WIKA CEP6000 Operating Instructions Manual

Operating instructions
操作说明书
GB
CN
Hand-held multi-function calibrator, model CEP6000
CEP6000 型手持多功能校准仪
Hand-held multi-function calibrator, model CEP6000
GB
CN
2
MM/YYYY country code based on 10/2014 GB/CN
WIKA operating instructions, model CEP6000
Operating instructions model CEP6000 Page 3 - 50
CEP6000 型操作说明书 页码
51 - 100
© 2014 WIKA Alexander Wiegand SE & Co. KG All rights reserved. 保留一切权利。/ Alle Rechte vorbehalten. WIKA® is a registered trademark in various countries. WIKA® 是在各个国家/地区的注册商标。
Prior to starting any work, read the operating instructions! Keep for later use!
在开始任何工作之前,请阅读本操作说明书! 请妥善保存,以备将来使用!
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WIKA operating instructions, model CEP6000
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Contents
Contents
1. General information 5
2. Short overview 6
2.1 Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
2.2 Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
2.3 Scope of delivery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
3. Safety 8
3.1 Explanation of symbols. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
3.2 Intended use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
3.3 Improper use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
3.4 Responsibility of the operator . . . . . . . . . . . . . . . . . . . . . . . . . . 9
3.5 Personnel qualification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
3.6 Labelling, safety marks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
4. Design and function 11
4.1 Front foil . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
4.1.1 Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
4.1.2 Key function. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13
4.2 Batteries . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14
4.2.1 Selecting the batteries or rechargeable batteries . . . . . . . . . . . . 14
4.2.2 Using the power supply unit . . . . . . . . . . . . . . . . . . . . . . . .14
5. Transport, packaging and storage 15
5.1 Transport . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
5.2 Packaging and storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15
6. Commissioning, operation 16
6.1 Main display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17
6.2 Menu bar . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
6.2.1 Menu function “Measuring” . . . . . . . . . . . . . . . . . . . . . . . . 18
6.2.2 Menu function “Output” . . . . . . . . . . . . . . . . . . . . . . . . . . 19
6.2.3 Menu function “Pulse output” . . . . . . . . . . . . . . . . . . . . . . . 19
6.2.4 Menu function “UPPER”, “LOWER” and “MORE” . . . . . . . . . . . . 19
6.2.5 Menu function “Automatic output function” . . . . . . . . . . . . . . . . 20
6.2.6 Menu function “Contrast” . . . . . . . . . . . . . . . . . . . . . . . . . 20
6.2.7 Menu function “Automatic switch-off” . . . . . . . . . . . . . . . . . . .20
6.2.8 Menu function “Frequency or pulse output” . . . . . . . . . . . . . . . 21
6.2.9 Menu function “Probe-specific coefficients” . . . . . . . . . . . . . . . 21
6.2.10 Menu function “ZERO” . . . . . . . . . . . . . . . . . . . . . . . . . . .21
6.2.11 Menu function “Parameter selection” . . . . . . . . . . . . . . . . . . . 22
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Contents
Declarations of conformity can be found online at www.wika.com.
6.3 Cursor control/set point control . . . . . . . . . . . . . . . . . . . . . . . . . 22
6.4 Using the measuring modes (lower display) . . . . . . . . . . . . . . . . . . 22
6.4.1 Measuring voltage and frequency. . . . . . . . . . . . . . . . . . . . .22
6.4.2 Measuring current (mA) . . . . . . . . . . . . . . . . . . . . . . . . . . 23
6.4.3 Measuring temperature . . . . . . . . . . . . . . . . . . . . . . . . . . 23
6.4.4 Measuring pressure . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
6.5 Using the output modes (lower display). . . . . . . . . . . . . . . . . . . . .27
6.5.1 Setting the output parameters 0 % and 100 %. . . . . . . . . . . . . .27
6.5.2 Using the automatic output functions . . . . . . . . . . . . . . . . . . .28
6.5.3 Current output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
6.5.4 Simulating a transmitter . . . . . . . . . . . . . . . . . . . . . . . . . .30
6.5.5 Voltage output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
6.5.6 Frequency output. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .31
6.5.7 Pulse output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
6.5.8 Simulating thermocouples . . . . . . . . . . . . . . . . . . . . . . . . .31
6.5.9 Simulating resistance or resistance thermometers . . . . . . . . . . . 32
6.6 Using the isolated measuring modes (upper display) . . . . . . . . . . . . .34
6.6.1 Measuring voltage (V) or current (mA) . . . . . . . . . . . . . . . . . .34
6.6.2 Current measurement with DC 24 V voltage supply . . . . . . . . . . .34
6.7 Using the upper and lower displays for test and calibration . . . . . . . . . . 35
6.7.1 Calibrating a display instrument. . . . . . . . . . . . . . . . . . . . . .35
6.7.2 Calibrating an I/P instrument . . . . . . . . . . . . . . . . . . . . . . .36
6.7.3 Calibrating a transmitter . . . . . . . . . . . . . . . . . . . . . . . . . . 36
6.7.4 Calibrating a pressure transmitter. . . . . . . . . . . . . . . . . . . . .37
7. Faults 38
8. Maintenance, cleaning and recalibration 40
8.1 Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
8.2 Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .40
8.3 Recalibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
9. Dismounting, return and disposal 41
9.1 Dismounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .41
9.2 Return . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
9.3 Disposal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
10. Specifications 43
11. Accessories 49 Appendix: EC declaration of conformity 50
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WIKA operating instructions, model CEP6000
MM/YYYY country code based on 10/2014 GB/CN
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1. General information
1. General information
The model CEP6000 hand-held multi-function calibrator described in these operating instructions has been manufactured using state-of-the-art technology. All components are subject to stringent quality and environmental criteria during production. Our management systems are certified to ISO 9001 and ISO 14001.
These operating instructions contain important information on handling the instrument. Working safely requires that all safety instructions and work instructions are observed.
Observe the relevant local accident prevention regulations and general safety regulations for the instrument’s range of use.
The operating instructions are part of the product and must be kept in the immediate vicinity of the instrument and readily accessible to skilled personnel at any time. Pass the operating instructions onto the next operator or owner of the instrument.
Skilled personnel must have carefully read and understood the operating instructions prior to beginning any work.
The general terms and conditions contained in the sales documentation shall apply.
Subject to technical modifications.
Factory calibrations / DKD/DAkkS calibrations are carried out in accordance with international standards.
Further information:
- Internet address: www.wika.com.cn / www.wika.com
- Relevant data sheet: CT 83.01
- Application consultant:
Tel.: +49 9372 132-5049 Fax: +49 9372 132-8005049 CTServiceteam@wika.com
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WIKA operating instructions, model CEP6000
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1
2
3
Abbreviations, definitions
RTD Resistance thermometer
TC Thermocouple
2W 2-wire measurement
Two test cables are used for the voltage supply. The measurement signal also provides the supply current.
3W 3-wire measurement
Two test cables are used for the voltage supply. One test cable is used for the measurement signal.
4W 4-wire measurement
Two test cables are used for the voltage supply. Two test cables are used for the measurement signal.
CJC Cold junction compensation
2. Short overview
2.1 Overview
Display
Keypad
Connections
1
2
3
1. General information / 2. Short overview
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2.2 Description
The model CEP6000 hand-held multi-function calibrator is a battery-operated hand-held instrument which can measure or simulate electrical parameters. The model CEP6000 works with different thermocouples and resistance thermometers, among others. Very high accuracy and diverse special functions make the instrument to a user-friendly and highly flexible calibration instrument.
2.3 Scope of delivery
Hand-held multi-function calibrator model CEP6000
Operating instructions
Test cables, three sets (red/black)
3.1 calibration certificate per DIN EN 10204
Four AA batteries
Protective rubber boot
Quick Start Guide
Cross-check scope of delivery with delivery note.
2. Short overview
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3. Safety
3.1 Explanation of symbols
WARNING!
... indicates a potentially dangerous situation that can result in serious injury or death, if not avoided.
CAUTION!
... indicates a potentially dangerous situation that can result in light injuries or damage to equipment or the environment, if not avoided.
DANGER!
... identifies hazards caused by electrical power. Should the safety instruc­tions not be observed, there is a risk of serious or fatal injury.
Information
... points out useful tips, recommendations and information for efficient and trouble-free operation.
3.2 Intended use
The model CEP6000 hand-held multi-function calibrator is a battery-operated hand-held instrument which can measure and output/simulate current, voltage, resistance, RTD’s, TC’s, frequency and pulses.
In addition, external pressure sensors/pressure modules can be connected which enable pressure to measure with this calibrator. The WIKA model CPT6600 pressure modules and the Mensor model CPT6100/CPT6180 precision pressure sensors are compatible here.
This instrument is not permitted to be used in hazardous areas!
The instrument has been designed and built solely for the intended use described here, and may only be used accordingly.
The technical specifications contained in these operating instructions must be observed. Improper handling or operation of the instrument outside of its technical specifications
3. Safety
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requires the instrument to be taken out of service immediately and inspected by an authorised WIKA service engineer.
Handle electronic precision measuring instruments with the required care (protect from humidity, impacts, strong magnetic fields, static electricity and extreme temperatures, do not insert any objects into the instrument or its openings). Plugs and sockets must be protected from contamination.
The manufacturer shall not be liable for claims of any type based on operation contrary to the intended use.
3.3 Improper use
WARNING! Injuries through improper use
Improper use of the instrument can lead to hazardous situations and injuries.
Refrain from unauthorised modifications to the instrument.
Do not use the instrument within hazardous areas.
Only use accessories provided by WIKA.
Any use beyond or different to the intended use is considered as improper use.
Do not use this instrument in safety or emergency stop devices.
3.4 Responsibility of the operator
The instrument is used in the industrial sector. The operator is therefore responsible for legal obligations regarding safety at work.
The safety instructions within these operating instructions, as well as the safety, accident prevention and environmental protection regulations for the application area must be maintained.
3. Safety
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 
3.5 Personnel qualification
WARNING! Risk of injury should qualification be insufficient
Improper handling can result in considerable injury and damage to equip­ment.
The activities described in these operating instructions may only be carried out by skilled personnel who have the qualifications described below.
Skilled personnel
Skilled personnel, authorised by the operator, are understood to be personnel who, based on their technical training, knowledge of measurement and control technology and on their experience and knowledge of country-specific regulations, current standards and directives, are capable of carrying out the work described and independently recognising potential hazards.
Special operating conditions require further appropriate knowledge, e.g. of aggressive media.
3.6 Labelling, safety marks
Product label
The product label is located on the side of the instrument beneath the protective rubber boot.
Binary code
Serial no.
3. Safety
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Symbols
Before commissioning the instrument, ensure you read the operating instructions!
Instruments bearing this mark comply with the relevant European direc­tives.
This marking on the instruments indicates that they must not be disposed of in domestic waste. The disposal is carried out by return to the manufac­turer or by the corresponding municipal authorities (see EU directive 2002/96/EC).
4. Design and function
The model CEP6000 hand-held multi-function calibrator is a battery-operated hand-held instrument which can measure and output/simulate current, voltage, resistance, RTD’s, TC’s, frequency and pulses. In addition, external pressure sensors/pressure modules can be connected which enable pressure to measure with this calibrator. The WIKA model CPT6600 pressure modules and the Mensor model CPT6100/CPT6180 precision pressure sensors are compatible here.
4.1 Front foil
The following figures show the location of the input and output terminals and also the positions of the buttons on the calibrator.
3. Safety / 4. Design and function
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WIKA operating instructions, model CEP6000
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F1
HOME
7
F2 F3
89CE
E
N
T E
R
4
1
MEASURE / SOURCE
3W mA+
TC
V
mA
Loop
+ V
Hz
+
5
2
0
6
3
.
4W mA–
MEASURE
CEP6000
1
2
3
4
6
8
9
7 5
4.1.1 Connections
1
Connection for external pressure module
Connects the calibrator with a pressure module for pressure measurement.
2
Serial interface
Connects the calibrator with a PC for remote operation.
3
+
4
(Isolated) Current and voltage input as well as for output of DC 24 V voltage supply
Terminals for the measurement of current, voltage and separate current loop supplies.
5
Thermocouple input/output
Terminal for the measurement or simulation of thermocouples. Suitable for polarised miniature connectors for thermocouples.
6
+
7
Voltage, resistance thermometers (2-wire), frequency, pulse, input/output
Terminals for the simulation and measurement of voltage, frequency, pulse trains and resistance thermometers (RTDs).
8
+
9
Current, resistance thermometers (3-wire, 4-wire), input/output
Terminals for the simulation and measurement of current and also for resistance thermom­eter measurements with 3- and 4-wire connection.
4. Design and function
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WIKA operating instructions, model CEP6000
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F1
HOME
7
F2 F3
89CE
E
N
T E
R
4
1
MEASURE / SOURCE
3W mA+
TC
V
mA
Loop
+ V
Hz
+
5
2
0
6
3
.
4W mA–
MEASURE
CEP6000
1
2
3
4
6
8
7
5
4.1.2 Key function
1
Display
2
Function keys, used to operate the menu bar at the bottom of the calibrator display
The [F1] key acts to select the options in the left-hand box, the [F2] key acts for the selection of the functions in the middle box and the [F3] key for the selection of the functions in the right­hand box.
3
Modification of individual digits of the output value; increase, decrease or ramp output value
Use the left and right arrow buttons to select which digit in the output value should be changed. With the up and down arrow keys, the output value can be increased, decreased or changed to a ramp form.
4
Clear the input value
The last numerical value input will be deleted.
5
ENTER
Confirms the input of numerical values.
6
Numeric keys
Used for the input of numerical values.
7
HOME, returns to main menu
Reverts back to the start menu on the menu bar.
4. Design and function
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8
ON/OFF
Switches the calibrator on and off.
4.2 Batteries
4.2.1 Selecting the batteries or rechargeable batteries
The model CEP6000 works with four alkaline batteries (AA) or with four NiMH rechargeable batteries (AA).
4.2.2 Using the power supply unit
CAUTION! Physical injuries and damage to property and the environment
If alkaline batteries are used in the model CEP6000 hand-held multi­function calibrator, when the power supply unit is used at the same time, overheating, severe damage and leakage can occur. Leakage of electro­lyte from batteries presents a significant health risk.
Only ever use the power supply unit without batteries or with NiMH rechargeable batteries in the instrument.
Only use undamaged and fault-free power supply units.
Use WIKA accessories.
Using the power supply unit:
1. Remove alkaline batteries from the model CEP6000 hand-held multi-function calibrator or insert rechargeable batteries in the calibrator’s compartment.
2. Connect the power supply unit to the calibrator.
3. Insert the power cord into the power connector.
Ensure that the correct power supply is present when doing this.
The NiMH rechargeable batteries in the instrument are recharged slowly. Recharging takes between approx. 10 and 12 hours.
4. After use, disconnect the power cord from the mains and the calibrator.
4. Design and function
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5. Transport, packaging and storage
5.1 Transport
Check the model CEP6000 hand-held multi-function calibrator for any damage that may have been caused by transport. Obvious damage must be reported immediately.
CAUTION! Damage through improper transport
With improper transport, a high level of damage to property can occur.
When unloading packed goods upon delivery as well as during internal transport, proceed carefully and observe the symbols on the packaging.
With internal transport, observe the instructions in chapter 5.2 “Packag­ing and storage”.
If the instrument is transported from a cold into a warm environment, the formation of condensation may result in instrument malfunction. Before putting it back into operation, wait for the instrument temperature and the room temperature to equalise.
5.2 Packaging and storage
Do not remove packaging until just before use. Keep the packaging as it will provide optimum protection during transport (e.g. change in place of use, sending for repair).
Permissible conditions at the place of storage:
Storage temperature: -20 ... +70 °C
Humidity: 0 ... 90 % relative humidity (non-condensing)
Avoid exposure to the following factors:
Direct sunlight or proximity to hot objects
Mechanical vibration, mechanical shock (putting it down hard)
Soot, vapour, dust and corrosive gases
Hazardous environments, flammable atmospheres
5. Transport, packaging and storage
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Store the model CEP6000 hand-held multi-function calibrator in its original packaging in a location that fulfils the conditions listed above. If the original packaging is not available, pack and store the instrument as described below:
1. Wrap the instrument in an antistatic plastic film.
2. Place the instrument, along with shock-absorbent material, in the packaging.
3. If stored for a prolonged period of time (more than 30 days), place a bag containing a
desiccant inside the packaging.
6. Commissioning, operation
ATTENTION! Damage through electric shock
Higher voltages than the rated voltage can cause damage to the multi­function calibrator. With any damage to the case or the test cables, an electric shock can result from any contact.
Apply the correct rated voltage, see chapter 10 “Specifications”.
Do not use the calibrator if it is damaged. Prior to use check the case of the calibrator. Pay attention to missing plastic components and cracks, in particular to the insulation around the connections.
Do not use the calibrator in case of malfunction. The instrument protection might be compromised. In case of doubt, have the calibrator checked.
The battery compartment must be closed and sealed.
Change the batteries as soon as the battery symbol is displayed.
Always use the correct connector sockets, functions and measuring ranges for the measurement or simulation.
Only open the battery compartment once all cable connections have been disconnected from the calibrator.
Check the test cables for damaged insulation or bare metal compo­nents. Test the continuity of the test cables. Replace any damaged test cable before using the calibrator.
Do not touch the metal parts at the test cables.
As soon as the model CEP6000 hand-held multi-function calibrator is turned on, by pressing the ON/OFF key, it will go through a short self-test routine. During this routine, the display shows the current firmware version and the auto-shutdown status. The calibrator requires a maximum of 5 minutes warm-up to reach its specified accuracy. Large changes in ambient temperature may make a longer warm-up period necessary.
5. Transport, packaging and storage / 6. Commissioning, ...
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WIKA operating instructions, model CEP6000
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mA IN
0.000 mA
-25.00%
RTD IN 4W P10-385
MENU
-OL °C
LIGHT
2
3
4
7
6
5
1
6.1 Main display
The display of the multi-function calibrator is subdivided into 3 main sections: the upper display, the lower display and the menu bar.
The upper display is used for the measurement of direct current voltages, direct current (with or without loop voltage) and for pressure measurement.
The lower display can be used both for measurement and for simulation.
The menu bar (at the bottom of the display) serves for configuration of the upper and lower display (according to the desired function).
The following figure shows the location of the various display fields, which are described in the table.
Numeric display
Displays the numeric value of the measured or simulated signals. A measurement “OL” or “-OL” signals a value outside of the measuring range.
Display of the span
Only for the display “mA” and “mA LOOP”. Displays the current measured value with respect to 4 mA = 0 % and 20 mA = 100 %.
Units
Displays the corresponding unit for measurement or output/simulation. For “RTD” (resistance thermometer) and “TC” (thermocouple), °C or °F are offered; for “FREQ” (frequency) and “PULSE” (pulse), CPM, Hz or kHz.
1
2
3
6. Commissioning, operation
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Sensor type
For measurements and simulation of various resistance thermometers (RTDs) and thermocouples (TCs). All possible sensor types are stated in the specifications (see chapter 10 “Specifications”). The options also show the amplitude of the pulse or frequency simulation and the pressure unit.
Additional settings
Only available for the option “TC measurement” (thermocouple) and “RTD measurement” (resistance thermometer). With the option “TC”, this setting switches the cold junction compensation (CJC) on or off. With RTD measurements, this setting defines the number of wires for the measurement (2W = 2-wire measurement, 3W = 3-wire measurement, 4W = 4-wire measurement).
Input/output display
Switches the lower display between input mode (measuring) and output mode (output/simulation).
Primary parameters
Defines which parameter will be measured or outputted/simulated. The available options for the upper display are: “VOLTS IN” (input voltage), “PRESSURE” (pressure), “mA IN” (input current in mA) and “mA LOOP” (mA with DC 24 V voltage supply). The available options for the lower display are: “VOLTS” (voltage), “TC” (thermocouple), “RTD” (resistance thermometer), “FREQ” (frequency), “PULSE” (pulse), “PRESSURE” (pressure) and “mA” (current) or “mA 2W SIM” (current simulation).
6.2 Menu bar
The display parameters are managed via the menu bar, which is found along the bottom of the LCD display. The function keys [F1], [F2] and [F3] enable navigation through all levels and options of the menu bar. The upper menu level is the start menu. One can return to this at any time with the [HOME] key. There are three variants of the start menu: the input start menu, the output start menu and the pulse start menu.
6.2.1 Menu function “Measuring”
In the start menu for the function “Measuring”, only the options “MENU” and “LIGHT” are active. The option “MENU” calls the next menu level to the menu bar, i.e. to call the main
4
5
6
7
6. Commissioning, operation
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menu. Press the corresponding function key, [F1], to call the main menu. The option “LIGHT” switches on the backlight for the LCD display. Press the correspond­ing function key [F2] to switch on the backlighting.
6.2.2 Menu function “Output”
In the start menu for the function “Output” there are three active options “MENU”, “LIGHT” and “STEP” or “RAMP”. The first two options work just like in the start menu. The third option can be selected via the automatic output function menu option, and acts to switch on or off the selected automatic function. For further information, see chapter 6.5.2 “Using the automatic output functions”. The automatic output functions are stopped as soon as the menu is exited or the [HOME] key is pressed.
6.2.3 Menu function “Pulse output”
The pulse start menu also has three active options, “MENU”, “TRIG” and “COUNTS”. The options “TRIG” and “COUNTS” are used for pulse simulation. The function of these options is explained in chapter 6.5.7 “Pulse output”.
6.2.4 Menu function “UPPER”, “LOWER” and “MORE”
The next level of the menu bar is the main menu itself. Which levels are available under the main menu depends on the selected operating mode of the calibrator. The options are “UPPER”, “LOWER” and “MORE”. With “UPPER”, the selection menu for the parameters of the upper display will be called. With “LOWER”, the selection menu for the parameters of the lower display will be called. “MORE” switches to the next menu level.
MENU LIGHT
MENU LIGHT STEP
MENU TRIG
COUNTS
UPPER LOWER MORE
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6.2.5 Menu function “Automatic output function”
The “Automatic output function” is a menu function in the “Output” mode and is called by pressing “MORE”. The options are “AUTO FUNC”, “NEXT” and “DONE”. With “AUTO FUNC” the parameters of the automatic output function can be set. “NEXT” switches to the next menu function and “DONE” returns to the start menu. For further information, see chapter 6.5.2 “Using the automatic output functions”.
6.2.6 Menu function “Contrast”
The next menu level is the contrast menu. The options are “CONTRAST”, “NEXT” and “DONE”. The option “CONTRAST” acts to set the contrast. “NEXT” switches to the next menu function and DONE returns to the start menu. The contrast can be set with the arrow keys [F1, F2], which are displayed after selecting the option “CONTRAST”.
In certain cases, large changes in contrast can make the display difficult to read under normal conditions. If the display is too bright or too dark for the values to be read, the following steps should be taken in order to reset the contrast setting to the default.
1. Turn the instrument on while holding the [HOME] key down.
2. Hold this button down for 10 seconds in order to reset the factory settings for the
contrast. If the display is so light that it is not possible to see whether the instrument is switched on or off, use the button for the backlighting as an indication of this.
6.2.7 Menu function “Automatic switch-off”
The main menu for the automatic switch-off contains the options “AUTO OFF”, “NEXT” and “DONE”. The option “AUTO OFF” acts to switch on and off the automatic switch-off function and specifies how long the instrument remains in standby before it switches off. “NEXT” switches to the next menu function and “DONE” returns to the start menu.
AUTO FUNC
NEXT DONE
CONTRAST
NEXT DONE
AUTO OFF NEXT DONE
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6.2.8 Menu function “Frequency or pulse output”
When the lower display is used for frequency or pulse outputs, in addition, the sub-menu for frequency is displayed after the main menu. The options are “FREQ LEVEL”, “NEXT” and “DONE”. The option “FREQ LEVEL” enables the setting of the amplitude of the oscillation. “NEXT” switches to the next menu function and “DONE” returns to the start menu.
6.2.9 Menu function “Probe-specific coefficients”
If the calibrator is working in the “RTD CUSTOM” mode, following the main menu, the RTD menu for the user-defined configuration is displayed. The options are “SET CUSTOM”, “NEXT” and “DONE”. The option “SET CUSTOM” enables the input of the coefficients of a user-defined “PRT” (platinum resistance thermometer) into the calibrator. “NEXT” switches to the next menu function and “DONE” returns to the start menu.
6.2.10 Menu function “ZERO”
Resetting the pressure to the zero value is the final option on selecting “MORE” in the main menu and is only shown if an external pressure sensor is connected. The options are “ZERO”, “NEXT” and “DONE”. The option “ZERO” acts to reset the pressure to zero. “NEXT” switches to the next menu function and “DONE” returns to the start menu. For further information on resetting to 0, see chapter 6.4.4 “Measuring pressure”.
FREQ LEVEL
NEXT DONE
SET CUSTOM
NEXT DONE
ZERO NEXT DONE
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WIKA operating instructions, model CEP6000
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MEASURE / SOURCE
3W mA+
TC
V
mA
Loop
+ V
Hz
+
4W mA–
MEASURE
+
VOLTS IN
-0.000 V
VOLTS IN
MENU
5.000 V
LIGHT
Measuring voltage and frequency with the input and output terminals
6.2.11 Menu function “Parameter selection”
The menu for parameter selection is called via the main menu using “UPPER” or “LOWER”. The options are “SELECT”, “NEXT” and “DONE”. When selected, one param­eter flashes in the display. Using the option “SELECT”, the parameter can be altered. With the option “NEXT”, one can switch to another variable. “DONE” switches back to the start menu and accepts the selection.
6.3 Cursor control/set point control
The output value can be changed using the four arrow keys on the keypad. If an arrow key is pressed, a cursor appears under the last digit of the output value. Use the left and right arrow buttons to select which digit in the output value should be changed. With the up and down arrow keys, the output value can be increased or decreased. The menu bar will change to the set point menu, as soon as one of the four arrow keys is pressed.
The three function keys are assigned the values “0 %”, “25 %” and “100 %”. The value for 0 and 100 % can be saved through the input of a value, when the corresponding function key is held down at the same time. The key for “25 %” then switches to the value corre­sponding to 25 %.
6.4 Using the measuring modes (lower display)
6.4.1 Measuring voltage and frequency
To measure voltage or frequency, follow the steps below:
1. In the main menu, switch to the lower display “LOWER” and select “V” or “FREQ”.
2. The input/output setting must be set to “IN”.
3. Connect the test cables (see following figure).
SELECT NEXT DONE
0% 25% 100%
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WIKA operating instructions, model CEP6000
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MEASURE / SOURCE
3W mA+
TC
V
mA
Loop
+ V
Hz
+
4W mA–
MEASURE
+
mA IN
0.000 mA
-25.00%
mA IN
MENU
5.000 mA
LIGHT
Measurement of the current in mA at the input and output
terminals
6.4.2 Measuring current (mA)
To measure current in mA, follow the steps below:
1. In the main menu, switch to the lower display “LOWER” and select “mA”.
2. The input/output setting must be set to “IN”.
3. Connect the test cables (see following figure).
6.4.3 Measuring temperature
6.4.3.1 Using thermocouples
The calibrator supports the following types of thermocouples: B, C, E, J, K, L, N, R, S, T, U, BP and XK. The typical characteristics of all of these types are described in chapter 10 “Specifications”. The calibrator also has a “CJC” (cold junction compen­sation) function. In normal operation, the function will be activated, and it will measure the effective temperature of the thermocouple. If the option “CJC” is deactivated, the calibrator measures the differ­ence between the thermocouple at the connection point and the input terminal of the thermocouple.
The CJC option should only be deactivated when the calibration is being made with an external ice bath.
To measure temperature with the thermocouple, follow the steps below:
1. Connect the wires of the thermocouple to the input/output of the calibrator using the thermocouple mini-connector (see following figure).
mA IN
0.000 mA
-25.00%
TC IN CJC OFF B
MENU
OL °C
LIGHT
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WIKA operating instructions, model CEP6000
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MEASURE / SOURCE
3W mA+
TC
V
mA
Loop
+ V
Hz
+
4W mA–
MEASURE
+
Measurement of the temperature at the thermocouple terminal
Thermocouple plug
The connecting cable for the thermocouple must match the type of the thermocouple being calibrated.
2. In the main menu, switch to the lower display “LOWER” and select “TC”.
3. The input/output setting must be set to “IN”.
4. Select the corresponding thermocouple model in the menu.
5. Select temperature unit.
In the interests of optimum accuracy, wait 2 to 5 minutes so that the temperature between the mini-connector and the calibrator stabilises. After this, carry out the measurement.
The calibrator can measure the voltage of the thermocouple in mV, so that the tempera­ture can be determined with the aid of a table if the corresponding thermocouple type is not supported by the calibrator. For the case described above, proceed and select “mV” as the type.
6.4.3.2 Using resistance thermometers (RTDs)
The supported resistance thermometers are detailed in the specifications in chapter 10 “Specifications”. The specific characteristic of RTDs is their temperature-dependent resistance (R0). The calibrator can work with input signals with 2-, 3- or 4-wires, where input measurements with 4-wire connection are the most accurate.
To measure temperature with resistance thermometers, follow the steps below:
1. In the main menu, switch to the lower display “LOWER” and select “RTD”.
2. The input/output setting must be set to “IN”.
3. Select 2-, 3- or 4-wire connection “2W, 3W, 4W”.
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WIKA operating instructions, model CEP6000
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MEASURE / SOURCE
3W mA+
TC
V
mA
Loop
+ V
Hz
+
4W mA–
MEASURE
+
+
+
+
+
+
3W
4W
RTD
RT
D
RT
D
2W
mA IN
0.000 mA
-25.00%
RTD IN 4W P10-385
MENU
25.0 °C
LIGHT
Measuring the temperature with RTD probe connected
4. Select the corresponding RTD type in the menu.
5. Select temperature unit.
6. Connect the RTD wires (see following figure).
The resistance can also be measured with this function. For this, follow the steps as described above, and as RTD type, select “OHMS”. With this option and a measure­ment table, an RTD probe that is not programmed into the calibrator can also be used for measurement.
6.4.4 Measuring pressure
CAUTION! Pressurisation
Damage within the pressure system due to open valves.
1. Close the valve.
2. Release the pressure slowly.
3. Connect the pressure module to the pressure line.
ATTENTION! Damage to the threaded connections
The pressure module can be damaged by over-tightening the threaded connection.
Use suitable tools.
Tighten the pressure connection with a maximum of 13.6 Nm (torque spanner).
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F1
HOME
7
F2 F3
89CE
E N T E R
4
1
MEASURE / SOURCE
3W mA+
TC
V mA Loop
+ V
Hz
+
5
2
0
6
3
.
4W mA–
MEASURE
CEP6000
Connection for pressure measurement
Valve
Pressure
module
Pressure module
adapter
Never exceed the permissible maximum pressure.
Only use pressure modules with compatible media. See specification of the pressure module.
To measure pressure with external pressure modules, follow the steps below:
1. Connect the pressure module to the calibrator using the pressure module adapter (see following figure).
For the connection of the pressure module to the calibrator, a WIKA pressure module adapter must be used.
2. From the main menu, switch to the upper or lower display as required. The calibrator measures pressure in the upper as well as the lower display. In this way, pressure can be measured on two different units at the same time.
3. As the primary parameter, select “PRESSURE”.
4. Select the desired unit of measure.
With high-pressure modules, technical units of measure that are only used for low pressure ranges, such as inH2O, cmH2O, etc., are not valid selections. If one of these units is selected with a high-pressure module connected, “----” is shown on the display.
5. Set the pressure module to zero (ZERO). The function to reset the calibrator is found under the menu function “ZERO”.
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6.4.4.1 Zeroing of absolute pressure modules
To reset the calibrator to zero, set it so that it measures a known pressure, for example the barometric pressure.
To zero the calibrator, follow the steps below:
1. Call up the menu function “ZERO”.
2. Select “ZERO”. “SET REFERENCE ABOVE” will
be displayed.
3. Enter the reference pressure via the keypad.
The calibrator saves the barometric reference value in permanent memory. The reference value will always be saved for an absolute pressure module. If a new absolute pressure module is connected, this procedure must be repeated.
6.5 Using the output modes (lower display)
The calibrator can generate signals for testing and calibrating process instruments. It can simulate voltage, current, resistance, frequency, pulses and the electrical output signal of a resistance thermometer or a thermocouple.
6.5.1 Setting the output parameters 0 % and 100 %
To enter the 0 % and 100 % points, follow the steps below:
1. Select the lower display “LOWER” from the main menu and then select the required
function.
2. Select the output “OUT” at the input/output setting and enter the desired value.
(example: “VOLTS OUT”).
3. On the keypad, enter (for example) 5 V and press the enter key.
4. Press one of the arrow keys in order to select the set point setting from the menu.
5. Hold down the function key for “0 %” [F1]. The value 0 % will flash for a short time and
the set point (e.g. 5 V) will be saved.
6. Repeat these steps with (for example) 20 V and hold down the function key for “100 %”
[F3].
7. With the function key for “25 %”, it is now possible to move between 5 V and 20 V in
steps of 25 %.
PRESSURE
-------
psi
PRESSURE mbar
MENU
-------
LIGHT
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WIKA operating instructions, model CEP6000
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mA LOOP
0.000 mA
-25.00 %
mA OUT
MENU
5.000 mA
LIGHT
+
UUT
MEASURE / SOURCE
3W mA+
TC
V
mA
Loop
+ V
Hz
+
4W mA–
MEASURE
Connection for use as a mA source
6.5.1.1 Increasing the output current in steps
To use the 25 % function with an output signal in the milliampere range, follow the steps below:
1. Select the option “mA” for the lower display from the main menu.
2. With the key for “25 %”, it is possible to move between 4 mA and 20 mA in intervals of 25 %.
6.5.2 Using the automatic output functions
The step function and automatic ramp function are available as automatic output functions. The selected function can be switched on and off via the start menu (“STEP” or “RAMP”). The automatic output parameters can be set in the menu via “Automatic output function”.
The parameters include:
Which automatic output function is available (step function or ramp function).
The time for the automatic output function defines the time between the individual steps or, in the ramp function, the time between the first and second limit value in the ramp.
The limit values for the ramp mode and step function are set to 0 % and 100 %. For further information, see chapter 6.5.1 “Setting the output parameters 0 % and 100 %”. The step increase is made in 25 % steps from 0 % to 100 %.
6.5.3 Current output
To output a current, follow the steps below:
1. In the main menu, switch to the lower display “LOWER” and select “mA”.
2. The input/output setting must be set to “OUT”.
3. Connect the test cables to the terminals for current output (see following figure).
4. Enter the desired current value via the keypad.
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Position of the HART™ jumpers
HART™ resistor
Circuit board
6.5.3.1 HART™ resistor selection
The CEP6000 can be configured so that the 250 Ω resistor for HART™ compatible instruments can be activated within the CEP6000. If the internal 250 Ω resistor within the
CEP6000 is used, a serial resistance for the calibration of HART™ modules must not be activated.
When using the internal 250 Ω resistor, the maximum load resistance is reduced from 1,000 Ω to 750 Ω, at a current of 20 mA.
6.5.3.2 HART™ resistor, activation/deactivation procedure
1. Remove the battery cover and loosen both of the screws on the upper part of the case.
2. Remove both of the screws on the lower part of the case.
3. Carefully remove the upper half of the case from the lower half.
The following picture indicates the position of the HART™ jumpers.
6. Commissioning, operation
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OFF
ON
ON
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WIKA operating instructions, model CEP6000
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+
UUT
MEASURE / SOURCE
3W mA+
TC
V
mA
Loop
+ V
Hz
+
4W mA–
MEASURE
mA LOOP
0.000 mA
-25.00%
mA OUT
MENU
6.000 V
LIGHT
MEASURE / SOURCE
3W mA+
TC
V
mA
Loop
+ V
Hz
+
4W mA–
MEASURE
+
+
UUT
mA IN
0.000 mA
-25.00%
mA 2W SIM
MENU
4.000 mA
LIGHT
Connection for the transmitter simulation
Connections for voltage, frequency and pulse outputs
30 V max.
Voltage
supply
6.5.4 Simulating a transmitter
To use the calibrator to simulate a transmitter in a current loop, follow the steps below:
1. In the main menu, switch to the lower display “LOWER” and select “mA 2W SIM”.
2. Enter the desired current with the keypad.
3. Connect the test cables to the terminals for current input (see following figure).
3. Connect the external DC 24 V voltage supply (see following figure).
6.5.5 Voltage output
To output a voltage, follow the steps below:
1. In the main menu, switch to the lower display “LOWER” and select “VOLTS”.
2. The input/output setting must be set to “OUT”.
3. Connect the test cables to the terminals for voltage output (see following figure).
4. Enter the desired voltage value via the keypad.
6. Commissioning, operation
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