08 (4 4) 33 (5 4) NBB-0 $23 Die-Cast NBB NBB-2 26 Aluminum NBB-4 29 (4 3 8) 89 (3 2) NBS NBS-0 $30 Cast NBS NBS-2 34 Aluminum NBS (4) NBG Glass Fiber NEP-T Cast Iron Aluminum Cap Explosion Resistant 0 (4) 7 (4 5 8) Cast Iron NEP-T NEP-T0 $75 Aluminum NEP-T2 77 Cap NEP-T (4) NXT-0 $27 Aluminum NXT NXT-2 30 NXT-4 32 NBB Die-Cast Aluminum Dimensions: mm (in) 73 (2 7 8) Discount Schedule -0 Units..... Net -24 Units.... 5% 0 and Up, Units.. 0% Consult Sales HEPTX Feraloy Iron Alloy NXT Aluminum 67 (2 5 8) 08 (4 4) 08 (4 4) Feraloy HEP-TX-0 $80 Iron Alloy HEP-TX HEP-TX-2 83 HEP-TX-4 85 HEP-TX70 85 Note: Barrier strips are utilized when more than 4 connections are required. e.g.: dual element 3-wire RTD. Transmitter may be mounted in most heads. Transmitter may not be mounted in NB4 and only the smallest transmitters can fit the NB2 head by special order. Check transmitter dimensions identified by individual product specifications as well as the internal dimensions for the head given in Section Z. Ordering Example: NEP-T4, cast iron thermocouple head aluminum cap, $79. B-3

6 Threaded Openings Wt Protection Extension Terminals (oz) Tube Entry Wire Entry Features 0 = no terminal block 3 2 = single element 4 4 = duplex element 5 Supplied nylon bushing for plastic covered extension wire to 0.24" to 0.40" OD Easy access to terminal block Suitable for use in ambient temperatures to2 C (250 ) F Moisture and dust-resistant Ideal for chemical plant use Excellent corrosion resistance Very light weight Bi-Metal Thermometers for Head & Well Assemblies See Page E- for Additional Models Model J (Shown) $ 4 2 2", 4" and 6" Lengths B 0 = no terminal block 6 2 = single element 7 4 = duplex element 8 0 = no terminal block 6 2 = single element 7 4 = duplex element 8 0 = no terminal block 5 2 = single element 8 4 = duplex element 20 0 = no terminal block 75 2 = single element 4 = duplex element 0 = no terminal block 2 = single element = duplex element = no terminal block 62 2 = single element 64 NPT NPT 4 = duplex element = for mounting TX70 Transmitter Noncombustible Heat proof Acid resistant Alkali resistant Lightweight Bayonet cover readily removed out tools Easy access to terminal block Moisture and dust-resistant Lightweight Cover, equipped safety chain,easily removed Moisture and dust-resistant Explosion resistant head* Rated for Class I, Group C, D Class II, Groups E, F, G Class III Screw cover inside thread Tall cover hinge top Ideal for big transmitters Medium size Explosion resistant head for 2-wire transmitter* Rated for: Class I, Div &2, Groups C, D Class II, Div Groups E, F, G, Class III Moisture/dust-resistant Shown smaller than actual size. Head Can Be Tilt- Adjusted Through a Full 90 Angle All Stainless Steel Welded Construction External Recalibration Rust and Corrosion Proof, Leakproof, Hermetically Sealed Sensitive Bi-Metal Element Silicone Dampened for Minimum Pointer Vibration and Maximum Heat Transfer Accuracy % of Range Use of Thermowell Is Recommended for Pressure Applications Overrange Protection 50% Up to 500 F Thermowells Accept: Models A, B, G, H, L, R and S Ceramic Fiber Insulated Thermocouple Elements for Head & Well Assemblies Standard 2" Long Thermocouple Elements Insulation Temperature Rating Up to 2200 F Available In Type K, E and J Calibrations *Note: The use of explosion resistant heads does not imply that a complete assembly is either explosion proof or intrinsically safe. It is the user s responsibility to determine suitability of materials for an installation. See Additional Probes in Section A. To Order (Specify Model Number) 300 mm (2") Long Insulation, Plus 3 mm ( 2 ") Stripped Ends Standard Price Price Price AWG Price Add'I Price Add'l Price Add'l Wire 2" 6" or 2" *6" or 2" 6" or Size Type K Length Fraction Type E Length Fraction Type J Length Fraction 4 XC-4-K-2 $7 $3 XC-4-E-2 $7 $3 XC-4-J-2 $7 $3 20 XC-20-K XC-20-E XC-20-J XC-24-K XC-24-E XC-24-J * 6" = 50 mm ** Silica models also available, see page A-34. B-4 XC Series Starts at $ 6 Ordering Example: XC-20-K-2, 20 AWG Type K thermocouple, 300 mm (2') long high temperaturte Nextel TM braided ceramic fiber insulation, $6.