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www.calibration-online.com
Solutions pour la Calibration
Avionique, Pression, Température
Applications
Calibrations of thermometers
Temperature measurements within the scope of quality
assurance
Measurements in the service and maintenance sector
Long-term monitoring and online documentation
Special Features
High accuracy of 0.03 °C with Pt 100
One- and two- channel version available
Connection of various types of probes possible
Optionally with Ex-approval
Description
The universal hand-held thermometer model CTH 6500,
which has been designed for demanding mobile tempera-
ture measurements, features outstanding precision and
flexibility and is extremely easy to use.
Besides Pt 100 resistance thermometers it also processes
the signals of typical thermocouples. Thus it is possible to
measure temperatures ranging from -200 °C to 1760 °C.
Due to its high accuracy of 0.03 °C in the range of -100 °C to
150 °C this thermometer can be used as a reference
measuring instrument in the biotechnological, pharmaceuti-
cal and food industries and is therefore ideally suited for all
maintenance and service tasks.
Low-drift measuring amplifiers ensure that errors of meas-
urement are minimised, and convenient, user-friendly
adjustment functions considerably simplify adjustments and
calibrations:
Calibration by code for a fast adaptation of standard
probes via characteristic hex numbers
10/05/2010
Testing and
Calibration Technology
Hand-Held Thermometer
Model CTH 6500
Model CTH 6500-Ex
Hand-Held Thermometer CTH 6500
WIKA Data Sheet CT 55
Physical calibration of probe and display at one, two or
three test temperatures
This way it is possible to reduce measuring errors to a
minimum and to ensure a high display accuracy.
Further characteristic features:
Easy to use
Large display with double temperature indication and bar
graph
Min/Max value for the monitoring of the temperature
limits
Mean value function for statistical evaluations
"Fast mode" enabling faster measurements within 4/s
Optional channel can be turned off to give a clearer view
of the displayed data
Recording and display of temperature cycles with the
help of the SmartGraph software
Excellent price/performance ratio

Characteristic features of the Hand-Held Thermometers
CTH 6500
Operating functions
In the setup menu a menu point can be selected and
changed using the up and down (1) keys. Enter (3) and
ESC (2) can be used for confirmation and termination.
Large LCD display
Membrane
keypad
1. Connection port
for 1 st probe
RS 232 connection port
for PC
2. Connection port
for 2 nd probe
10/05/2010
Moveable clip for stand-up
and hanging position of the
instrument
Probe retainer
The intuitive menu is divided into two levels:
Main menu for the selection of the basic functions and
parameter menu for the setting of the parameters.
Main menu of the CTH 6500
Typical temperature probes
Penetration probe
CTP 9895
Immersion probe
CTP 9830
Parameter menu of the CTH 6500
Surface probe
CTP 9865

Specifications CTH 6500 CTH 6500-Ex EEX ib II B T4
Probe types
Inputs
Measuring ranges
Pt 100
Thermocouples
Humidity
Flow
Measurement uncertainties 1)
Pt 100
TC K, J, L, N and T
TC R and S
Humidity
Flow
Resolution
Display Interface
2) Power supply
Operating time
Ambient temperature
Dimensions
Weight
10/05/2010
Pt 100, thermocouples
Humidity, flow
1 or 2
-200 °C to 850 °C
-200 °C to 1760 °C
0 % to 100 %
0 to 40 m/s
0.03 °C from -100 °C to 150 °C
0.05 °C from -200 °C to 200 °C
0.1 % of reading above 200 °C
0.2 °C from 0 °C to 200 °C
0.5 °C from 200 °C to 1000 °C
1 °C above 1000 °C
1 °C + 0.1 % of reading
1.5 % relative humidity
0.5 % FS
0.01 °C up to 200 °C, then 0.1 °C
Two-line LCD display
RS 232
9 V battery or rechargeable battery
approx. 20 h with battery
0 °C to 40 °C
200 mm x 85 mm x 40 mm
300 g
1) The measurement uncertainty is stated for the whole measuring chain after adjustment and calibration.
2) The Ex instrument also has an RS 232 interface, which, however, must not be used in potentially explosive atmospheres.
Pt 100
1 or 2
-200 °C to 850 °C
-
-
-
0.03 °C from -100 °C to 150 °C
0.05 °C from -200 °C to 200 °C
-
-
-
-
-
-
-
0.01 °C up to 200 °C then 0.1°C
Two-line LCD display
(RS 232)
9 V battery or rechargeable battery
approx. 20 h with battery
0 °C to 40 °C
200 mm x 85 mm x 40 mm
Accessories/Options CTH 6500 CTH 6500-Ex EEX ib II B T4
Second input
Pt 100 immersion probe CTP 9825
-200 °C to 500 °C, 3 x 300 mm
Pt 100 immersion probe CTP 9830 4)
-200 °C to 500 °C, 3 x 300 mm
Pt 100 penetration probe CTP 9895
-200 °C to 500 °C, 4 x 300 mm
Pt 100 surface probe CTP 9865
-30 °C to 300 °C, 6 x 150 mm
TC K immersion probe CTP 9125
-200 °C to 1100 °C, 3 x 500 mm
Combined temperature/humidity probe CTP 9025
-30 °C to 80 °C / 0 % rel. humidity to 100 % rel. humidity,
20 x 120 mm
Set of cases with accessories 3)
DKD calibration certificate, instrument + 1 probe
5 temp., u = 0.05 °C up to 200 °C, then 0.1 % of reading
DKD calibration certificate, instrument + 2 probes
5 temp., u = 0.05 °C up to 200 °C, then 0.1 % of reading
DKD calibration certificate acc. to customer wishes
Option A
Option B
Option C
Option D
Option E
Option F
Option G
Option H
Option I
Option J on
request
300 g
Option A
Option B
Option C
Option D
Option E
(not possible with the Ex version)
(not possible with the Ex version)
Option H
Option I
Option J
on request
3) The set of cases includes a rugged transport case, 9 V battery and rechargeable battery, battery charger, power supply unit, PC adapter cable and SmartGraph software.
4) High-precision version with increased long-term stability due to ceramic wire wound RTD.

Options and Accessories
Immersion probes
Penetration probes
Surface probes
Customer-specified probes on request
ATEX approval EEX iB II B T4 (optional)
Power supply unit
9 V rechargeable battery and battery charger
9 V battery
Rugged transport case
SmartGraph software
PC adapter cable
Other fields of application
This instrument has been primarily designed for tempera-
ture measurement, however, fitted with corresponding
probes, it may also be used for:
humidity measurement using a combined temperature/
humidity probe and for
flow measurement from 0.1 m/s to 40 m/s using a vane
sensor.
The calibration and adjustment possibilities described
above also apply to these measurement parameters. In
addition a printer can be directly connected to the
instrument.
10/05/2010
SmartGraph software
This visualisation and administration software has the
following features:
Graphical and tabulated representation of the measured
values
Graphical representation scalable online, zoom/unzoom
function
Graphical/tabulated representation of the measured
values in several windows
Data storage on the PC and printing
Administration of probes and their characteristics in a
database
Transfer rate between probe and instrument
Export to other Windows applications
Windows online help
Products and Services within our Testing and Calibration Technology Program
DKD calibration services for pressure
Repair of calibration units of all makes
Portable pressure measuring devices for testing and
calibration tasks
Precision pressure measuring units and pressure
controllers
Primary standards for pressure
Testing technology system solutions
Specifications and dimensions given in this leaflet represent the state of engineering at the time of printing.
Modifications may take place and materials specified may be replaced by others without prior notice.
DKD calibration services for temperature
Temperature dry well calibrators
Calibration baths and furnaces
Temperature measuring instruments for testing and
calibration tasks
Precision thermometers
Primary standards for temperature
Consulting and training
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