Calibration Software PTC04
User Manual
Page 3 of 17
REVISION 1.44.01 - 2 MAY 2018
UI_0PTC04AAMLX
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.
IMPORTANT NOTE:
Although the firmware version of the PTC04 has no impact on
the quality of the PTC04 calibration, it is advised to upload the
ptc04_mlx90251_firmware.hex or
ptc04_mlx90316_firmware.hex firmware to the PTC04
before
replacing the daughter board of the PTC04 with the PTC04-DB-
Calibration.
Figure 2: Connections
Because: some firmware versions have a pre-configuration of the relays
on the daughter board that does not match with the relay configuration
of the PTC04-DB-Calibration.
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.
Figure 3: PC Connections
P
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C
0
4
P
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C
0
4
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B
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Computer
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BNC or
4mm PCB Plugs
RS232 or USB
RS232
