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350 Series Testing and General Purpose Bimetal Thermometers with External Reset

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Application Brochures
Oil & Gas
Water/
Wastewater
  • Designed for general purpose testing applications, featuring a weather-resistant, tamper-proof case
  • Pocket sized model is used by inspectors, service and maintenance personnel for spot checking
  • A friction adjustment nut design provides easy calibration and maximum accuracy at a selected range
  • Single °F, single °C, and dual scale (1-3/4" and 2" models only) options available
  • Accuracy: ±1% full scale, Grade A, ASME B40.3
  • 1", 1-3/8", 1-3/4", 2" and 3" sizes - center back connection only
  • 304 Stainless Steel case and bezel
  • Standard stem lengths 5 through 18"
  • Highly sensitive bimetallic helix coil is heat-treated for stress relief, and silicone-coated to minimize pointer vibration and maximize heat transfer and response time
  • 360° groove around stem is a visual reference to show minimum immersion point
  • Adjustable pan clips are standard on 18-350, 20-350 and 30-350 models with 5" and 8" stem lengths
  • Made in the U.S.A.

     Note: Thermowells are recommended for pressure, corrosive fluids and high velocity applications.

If you are viewing on a smaller screen or with screen zoom, please use the horizontal scroll bar at the bottom of this table to see all information.

DIAL SIZES 10 1" ** 18 1-3/4" 30 3"
14 1-3/8" ** 20 2"    
CASE TYPES 350 Back connection        
STEM LENGTHS 050 5" ** 120 12"    
080 8" ** 180 18"    
TEMPERATURE RANGES
Dual Scale °F/°C
 
(Not available on 1" model)
-100/100 F/C -100 °F/C to 100 °F/C 0/250 F/C 0 °F/C to 250 °F/C 50/500 F/C 50 °F/C to 500 °F/C
-40/160 F/C -40 °F/C to 160 °F/C 20/240 F/C 20 °F/C to 240 °F/C 150/750 F/C 150 °F/C to 750 °F/C
0/140 F/C 0 °F/C to 140 °F/C 25/125 F/C 25 °F/C to 125 °F/C 200/1000 F/C 200 °F/C to 1,000 °F/C*
0/180 F/C 0 °F/C to 180 °F/C 50/300 F/C 50 °F/C to 300 °F/C    
0/220 F/C 0 °F/C to 220 °F/C 50/400 F/C 50 °F/C to 400 °F/C    
Single Scale °F -100/100 F -100 °F to 100 °F 0/250 F 0 °F to 250 °F 50/550 F 50 °F to 550 °F
-50/120 F -50 °F to 120 °F 20/240 F 20 °F to 240 °F 100/800 F 100 °F to 800 °F**
-40/160 F -40 °F to 160 °F** 25/125 F 25 °F to 125 °F** 150/750 F 150 °F to 750 °F**
0/140 F 0 °F to 140 °F 50/250 F 50 °F to 250 °F 200/1000 F 200 °F to 1,000 °F*
0/180 F 0 °F to 180 °F 50/300 F 50 °F to 300 °F    
0/200 F 0 °F to 200 °F 50/400 F 50 °F to 400 °F    
0/220 F 0 °F to 220 °F** 50/500 F 50 °F to 500 °F**    
Single Scale °C -75/175 C -75 °C to 175 °C -10/110 C -10 °C to 110 °C** 0/300 C 0 °C to 300 °C
-50/100 C -50 °C to 100 °C 0/50 C 0 °C to 50 °C** 0/400 C 0 °C to 400 °C
-50/25 C -50 °C to 25 °C 0/100 C 0 °C to 100 °C 100/400 C 100 °C to 400 °C
-50/50 C -50 °C to 50 °C 0/150 C 0 °C to 150 °C 100/550 C 100 °C to 550 °C*
-40/70 C -40 °C to 70 °C** 0/200 C 0 °C to 200 °C    
-20/120 C -20 °C to 120 °C 0/250 C 0 °C to 250 °C**    
  Consult factory for additional temperature ranges      
OPTIONS LL Polycarbonate Lens PS Pocket Sheath*** TG Tempered Glass Lens
PL Acrylic Lens ST Stainless Steel Tagging    

Note: All 316 Stainless Steel construction (case, bezel, wetted parts) is available. Please consult factory.

* Thermometers with temperature ranges 200/1000 °F and 100/500 °C are not recommended for continuous use above
   800 °F/425 °C. For intermittent use only.
** 10-350 and 14-350 models are only available in these stem lengths and ranges.
*** Available for 5" or 8" stem lengths only.
† Not available on 10-350 model. Also not available with Silicone Filles (SL) option.

If you are viewing on a smaller screen or with screen zoom, please use the horizontal scroll bar at the bottom of this table to see all information.

  MODELS SPECIFICATIONS
Case & Bezel All 350 Series 304 Stainless Steel; 316 Stainless Steel optional
Lens 14-350
All other 350 Series models
Convex Polycarbonate
Instrument glass
Pointer All 350 Series Aluminum, black finished
Stem diameter All 350 Series 0.150" (3.81 mm)
Accuracy All 350 Series ±1% full scale, Grade A, ASME B40.3
Dial All 350 Series Anodized Aluminum with large black numbers and graduations
Wetted parts All 350 Series 304 Stainless Steel; 316 Stainless Steel optional
Hermetic seal All 350 Series Per ASME B40.3 dustproof and leakproof
Bimetal coil All 350 Series Silicone coated helix coil on ranges below 500 °F for vibration dampening, maximum heat transfer and response time
Over temperature limits All 350 Series Up to 250 °F 100%; 250 °F to 550 °F 50%; 550 °F to 1,000 °F continuous use up to
800 °F; intermittent use over 800 °F
Recalibrator All 350 Series External reset

Options & Accessories

  • Acrylic Lens (PL)
  • Certificate of Conformance
  • Mounting Brackets – Consult Factory
  • Pocket Sheath (PS), available for 5" or 8" stem lengths only
  • Polycarbonate Lens (LL), should not be used where case temperature exceeds 300 °F/150 °C
  • Stainless Steel Tagging (ST)
  • Tempered Glass Lens(TG), not available on 10-350 model or with Silicone Filled (SL) option
  • Certified calibration provides the user with a serial numbered thermometer along with a calibration sheet against a primary temperature standard
  • Traceable to the National Institute of Standards and Technology
  • Various sizes and types of mounting flanges are available

WARNING: This product can expose you to chemicals including Nickel, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov

  • Special ranges and dials with company names, company logos, part numbers, telephone numbers, or almost any custom layout is available
  • The 304 Series Stainless Steel stem is welded at the tip and case for hermetic seal
  • 1/4" (6.35 mm) diameter is standard for lengths up to 24" (609 mm)
  • 3/8" diameter, sharp tip options and optional 316SS wetted parts are also available

WARNING: This product can expose you to chemicals including Nickel, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov

Thermowells allow a temperature instrument to be removed and replaced without shutting down and draining the process, and reduce the possibility of damage to the temperature instrument.

View NOSHOK Thermowells


WARNING: This product can expose you to chemicals including Nickel, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov