Pt100 Table

Skip to search Skip to main content Skip to navigation

Alpha = 0.00385, ITS-90

Temperature values from −200 °C to +850 °C in 5 °C increments

^°C	Ohm Ω	^°C	Ohm Ω	^°C	Ohm Ω	^°C	Ohm Ω	^°C	Ohm Ω	^°C	Ohm Ω
-200	18.52	-20	92.16	160	161.05	340	226.21	520	287.62	700	345.28
-195	20.68	-15	94.12	165	162.91	345	227.96	525	289.27	705	346.83
-190	22.83	-10	96.09	170	164.77	350	229.72	530	290.92	710	348.38
-185	24.97	-5	98.04	175	166.62	355	231.47	535	292.56	715	349.92
-180	27.10	0	100.00	180	168.48	360	233.21	540	294.21	720	351.46
-175	29.22	5	101.95	185	170.33	365	234.95	545	295.85	725	352.99
-170	31.34	10	103.90	190	172.17	370	236.7	550	297.49	730	354.53
-165	33.45	15	105.85	195	174.01	375	238.44	555	299.12	735	356.06
-160	35.54	20	107.79	200	175.86	380	240.18	560	300.75	740	357.59
-155	37.63	25	109.73	205	177.70	385	241.91	565	302.38	745	359.12
-150	39.72	30	111.67	210	179.53	390	243.64	570	304.01	750	360.64
-145	418.0	35	113.61	215	181.36	395	245.36	575	305.63	755	362.15
-140	43.88	40	115.54	220	183.19	400	247.09	580	307.25	760	363.67
-135	45.95	45	117.47	225	185.01	405	248.81	585	308.86	765	365.18
-130	48.00	50	119.40	230	186.84	410	250.53	590	310.48	770	366.70
-125	50.06	55	121.32	235	188.65	415	252.24	595	312.10	775	368.20
-120	52.11	60	123.24	240	190.47	420	253.96	600	313.71	780	369.71
-115	54.15	65	125.17	245	192.28	425	255.67	605	315.32	785	371.21
-110	56.19	70	127.08	250	194.10	430	257.38	610	316.92	790	372.71
-105	58.22	75	128.99	255	195.90	435	259.08	615	318.52	795	374.21
-100	60.26	80	130.90	260	197.71	440	260.78	620	320.12	800	375.70
-95	62.29	85	132.81	265	199.51	445	262.48	625	321.72	805	377.19
-90	64.30	90	134.71	270	201.31	450	264.18	630	323.30	810	378.68
-85	66.31	95	136.61	275	203.10	455	265.87	635	324.88	815	380.17
-80	6833	100	138.51	280	204.90	460	267.56	640	326.48	820	381.65
-75	70.33	105	140.39	285	206.70	465	269.25	645	328.06	825	383.12
-70	72.33	110	142.29	290	208.48	470	270.93	650	329.64	830	384.60
-65	74.33	115	144.18	295	210.27	475	272.61	655	331.21	835	386.07
-60	76.33	120	146.07	300	212.05	480	274.29	660	332.79	840	387.55
-55	78.32	125	147.95	305	213.83	485	275.96	665	334.36	845	389.01
-50	80.31	130	149.83	310	215.61	490	277.64	670	335.93	850	390.48
-45	82.29	135	151.71	315	217.39	495	279.31	675	337.50
-40	84.27	140	153.58	320	219.15	500	280.98	680	339.06
-35	86.25	145	155.46	325	220.91	505	282.64	685	340.62
-30	88.22	150	157.33	330	222.68	510	284.30	690	342.18
-25	90.19	155	159.20	335	224.45	515	285.95	695	343.73

Note: At 100 ^°C, the resistance is 138.51 Ω (DIN 43760).

Innovative Solutions from DwyerOmega

Series PR-10 RTD Probe

RTD temperature probe for general-purpose measurements in liquids, solids, and equipment surfaces. Features a 316 stainless steel probe, Class A RTD accuracy, insulated lead wires with shrink-tube strain relief, and configurable temperature ranges from −50 ^°C to 600 ^°C (−58 ^°F to 1,112 ^°F).

Buy Now

Self-Adhesive Polyimide Fast Response RTD

Series HSRTD FLEXIBLE SEALED PFA RTD SENSOR

Flexible, hermetically sealed RTD sensor designed for moisture- and chemical-prone environments. Features PFA-insulated cable, accuracy options up to Class A, 1/3 DIN, or 1/10 DIN, and a temperature range from −60 ^°C to 260 ^°C, with cryogenic options available.

Buy Now

Series RTD-831 Bolt-On RTD Sensor

Bolt-on RTD surface sensor for accurate temperature measurement on flat surfaces. Features an aluminum flag housing, Pt100 or Pt1000 RTD element, bolt-on or cemented installation, and temperature ranges from −60 ^°C to 230^°C standard or up to 450 ^°C for high-temperature versions (−76^°F to 842 ^°F).

Buy Now

Pt100 Resistance vs. Temperature Reference

The temperature-dependent resistance value R(t) for Pt100 sensors is defined by the following standard equations.

For temperatures t ≥ 0 ^°C

R(t) = R₀ · (1 + A · t + B · t²)

Constants:

A = 3.9083 × 10⁻³ ^°C⁻¹
B = −5.775 × 10⁻⁷ ^°C⁻²
R₀ = 100 Ω

For temperatures t < 0 ^°C

R(t) = R₀ · [1 + A · t + B · t² + C · (t − 100) · t³]

Constants:

A = 3.9083 × 10⁻³ ^°C⁻¹
B = −5.775 × 10⁻⁷ ^°C⁻²
C = −4.183 × 10⁻¹² ^°C⁻⁴
R₀ = 100 Ω

Accuracy Classes

Class A: Δt = ±(0.15 + 0.002 · |t|) ^°C

Class B: Δt = ±(0.3 + 0.005 · |t|) ^°C

Related Products Learn more about the RTD-850-Series Bolt-On RTD Sensors with Threaded SS Housing Order Now

Pt100 Table

Alpha = 0.00385, ITS-90

Innovative Solutions from DwyerOmega

Pt100 Resistance vs. Temperature Reference

For temperatures t ≥ 0 °C

For temperatures t < 0 °C

Accuracy Classes

For temperatures t ≥ 0 ^°C

For temperatures t < 0 ^°C