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The firmware for the 1730 series transmitters is programmed directly into the microprocessor during
manufacture. It can be upgraded to a newer version using the 'firmware update socket' on the main PCB.
If an upgrade is to be made to the software it will be supplied in a 32 pin EEPROM IC type 29F010B. To do
the upgrade, use the following steps:
1. Turn the power off to the transmitter using the power switch on the board
2. Remove the hose from the reference air pump (if fitted)
3. Unplug the reference air DC power lead (if fitted)
4. Undo the two M4 screws at the top and bottom of the main shield
5. Remove the earth screw from the main shield on the right hand side of the cabinet
6. Lift out the main shield around the cable glands
7. If the socket has the quick release ejectors, fold out the two wings of the blue socket labelled
"FIRMWARE UPGRADE SOCKET". Plug the 29F010B into the socket.
WARNING: Be very careful not to bend any of the pins of the EEPROM. If the EEPROM does not have all
the pins correctly plugged into the socket during upgrade the EEPROM may be damaged and the upgrade
process will not work.
Note also the direction of the EEROM. Pin 1 is identified by a small dot on the EEPROM. This dot MUST be
oriented in the top right hand corner of the socket as indicated by the arrow on the board and the diagram.
8. While the power is still turned OFF, press and hold the D
Turn on the analyser holding down the two buttons.
9. If the message "Invalid EEPROM, Unable to Upgrade" is displayed, turn the power off again and
check the pins of the EEROM and that it was in the correct direction.
10. If the display looks like the following image, press the D
Model and firmware
version of the upgrade
EEPROM
Press DISPLAY UP key to
upgrade to the new
firmware version
NOTE: While the firmware is being upgraded it is essential that the power is not
turned off otherwise the programme will be corrupted and will not be recoverable.
August 2018
1732 Oxygen Transmitter
12. S
1732 Ver. 1.29
Upgrade Firmware?
Model 1732
New Version: 1.29
Upgrade
Cancel
OFTWARE
Pin 1 of the EEROM
and the A
ISPLAY
LARM
button to load the upgrade software
ISPLAY
Press ALARM UP key to
cancel the update and
continue running the current
firmware version
U
PGRADES
buttons.
L
OG
Technical Manual
59
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