Arrow AutoCAT 2 Series Operating Manual page 204

1 0 . M a i n t e n a n c e a n d S e r v i c e
1 0 . 1 : R o u t i n e M a i n t e n a n c e P r o c e d u r e s
3. Strip chart recorder:
• Check to make sure that there is a full roll of recorder paper.
If you are unsure how to do this, refer to the instructions for recorder paper
installation in this chapter. If there is less than a full roll, install a new roll of
recorder paper.
• Press the ON/OFF control key in the RECORDER section of the keypad and
allow the strip chart recorder to print for a few seconds, then press ON/OFF
control key again to stop printing.
• Observe the recorder strip. The correct date and time should be printed.
If the date and time are incorrect, refer to CLOCK SET multi-function key
description in Section 3.3 for instructions for correcting the date and time (this
should be necessary only at Daylight Savings Time and on leap years).
4. Observe the helium supply reading on the LCD. It should read at least 100psi.
If the display shows "HE 100psi" or less, see the instructions in this chapter to
replace the helium tank.
5. Check for helium leaks:
• Observe the helium supply reading on the LCD. Note any rapid pressure drops
or variations.
• Remove and replace the helium tank according to the instructions in this
chapter. The helium supply reading should rise rapidly, then remain steady.
• Observe the helium supply reading on the LCD again. Note any rapid pressure
drops or variations.
If you note any pressure variations after reinserting the helium tank, call your
Arrow International Field Service Representative for assistance. (see section 2.1)
6. Select the INTERNAL trigger mode:
• Select Operator Mode. Press Trigger.
• Press the INT control key in the MULTIFUNCTION section of the keypad twice.
• Observe the following warning message on the LCD above the ECG trace:
"INTERNAL"
If the internal rate display does not show 80, set the rate to 80 using the UP and
DOWN arrows in the multi-function keys.
Operational Checkout
10-4