Reading the User Manual1-2
Further Safety Instructions1-2
Predictability of Dangers1-3
Proprietary Rights1-3
Conformity Declaration1-3
Proper Utilization as intended1-3
Availability of the User Manual1-5
2 GETTING STARTED 2-1
2.1 Delivery2-1
2.2 Safety Guidelines2-2
Utilization2-2
2.3 Safety Symbols2-3
2.4 Accident Prevention2-3
2.5 Connecting the Unit to Main Power2-3
2.6 Grounding2-4
2.7 Warranty2-5
2.8 Certificate2-5
2.9 Turning it on2-5
2.10 Connection of Measurement Leads2-6
Operation with rear panel inputs and Scanner2-8
2.11 Rack Mounting2-8
2.12 Miscellaneous2-9
Conforming to the Norm EN 610102-9
Scanner with Model 5017SC2-9
Preselecting the Command Set for Remote Control4-19
Selecting the Temperature Sensor4-20
Activating the Loudspeaker4-21
Setting the Display Formats4-21
Setting the Scanner Mode4-23
4.12 Error Messages4-24
5 REMOTE CONTROL 5-1
5.1 Configuration5-1
Select Interface5-1
Configuring the RS232 Interface5-1
Configuring the IEEE-488 Interface5-2
Define the Command Set5-2
5.2 General Information concerning Remote Control5-3
5.3 Special Features for the RS232 Interface5-3
5.4 Capabilities of the IEEE-488 Bus Interface5-4
General IEEE-488.1 Messages5-4
5.5 RS232 / IEEE-488.2 Common Commands5-5
*CLS, Clear Status Command5-5
*ESE Standard Event Status Enable Command5-6
*ESE? Standard Event Status Enable Query5-6
*ESR? Standard Event Status Register Query5-6
*IDN? Identification Query5-7
*OPC Operation Completed Command5-7
*OPC? Operation Completed Query5-7
*RST Reset Command5-7
*SRE Service Request Enable Command5-8
*SRE? Service Request Enable Query5-8
*STB? Read Status Byte Query5-8
*TST? Self Test Query5-9
*WAI Wait-to-Continue Command5-9
5.6 Structure of the Registers5-10
5.7 Operation as Listener5-11
5.8 Display Mode5-14
5.9 String Length Selection5-16
5.10 SRQ Mode5-16
5.11 Operation of the Digital Multimeter as TALKER5-16
Description of the Message Record Sent5-17
Table of Device Messages sent by the Multimeter5-18
Meaning of the Transmitted Characters5-19
5017 as Talker5-25
Difference between 5017 and 6001 concerning hardware5-27
6 CALIBRATION 6-1
6.1 Calibration Periods6-1
6.2 PREMA Calibration Service6-1
6.3 Necessary Equipment6-1
6.4 Automated Calibration6-2
6.5 Important Steps prior to Calibration6-3
6.6 PIN Number and Calibration Switch6-4
Changing the PIN Number6-5
6.7 Offset Correction6-6
6.8 Calibrating DC Voltage6-7
Offset Correction for DC Voltage6-7
Calibration of DC Voltage6-7
6.9 Calibration of Resistance Ranges6-8
Offset Correction6-8
Calibration of Resistance6-8
6.10 Calibration of AC Voltage6-9
6.11 Calibration of DC and AC Current6-9
6.12 Calibration of Temperature6-9
6.13 Storing Calibration Values6-11
7 OPERATING INSTRUCTIONS 7-1
7.1 DC Voltage Measurement7-1
Input Resistance in DC Voltage7-1
Series Mode Suppression7-2
Common Mode Suppression7-3
Thermal Voltages7-3
Noise Effects Through Inductive Interferences7-4
7.2 Resistance Measurement7-5
Two-Wire Resistance Measurement7-5
Four-Wire Resistance Measurement7-7
Power Dissipation in the Resistors7-8
With the Digital Multimeter 5017 you are now the owner of a 7 ½ digit measuring
instrument of the newest generation from PREMA.
This instrument is convincing by virtue of its outstanding measuring capabilities and
functional versatility.
1.1 Features
The following features of the 5017 are of special interest:
• Very good stability with only 4 ppm tolerance and annual drift of 20 ppm.
Additional measuring functions such as frequency and period duration.
•
• Temperature measurement with various Pt sensors
(Pt10, Pt25, Pt100, Pt500 and Pt1000)
• Good system capabilities with the RS232 and the IEEE-488 interface
• Large clearly readable liquid crystal display (LCD)
• Standard case dimensions: Half 19 inch width and 2 height units.
The 5017SC with built-in scanner for up to 80 measuring
•
points (80x1-pole, 40x2-pole, 20x4-pole)
1.2 Various Versions
In the standard version, the 5017 is fitted with banana safety sockets on the rear in
addition to the front panel sockets. A scanner is incorporated in the 5017SC. The
scanner connections are located on the rear panel in the form of 50-pole SubD sockets. An adapter card is available (see chapter ‘Accessories’) for connecting the scanner via screw terminals.
Prior to using the connections on the rear, a plug strip connector must be transferred
inside the instrument. The designator "Rear" is then lit in the display.
For the 5017SC current measuring ranges and the 1000V range can be selected only
when using the front panel sockets (maximum permissible voltage 125 Vpk at the
scanners rear input).
Proper working procedure with this instrument is possible only after reading all instructions, hints and procedure specifications attentively and understanding them.
Please get in touch with PREMA before commencing operation of the instrument if
you do not understand something in the user manual or the instructions, procedural
descriptions and safety regulations are unclear.
This user manual has been written to make the instrument understandable for operation in the manner intended. It contains important instructions for safe, correct and
efficient operation of the instrument.
Dangers are avoided, repair costs and downtime reduced and the service life of the
instrument is extended only when these instructions are observed. The user manual
should always be available at the place where the instrument is operated.
Incorrect manual control or failure to observe the instructions given here may endanger persons (also third parties) or cause material damage.
Personnel entrusted with operating this instrument must have read this user manual
attentively and must be familiar with all safety instructions.
In addition to the instructions given in this user manual, the local regulations for preventing accidents in force at the operating site apply, as well as the relevant rules for
safe and proper working procedure.
Further Safety Instructions
Further safety instructions are contained in the chapter headed "Getting
Started".Explanations and instructions are given there for the warning signs and symbols on the instrument for recognising specific sources of danger. It is essential to
observe and comply with all safety instructions. The warning symbols must be held
complete and in good readable condition.
The manufacturer cannot anticipate every conceivable danger.
If a task is not carried out in the manner recommended, the operator must make sure
that this does not entail any danger for himself and other persons.
He should also make sure that the instrument cannot be damaged or endangered by
the chosen manner of operation.
This user operating manual is not an instruction manual for making repairs.
The instrument should be returned to the factory for any necessary repairs.
Proprietary Rights
This user manual is protected by proprietary rights. No part thereof may be copied,
reproduced or distributed in any form without prior written permission.
Conformity Declaration
PREMA has issued an EC conformity declaration for this instrument. This declaration
certifies that the instrument complies with the relevant requirements of the EC directives.
Proper Utilization as intended
These instruments have been built conforming to the recognized technical safety principles, but nevertheless if it is not used and operated in the manner intended, dangers
may arise for body and life of the user or third persons, or damage may be incurred by
the instrument and other objects.
The instrument may therefore be operated only in technically perfect condition, in the
manner intended and with due awareness of safety considerations and dangers, observing the contents of the user manual and the regulations for the prevention of accidents. It should be used exclusively for the tasks described in this user manual.
All faults on the instruments which impair the safety of the user or third persons must
be remedied immediately.
PREMA accepts no liability for damage resulting from utilization of this instrument
in any manner other than the intended manner described in the user manual. The user
alone carries the risk and responsibility for any deviating utilization of the instrument.
The user manual must always be available at the place where this instrument is operated. The personnel entrusted with operation of this instrument must be familiar with
all task procedures described in the user manual and with all safety instructions.
All warning and safety instructions attached to the instrument must be held complete
and in clearly readable condition.
No modifications, attachments or conversions of the instruments are permitted without consent and approval by PREMA, otherwise the conformity becomes void.
Every PREMA unit is thoroughly and carefully checked before it is shipped, to ensure
that it is in flawless condition, and that its technical characteristics are within specifications.
Consequently, upon receipt, the unit should be in perfect condition, mechanically and
electrically.
To make sure that the unit has not been damaged during transport, it should be thoroughly checked out immediately after receipt. If damage is detected, a damage claims
form should be completed with the shipping carrier.
Please use the following list to assure that delivery is complete:
)
1. Power Cable
2. User Manual, English
3. Calibration Certificate with Date and Signatures
4. Product Registration Card, which you should fill out and mail back to
PREMA
5. Any optional equipment ordered
Please ensure also, that the unit is set up for the right AC Voltage, with the right type
of fuse (see chapter “Connecting the Unit to Main Power”).
Important: Do not throw the box and packaging materials away!
If the unit has to be sent back to the factory for recalibration or repair,
only the original packaging materials will provide sufficient protection
against damage.
Also refer to the safety guidelines in the “Introduction” chapter, please.
The multimeter may only be operated if it is in perfect and safe condition. Accident
prevention and environmental protection rules must also be followed.
All power-up and power-down procedures described next must be followed. Problems, such as loose connections, damaged or scorched cables, oxidized contacts, and
damaged fuses must be immediately removed by a professional.
A safe and ecologically sound disposal of operating and support materials, as well as
replacement parts, must be arranged. Only genuine replacement parts shall be used.
Otherwise, the manufacturer’s warranty and the multimeter’s conformity will be
voided.
Any changes to the multimeter, which cause any functional changes, may only be carried out by the manufacturer, or after discussion with and permission by the manufacturer.
Note:Switching operation to the rear panel connectors (or to the scanner) may
only be carried out by a professional (see “Connection of Measurement
Leads").
Utilization
The multimeter may only be utilized for the measurement functions that are described
in the Technical Specifications. It is especially important to adhere to the load limits
of the input connectors. PREMA accepts no responsibility for any damage arising
from improper operation.
The signs and symbols on the multimeter, which provide guidelines for safety and
handling, are displayed and described below.
!
Please consult the manual (see “Connection of Measurement
Leads” and Chapter “Operating Instructions”).
This symbol makes the user aware, that a dangerous
voltage can be present at measurement connectors.
The CE mark means, that the manufacturer has issued an
EC Declaration of Conformity for this multimeter. This declaration
certifies, that this multimeter conforms to the pertinent requirements
of EC directives.
2.4 Accident Prevention
While using this measurement unit, precautions to prevent an accident should be
taken, appropriate to the use of a measurement device.
This symbol advises the user of a possible danger area.
It is especially important to observe , that during current measurement, a very low
impedance i.e. 0.1Ω exists between the Hi and Lo connectors, so that a current/voltage, which is applied to the Hi connector, can be contacted by a cable that is
connected to the Lo connector.
2.5 Connecting the Unit to Main Power
This PREMA measurement unit is designed to be connected to AC Main Voltage, at a
frequency of 50 Hz or 60 Hz. The rear panel of the unit is equipped with a standard
DIN grounded power connector.
Before connecting the unit to power, you should make sure that it is set to the right
voltage (indicator and fuse).
The voltage selection switch with integrated fuse is located right under the power
connector, where you can also read off the current voltage setting; a setting of
"220V" represents an AC voltage from 220V to 240V, "110V" represents a voltage
from 100V to 120V.
Switching the AC Voltage is done as follows:
)
1. Unplug the unit.
2. The clamp for the fuse is located between the plug and the power selector and
must be removed. For a setting of "110V" you will need a fuse rated at 0.4A;
for "220V" you’ll need a fuse rated at 0.2A.
3. Place the necessary fuse in the clamp and push the clamp back in.
4. Turn the cylinder with the voltage indicators once left or once right to the desired setting, so that the voltage that is currently set is indicated by the white
arrow on top.
The indicators are used as follows:
SettingVoltage Range
110 V90 V
220 V180 V
to 130 V
RMS
RMS
to 265
RMS
RMS
Table: Main Voltage Ranges
2.6 Grounding
In order to protect the user, the unit’s case is grounded through the grounding lead of
the power cable. To ensure proper grounding, the power cable should always be connected to a properly grounded power connector.
The unit case is galvanically separated from the measurement connectors and interface ports.
The back of the unit is equipped with a grounded screw, identified by the
bol, where the user can connect a separate ground line (rack mounting bracket).
PREMA warrants the reliable function of the unit for a period of two years from the
date of delivery.
Repairs that need to be carried out during the warranty period are not billed to you.
Damage caused by inappropriate use of the unit, or by surpassing specified limits,
does not fall under PREMA’s warranty obligations.
Please be aware, also, that PREMA will not be held liable for damages, incidental or
coincidental, associated with the use of this measurement device.
2.8 Certificate
Each Digital Multimeter 5017 is provided with a calibration certificate at the factory,
certifying the location, date, and traceability of the unit’s calibration to the user.
Please look for this certificate at delivery time. It can also be useful as a control for
yearly recalibrations, since PREMA warrants that the unit will remain within specifications for one year, and recommends recalibration after that time.
2.9 Turning it on
The multimeter can be switched on with the
STANDBY KEY
cable. A device setting with measurement function, range and time can be stored as a
power-on setting in the "Configure Menu, Settings, Save Settings".
Switch off the instrument also with the
STANDBY KEY
The 5017 is then in standby mode. The red LED at the bottom left of the front panel
lights up.
The analog board of the unit is provided with power, even in standby mode, so that no
warm-up time needs to be taken into account when the unit is turned on.
Otherwise, warm-up times, as provided in Chapter “Technical Specifications”, should
be heeded.
after connecting the power
.
Note:The transformer is not disconnected from Mains Power in standby
mode.
The instrument starts automatically with power-on after switchingoff the unit by pulling the power cord.
The measurement inputs are implemented as safety connectors. PREMA strongly recommends the use of safety banana plugs with contact protection (see Appendix A,
“Accessories, Safety Lead Set”).
V-Hi Connector
Amps-Hi
Connector
SenseHiConnector
Sense-Lo
Connector
V-Lo Connector
Figure: Measurement Connectors
If the 5017 is not equipped with the Scanner option, safety input connectors are also
installed on the rear panel of the unit.
Ω
V
HiHi
Amps
Ω
4 W Sense
LoLoHi
Figure: Rear Panel Input Connectors
Connection of measurement leads should be carried out according to the table on the
next page.
In order to switch to the rear panel input connectors, please read the upcoming section, “Operations with rear panel inputs and Scanner.”
The following table gives information about the connection of measurement cables:
MeasurementHi ConnectorLo Connector
DC and AC VoltageV-Hi ConnectorV-Lo Connector
2 Getting Started
DC and AC CurrentAmps-Hi Connec-
tor
2-wire ResistanceV-Hi ConnectorV-Lo Connector
4-wire Resistance
Source
Sense
Temperature with RTDs
Source
Sense
Frequency / Period
Voltage
Current
Continuity Test V-Hi ConnectorV-Lo Connector
V-
Hi Connector
Sense-Hi Conn.
V-
Hi Connector
Sense-Hi Conn.
V-Hi Connector
Amps-Hi Conn.
V-Lo Connector
V-
Lo Connector
Sense-Lo Conn.
V-
Lo Connector
Sense-Lo Conn.
V-Lo Connector
V-Lo Connector
Table: Connection of Measurement Cables
In dealing with the Scanner option, please refer to chapter "Technical Specifications"
for information on measurement cable connections. There you will find a full description of the 50-line Sub-D connectors on the rear panel of the unit.
If the 5017 is to be operated from the rear panel inputs or the built-in scanner, please
proceed as follows:
)
1. Please remove all measurement cables from the connectors and
unplug the unit.
2. Turn the unit upside down, so that it is lying on its top shell.
3. Remove the four screws from the unit case's bottom shell.
4. Remove the unit case's bottom shell.
5. Tightly grasp and remove and then swap the two front-rear cable-set connectors that are visible on the left, as seen from the front panel of the unit. Only
the rear cable-set connector is connected to the preamplifier input circuitry.
The front cable-set connector is essentially a place-holder for the input that is
not being used.
6. While re-sealing the case, make sure that no wires are caught anywhere.
After turning the unit on (of course, you should first re-seal the unit’s cover) the
channel indicator field in the display will show the indication “REAR,” or a channel
number (if the Scanner is installed).
The software automatically checks for any rear-panel connections when the unit is
turned on and tests if the cable set connector has been moved from front panel input
to rear-panel input.
2.11 Rack Mounting
A rack adapter with two height units is offered for the 5017. The unit has a width of
one-half 19-inch, so it can be combined with another half-19-inch unit. More information about rack mounting can be found in the Chapter “Accessories.”
When installing the unit into a 19-inch rack, you should take into account, that the
ventilation openings in the back are not covered up. In addition, it should be possible
to cut power to the unit in an emergency, through the use of an EMERGENCY OFF
switch somewhere nearby.
Note:When the unit is installed in a 19-inch rack, and is to be operated through
the rear panel inputs or the Scanner, please make sure that the front-rear
cable-set connector in the unit has been connected to rear-panel input, prior
to installing the unit into the rack (see the previous section on
“Connection of Measurement Leads”).
The Digital Multimeter 5017 is produced according to EN 61010. This means the
highest possible level of safety for the user, in relation to “dangerous body currents,”
“high temperatures,” and “mechanical endangerment".
This has the consequence, that this unit cannot be switched from front-panel to rearpanel input with a switch, as is found with multimeters of other brands.
The minimum of 5.5mm clearance and creepage distance at a nominal voltage of
1000Vdc is not implemented by standard slide switches. When 1000V are applied to
the front input connectors, and a switch to the rear input connectors is effected by
slider switch, a dangerous transfer of high voltage from the front inputs to the rear
inputs can occur.
In our opinion, the manual re-positioning of the Front-Rear cable-set connector is not
the most elegant, but certainly the safest solution at the moment. This does not mean,
however, that PREMA will not come up with a completely new solution in the future.
Scanner with Model 5017SC
For the model 5017SC with integrated scanner it is important to take the DC and AC
voltage limits of the Scanner into account, depending on which option is installed.
The input voltage at the rear panel is limited to 125 Vpk with the standard scanner
option.
The limit of 1000Vpk continues to be valid for the front input connectors only.
Current measurement and the 1000V range can only be selected while using the front
input connectors .
When the unit is turned on for the first time, the following settings are defaulted to:
Measurement Function Vdc
•
Measurement Range 300V
•
Measurement Time 1s
•
Front Input Connectors Active
•
Automatic Filter On (AVG 10)
•
Pt100 sensor for temperature measurement
•
• all other functions switched off
The power-on setting can be stored in the menu "Configure, Settings, Save" .
You can set the instrument to the factory settings with the menu "Configure, Settings,
Load Fact, Set".
3.2 Scanner (5017SC)
You can find the inputs of the scanner on the rear panel of the instrument. When delivered the front input connectors are active.
The connections to the scanner can be done with two 50-pole sub-D connectors or
two adaptercards 3110 (see chapters "Accessories" and "Technical Specifications").
max. Resolution in the smallest rangeVdc: 10nV Vac: 100nV
Frequency RangeVac: 20 Hz to 1 MHz
Amps
HIHI
V
Ω
LO
Ω4
Sense
+
DC or AC Voltage
__
Figure: Connection of measurement leads in Voltage Measurement
The rear plugs are connected correspondingly.
For model 5017SC with scanner the measurement leads are connected to Hi and Lo of
the respective channel.
max. Resolution in the smallest range7½ digits, 10µ
Ω
LO
Ω4
Sense
Resistance
2-wire
AmpsV
HIHI
Ω
Figure: Connection of leads in resistance measurement (2-wire)
AmpsV
HIHI
Ω
LO
Ω4
Sense
Resistance
4-wire
Figure: Connection of leads in resistance measurement (4-wire)
The rear plugs are connected correspondingly.
For model 5017SC with scanner the measurement leads are connected to Hi and Lo
(2-wire) or Hi, Lo (Source) and SHi, SLo (Sense) of the respective channel.
Figure: Connection of measurement leads for RTD Sensors
key again
The rear plugs are connected correspondingly.
For model 5017SC with scanner the measurement leads are connected to Hi, Lo
(Source) and SHi, SLo (Sense) of the respective channel.
Frequency for Vac
Period for Vac
Frequency for Iac
Period for Iac
VAC
VAC
IAC
IAC
key and
key and
key and
key and
FREQ
PERIOD
key
FREQ
PERIOD
key
key
key
Select first the function Vac or Iac and adapt the right measurement range. Then select the frequency function.
Time Base10ms / 100ms / 1s / 10s
Resolution
Frequency1 Hz, max. 7½ digits, max. frequency 1MHz
Period Vac: 40µs to 5s / Iac: 100µs to 5s
AmpsV
HIHI
ΩΩ4
LO
Sense
+
Frequency and Period
Measurement
__
with Voltage
Figure: Connection of Leads in Freq. Meas. of a Voltage
AmpsV
HIHI
ΩΩ4
LO
Sense
+_Frequency and Period
Measurement
with Current
Figure: Connection of Meas. Leads in Freq. Meas. of a Current
The rear plugs are connected correspondingly.
For model 5017SC with scanner the measurement leads are connected to Hi and Lo
(Voltage) of the respective channel.
Frequency measurement of a current is only possible through the front plugs.
key is used to automatically pre-select a measurement range (2nd +
Ø key and the × key. The 2
MenuOut key). The “AUTO” indication then appears in the status display.
If the measurement range is set manually, and a measurement signal is too large for
that range, “Overflow” will be indicated on the display.
If automatic ranging is on, a higher measurement range is automatically selected
when a display of about 190 000 *) digits is reached. A lower measurement range is
selected when a reading of lower than about 10 000 *) is reached.
Automatic range switching occurs within <5ms.
ND
-
Note:The measurement range and the integration time are stored for every
The user friendly design of the front panel permits quick and effective working with
this instrument. On the one hand the keyboard provides direct access to important
functions of the instrument such as measuring function and range setting, preselection
of the measuring time and activation of a mathematical program. On the other hand,
more complex settings can easily be made with the cursor and menu control.
Front view of the 5017
Blue legend is present under some of the keys. The functions corresponding to this
legend are activated after first pressing the 2nd key (second function key).
Apart from the normal function assignment, some keys have a numerical second
assignment. This second assignment is activated when it is necessary to make
numerical entries, for example in the mathematical programs or for calibration.
The alphanumeric liquid crystal display (LCD) shows the measurement reading, the
measuring unit and a status display (or the currently active channel or the set
measuring time).
MATH FILT REM
REAR
9 ÞÞßß
STORE ADR
Display Elements
1 to 10Used to display the 5½- to 7½ digit measurement reading or
calculation result with sign, or error messages.
11 to 12Used to display the selected measuring function.
DisplayMeasuring function
V / mVDirect voltage
V~ / mV~Alternating voltage
V=~ / mV=~Alternating voltage with
A / mADirect current
AUTO TRIG
direct voltage component
A~ / mAAlternating current
A=~ / mAAlternating current with
direct current component
HzFrequency
sPeriod duration
°C, K, °FTemperature
13REAR for input sockets activated on the rear panel
14 to 16Channel number display when "Channel" has been chosen in
menu "Device, Display". Is active only when the
measuring points scanner is activated.
or
14 to 16Mathematical display when "Math" has been chosen in menu
"Device, Display". Is active only when mathematical functions
are . selected.
or
14 to 16Seconds counter when "Sec-Counter" has been chosen in menu
"Device, Display". The seconds counter is active only when the
measuring time is 4 seconds or longer.
Further information on the display is contained in the chapter headed "Quick Start".
4.3 Measuring Inputs
For connecting the measuring signals, the 5017 is equipped on the front panel and
optionally on the rear panel with low thermoelectric EMF safety sockets for banana
plugs.
With the 5017SC with built-in measuring points scanner, switchover to the scanner
inputs is possible internally in the instrument.
Read chapter ‘Getting Started’ headed "Connection of Measurement Leads" for the
instructions for switching over to the inputs on the rear of the instrument.
The signal which is to be measured should always be connected in such a way that the
lead closest to ground potential is connected to the black input socket (LO) and the
line with the higher potential is connected to the red input socket (HI). The display
then shows a reading with positive sign.
Please read chapter ‘Getting Started’, "Connection of Measurement Leads" for
connecting the measuring cables for each measuring function.
The pinout of the measuring inputs of the measuring points scanner is specified in the
chapter "Technical Specifications".
Limiting Data for the Measuring Inputs
The stipulated limiting data must be observed when connecting signals to be
measured. These limiting data are stated in red legend on the front panel adjacent to
the corresponding input connectors (Vpk means peak volts).
Measuring InputFront or Rear SocketsMeasuring Points Scanner
All measuring functions are selected with a single keystroke. Period duration,
Vac+dc and Iac+dc must be activated by first pressing the 2
ND KEY
. The selected
measuring function appears in the display immediately after pressing the key. The
first reading is displayed after elapse of the set integration time plus an internal
waiting time.
4.5 Measuring Range Selection
The measuring ranges can be set in fixed manner or they can be selected
automatically by the instrument. Automatic selection is made with the AUTO
function (2nd +
MENU OUT
The Ø-KEY switches to the next lower range. The ×-KEY switches to the next
higher range. The position of the decimal point indicates the currently selected
measuring range.
KEY).
The following table gives an overview of the measuring ranges which can be set.
The mathematical programs are used to convert the displayed measurement reading
according to a specified formula.
Selection / Manual Control
The manual control procedure is as follows:
KeypressDisplay / Action
4 Manual Operation
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
MENU-IN KEY
MENU-IN KEY
Ø
KEY
-
MENU-IN KEY
MENU-IN KEY
MENU-OUT KEY
MENU-IN KEY
MENU-OUT KEY
Ø
Ø
/ ×-
KEY
-
KEY
-
KEY
0$7+(0$7,&6
If this display does not appear, press the ×-
KEY
until it appears.
D[E
The asterisk means that this program is selected.
Press repeatedly until the desired mathematical program appears in
the display.
/LQ D[E
Describes the conversion formula of the program
Ø×
KEYS
(or press the
until the formula appears)
D (
Switches to input mode for the constant
D (
Numerical entry possible. The digit is selected with theØ×-
(see blue legend)
Terminates the entry without takeover of the number entered.
Takes over the entry.
Selects further constants, if any.
Steps up one menu level higher.
KEYS
11.
MATH KEY
Activates / deactivates the previously
selected mathematical program.
Table: Selecting a mathematical program
The input of the constants have to be in the displayed unit and not in the physical unit.
For example you want to calculate in the resistance measurement, range 3 kΩ and the
constant is ‘5000.000’ please enter 5.000.
This menu activates start mode. Triggering can be performed manually or via the
external trigger socket.
KeypressDisplay / Action
1.
2.
3.
4.
5.TRIG: 2 X 2ND-K
MENU-IN KEY
MENU-IN KEY
MENU-IN KEY
MENU-OUT KEY
EY
&21),*85(
If this display does not appear, press the ×-
KEY
until it appears.
6WDUW0RGH
6WDUW0RGH
activates / deactivates start mode.
Takes over the entry and steps up one menu level higher; press
repeatedly to reach the measurement display
Measurement of a value is started manually
Table: Selecting start mode
Filter
To increase disturbance suppression for better stability of the measurement readings,
the input signals can be passed through a digital filter which operates as moving
average filter for the last ten readings. After the first ten readings have come into the
filter loop, each new reading thereafter replaces the oldest one.
Two filters are available:
• Automatic average value filter (Auto Filter)
• Fast Automatic average value filter (Fast Auto Filter)
The automatic filter calculates the moving average over ten readings and
additionally the difference between the last two successive readings, comparing this
result with a difference value preset in the factory (depending on measuring range,
function and time). The filtering process is restarted when the difference exceeds the
value preset in the factory.
The filtering process also restarts when function, range or measuring time are
reselected.
Fast Automatic Filter (Fast Auto Filter)
similar to the automatic filter, but the first value after switching of channels or ranges
is more stable.
Moving Average Filter (Avg. Filter)
The moving average filter operates according to the same principle as above but
does not permit any signal-dependent restarting of the filter loop.
This filter is restarted when a function, range or measuring time is selected and after
pressing the
FILTER
KEY.
This kind of filtering achieves additional disturbance suppression by more than
20 dB.
The following information items are saved in the power-up status:
• The measuring function for each channel
• The measuring range for each channel
• The measuring time (resolution) for each channel
• The filter setting
• The scanner mode
• The mathematical program and constants
• The temperature sensor
• The LCD contrast
The measurement range and measurement time are stored during operation for each
function, but this information is lost when switching off the instrument.
OverflowMeasuring range overflow
Sensor?Resistance of the sensor overshoots/undershoots the
defined range
Div/0Division by zero in a mathematical function
Br. wiresOpen source line in 4-wire resistance measurement
Offset too highOffset too large after pressing the zero key
Polarity?Ω/4: Source or Sense are not connected with the right
polarity
Cal. ErrorCalibration error
reading too lowMeasurement reading too small
value too lowValue too small
value too highValue too large
not mathematicsNot for mathematics
not temperatureNot for temperature measurement
Scanner Mode?Scanner mode unsuitable
Front Input OnlyOnly at front sockets (e.g. current measurement)
invalid PINInvalid PIN number for calibration
This chapter describes operation of the 5017 via the IEEE-488 and RS232 interface in
remotely controlled measuring systems.
This instrument supports both interface types: IEEE-488 and RS232
5.1 Configuration
Some manual configurations must be made to enable operation of the 5017 via one of
the two interfaces IEEE-488 or RS232.
All necessary settings are made in the menu "Device, Interface".
• Select interface (RS232, IEEE-488)
• Assign device address for IEEE-488
• Set handshake mode for RS232
• Set the command set (standard is ‘5017’)
Select Interface
Select the interface with which the instrument is to be controlled in the menu "Device,
Interface" (see chapter "Manual Operation").
The 5017 is equipped in the standard version with the two most common interfaces
used in measuring systems, namely IEEE-488 and RS232.
Configuring the RS232 Interface
Transmission via the RS232 interface takes place with 8N1 format, i.e. a data word
has 8 bits, no parity bit and one stop bit. The transmission speed is fixed at 9600 Bd.
Handshake Mode
The 5017 permits setting of various handshake modes so that this instrument can
communicate with numerous RS232 control programs. Many programing languages
and the Windows terminal program use XON/XOFF handshake. A special RS232
cable (zero modem cable, see chapter ‘Accessories’ No. 3017) is required for
RTS/CTS handshake, but very fast and reliable data transmission is possible then.
The end of a transmitted or received message is designated with a line feed character
"LF" in RS232 data transmission.
Configuring the IEEE-488 Interface
The device address and the terminator character of the messages (ASCII strings) are
of importance for programing and data transmission in communication between the
control computer and the 5017. The IEEE address can be assigned by the user, but the
terminator is fixed and defined by the 488.2 standard.
Setting the IEEE-488, Device Address
The device address is set via the menu "Device, Interface, IEEE488" (see chapter
"Manual Operation") and can be saved in the power-up status.
The device address set in the factory is 7.
End Detection in the IEEE-488, Message Transmission
When operating with the IEEE488 interface, the standard string terminators are used
for reception and transmission of messages (ASCII strings), namely "LF+EOI". "LF"
stands for "Line Feed" and "EOI" designates an interface line which is set by
hardware control.
Define the Command Set
Different command sets can be selected. In this way the 5017 can replace the DMMs
6047/6048 and 6001/5001/4001 and work with the same software.
Please chapter ‘Compatibility’ for special remarks and restrictions of the
compatibility.
All functions which can be manually controlled via the keyboard can also be remotely
controlled, except for the device address assignment which can only be set via the
keyboard.
As soon as the instrument has received the first command via the interface, the
keyboard is disabled for manual control of the instrument functions. Manual control
via the keyboard is thereafter possible again after pressing the
LOCAL-BUTTON
In remote control mode the designator “Rem" is lit in the right window of the main
display.
The instrument understands up to 30 characters in a command. All characters are
ASCII characters. Several commands can be combined in and executed from a single
string of characters sent as one message (e.g. "VDR5A1"), but some commands must
be sent at the end of a string, as ‘NVxxxxxxxxx’, ‘Cnx’, ‘Slx’, ‘D1...’ and the ‘?commands’.
.
The specific commands for controlling data transmission via the interface are
contained in the manual for the utilized IEEE bus interface and some are specific to
the programing language used.
Any space characters (SPACE, ASCII code 20H) contained in the character string
sent by the computer are ignored.
The instrument can receive commands (operation as LISTENER) and it can also send
device messages concerning its status (operation as TALKER). In this status the
indication "ADR" appears on the very right in the display.
The time when the instrument transmits messages can be defined by the computer.
One possibility is for the computer to address the instrument as TALKER, and then
read-out the device message. The second possibility is to operate the instrument in
SRQ (service request) mode. It then requests service from the computer when a status
change has taken place. Switchover to SRQ mode can be made with a command. The
basic status of the instrument after power-up is without SRQ
5.3 Special Features for the RS232 Interface
The DMM 5017 is directly sending measurement values when opening the RS232
interface. If this is not wanted, the command ‘CN0’ can be send from the PC. Then
the instrument sends only a measurement value, if ‘RD?’ comes from the PC.
The IEEE computer interface has the following capabilities defined by the IEEE-488
standard:
SH 1Handshake source function
AH 1Handshake sink function
T6TALKER function
L3LISTENER function
RL1Remote control
DC1Reset function
DT1Initiate function
SR1Service request function
General IEEE-488.1 Messages
The instrument understands the universal commands DCL, SPE and SPD. The
command DCL (device clear) brings the instrument into its basic state (V dc, 300V).
Of the addressed commands it understands GET, GTL, LLO and SDC.
The commands have the following effects:
DCLDevice ClearSets the instrument to the basic state
SDCSelected Device Clear Sets the instrument to the basic state
GTL Go To Local Terminates remote control status
LLO Local Lock Out The instrument cannot be switched to manual
control via the local button (keyboard lockout)
SPE Serial Poll Enable Prepares for serial polling
SPD Serial Poll Disable Terminates serial polling
GET Group Execute Trigger Initiates a trigger for the addressed devices
UNTUnTalkAddressing cancellation - is not displayed
UNLUnListenAddressing - is not displayed
In addition to the 488.1 commands, the 5017 also understands common commands
according to the IEEE-488.2 standard that can be used with both interfaces RS232
and IEEE-488.
The common commands are transmitted to the 5017 as ASCII character string which
must always start with an asterisk "*".
The following commands are implemented in the 5017:
*CLSClear Status Byte (command)
*ESEStandard Event Status Enable (command)
*ESE? Standard Event Status Enable (query)
*ESR?Standard Event Status Register (query)
*IDN?Identification (query)
*OPCOperation Completed (command)
*OPC?Operation Completed (query)
*RSTReset (command)
*SREService Request Enable (command)
*SRE?Service Request Enable (query)
*STB?Read Status Byte (query) see description
*TST?Self Test (query)
*WAIWait To Continue (command)
*CLS, Clear Status Command
The command "*CLS" resets the status byte and the error queue. The Enable, Event,
ESE and SRE registers are not reset.
The command "*ESE <Number> " sets the contents of the Standard Event Enable
Register (event register mask). The parameters thereby have no effect.
NumberMeaning for the Standard Event Enable Register
0Resets the register
1(Bit 1) Service Request
2(Bit 0) Operation Completed (OPC) is set
4(Bit 2) Query Error (QYE) is set
8(Bit 3) Device Dependent Error (DDE) is set
16(Bit 4) Execution Error (EXE) is set
32(Bit 5) Command Error (CME) is set
64(Bit 6) User Request (URQ) is set
128(Bit 7) Power On (PON) is set
*ESE?Standard Event Status Enable Query
The command "*ESE?" reads out the mask set in the Standard Event Enable
Register.
The reply is a decimal value whose binary meaning is as stated above.
*ESR?Standard Event Status Register Query
The command "*ESR?" reads the current contents of the Standard Event Status
Register. The contents of this register are written directly by the instrument according
to a certain event. After read-out this register is reset to 0.
The command "*IDN?" queries the identification designation of the 5017. Read-out
produces a character string with the following format:
"PREMA GmbH,5017 DIGITAL MULTIMETER,0,<year>-<week>-<Number>"
with <year>=Year of software version
<week>=Week of software version
<Number> =No. of software version
For example:
"PREMA GmbH,5017 DIGITAL MULTIMETER,0,97-10-01"
*OPCOperation Completed Command
The command "*OPC" sets the Operation Completed bit (Bit 0) of the Standard
Event Status Register after all currently running command sequences have been
executed completely.
*OPC?Operation Completed Query
The command "*OPC?" makes the instrument write an ASCII 1 into the output buffer
if all currently running operations have been completed.
*RSTReset Command
The command "*RST" executes a reset of the 5017. The instrument thereby takes the
default setting (*RST). All still running internal operations are aborted, but no
registers are reset.
The command "*SRE <Number>" sets the mask for the Service Request Enable
Register. The individual numbers here have the following meaning:
Decimal valueContents of the Service Request Enable Register
0Resets the register.
1(Bit 0), sets measurement value
2(Bit 1), sets Error message like "Overflow", "Sensor?", "Div/0"
4(Bit 2), sets Error Available (EAV)
16(Bit 4), sets Message Available (MAV).
32(Bit 5), sets Event Summary Bit (ESB).
128(Bit 7), sets button pressed
Bit 3 and 6 are not assigned.
*SRE?Service Request Enable Query
The command "*SRE?" reads the contents of the Service Request Enable Register.
The meaning of the contents of this register is as described above for the *SRE
command.
*STB?Read Status Byte Query
The command "*STB?" reads out the status byte of the 5017. The value of the Status
Byte is always 0, because the measurement value is set back after a new command.
Use SRQ if you want to check when a maeasurement value is available.
Decimal valueMeaning in the status byte register
1(Bit 0), Measurement Value available
2(Bit 1), Error like "Overflow", "Sensor?", "Div/0" occured
4(Bit 2), Error Queue.
16(Bit 4), Message Queue.
32(Bit 5), Event Summary Bit (ESB).
64(Bit 6), Master Summary Status (MSS)/ Request Service (RQS)
128(Bit 7), Button pressed
Bit 3 is not assigned.
To determine exactly what events have taken place, query the corresponding status
registers.For example, if Bit 5 (ESB) is set, the cause can be determined with the
command"*ESR?".
For the IEEE488 interface, setting of Bit 6 activates the SRQ line so that the
controller card in the computer can respond.
*TST?Self Test Query
The command "*TST?" interrogates the result of the power-up self test of the
instrument. The reply is “0“ is the self test was completed without error. If any other
value is obtained, please contact PREMA GmbH.
*WAIWait-to-Continue Command
The command "*WAI" prevents execution of further commands until the operations
of a previous command have been completed.
The instrument must be addressed as LISTENER to prepare it for receiving
commands. The instructions for doing this are contained in the user manual of the
computer manufacturer. The segment ‘ADR’ in the right window of the display is lit
when the instrument has been addressed as LISTENER.
The instrument understands the following commands:
MRMeasuring mode. The measurement reading is selected and appears in the
display of the digital multimeter and in the character string of the TALKER
function.
CRCalculating mode. The calculation result of the selected program appears in
the display of the digital multimeter and in the character string of the
TALKER function.
CxEntry of constants,
Format x: Constant No., Sign, Constant value
x = 0: Constant a, x = 1: Constant b Example: C1+3.45678912E+6
Constants has to be entered in the displayed unit, not in the physical unit.
VDDirect voltage Vdc
VAAlternating voltage Vac
VCAlternating voltage + Direct voltage component Vac + dc
O22-wire resistance measurement Ω2W
O44-wire resistance measurement Ω4W
IDDirect current Idc
IAAlternating current Iac
ICAlternating current + Direct current component Iac + dc
TxIntegration time / Measuring time selection with
x = 020msx = 62 s
x = 140msx = 74 s
x = 2100msx = 810 s
x = 3200msx = 920 s
x = 4400msx = A40 s
x = 51 sx = B100 s
x = Z10ms (only for frequency measurement)
D0(D/zero) Display mode switch-off
D1“text“Display mode switch-on. A text sent after “D1“ is output to the dis
play of the multimeter. The internal display is switched off. The
text sent must be enclosed between quote characters.
F0(F/zero) switches off the additional filter.
F1Switches on the average value filter (Avg. Filter).
F2Switches on the automatic filter (Auto Filter ).
F3Switches on the fast automatic filter (Fast Auto Filter ).
Q0(Q/zero) switches off SRQ mode.
Q1Switches on SRQ mode on:
- every new measurement reading
- error message
- reset
- out of limit
EQ?Query of the Error-Queue
S0(S/zero) start mode off, continuous sequence of measurements on
S1Start mode on; every S1 command starts a measurement
S2Start mode on, start with trigger line or trigger button
L0(L/zero) short format; the multimeter outputs only the first message unit
(measurement data and text messages).
L1Long format; the multimeter outputs both message units (measurement
data/text messages and programing data).
ZO(Zeppelin/Otto) Offset correction on
MxxSelects a scanner channel
with xx = 01 to 80
MPxScanner mode with
x = 1 1-pole, 80 channels
x = 2 2-pole, 40 channels
x = 4 4-pole, 20 channels
NVxxxxxxxxxCalibration, calibration string transfer
After NV the multimeter expects a 9-digit unsigned integer decimal number
as nominal value for the calibration via the interface. A nominal value must
be transmitted alone, i.e. no other command from the table above may be
contained in the same string. The digital multimeter starts the calibration after
transmission of the nominal value.
NV“ppppppp“Entry of the calibration 7-digit PIN number
IxContrast setting with x = 0 .... 9
RD?READ?, reads out the current measurement reading
(esp. used for RS232 interface)
CNxx = 0 Continuous mode off ( esp. used for RS232 interface)
x = 1 Continuous mode on
5.8 Display Mode
In display mode the computer can output text messages to the display of the
instrument irrespective of other functions of the instrument.
Display mode is switched on with D1. The ASCII characters following thereafter are
written to the display. All ASCII characters for which a segment code is defined in
the ASCII segment table are displayed. All other characters produce a blank (dark)
character position. All superfluous characters present after D1 and the output text are
ignored. If D1 "text" is sent together with other commands in the same character
string, it must be the last command in the character chain.
D0 switches display mode off again and the display according to the active operating
mode and function appears.
The digital multimeter can send different length messages to the computer whereby
the desired message length is selected with L0 or L1. The latest measurement reading
is returned if the computer sends the command L0. The status information is not
output in response to L0. In response to L1 the instrument sends the most recent data
including the status information.
5.10 SRQ Mode
If the digital multimeter is not to be continually interrogated by the computer but
instead the digital multimeter is to request service from the computer when a status
change has taken place, SRQ mode (service request) must be switched on with the
command Q1.
A SRQ is sent, for example, when keyboard input has been made, when error
messages appear. Utilization of SRQ mode requires that the connected computer can
recognize a SRQ and reply to it with a serial poll (see computer manual).
5.11 Operation of the Digital Multimeter as TALKER
On request by the computer, the instrument sends a message containing its present
status and the most recent measurement reading. For this purpose the computer must
address the instrument as TALKER. The instructions how to do this are contained in
the manual of the computer manufacturer. The message ‘ADR’ is lit in the right
window of the display when the instrument has been addressed as TALKER.
The transmitted message consists of a character string and a fixed terminator at the
end of each character string enabling the computer to recognize the end of the
transmission. The message consists of two message units. The first unit contains the
data of the most recent measurement reading or calculation result, and the second unit
contains data concerning the programing status. The two message units are
transmitted as complete data record. The string terminator is fixed and defined with
IEEE-488.2 standard as "LF + EOI".
The ASCII (ISO 7 bit) code is used for the transmission.
The length of the second message unit is fixed and always consists of 27 characters
plus the terminator character. The length of the first message unit is 14 characters for
output of measurement readings and calculation results.
Only the first message unit is transmitted when the short string is requested
(command “L0"). The status information (2nd message unit) is not sent in this case.
Description of the Message Record Sent
The following table gives an overview of the possible lengths of the message record
depending on the selected operating mode.
A message record consists of one (short string format) or of two (long string format)
message units, followed by a terminator character. The second message unit is called
the status information.
The numbers in brackets (..) apply for the number of characters in short string format.
The measurement reading or a text message appears in the first message unit.
Text messages are ERROR x, NULL, CAL.
Character positions not required are filled with blanks.
The second message unit (status information) commences at the 14th character.
Sensor?Resistance of the sensor overshoots/undershoots the
defined range
Error 02Div/0Division by zero in a mathematical function
Error 03Br. wiresOpen source line in 4-wire resistance measurement
Error 04Offset too highOffset too large after pressing the zero key (302)
Error 05Cal. ErrorCalibration error (341-343)
Error 07Polarity?for RTD or Ω, sense or source wrong polarity
Error 10not mathematicsNot for mathematics (303)
Error 11not temperatureNot for temperature measurement (304)
Error 12Scanner Mode?Scanner mode unsuitable (305)
Error 13Front Input OnlyOnly at front sockets (e.g. current measurement)
(306)
Error 14invalid PINInvalid PIN number for calibration (307)
Values in brackets (only error message 04 to 14) appear when reading out the error
queue. Error message 01 to 03 are send instead of the measurement value.
The customer can also select a command set which is compatible to the DMM
4001/5001/6001 or to the DMM 6047 / 6048 in the menu ‘Device’, ‘Interface’,
‘Command Set’.
PREMA recommends that the unit be calibrated after one year has elapsed.
Within that year, specification data are guaranteed to be valid.
6.2 PREMA Calibration Service
You can have your unit calibrated by PREMA or by a local calibration lab. Call the
telephone number indicated on the front of the manual, in order to obtain information
about the price and duration of this service. We make every effort to return the unit to
your use as quickly as possible. In addition, when we perform a full calibration, you
receive a factory certificate.
Calibrations with an official certificate can also be obtained from PREMA.
6.3 Necessary Equipment
The following aids should be available to you, in order to be able to carry out a
complete calibration of the unit:
• Multifunction Calibrator for DC Voltage, DC Current, AC Voltage, AC
Current, and Resistance to at least 100M Ω, with a minimum resolution of 6½
digits (e.g. Datron 4800), or
• Voltage Standards (e.g. Fluke 732A, 10V) and Resistance Standards and
• Short-Circuit Terminators (three of them, e.g. PREMA 3016 Short-Circuit
Terminator Set) in order to perform the zero correction .
• Connection cables with gold-plated Banana Plugs (e.g. PREMA 3014 or 3015,
Precision Cable Set)
As an alternative you can also utilize less precise sources with good short-time
stability; the value of the source can be checked with PREMA’s 8½ digit DMM 6048.
You can then enter the DMM 6048’s reading into the 5017 as calibration value.
With this method, even 5½ digit calibrators can be used to calibrate 7½ digit
multimeters.
The calibration of the 5017 can be automated with a computer and a Multifunction
Calibrator.
All measurement functions can be remotely controlled by the computer, through a
special command set (for more information see chapter “Remote Control”).
Calibration can normally be carried out entirely by remote control, without any need to
manually adjust potentiometers or capacitors.
For a complete calibration, the following measurement functions must be calibrated:
DC Voltage300mV, 3V, 30V, 300V, 1000V
AC Voltage200mV, 2V, 20V, 200V, 700V
DC Current200µA, 2mA, 20mA, 200mA, 2A
AC Current200µA, 2mA, 20mA, 200mA, 2A
2-wire Resistance30kΩ, 300kΩ, 3MΩ, 30MΩ
4-wire Resistance300Ω, 3k Ω, 30kΩ, 300kΩ, 3MΩ, 30MΩ
The measurement functions for frequency, period, temperature, and the lower 2-wire
resistance are automatically calibrated through the measurement functions listed above.
All ranges of individual measurement functions must be calibrated separately. In order
to properly set the zero-point, it is very important to carry out an offset correction
prior to calibration on each range of each measurement function.
Even after calibration, an Offset Correction should be carried out on a regular basis, at
least once a month.
The following items must be taken care of before the calibration procedure is started:
1.The calibration environment should be at a stable temperature of at least
18°C (64.4°F), but no more than 28°C (82.4°F). Ideally, the temperature
should be 23 ±1°C (73.4°F). In order to prevent erroneous measurements
due to temperature fluctuations, you can wrap the connectors at the unit in a
heat-insulating cloth (like a dust cloth).
2. There must be a 2-hour warm-up period before the calibration is started.
3.Make certain, that the measurement connectors are set to front operation .
If the connectors are set to rear operation, switch them to front operation, as
described in the chapter “Getting Started.”
5.An offset correction must be carried out for every measurement range of
every measurement function.
If you are working with a multifunction calibrator, the offset correction is
carried out when the unit is already connected to the calibrator, and the
calibrator is set to “Zero” (the calibrator’s zero-point).
It is important, however, that the true unit zero-point be set after calibration,
by using the short-circuit terminators on the 5017 front input connectors.
6.Wherever possible, use shielded cables, as short as possible, and with gold-
plated connectors. In this manner, you can make certain that the
thermoelectric voltage at the measurement connectors is kept as small as
possible.
7.After connecting a cable, or after changing the measurement function or
range, you should wait at least one minute, before the first measurement
value is read.
Calibration can be protected against accidental or incorrect calibrations, through the
use of a rear calibration switch and a special PIN number.
The calibration button is located on the rear panel, and can be pushed with a pointed
object (pen, pencil, paper clip, etc.). This button can be pushed after the calibration
menu has been selected. At the same time, a request to input the PIN number will
appear in the display.
Press KeyDisplay / Action
1.Cal key on the
rear panel
2.MENU-IN KEY2 CONFIGURE..
3.MENU-IN KEY4 Calibration..
4.MENU-IN KEY1 Enter Value..
5.MENU-IN KEYV +100.00000
6.MENU-IN KEY1 Enter Value..
7.ò KEY2 Store Cal.
8.Cal key on the
rear panel
Enter a PIN No. (after delivery: 0000000), the display shows alternating
if this display does not appear press the ñ KEY until it appears
if this display does not appear press the ñ KEY until it appears
Enter the calibration value, close with the MENU-IN KEY
press several times to return to the calibration input menu
with afterwards pressing of the MENU-IN KEY stores durably the
1 PIN:0 000000
"CAL" and the reading with the correct PIN No..
only with the right PIN No..
calibration data
to close the calibration procedure
Note:Item 7 is very important. If you forget to store the user calibration it is
completely deleted after you switch off the instrument. Then only the
factory calibration is valid.
Vac+dc, Iac+dc, Frequency, Period and Temperature Measurement are calibrated
through the measurement functions named above.
The lower resistance ranges are only calibrated in the 4-wire resistance measurement.
Changing the PIN Number
By default, the 7-digit PIN No. is set to 0000000. If you want to change this number
please proceed as follows.
Press KeyDisplay / Action
1. cal key on the rear
panel
2. cal key on the rear
panel
Enter a PIN No. (default: 0000000), with correct PIN No. the display
Table: Offset Correction for Measurement Functions
In order to eliminate thermoelectric voltage and lead resistance, and to correct the
zero-point, an Offset Correction must be carried out for each measurement function.
A correction of the zero-point is possible, when the existing deviation is less than
approx. 0.2% of the range’s full-scale value for DC Voltage measurements, or approx.
5% for all other functions.
If the deviation is greater, the message “Offset too high” is displayed.
Offset values that are too large can be adjusted in the “Offset” Math Program.
Note:To achieve a correct zero-point alignment, a warm-up period of at least two
hours should be observed.
After switching functions and ranges, you should wait for a running period of
at least two measurements before carrying out an offset correction.
To carry out the Offset Correction for DC Voltage measurements, a short-circuit must
be applied to the V-Ω front input connectors (Accessory No. 3016).
After triggering a zero-point correction by pressing the zero key, an Offset
Measurement is carried out for the curren tly set measurement range.
Notice:If calibration is done with a calibrator, the calibrator's offset has to be
corrected for at the 5017 front input correction. T he cables must be
properly connected between calibrator and 5017 and the calibrator set to
Zero, prior to the Offset correction of the 5017. Now perform the 5017
offset correction by pressing the zero key on the front panel.
Important: After calibration is completed and the calibrator removed, another offset
correction must be performed , with a short-circuit, at the 5017 front input
connector as described above.
Calibration of DC Voltage
After selecting the desired measurement range, an exactly known positive or negative
reference voltage source is connected to the input connectors. The voltage can be
between 5% and 100% (preferably between 20% and 100%) of the display range for the
measurement range in question.
If the input voltage is not in this range, an error message is displayed.
The 5017 will now display a value that should correspond to the value of the known
voltage source. If the reference value deviates too much from the measured value, the
measurement range must be recalibrated.
If several measurement ranges are to be calibrated, the process described above is
started again for the next range.
When zeroing two-wire resistance measurement, the V Ω-Hi and VΩ-Lo connectors
should be short-circuited, by connecting a short-circuit terminator to these front input
connectors, instead of the resistance to be measured.
In four-wire resistance measurement, the real offset value is determined, by using two
short-circuit terminators (Accessory No. 3016) to short-circuit the V Ω-Hi and VΩ-Lo
connectors first, and then the two Sense connectors. The Sense and Source connectors
are then connected to each other with a third short-circuit terminator, to accomplish a
four-wire short.
It is important to make certain, that the “shortest” short-circuit is created at the Sense
connectors, to prevent contact resistance or pass-through resistance from being
measured.
Notice:If calibration is done with a calibrator, perform a calibration offset cor
rection as discribed above with DC voltage.
Important: After calibration is completed, the 5017 zero-point must be readjusted
again, with short-circuits, as described above.
Calibration of Resistance
Resistance ranges should be calibrated through four-wire resistance measurement. The
same calibration factors are then used for two-wire resistance measurements.
Only the higher resistance ranges need to be calibrated separately in 2-wire
measurement.
In addition , all of the two-wire resistance ranges can also be calibrated sep arately.
The zero offset correction must be performed with the ZERO key. In addition, chapter
7, ‘Operating Instructions’ should be considered, esp ecially referring to compensation
for measurement cable resistance.
Note:In 2-wire resistance measurement the V-Ω-Hi plug may not be
connected to the Sense-Hi plug.
6.10 Calibration of AC Voltage
An offset correction has to be proceeded for all ranges as described for the DC voltage.
Calibration of AC Voltage measurement is carried out without DC Voltage coupling.
The AC Voltage ranges should be calibrated with a Sine Voltage that has a frequency of
1kHz.
The same calibration factor is transferred for the AC Voltage function with DC
Component.
In all other ways, you can proceed as with DC Voltage calibration.
6.11 Calibration of DC and AC Current
An offset correction should be carried out with open connectors. During AC Current
calibration, only the function for AC Current without DC Component is calibrated.
The reference currents shall consist of DC current for the DC Current function, and of
a 1kHz Sine Current for the AC Current function.
Notice:In the 2A range, the calibration current must not exceed 1A.
6.12 Calibration of Temperature
1. Preparations
a) Warmup-period: The DMM 5017 to be calibrated should have run for at least 1h.
2. TEMP-Function: ZERO Offset Correction
a) Insert a four-wire shorting-bridge at the input of the DMM5017, i.e. shorten the four
DMM 5017 Volt/Ohm-inputs - Sense and Source - HI against LO and both pairs
against each other.
b) On the DMM5017 select 1sec integration time and press the TEMP-button. The
DMM5017 will then display ‘Sensor ?’, because ZERO Ohms as sensor input is not
specified. But performing this sequence of operations corrects for the OHMfunction ZERO-offset, with the OHM-function implemented as fundamental function
for the Temperature-measurement with RTDs. That means here, the DMM5017
display ‘Sensor ?’ is not an error !
c) Press the following buttons in sequence to select the RTD-type (e.g. Pt 100):
Menu/↵ A 3 Device ↵ A 3 Temp Sensor ↵ A Pt 100 ↵ Menu/OUT.
Wait for some 10min for thermal stabilization.
d) On the DMM5017 with the TEMP-function selected perform the ZERO-offset
correction by pressing the following buttons in sequence:
2nd TIME/ZERO
The DMM5017-display will now show: ‘done’.
3. TEMP-Function: Calibration
a) Remove the four-wire shorting-bridge from the DMM5017 input terminals and
connect the RTD of the above selected RTD-type onto which the following
calibration has to be performed.
b) On the DMM5017 press again the TEMP-button: The actual temperature is now
displayed with the EN60751 factory calibration. Wait for another some 10min for
thermal stabilization.
On the DMM5017 activate the calibration mode by pressing the Cal-button on the
rear. The display will now ask for the input of the PIN number (Personal
Identification No.) that saves your data under this secret No.. Enter your PIN here or
simply press the Menu/↵-button without entering any PIN: The DMM5017-display
now starts flashing alternatingly ‘CAL.’ and the actual temperature display with the
EN60751 factory calibration.
c) Press the following buttons in sequence to recalibrate the DMM5017 TEMP-
function:
Menu/↵ A 2 CONFIGURE ↵ A 4 Calibration ↵ A 1 Enter Value ↵ <> now
input the new temperature calibration value here ↵
To ensure the successful recalibration the further flashing DMM5017-display now
shows ‘Cal.’ and the recently entered temperature calibration value.
d) Press the following buttons to permanently save the new temperature calibration
value:
Menu/↵ A 2 CONFIGURE ↵ A 4 Calibration ↵ A 2 Store Cal. ↵
The DMM5017 displays ‘wait...’ until the data recording into the EEPROM has
finished.
Then the DMM5017 starts flashing again still indicating that the calibration mode
has been activated.
e) Press the Cal-button on the rear of the DMM5017 to leave the calibration mode.The
DMM5017 now displays the recalibrated temperature calibration value.
Press the following buttons in sequence to select the recently calibrated RTD, e.g.
Pt100 :
Menu/↵ A 3 DEVICE ↵ A 3 Temp. Sensor ↵ A 6 Cal. Pt100 ↵ Menu/OUT.
Cal. Pt100 is new in this list as the USER calibrated version of a Pt100-Sensor. The
DIN-EN 60751 calibrated version is still available in the menu as
A 3 Pt100 but without the addendum Cal.
6.13 Storing Calibration Values
Storage of calibration values is absolutely necessary to store them durably. Every
calibration step is stored only temporarily, so that the files are deleted if you switch of
the instrument.
If you wish to interrupt a calibration procedure and turn off the unit, you can do so, only
if you store the calibration with the menu "Store Cal." before you switch off power.
Y ou could then continue the procedure the next day for example, from the point where
you left off.
To make use of the high linearity of the measurement process, the input resistance for
voltage measurements up to 3V is set very high (>10GΩ). In this range, the unit allows precise measurements, with a maximum load error of 1ppm, even at measurement objects with an internal resistance of 1kΩ.
In the 30V, 300V, and 1,000V ranges, for example, and with a 100Ω internal resistance in a measurement object with a resolution of 100,000, a corresponding error of
one digit step occurs.
The values of the input resistance in the individual measurement ranges, and the
maximum display ranges, are shown in the following table:
The influence of the source resistance is visualized in the following diagram:
Figure: Influence of source resistance on the measurement unit
R
= Input Resistance of the Multimeter ( 10MΩ or >1GΩ )
i
= Source Resistance of the Measurement Object
R
q
= Voltage of the Measurement Object
U
o
The error, in %, of a measurement, is calculated as follows:
Error(%)
100
=
RR
q
+
qi
Example: R
>= 1GΩ; R q = 10kΩ
i
Error = 0.0001% (1 ppm)
×
R
The error rating, in ppm (parts per million), often used in measurement technology, is
derived from: Error(%) x 10,000.
Series Mode Suppression
One of the main advantages of the integrating measurement process lies in the high
suppression of series AC voltage components (e.g. main line scatter), which are
overlaid on the actual signal voltage. For frequencies, where the measurement time is
an integer multiple of the period length, an infinitely high noise suppression level
theoretically results.
Short-term fluctuations of the mains frequency would lead to measurement errors in
case of fixed measurement times.
That is why, in the 5017 a PLL circuit (Phase Locked Loop) is used to synchronize
the measurement time with the period of the main line frequency. An integer multiple
of the mains period is always contained in the measurement time.
Due to the fully integrating measurement process, the positive and negative halfwaves of line voltage are neutralized. Line scatter can thereby be completely suppressed.
The 5017 achieves a Series Mode Suppression of >100 dB with line frequencies of
50 / 60Hz ± 5%.
Common Mode Suppression
The ability of a measurement device, to display only the desired differential signal
between the “HI” and “LO” inputs, while suppressing an equal voltage on both
clamps against ground, is designated as Common Mode Suppression. In an ideal
system, no errors would be generated, but in real life, scatter capacitances, isolation
resistances, and non-symmetrical resistances convert a part of the common mode
voltage into a series voltage.
Common mode suppression in the 5017 is more than 160dB, with a non-symmetry of
1kOhm in the leads.
Thermal Voltages
One of the most common error sources in DC Voltage measurement in the low signal
range is the thermal voltage produced by thermal EMF.
These thermal voltages occur at the contact points of different metals that are at the
same or different temperature levels.
Diagram: Thermal Voltage sources in a measurement circuit
The sketch shows the possible thermal voltage sources in a measurement circuit,
which can exist at an external connection point (Contact 1/2), but can also occur in
the connectors of the measurement unit.
It is always important to carry out all connections with the same material, or at least to
use materials, that produce very small thermal voltages, when they are put in contact
with each other.
The table below shows the different thermal voltages for diverse material
combinations:
Contact Materialsapprox. Thermal Voltage
Cu - Cu< 0,3µ/°C
Cu - Ag (Silver)0,4µ/°C
Cu - Au (Gold)0,4µ/°C
Cu - Sn (Tin)2-4µ/°C (dep. on composition)
For example, if material 1 consists of a silver lead and material 2 consists of a copper
cable, a connection between contacts 1 and 2 at a temperature difference of just 1°C
already results in a thermoelectric voltage of 400nV. In the smallest voltage range,
with a resolution of 7½ digits (10nV sensitivity), this would result in an error of ± 40
digits.
Noise Effects Through Inductive Interferences
If the measurement leads are located near changing magnetic fields, generated for
example by a nearby high-voltage line, induction will cause an interfering voltage in
series with the measurement voltage.
By using twisted pair measurement leads, inductive interferences by a magnetic field
can be very strongly reduced. One should also take care not to allow the leads to hang
around loosely and move around during measurements, since that can cause error
voltages.
An additional measure for the reduction of noise is to increase the distance to the
magnetic field, or if possible to shield measurements from it.
7-4
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