Replacing Fuses; Changing Communications Setting; Figure 27. Communication Switch And Fuse - Teledyne WORKHORSE Operation Manual

WorkHorse H-ADCP Operation Manual

Replacing Fuses

PIO Board. There is one fuse on the PIO Board (see Figure 27) that protects the H-ADCP from excessive
incoming power. If this fuse continues to blow, check your input power before applying power again.
To replace the fuse:
1. Turn off the power.
2. Remove the transducer head (see
3. The PIO board fuse is located next to the internal I/O connector. Use a small flat-blade screwdriv-
er to open the fuse housing. Turn the end 180° (counter-clockwise) to open the fuse housing.
4. Gently pull the fuse housing out. Turn the housing to remove the fuse.
5. Check the fuse using an ohmmeter. Replace the fuse if necessary with the correct voltage and am-
perage fuse (Table 2 item 7).
6. Install the transducer head (see
7. Test the system (see

Changing Communications Setting

A switch on the PIO board (see Figure 27) changes the communication settings between RS-232 and RS-
422. Your computer and the H-ADCP must both be set to the same communication setting. Use the RS-
232-to-RS-422 converter if the H-ADCP is using RS-422 communications and your computer only has an
RS-232 COM port.
Housing Assembly
Housing Assembly
Testing the H-ADCP).
Figure 27. Communication Switch and Fuse
EAR-Controlled Technology Subject to Restrictions Contained on the Cover Page.
Removal).
Replacement).
May 2015
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