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51, 52, 53, 54 Series II
Service Manual
8
Table 3. Performance Test Values (K-Type Thermocouple)
Input
Voltage
Equivalent Display Reading limits
Step (mV DC) Temperature
°C °F
1 0.0000 0.0 °C 32.0 °F -0.3 to 0.3 31.5 to 32.5
2 0.9193 23.0 °C 73.4 °F 22.7 to 23.3 72.9 to 73.9
3 -5.7297 -190.0 °C -310.0 °F -189.3 to -190.7 -308.9 to -311.1
4 40.8853 990.0 °C 1814 °F 989.2 to 990.8 1813 to 1815
5 48.8382 1200 °C 2192 °F 1199 to 1201 2190 to 2194
Verification of IR Communications Port (Fluke 53 and 54)
This section explains how to verify the operation of the IR Communications Port (IR
port). Perform the following procedure using a PC and HyperTerminal. The IR port can
also be verified using Flukeview software.
To set up a HyperTerminal file, follow these steps:
1. Connect the IR adapter cable to the DB9 Adapter connector. Connect the other end of
the DB9 Adapter to a COM port of the PC.
2. Place the Fluke 53 or 54 in front of the IR adapter.
3. Open up a HyperTerminal session. Select
Start button, Programs, Accessories,
HyperTerminal.
4. Open up a
New Connection with a name like “Fluke 54 IR Test”.
5. When the
Connect To box appears, select the COM1 or COM2 (the port that the IR
adapter cable is plugged into).
6. Select
Port Settings: 9600 baud rate, 8 data bits, no parity, 1 stop bit, and no flow
control.
7. Under
File, select properties. Verify that the correct port is selected. Click on
Configure. Verify that port settings are correct (the baud rate may need to be
changed to 9600).
8. Select the
Settings tab then click on ASCII Setup. Check the following boxes:
• Echo typed characters locally
• Append line feeds to incoming line ends
• Wrap lines that exceed terminal width
To open a HyperTerminal file to test the IR port, use the following procedure:
1. Under
File, select Save As. Use a file name such as “Fluke 54 IR Test” and then
click on
save.
2. Click on the
phone disconnect icon.
3. Click on
open folder or under File select Open. Double click on Fluke 54 IR Test.
4. Type in "ID" followed by the
Enter key (notice the "ID" is capitalized).
5. The display of the thermometer now shows the thermometer name (Fluke 53-II or
Fluke 54-II), and the units operating software version (e.g. Fluke 54-II, V1.01).