High-precision process calibrator Model CED7000

Calibration technology
High-precision process calibrator
Model CED7000
WIKA data sheet CT 85.51 
for further approvals
see page 6
Applications
■■ Research and development laboratories
■■ Calibration service companies and service industry
■■ Industry (laboratory, workshop and production)
■■ Quality assurance
Special features
■■ Excellent accuracy of down to 0.0025 % of reading
■■ Measuring and simulation of thermocouples (13),
High-precision process calibrator, model CED7000
resistance thermometers (9), resistance, voltage, current
and pressure
■■ Entry of customer-specific resistance thermometer
coefficients
■■ Beryllium copper connections reduce thermoelectric
voltages
■■ Insulated mA/V measuring channel for complete
transmitter calibration (measuring and simulation at the
same time)
Description
General information
The model CED7000 process calibrator combines the
capabilities of a signal, temperature and pressure calibrator
in a single instrument. With the efficiency of a laboratory
instrument, an additional isolated measuring channel and
optional external pressure modules, the CED7000 is perfect
for the widest range of calibration tasks.
Extensive application possibilities
The CED7000 has a wide range of application options. It can
be used for calibration in industry (laboratory, production,
workshops) and in laboratories and institutes.
Efficiency
The signal calibration capability of the CED7000 includes
current, voltage and resistance. In the thermocouple and
resistance thermometer mode, the unit offers a selection
between 13 different thermocouples and 9 different
resistance thermometers.
WIKA data sheet CT 85.51 ∙ 12/2017
For pressure measurement, an external pressure sensor
is required. The best results are achieved by using the
CPT6100 series. The accuracy and the resolution are
dependent on the respective pressure sensor.
The fully isolated measuring channel enables the calibration
of transmitters. The CED7000 thus combines the two
functions, measuring and simulation, in one instrument.
The CED7000 is very easy to use. It supports direct entry
using keyboard or cursor keys.
The CED7000 can be controlled via PC using RS-232,
IEEE-488 or optionally a USB connection.
Certified accuracy
Every process calibrator CED7000 is provided with a factory
calibration certificate which certificates the accuracy of
the instrument. On request, we can provide a DKD/DAkkS
calibration certificate for this instrument.
Page 1 of 11
Specifications
Base instrument
Input and output
Resistance thermometer (RTD)
Pt100 (385, 3926, 3916), Pt200, Pt500, Pt1000, Ni120, Cu10, YSI 400
Thermocouples
Types B, C, E, J, K, L, N, R, S, T, U, XK, BP
Voltage signal
DC 0 ... 100 V
Current signal
DC 0 ... 100 mA (output)
DC 0 ... 50 mA (input)
Resistance
0 ... 4,000 Ω
Transmitter supply
Voltage supply
DC 24 V ±10 V
Loop current
max. DC 24 mA
Resistance
Special features
HART® resistor: 250 Ω ±3 Ω (activatable)
Settling time
less than 5 seconds
Warm-up time
30 minutes
Voltage supply
Power supply
AC 100 ... 240 V, 47 ... 63 Hz
Power consumption
max. 15 VA
Permissible ambient conditions
Operating temperature
0 ... 50 °C
Storage temperature
-20 ... +70 °C
Calibration temperature (Tcal)
18 ... 28 °C
Temperature coefficient
Relative humidity
10 % of the accuracy specification per °C outside the calibration temperature
Operation
< 80 % r. h. up to 30 °C
< 70 % r. h. up to 40 °C
< 40 % r. h. up to 50 °C
Storage
0 ... 95 % r. h. (non-condensing)
Communication
Interface
Case
RS-232, IEEE-488 (GPIB)
Dimensions
48.3 x 17.7 x 27.9 cm (19.0 x 7.0 x 11.0 inch)
Weight
4 kg (8.82 lb)
Page 2 of 11
WIKA data sheet CT 85.51 ∙ 12/2017
Input and output signals Model CED7000
Range
Accuracy in ± (% of reading +µV)
90 days
Voltage output 1)
Stability
24 hours, ±1 °C
± (% of reading +µV)
Max. load
0 ... 100.000 mV
0.0025
3
0.003
3
1 µV
0.0005
2
10 mA
0 ... 1.00000 V
0.0025
10
0.003
10
10 µV
0.0004
10
10 mA
0 ... 10.0000 V
0.0025
100
0.003
100
100 µV
0.0004
100
10 mA
0 ... 100.000 V
0.0025
1 mV
0.003
1 mV
1 mV
0.0005
1 mV
1 mA
0.0025
3 µV
0.003
3 µV
1 µV
0.0005
2
10 Ω
TC output and input
-10 ... +75.000 mV
Isolated voltage input
0 ... 10.0000 V
0.005
0.2
100 µV
0 ... 100.000 V
0.005
2.0
1 mV
Current output 2)
0 ... 100.000 mA
Isolated current input
3)
0 ... 50.0000 mA
Resistance output
0.004
1
0.01
0.005
1
1
1 µA
Max. output
voltage
Max. inductive
load
12 V
100 mH
0.1 µA
Nominal current
5 ... 400.000 Ω
0.012
0.015
0.001 Ω
1 ... 3 mA
5 ... 4.00000 kΩ
0.25
0.3
0.01 Ω
100 µA ... 1 mA
Resistance input
Stimulus current
0 ... 400.000 Ω
0.002 + 0.0035
0.002 + 0.004
0.001 Ω
1 mA
0 ... 4.00000 kΩ
0.002 + 0.035
0.002 + 0.04
0.01 Ω
0.1 mA
Pressure measurement
1)
2)
3)
1 year
Resolution
Ranges
Dependent on pressure module
Accuracy and resolution
Dependent on pressure module
Units
psi, bar, mbar, inH2O (4 °C, 20 °C and 60 °F), cmH2O (4 °C and 20 °C), mmH2O (4 °C and 20 °C), kPa,
MPa, inHg, mmHg, kg/cm²
Output impedance: < 1 Ω; only positive output signal
Only positive output signal
Voltage supply DC 24 V ±10 V
Loop current max. DC 24 mA
Resistance HART® resistor: 250 Ω ±3 Ω (activatable)
WIKA data sheet CT 85.51 ∙ 12/2017
Page 3 of 11
Output and input
Thermocouples
Type B
Type C
Type E
Type J
Type K
Type L
Type N
Type R
Type S
Type T
Type U
Type XK
Type BP
4)
5)
Measuring range
600 ... 800 °C
800 ... 1,550 °C
1,550 ... 1,820 °C
0 ... 1,000 °C
1,000 ... 1,800 °C
1,000 ... 2,000 °C
1,800 ... 2,316 °C
-250 ... -200 °C
-200 ... -100 °C
-100 ... 0 °C
0 ... 600 °C
600 ... 1,000 °C
-210 ... -100 °C
-100 ... 800 °C
800 ... 1,200 °C
-250 ... -200 °C
-200 ... -100 °C
-100 ... +500 °C
500 ... 800 °C
800 ... 1,372 °C
-200 ... -100 °C
-100 ... +900 °C
-250 ... -200 °C
-200 ... -100 °C
-100 ... 0 °C
0 ... 100 °C
100 ... 800 °C
800 ... 1,300 °C
-50 ... -25 °C
-25 ... 0 °C
0 ... 100 °C
100 ... 400 °C
400 ... 600 °C
600 ... 1,000 °C
1,000 ... 1,600 °C
1,600 ... 1,767 °C
-50 ... -25 °C
-25 ... 0 °C
0 ... 100 °C
100 ... 400 °C
400 ... 600 °C
600 ... 1,000 °C
1,000 ... 1,600 °C
1,600 ... 1,767 °C
-250 ... -200 °C
-200 ... -100 °C
-100 ... 0 °C
0 ... 200 °C
200 ... 400 °C
-200 ... 0 °C
0 ... 200 °C
200 ... 600 °C
-200 ... -100 °C
-100 ... 0 °C
0 ... 600 °C
600 ... 800 °C
0 ... 200 °C
200 ... 600 °C
600 ... 800 °C
800 ... 1,600 °C
1,600 ... 2,000 °C
2,000 ... 2,500 °C
Accuracy in ±°C 4) 5)
Tcal ±5 °C
90 days
1 year
0.15
0.22
0.24
0.32
0.16
0.23
0.26
0.35
0.35
0.28
0.21
0.24
0.10
0.07
0.06
0.08
0.13
0.07
0.08
0.45
0.15
0.08
0.09
0.11
0.08
0.07
0.72
0.22
0.11
0.09
0.08
0.10
0.54
0.44
0.38
0.27
0.21
0.19
0.18
0.21
0.51
0.43
0.37
0.28
0.22
0.21
0.20
0.24
0.34
0.14
0.09
0.07
0.06
0.15
0.08
0.07
0.10
0.07
0.06
0.07
0.17
0.14
0.15
0.22
0.26
0.38
0.35
0.28
0.22
0.25
0.12
0.09
0.08
0.10
0.14
0.09
0.10
0.46
0.16
0.10
0.10
0.13
0.10
0.09
0.73
0.23
0.12
0.11
0.10
0.12
0.55
0.45
0.39
0.28
0.22
0.21
0.19
0.23
0.51
0.43
0.38
0.29
0.23
0.22
0.22
0.26
0.35
0.16
0.11
0.09
0.09
0.16
0.10
0.10
0.11
0.09
0.08
0.09
0.18
0.16
0.17
0.23
0.28
0.40
The accuracy does not include the error of the thermocouple.
The accuracy includes the error of cold junction compensation. It is not specified separately.
Page 4 of 11
WIKA data sheet CT 85.51 ∙ 12/2017
Input
Resistance thermometer and thermistor
Measuring range
Accuracy in ±°C 6) 7)
Tcal ±5 °C
90 days
1 year
Pt385, 100 Ω
-200 ... -80 °C
-80 ... +100 °C
100 ... 300 °C
300 ... 400 °C
400 ... 630 °C
630 ... 800 °C
0.012
0.018
0.022
0.025
0.031
0.037
0.013
0.020
0.024
0.026
0.033
0.038
Pt3926, 100 Ω
-200 ... -80 °C
-80 ... 0 °C
0 ... 100 °C
100 ... 300 °C
300 ... 400 °C
400 ... 630 °C
0.012
0.014
0.016
0.026
0.021
0.024
0.013
0.015
0.017
0.022
0.026
0.032
Pt3916, 100 Ω
-200 ... -190 °C
-190 ... -80 °C
-80 ... 0 °C
0 ... 100 °C
100 ... 300 °C
300 ... 400 °C
400 ... 600 °C
600 ... 630 °C
0.009
0.012
0.014
0.016
0.021
0.024
0.030
0.031
0.010
0.013
0.015
0.017
0.022
0.026
0.031
0.033
Pt385, 200 Ω
-200 ... -80 °C
-80 ... 0 °C
0 ... 100 °C
100 ... 260 °C
260 ... 300 °C
300 ... 400 °C
400 ... 630 °C
0.047
0.050
0.053
0.054
0.062
0.064
0.079
0.053
0.056
0.060
0.060
0.069
0.071
0.088
Pt385, 500 Ω
-200 ... 0 °C
0 ... 100 °C
100 ... 300 °C
300 ... 400 °C
400 ... 630 °C
0.023
0.026
0.031
0.035
0.041
0.025
0.028
0.034
0.038
0.045
Pt385, 1,000 Ω
-200 ... 0 °C
0 ... 100 °C
100 ... 300 °C
300 ... 400 °C
400 ... 630 °C
0.014
0.017
0.022
0.024
0.031
0.015
0.018
0.024
0.026
0.033
Ni120, 120 Ω
YSI 400
-80 ... +260 °C
0.008
0.009
Cu427, 10 Ω
-100 ... +260 °C
0.097
0.110
15 ... 50 °C
0.005
0.007
SPRT
-200 ... +660 °C
0.05
0.06
6)
7)
4-wire input
The accuracy does not include the error of the probe.
WIKA data sheet CT 85.51 ∙ 12/2017
Page 5 of 11
Output
Measuring range
Resistance thermometer and thermistor
Pt385, 100 Ω
-200 ... +800 °C
Accuracy in ± °C 8)
Tcal ±5 °C
90 days
1 year
0.04
0.05
Pt3926, 100 Ω
-200 ... +630 °C
0.04
0.05
Pt3916, 100 Ω
-200 ... +630 °C
0.04
0.05
Pt385, 200 Ω
-200 ... +400 °C
400 ... 630 °C
0.35
0.42
0.40
0.50
Pt385, 500 Ω
-200 ... +630 °C
0.15
0.17
Pt385, 1,000 Ω
-200 ... +630 °C
0.07
0.09
Ni120, 120 Ω
-80 ... +260 °C
0.02
0.02
Cu427, 10 Ω
-100 ... +260 °C
0.30
0.38
YSI 400
15 ... 50 °C
0.005
0.007
8)
2-wire output
Approvals
Logo
Description
Country
European Union
EU declaration of conformity
■■ EMC directive
EN 61326-1 emission (group 1, class B) and immunity (controlled electromagnetic environment)
■■ Low voltage directive
EN 61010-1 and EN 61010-2-030 safety requirements for electrical equipment for
measurement, control and laboratory use
■■ RoHS directive
EAC
Eurasian Economic
Community
GOST
Metrology, measurement technology
Russia
BelGIM
Metrology, measurement technology
Belarus
■■ EMC directive
■■ Low voltage directive
Certificates
Certificate
Calibration
Standard: 3.1 calibration certificate per EN 10204
Option: DKD/DAkkS calibration certificate
Recommended recalibration interval
1 year (dependent on conditions of use)
Approvals and certificates, see website
Page 6 of 11
WIKA data sheet CT 85.51 ∙ 12/2017
Dimensions in mm
Front view
Plan view
Side view
Rear view
WIKA data sheet CT 85.51 ∙ 12/2017
Page 7 of 11
Handling
The CED7000 process calibrator is very simple and
user-friendly in operation.
The values can be entered both directly and via the cursor
keys. When entering the values directly, the actual value is
entered using the numerical keys, the cursor keys are used to
change individual digits.
In the voltage mode, the CED7000 automatically sets the
appropriate range for the value entered in order to always
achieve the highest accuracy.
Voltage mode
The process calibrator offers four precision voltage
simulation ranges (100 mV, 1 V, 10 V, 100 V) with an accuracy
of 0.003 % of reading (30 ppm). These ranges are ideal
for the calibration of a wide range of different DC voltage
instruments.
All voltage simulations are set in less than 20 ms to their
full specification. It makes the CED7000 ideal for automatic
calibration systems.
An automatic operate/standby function guarantees that a
voltage of more than DC 30 V must be acknowledged by the
operator before the voltage is made available at the terminals.
This provides the optimal protection for the instruments to be
calibrated against overvoltage.
Front view
3
2
1
(1) Isolated measuring channel
(2) Primary input/output display and controls
(3) Primary input/output connections
Primary input and output connections
Current mode
The CED7000 has a very precise current simulation range
(100 mA) with an accuracy of 0.005 % of reading (50 ppm).
This provides ideal conditions for the calibration of process
instruments, particularly 4 ... 20 mA instruments.
With a maximum output voltage of DC 12 V at 100 mA, a
wide range of different DC current measuring instruments
can be calibrated. As the voltage mode, this mode provides a
fast reaction time and an operate/standby function.
1
2
3
4
Thermocouple mode
The CED7000 can display and simulate 13 different
thermocouple types. Its thermocouple input and output are
cold-junction compensated using an extremely stable Pt1000
sensor.
Resistance thermometer mode
Nine different resistance thermometer types as well as
YSI 400 and resistances for non-standard curves can be
read and simulated. The coefficients A, B, C and R0 can be
entered directly. The instrument can save up to five customerspecific resistance thermometers. The performance of the
CED7000 can be compared with other resistance measuring
instruments, however, the display is always active with a
resolution of 0.001.
Page 8 of 11
6
(1)
(2)
(3)
(4)
(5)
(6)
5
Voltage output
Current output
Resistance thermometer and resistance output
Thermocouple input/output
Connection for external pressure sensor
Resistance thermometer and resistance input
WIKA data sheet CT 85.51 ∙ 12/2017
Pressure mode
With the CED7000, pressure can be displayed in many units
with an accuracy of down to 0.01 % of span. The isolated
measuring channel makes it possible to display pressure
simultaneously in different units. All precision pressure
sensors of the CPT6100 series can be connected.
Remote control
All operating functions can be activated and read via
RS-232, IEEE-488 or USB interfaces. For this, Windows®
HyperTerminal or a different ASCII code-based software
can be used. The use of customer-specific programmes is
also possible if they are written using programming software
similar to C++.
Set-point control
Up to nine set points can be defined for each output mode.
Set points can be very easily checked using three keys. Any
number of specified set points can be automatically called up
with complete control of the dwell time. This function allows
fast performing and repetition of the tests.
Perfect accuracy/stability
The stability and accuracy of the CED7000 is fully traceable
to DKD-/DAkkS standards. The accuracy is specified for
90 days and for a year interval. Manual zero calibration can
be carried out for the thermocouple input, resistance input
and pressure function in order to avoid offsets.
Interfaces on the rear side
1
2
7
(1)
(2)
(3)
(4)
(5)
(6)
(7)
6
5
4
3
Fuse compartment
Power switch
AC connection per standard IEC
Grounding (case)
Service connection
IEEE-488
RS-232 (USB with adapter)
Isolated measuring channel
Flexible output
Five-way screw and plug-in connections provide a wide
range of connection options. A multi-LEMO connector is
used for the connection of an external pressure sensor, a
miniature connector input is provided for thermocouples.
1
2
Isolated measuring channel
The CED7000 features a completely isolated measuring
channel which allows the user to calibrate transmitters. This
channel has a DC 24 V voltage supply for supplying 2-wire
transmitters and an activatable HART® resistor.
3
(1) Display
(2) Function keys
(3) Input for current and voltage
WIKA data sheet CT 85.51 ∙ 12/2017
Page 9 of 11
Keyboard
Primary control keys
OUTPUT

INPUT

ZERO

Zeros the input for pressure, TCs and
RTDs
SETUP

Settings
CJC

Selection of internal or external cold
junction compensation
°C / °F

Selection of Celsius or Fahrenheit
SET

Entering set points
RECALL

Recalling set points
AUTOSET

Automatic stepping of selected set
points
RNG LOCK
+/-
Selection of auto range or range lock
LOCAL

Finishing remote control

Selection of the exponent during the
entry of customer-specific resistance
thermometer coefficients
EXP
Switching between input and output
mode
Switching between voltage and current
Switching between TC and RTD
Selection of the input mode for pressure
Switching between individual TCs or RTDs
Switching from standby to operating mode
Enter key
Clears the input in the display
Selection of secondary functions via the numeric keys
Control keys for the isolated measuring channel
Switching between voltage and current
Activation of the DC 24 V supply voltage
Connection of a 250 Ω HART® resistor
Selection of the input mode for pressure
Page 10 of 11
WIKA data sheet CT 85.51 ∙ 12/2017
Scope of delivery
■■ High-precision process calibrator, model CED7000
■■ Operating instructions
■■ 3.1 calibration certificate per DIN EN 10204
■■ Power cord
Option
Certificates
■■ DKD/DAkkS certified accuracy
Accessories
Test cables
■■ Thermocouple wire kit J, K, T, E with plugs
■■ Thermocouple wire kit R/S, N, B with plugs
■■ Beryllium copper cable with low thermoelectric voltage (red)
■■ Beryllium copper cable with low thermoelectric voltage
(black)
Interface
■■ Null-modem cable
■■ USB serial adapter
Ordering information
Model / Mains voltage / Calibration / Additional ordering information
12/2017 EN
© 04/2008 WIKA Alexander Wiegand SE & Co. KG, all rights reserved.
The specifications given in this document represent the state of engineering at the time of publishing.
We reserve the right to make modifications to the specifications and materials.
WIKA data sheet CT 85.51 ∙ 12/2017
Page 11 of 11
WIKA Alexander Wiegand SE & Co. KG
Alexander-Wiegand-Straße 30
63911 Klingenberg/Germany
Tel.
+49 9372 132-0
Fax
+49 9372 132-406
info@wika.de
www.wika.de
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