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CTP5000 -- Reference Thermometer
Category: TEMPERATURE, CALIBRATORS
Model: Thermometer Standard, Thermometer Standards
Avaibility: AVAILABLE
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The CTP5000 provides a full range platinum resistance thermometers (PRTs) for use in every application from standards calibration to site temperature measurement. If the ‘off the shelf’ range will not suit the needs the thermometers can be supplied custom manufactured to almost any specification.
WIKA also provide a range of standards resistors for use when calibrating platinum resistance thermometers.
Using calibrated probes with a precise thermometer there is a choice between storing the calibration data into the memory of the instrument or if using ASL SMART probes for ease of convenience, the calibration is stored in an electronic memory chip located in the connector. Therefore moving the SMART probe between channels or instruments is easy as the calibration data is stored in the SMART-probe connector, no need to enter the calibration data into the instrument channel now being used.
For calibration, the test items and the standard thermometer are brought to the same temperature in a temperature conditioning unit. As soon as a stable temperature is reached, the test items are read or their output signals are measured (resistance, thermoelectric voltage, standard signal) and compared with the standard thermometer.
Using this comparison method, the measuring uncertainty can be considerably reduced because not only the display of the temperature conditioning unit is taken into consideration.
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Model CTP5000-170 |
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Specific probe data 1) |
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Temperature range |
-196 … +170 °C [-321 ... +338 °F] |
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Resistance at 0 °C [32 °F] |
100 ? |
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Temperature coefficient |
0.00385 |
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R(Ga)/R(tpw) |
Ratio less than 1.11807 |
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Annual drift |
±10 mK |
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Recommended measurement current |
1 mA |
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Self heating error in water at 0 °C [32 °F] |
2 ... 5 mK |
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Sheath material |
Metal alloy |
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Dimensions |
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Probe diameter |
d = 6 mm [0.24 in] |
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Probe length |
l = 350 mm (immersion depth max. 300 mm, min. 100 mm) |
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Cable |
l = 13.78 in (immersion depth max. 11.81 in, min. 3.94 in) |
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Length |
2 m [6.56 ft] |
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Connection |
Bare wire, DIN plug or SMART connector |
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Specifications |
Model CTP5000-200 |
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Specific probe data 1) |
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Temperature range |
-50 … +200 °C [-58 ... +392 °F] |
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Resistance at 0 °C [32 °F] |
100 ? |
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Temperature coefficient |
0.00385 |
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R(Ga)/R(tpw) |
Ratio less than 1.11807 |
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Annual drift |
±10 ... ±20 mK |
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Recommended measurement current |
0.5 mA or 1 mA |
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Self heating error in water at 0 °C [32 °F] |
2 ... 5 mK |
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Sheath material |
Stainless steel |
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Dimensions |
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Probe diameter |
d = 3 mm [0.12 in] |
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Probe length |
l = 30 mm [1.18 in], fully immersible |
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Cable |
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Length |
3 m [9.84 ft] |
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Connection |
Bare wire, DIN plug or SMART connector |
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Specifications |
Model CTP5000-250 |
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Specific probe data 1) |
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Temperature range |
-50 … +250 °C [-58 ... +482 °F] |
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Resistance at 0 °C [32 °F] |
100 ? |
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Temperature coefficient |
0.00385 |
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R(Ga)/R(tpw) |
Ratio less than 1.11807 |
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Annual drift |
±10 ... ±20 mK |
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Typical stability |
±5 mK |
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Recommended measurement current |
0.5 mA or 1 mA |
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Self heating error in water at 0 °C [32 °F] |
typically 2 ... 5 mK at 1 mA |
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Sheath material |
Stainless steel |
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Dimensions |
|
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Probe diameter |
d = 6 mm [0.24 in] |
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Probe length |
l = 350 mm (immersion depth max. 300 mm, min. 100 mm) |
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Cable |
l = 13.78 in (immersion depth max. 11.81 in, min. 3.94 in) |
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Length |
2 m [6.56 ft] |
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Connection |
Bare wire, DIN plug or SMART connector |
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Model CTP5000-450 |
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Specific probe data 1) |
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Temperature range |
-80 … +450 °C [-112 ... +842 °F] |
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Resistance at 0 °C [32 °F] |
100 ? |
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Temperature coefficient |
0.00385 |
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R(Ga)/R(tpw) |
Ratio less than 1.11807 |
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Annual drift |
±20 ... ±30 mK |
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Typical stability |
±5 mK |
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Recommended measurement current |
0.5 mA or 1 mA |
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Self heating error in water at 0 °C [32 °F] |
typically 5 ... 10 mK at 1 mA |
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Sheath material |
Stainless steel |
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Dimensions |
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Probe diameter |
d = 6 mm [0.24 in] |
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Probe length |
l = 350 mm (immersion depth max. 300 mm, min. 100 mm) |
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Cable |
l = 13.78 in (immersion depth max. 11.81 in, min. 3.94 in) |
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Length |
2 m [6.56 ft] |
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Connection |
Bare wire, DIN plug or SMART connector |
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Specifications |
Model CTP5000-651 |
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Specific probe data 1) |
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Temperature range |
-189 … +650 °C [-308 ... +1,202 °F] |
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Resistance at 0 °C [32 °F] |
100 ? ±0.05 ? |
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Temperature coefficient |
0.003925 |
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R(Ga)/R(tpw) |
Ratio not less than 1.11807 |
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Annual drift |
±10 mK |
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Typical stability |
±5 mK |
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Recommended measurement current |
0.5 mA or 1 mA |
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Self heating error in water at 0 °C [32 °F] |
typically 13 mK at 1 mA or 3 mK at 0.5 mA |
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Sheath material |
Fused silica |
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Dimensions |
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Probe diameter |
d = 7.5 mm [0.30 in] |
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Probe length |
l = 450 mm (immersion depth max. 350 mm, min. 200 mm) |
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Cable |
l = 17.72 in (immersion depth max. 13.78 in, min. 7.87 in) |
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Length |
2 m [6.56 ft] |
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Connection |
Bare wire, DIN plug or SMART connector |
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Specifications |
Model CTP5000-652 |
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Specific probe data 1) |
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Temperature range |
-80 … +650 °C [-112 ... +1,202 °F] |
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Resistance at 0 °C [32 °F] |
100 ? |
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Temperature coefficient |
0.00385 |
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R(Ga)/R(tpw) |
Ratio less than 1.11807 |
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Annual drift |
±15 mK |
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Typical stability |
±5 mK |
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Recommended measurement current |
1 mA |
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Self heating error in water at 0 °C [32 °F] |
10 ... 15 mK at 1 mA |
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Sheath material |
Metal alloy |
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Dimensions |
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Probe diameter |
d = 6 mm [0.24 in] |
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Probe length |
l = 450 mm (immersion depth max. 400 mm, min. 300 mm) |
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Cable |
l = 17.72 in (immersion depth max. 15.75 in, min. 11.81 in) |
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Length |
2 m [6.56 ft] |
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Connection |
Bare wire, DIN plug or SMART connector |
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Model CTP5000-T25 |
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Specific probe data 1) |
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Temperature range |
-196 … +660 °C [-321 ... +1,220 °F] |
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Resistance at 0 °C [32 °F] |
25 ±0.5 ? |
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Calibration |
Suitable for calibration per ITS-90 up to a maximum temperature of 660.323 °C [1,220.581 °F] |
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(freezing point aluminium) |
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Temperature coefficient |
0.003926 |
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R(Ga)/R(tpw) |
Ratio not less than 1.11807 |
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R(Me)/R(tpw) |
Ratio not greater than 0.844235 |
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Reproducibility |
±1 mK |
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Basic accuracy |
±1 mK |
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Annual drift |
±5 mK |
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Typical stability |
±1 mK |
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Recommended measurement current |
1 mA |
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Self heating error in water at 0 °C [32 °F] |
±2 ... ±3 mK with 1mA in un-stirred water |
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Gas filling |
Dry air at 1/3 atmosphere |
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Sheath material |
Fused quartz |
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Dimensions |
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Sheath |
d = 6.5 ... 7.5 mm [0.26 ... 0.30 in) |
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l = 480 mm (immersion depth max. 400 mm, min. 300 mm) |
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l = 18.90 in (immersion depth max. 15.75 in, min. 11.81 in) |
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Head |
d = 23 mm [0.91 in] |
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l = 90 mm [3.54 in] |
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Overall length |
560 mm [22.05 in] |
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Cable |
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Length |
4 m [13.12 ft] PTFE insulated cable |
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Connection |
gold-plated copper spade lugs |
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Case |
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Dimensions |
680 x 170 x 70 mm [26.77 x 6.69 x 2.76 in] |
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Weight |
2.4 kg [5.29 lbs.] (including thermometer) |
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