WIKA CTP5000 Specifications
Reference thermometer
Model CTP5000
Applications
■
Reference thermometer for measuring very
accurate temperature in a range of -196 ... +660 °C
[-321 ... +1,220 °F]
■
Reference thermometer and a precision instrument for
testing, adjusting and calibrating temperature measuring
instruments in factories and calibration laboratories
■
Comparative calibration in dry well calibrators, tube
furnaces and liquid baths
Calibration technology
WIKA data sheet CT 61.20
Special features
■
Temperature range: -196 ... +660 °C [-321 ... +1,220 °F]
■
High stability
■
Low drift, long service life
■
Bare wires, DIN connector or SMART plug
Description
The CTP5000 provides a full range platinum resistance
thermometers (PRTs) for use in every application from
standards calibration to site temperature measurement. If the
‘o the shelf’ range will not suit the needs the thermometers
can be supplied custom manufactured to almost any
specication.
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.
Reference thermometer model CTP5000
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.
∙ 03/2018
Data sheets showing similar products and accessories:
Standard platinum resistance thermometer (SPRT); model CTP5000-T25; see data sheet CT 61.25
DC resistance thermometry bridge; model CTR6000; see data sheet CT 60.30
AC resistance thermometry bridge; model CTR6500; see data sheet CT 60.40
Primary-standard resistance thermometry bridge; model CTR9000; see data sheet CT 60.80
Page 1 of 6WIKA data sheet CT 61.20
Specications Model CTP5000-170
Specic probe data
Temperature range -196 … +170 °C [-321 ... +338 °F]
Resistance at 0 °C [32 °F] 100 Ω
Temperature coecient 0.00385
R(Ga)/R(tpw) Ratio less than 1.11807
Annual drift ±10 mK
Recommended measurement current 1 mA
Self heating error in water at 0 °C [32 °F] 2 ... 5 mK
Sheath material Metal alloy
Dimensions
Probe diameter d = 6 mm [0.24 in]
Probe length l = 350 mm (immersion depth max. 300 mm, min. 100 mm)
Cable
Length 2 m [6.56 ft]
Connection Bare wire, DIN plug or SMART connector
1)
l = 13.78 in (immersion depth max. 11.81 in, min. 3.94 in)
Specications Model CTP5000-200
Specic probe data
Temperature range -50 … +200 °C [-58 ... +392 °F]
Resistance at 0 °C [32 °F] 100 Ω
Temperature coecient 0.00385
R(Ga)/R(tpw) Ratio less than 1.11807
Annual drift ±10 ... ±20 mK
Recommended measurement current 0.5 mA or 1 mA
Self heating error in water at 0 °C [32 °F] 2 ... 5 mK
Sheath material Stainless steel
Dimensions
Probe diameter d = 3 mm [0.12 in]
Probe length l = 30 mm [1.18 in], fully immersible
Cable
Length 3 m [9.84 ft]
Connection Bare wire, DIN plug or SMART connector
1)
Specications Model CTP5000-250
Specic probe data
Temperature range -50 … +250 °C [-58 ... +482 °F]
Resistance at 0 °C [32 °F] 100 Ω
Temperature coecient 0.00385
R(Ga)/R(tpw) Ratio less than 1.11807
Annual drift ±10 ... ±20 mK
Typical stability ±5 mK
Recommended measurement current 0.5 mA or 1 mA
Self heating error in water at 0 °C [32 °F] typically 2 ... 5 mK at 1 mA
Sheath material Stainless steel
Dimensions
Probe diameter d = 6 mm [0.24 in]
Probe length l = 350 mm (immersion depth max. 300 mm, min. 100 mm)
Cable
Length 2 m [6.56 ft]
Connection Bare wire, DIN plug or SMART connector
1) Specications may deviate; they depend on the use of the thermometer. The specied values are typical values for use in laboratories.
Page 2 of 6 WIKA data sheet CT 61.20 ∙ 03/2018
1)
l = 13.78 in (immersion depth max. 11.81 in, min. 3.94 in)
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