Electronics International US-8A - Manual (Page 28)

Installation Instructions 12. Instrument Installation
24
Connect all the Circular Connectors to the Ultimate Analyzer in the following manner:
A) Push the two mating connectors together and twist them until they snap into position.
B) Turn the locking ring on the instrument connector clockwise (1 1/2 turns) until it locks into posi-
tion.
13. System Ground Test:
A) Turn the master switch on and look for a near ambient temperature reading on each channel. If the
instrument does not power-up (display a reading), check the power and ground leads (red and black leads)
for an open, loose or poor connection.
If you suspect any channel is not receiving a signal remove the probe from the engine (leaving it connected
to the Extension Cable) and apply a temperature to it. Look for an increase in reading on the display for that
channel. Check the other channels for an increase in reading. You may have connected the probe to the
wrong Extension Cable. If the reading is decreasing, your may have reversed the connectors on the Exten-
sion Cable leads (the yellow wire on the probe must connect to the yellow wire on the Extension Cable).
B) Start the engine and check each channel for a proper reading. On the ground EGT’s will read around
900’F and CHT’s will read around 200’F. If you suspect any channel is not receiving a signal properly, see
step A of the “Troubleshooting” section of this manual.
C) If programming is required, see the Operating Instructions of this manual. The initial factory pro-
grammed settings on each display are as follows:
1. 8 High Limits -------------- 1650’F
2. 8 Low Limits -------------- 0000’F
3. 1 Diff. Limit ---------------- 200’F
4. 1 Shock-Cooling Rate ---- 3 Seconds/’F
5. Scan Rate ------------------- 2 Seconds per Channel
6. Last Channel Scanned ---- 8
7. Analyzer Channels -------- 1-6
Any one of these 40 programmable limits may be changed from the front panel at any time.