Saecg Patient Module Specifications - HP PageWriter XL M1705B Service Manual

Table 1-3. SAECG Patient Module Specifications
Parameter Specification
Resolution
1.22 /IV after processing in high-resolution mode
Input impedance
Gain accuracy
5 /IV after processing in standard mode
25 MR @ 10 Hz, typically 1OOMfi @ DC
&2% of input signal
Input bias ] 40 nA or less for electrode wire input, less than 500 nA for Right Leg
I
Common mode rejection 120 dB or greater with AAMI test load
Patient isolation risk currents
I,--
10 ItA RMS or less @ 240 V AC 50 Hz, or 120 V AC 60 Hz
System recovery 5 seconds after 400 joule discharge, no damage
I
Crosstalk rejection I 50 dB or greater with 10 mV p-p on other channels in standarcl mode
I
Calibration signal
1 mV f2% after processing
Sample rate
I
8 kHz
DC offset tolerance
355 mV
Table 1-4. ECG to Paper Specifications
Paranwter
Frequency response
Auto ECG
Manual ECG
SAECG
power line
ECG resolution on paper
voltage axis
time axis
Swxificatiolk
3 dB down at (user selectable): 0.05-150 Hz, 0.15-150 Hz, 0.5-150 Hz,
0.05-100 Hz, 0.15-100 IIz, or 0.5-100 Ilz, 0.15-40 Hz, 0.5-40 Hz
3 dB down at (user selectable): 0.05-40 Hz, 0.05-150 Hz, 0.5-40 Hz, 0.5-100
Hz, 0.05-100 Hz
3 dB down at (user selectable): 25-300 IIz, 40-300 Hz, SO-300 Hz
115 dB rejection at 50 or 60 11s with less than 300 mV DC offset
200 dots/in (8 dok/mm)
500 dots/in (20 dots/mm) at 25 mm/s and slower
250 dots/in (10 dots/mm) at 50 mm/s
1-6 Introduction