USER INSTRUCTION MANUAL
Page 46 of 49 ENGLISH
ECG-1 Input & ECG-2 Input
These are 6.5mm phone jack inputs for high level ECG. Input voltage range is ±1.0 Volts with an input
impedance of 47kOhms, so source impedance should be less than 4.7 K.
Sync-1 Output
This port delivers a CMOS logic (positive 5V) logic 200 ms logical pulse at various times during
stimulation.
Auxiliary Port
This port allows connection to Stimulus Multiplexer Box, MP3086.
13.3 Hardware Error Messages on the EPS320 Stimulus Generator
Unit
Hardware errors appear on the 7-segment LED displays labelled 'Pace Interval' and 'Current' and
indicate operational failures concerning the Stimulus Generator Unit.
Message
Name
C,P,U,_,E,r,r
CPU Error
CPU self test failure. Contact distributor
P,O,r,_ ,E,r,r
POR
Error
Hardware watchdog self test failed Contact distributor
b,u,t,n ,E,r,r
Button
Error
One of the front panel buttons/keys
are stuck in the ON position.
Contact distributor
S,O,F,t,x,x,x
Software
Error
where xxx is any 3-digit number.
Software execution miss-flow trap
number.
Contact Distributor
_,I,N,t
Interrupt
Error
Error in firmware program flow. Contact distributor
b,A,t,t ,E,r,r
Battery
Error
Battery has become depleted Reconnect external power and press
Backup Enable button.
b,A,t,t , ,L,O
Battery
Low
Backup Battery < 8.6V during self
test.
You may continue to use the
Stimulator. The internal battery will
charge during use.
E,b,a,t,E,r,r
Emerg.
Batt Error
Emergency Battery self test failed. Contact the Distributor, or your
biomedical engineering department to
replace battery..
t,E,S,t ,E,r,r
Test Error Self Test failure of stimulus
generating or safety circuits.
Contact distributor
r,A,t,E ,E,r,r
Rate Error
High Stim Rate detected. Unit has
detected apparently unintended
two pulses less than 300 ms apart.
This may be due to noise on the
Stimulator output (e.g. RF ablation
voltage) or the communication
cable.
Disconnect Stimulator from the
patient. Check that communication
cable between PC and Stimulus
Generator Unit is secure and remove
any interference from the Stimulator
outputs. Reset Stimulus Generator
Unit by pressing 'Backup Enable'. If
error persists contact distributor.
_,d,c,_,E,r,r
DC Error DC Output detected. This may be
due to output channel failure or
noise on Stimulator output (e.g. RF
Disconnect Stimulator from the
patient. Remove any interference
from the Stimulator outputs. Reset