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Thermocouple Reference Tables - Type K  -450 to 40°F

Revised Thermocouple Reference Tables

TYPE K


NONE ESTABLISHED
Thermocouple Grade

Nickel - Chromium
vs.
Nickel - Aluminum

Extension Grade


MAXIMUM TEMPERATURE RANGE
Thermocouple Grade

- 328 to 2282°F
- 200 to 1250°C
Extension Grade
32 to 392°F
0 to 200°C

LIMITS OF
ERROR

(whichever is Greater)
Standard: 2.2°C or 0.75% Above 0°C
2.2°C or 2.0% Below 0°C
Special: 1.1°C or 0.4%

COMMENTS, BARE WIRE ENVIRONMENT:
Clean Oxidizing and Inert; Limited Use in Vacuum or Reducing; Wide Temperature Range; Most Popular Calibration

TEMPERATURE
IN DEGREES  °F

REFERENCE JUNCTION
AT 32°F






















░F-10-9-8-7-6-5-4-3-2-10░F
Thermoelectric Voltage in mV
-450-6.458-6.457-6.457-6.456-6.456-450
-440-6.456-6.455-6.454-6.454-6.453-6.452-6.451-6.450-6.449-6.448-6.446-440
-430-6.446-6.445-6.444-6.443-6.441-6.440-6.438-6.436-6.435-6.433-6.431-430
-420-6.431-6.429-6.427-6.425-6.423-6.421-6.419-6.416-6.414-6.411-6.409-420
-410-6.409-6.406-6.404-6.401-6.398-6.395-6.392-6.389-6.386-6.383-6.380-410
-400-6.380-6.377-6.373-6.370-6.366-6.363-6.359-6.355-6.352-6.348-6.344-400
-390-6.344-6.340-6.336-6.332-6.328-6.323-6.319-6.315-6.310-6.306-6.301-390
-380-6.301-6.296-6.292-6.287-6.282-6.277-6.272-6.267-6.262-6.257-6.251-380
-370-6.251-6.246-6.241-6.235-6.230-6.224-6.218-6.213-6.207-6.201-6.195-370
-360-6.195-6.189-6.183-6.177-6.171-6.165-6.158-6.152-6.146-6.139-6.133-360
-350-6.133-6.126-6.119-6.113-6.106-6.099-6.092-6.085-6.078-6.071-6.064-350
-340-6.064-6.057-6.049-6.042-6.035-6.027-6.020-6.012-6.004-5.997-5.989-340
-330-5.989-5.981-5.973-5.965-5.957-5.949-5.941-5.933-5.925-5.917-5.908-330
-320-5.908-5.900-5.891-5.883-5.874-5.866-5.857-5.848-5.840-5.831-5.822-320
-310-5.822-5.813-5.804-5.795-5.786-5.776-5.767-5.758-5.749-5.739-5.730-310
-300-5.730-5.720-5.711-5.701-5.691-5.682-5.672-5.662-5.652-5.642-5.632-300
-290-5.632-5.622-5.612-5.602-5.592-5.581-5.571-5.561-5.550-5.540-5.529-290
-280-5.529-5.519-5.508-5.497-5.487-5.476-5.465-5.454-5.443-5.432-5.421-280
-270-5.421-5.410-5.399-5.388-5.377-5.365-5.354-5.343-5.331-5.320-5.308-270
-260-5.308-5.296-5.285-5.273-5.261-5.250-5.238-5.226-5.214-5.202-5.190-260
-250-5.190-5.178-5.166-5.153-5.141-5.129-5.117-5.104-5.092-5.079-5.067-250
-240-5.067-5.054-5.042-5.029-5.016-5.003-4.991-4.978-4.965-4.952-4.939-240
-230-4.939-4.926-4.913-4.900-4.886-4.873-4.860-4.847-4.833-4.820-4.806-230
-220-4.806-4.793-4.779-4.766-4.752-4.738-4.724-4.711-4.697-4.683-4.669-220
-210-4.669-4.655-4.641-4.627-4.613-4.599-4.584-4.570-4.556-4.542-4.527-210
-200-4.527-4.513-4.498-4.484-4.469-4.455-4.440-4.425-4.411-4.396-4.381-200
-190-4.381-4.366-4.351-4.336-4.321-4.306-4.291-4.276-4.261-4.246-4.231-190
-180-4.231-4.215-4.200-4.185-4.169-4.154-4.138-4.123-4.107-4.091-4.076-180
-170-4.076-4.060-4.044-4.029-4.013-3.997-3.981-3.965-3.949-3.933-3.917-170
-160-3.917-3.901-3.885-3.869-3.852-3.836-3.820-3.803-3.787-3.771-3.754-160
-150-3.754-3.738-3.721-3.705-3.688-3.671-3.655-3.638-3.621-3.604-3.587-150
-140-3.587-3.571-3.554-3.537-3.520-3.503-3.486-3.468-3.451-3.434-3.417-140
-130-3.417-3.400-3.382-3.365-3.348-3.330-3.313-3.295-3.278-3.260-3.243-130
-120-3.243-3.225-3.207-3.190-3.172-3.154-3.136-3.119-3.101-3.083-3.065-120
-110-3.065-3.047-3.029-3.011-2.993-2.975-2.957-2.938-2.920-2.902-2.884-110
-100-2.884-2.865-2.847-2.829-2.810-2.792-2.773-2.755-2.736-2.718-2.699-100
-90-2.699-2.680-2.662-2.643-2.624-2.605-2.587-2.568-2.549-2.530-2.511-90
-80-2.511-2.492-2.473-2.454-2.435-2.416-2.397-2.378-2.359-2.339-2.320-80
-70-2.320-2.301-2.282-2.262-2.243-2.223-2.204-2.185-2.165-2.146-2.126-70
-60-2.126-2.106-2.087-2.067-2.048-2.028-2.008-1.988-1.969-1.949-1.929-60
-50-1.929-1.909-1.889-1.869-1.850-1.830-1.810-1.790-1.770-1.749-1.729-50
-40-1.729-1.709-1.689-1.669-1.649-1.628-1.608-1.588-1.568-1.547-1.527-40
-30-1.527-1.507-1.486-1.466-1.445-1.425-1.404-1.384-1.363-1.343-1.322-30
-20-1.322-1.301-1.281-1.260-1.239-1.218-1.198-1.177-1.156-1.135-1.114-20
-10-1.114-1.094-1.073-1.052-1.031-1.010-0.989-0.968-0.947-0.926-0.905-10
0-0.905-0.883-0.862-0.841-0.820-0.799-0.778-0.756-0.735-0.714-0.6920
░F-10-9-8-7-6-5-4-3-2-10░F
░F012345678910░F
0-0.692-0.671-0.650-0.628-0.607-0.586-0.564-0.543-0.521-0.500-0.4780
10-0.478-0.457-0.435-0.413-0.392-0.370-0.349-0.327-0.305-0.284-0.26210
20-0.262-0.240-0.218-0.197-0.175-0.153-0.131-0.109-0.088-0.066-0.04420
30-0.044-0.0220.0000.0220.0440.0660.0880.1100.1320.1540.17630
400.1760.1980.2200.2420.2640.2860.3080.3300.3530.3750.39740
░F012345678910░F


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