GE Medical Systems marquette Dash 2000, Service Manual, Page: 30 / 202

EQUIPMENT OVERVIEW: Performance Specifications
2-8 DASH 2000 Patient Monitor Revision A
2000 412-001
Respiration
Temperature (TEMP)
Invasive Blood
Pressure (BP)
Measurement technique: Impedance variation detection
Range: ±14 Vpk /(330 pF + 20 kOhm) per elec-
trode excitation voltage/impedance
Respiration rate: 1 Ð 200 breaths per minute
Base impedance: 100 to 1000 Ohms at 52.5 kHz
excitation frequency
Detection sensitivity: 0.4 to 10 Ohms variation
Waveform display bandwidth: 0.1 to 1.8 Hz (-3 dB)
Alarms: User-selectable upper and lower
respiration rate limits, and
user-selectable apnea limit
Number of channels: 1
Input specifications:
Probe type: YSI Series 400
Temperature range: 0 ¡C to 45 ¡C (32 ¡F to 113 ¡F)
Resolution: ±0.1 ¡C
Output specifications:
Parameter displayed:
TP
Linearity: <1 % from 30 ¡C to 42 ¡C
Error: (independent of source) ±0.1 ¡C for
YSI series 400 probes
Alarms: User-selectable upper and lower
limits for TP
Number of channels: 1
Transducer sites: Arterial (ART), femoral artery
(FEM), pulmonary artery (PA),
central venous (CVP), right atrial
(RA), left atrial (LA), intracranial
(ICP), and special (SP)
Transducer requirements:
Excitation voltage: ±2.5 Vdc ±0.1 %
Transducer output: 50 µV/V/cmHg
Input specifications:
Range: -25 mmHg to 300 mmHg
Offset: ±150 mmHg
Input impedance:
Common mode: >100 k at 50/50 Hz
Differential: >100 k from dc to 60 Hz
Output specifications:
Gain: 976 ±1 %
Frequency response: dc to 50 Hz (+0/-3 dB)
Gain stability: <±0.1%/¡C, and <±0.1% over any
24 hour period
Zero balance range: ±150 mmHg
Zero balance accuracy: ±1 mmHg
Zero balance drift: ±1 mmHg over 24 hours
Common mode rejection: >60 dB at 60 Hz
Noise: <5 mVp-p from dc to 30 Hz
Accuracy: ±2% or ±1 mmHg, whichever is
greater (exclusive of transducer)