Calibration
WIKA data sheet CT 55.10
Page 1 of 11
WIKA data sheet CT 55.10
∙ 02/2020
for further approvals
see page 4
Data sheets showing similar products:
Hand-held thermometer; models CTH6500, CTH65I0; see data sheet CT 51.05
Hand-held thermometer, precision version
Model CTH6500
Model CTH65I0, explosion-protected version
Hand-held thermometer model CTH6500
Description
The all-purpose model CTH6500 hand-held thermometer, for
superior mobile temperature measurement, is notable for its
precision, exibility and ease of handling.
In addition to Pt100 resistance thermometers, it can
also process signals from typical thermocouples. Thus
temperatures from -200 ... +1,500 °C [-328 ... +2,732 °F]
can be measured. The explosion-protected version is only
available for Pt100 resistance thermometers.
Through its high accuracy of 0.03 K in ranges from
-100 ... +150 °C [-148 ... +302 °F], this instrument can
also be used as a reference instrument in biotechnology,
pharmaceutical and food industries. The CTH6500 is thus
ideal for all service and maintenance tasks.
Low-drift measuring ampliers ensure small measurement
errors, while easy-to-use adjustment features considerably
simplify adjustments and calibrations:
■
Calibration by code for fast setting of standard probes via
key data
■
Physical calibration of probe and display at one, two or
three dierent temperatures
In this way it is possible to reduce measuring errors to a
minimum and ensure a high indication accuracy.
Additional elds of application
The instrument has been primarily designed for temperature
measurement, though it can, with the appropriate probes,
also be used for:
■
Humidity measurement with a combined temperature-
humidity probe
■
Flow measurement from 0.1 ... 40 m/s with a vane sensor
The calibration and adjustment possibilities above are also
applicable to these measurands.
Applications
■
Calibration of thermometers
■
Temperature measurement for the purposes of quality
assurance
■
Measurements in service and maintenance applications
■
Long-term monitoring and online documentation
Special features
■
High accuracy of 0.03 K with Pt100
■
One- and two-channel versions
■
Connection possibility for various probe types
■
Intrinsically safe version, Ex ib IIB T4 Gb
WIKA data sheet CT 55.10 ∙ 02/2020 Page 2 of 11
Specications
Hand-held thermometer Model CTH6500 Model CTH65I0
Probe types Pt100, thermocouples, humidity, ow Pt100
Measuring inputs 1 or 2 1 or 2
Measuring ranges
Pt100 -200 ... +600 °C [-328 ... +1,112 °F] -200 ... +600 °C [-328 ... +1,112 °F]
Thermocouples -200 ... +1,500 °C [-328 ... + 2,732 °F] -
Humidity 0 ... 100 % r. h.
Flow 0 ... 40 m/s
Accuracies
Resistance thermometer
type Pt100
0.03 K of -50 ... +199.99 °C [-58 ... +394.98 °F]
0.05 K of -200 ... -50.01 °C [-328 ... -58.02 °F]
otherwise 0.05 % of reading
0.03 K of -50 ... +199.99 °C [-58 ... +394.98 °F]
0.05 K of -200 ... -50.01 °C [-328 ... -58.02 °F]
otherwise 0.05 % of reading
Thermocouple types K, J, L, N
and T
0.2 K of 0 ... 200 °C [32 ... 392 °F]
0.5 K of 200 ... 1,000 °C [392 ... 1,832 °F]
1 K above 1,000 °C [1,832 °F]
-
Thermocouple types R and S 1 K + 0.1 % of reading -
Humidity 1.5 % r. h.
Flow 0.5 % of end value
Digital indicator
Indication
Display Large 4 1/2-digit LC display with backlighting, for the display of two temperature values and
additional information
Resolution 0.01 K up to 200 °C [392 °F], then 0.1 K
Indication range -19999 ... 19999
Functions
Measuring rate Measuring rate (can be set via menu)
■
1/s (“slow” - slow measurement)
■
4/s (“fast” - fast measurement)
Real-time clock integrated clock with date
Min./Max. memory Minimum or maximum measured value (can be accessed via function key)
Hold Holding the last measured value (can be accessed via function key)
Zero point adjustment Tare or zero point adjustment can be accessed via function key
Voltage supply
Supply voltage
■
9 V battery
■
9 V rechargeable battery or mains supply (not permissible for CTH65I0)
Battery life approx. 20 hours of operation with battery
Complete test and service cases
For the secure transportation and storage of the instrument
and accessories, a rugged service case is available as a
sensible addition. The service case can carry one model
CTH6500 digital indicator and several temperature probes.
Certied accuracy
For each temperature probe, the accuracy for the complete
measuring chain is certied by a factory calibration
certicate which accompanies the instrument. On request,
we can provide a DKD/DAkkS calibration certicate for this
instrument.