Calibration Software PTC04
User Manual
US E R M A N UA L
CALIBRATION
S O F T WA R E
P TC 0 4 P ROG RA M ME R
Introduction
In this document you’ll find
a description of:
The Calibration Setup.
How to proceed with the calibration
check.
What if the calibration check fails?
How does the calibration work?
What do we calibrate?
Figure 1: PTC04-DB-Calib.
User manual calibration software PTC04
UI_0PTC04AAMLX UI Rev. 1.35 or higher
Page 1 of 17
December 13
Calibration Software PTC04
User Manual
Contents:
Introduction
Calibration Setup
Requirements
Connections
RS232 settings
Check Calibration of the programmer
Calibration check
Before starting the calibration check
Manual voltmeter
The calibration check
There are three possible outcomes
What if the Calibration check failed
Measurement failed
Large deviation
Loggings
Calibration details
How does the calibration work?
ADC
DAC
What do we calibrate?
Disclaimer
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User manual calibration software PTC04
UI_0PTC04AAMLX UI Rev. 1.35 or higher
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Calibration Software PTC04
User Manual
Calibration Setup
Requirements
For the calibration test you need:
A high accuracy voltmeter;
A PTC04 calibration board (PTC04-DB-Calib
Supporting daughter board for calibration of
PTC04 programmer).
The software has an automatic calibration feature. For
this you need a Keithley 2000 or an Agilent (HP)
34401A multimeter. The Agilent 34401A multimeter is
supported in the PTC04 User Interface revision 1.35
or higher.
If you use the automatic calibration feature, all
channels will be calibrated with the multimeter as
reference meter.
If a manual approach is used, only the first sensing
line is calibrated with the external reference meter.
For all the other channels the first sensing line will be
used as reference.
Figure 2: Connections
Computer
Connections
1. Replace the daughter board of the PTC04 with the
calibration board:
Remove the cover of the PTC-04;
Remove the PTC04 Daughter Board of the MLX device;
Plug in the PTC04 Calibration Board;
2. Connect the reference voltmeter to the BNC connector
or
4mm PCB Plugs (Both connections are in parallel);
3. Connect the RS232 or USB cable to the PTC04 and the PC;
4. Connect the RS232 of the multimeter to the PC;
5. Connect the power supply of the PTC04.
RS232 or USB
RS232
PTC04
PTC04-DB-
Calibration
MultiMeter
BNC or
4mm PCB Plugs
Figure 3: PC Connections
User manual calibration software PTC04
UI_0PTC04AAMLX UI Rev. 1.35 or higher
Agilent or Keithley
Multimeter
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Calibration Software PTC04
User Manual
RS232 settings
The RS232 communication of the multimeter has to be configured as follows:
Keithley 2000 multimeter
BAUD:
FLOW:
TX TERM:
19.2 K
NONE
CR
Agilent (HP) 34401A multimeter
BAUD:
PARITY:
LANGUAGE:
9600
EVEN: 7BITS
SCPI
OR
BAUD:
PARITY:
LANGUAGE:
4800
NONE: 8BITS
SCPI
For configuration instructions, please consult the user’s manual of your multimeter.
All other settings are set by the software via RS232 commands.
Check Calibration of the programmer
Now your PTC programmer is connected and you can
start-up the MPT software.
When the software is started, double click on
PTC-04
in the UI modules list
or select from the menu “Tools
Search devices
All”
Figure 4: Melexis Programmable Toolbox.
User manual calibration software PTC04
UI_0PTC04AAMLX UI Rev. 1.35 or higher
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Calibration Software PTC04
User Manual
The software will search for all available devices. When a PTC programmer is found it will be initialized.
Otherwise the software will display a notification that no PTC devices have been found and will enter the
disconnected state.
If the connection failed, check the serial cable
and power connection or change the settings if
you have connected the programmer to a
different serial port.
To open the Calibration test module, press the
button
Calibrate
on the PTC04 User Interface.
Figure 5: User Interface PTC-04.
Calibration check
This module of the PTC-04 User Interface is used to verify if the calibration parameters of the programmer
are within tolerance. The software will check the power drivers (DAC) and the voltmeter (ADC), and
compare its results with the calibration parameters. If the calibration parameters are out of tolerance, they
can
be corrected.
Before starting the calibration check
It is advised to leave the programmer powered up for minimum 30 to 60 minutes before starting
the calibration. For the accuracy of the calibration, it is important that the programmer is at
operating temperature.
Very important:
do not connect any load on the connectors of the calibration board during the
calibration check. Any additional load will corrupt the calibration parameters and lead to an
unusable set-up. If this should happen, restart the calibrate check without a load connected to the
programmer.
If you have a Keithley 2000 or an Agilent (HP) 34401A Multimeter, select the correct multimeter
from the selection box
(1)
before you start the calibration check. The multimeter has to be
connected to the PC used for the calibration check. The default COM-port for the multimeter is
COM2. One can change the selected COM-port in the “COM port #” Edit-box
(2).
User manual calibration software PTC04
UI_0PTC04AAMLX UI Rev. 1.35 or higher
Page 5 of 17
December 13
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