Service manual

1. GENERAL
1.16 Service Manual BSM-4100
ECG/BP Output
Outputs 100 mmHg/V IBP waveform of the IBP connection cord connected to the multi-parameter 1 socket, 1 mV/V ECG
waveform and heart rate trigger.
Output impedance
ECG: ≤100 Ω
BP: ≤100 Ω
Output-waveform
ECG: ±5.0 V (at 1 mV/V sensitivity)
BP: −0.5 to +3.0 V(at 100 mmHg/V sensitivity)
Heart rate Trigger: Open collector output
Frequency response
ECG: 0.05 to 23 Hz (>−3 dB)
(Differ in ECG display mode setting)
BP: ≥DC to 20 Hz (>−3 dB)
Sensitivity accuracy
ECG: ±5%
BP: ±5% (Exclude offset)
Delay
ECG: Hum filter off: approx. 2 ms
Hum filter on: approx. 10 ms
BP: 20 Hz filter: approx. 30 to 35 ms max
HT: approx. 32 to 64 ms max
Recorder (BSM-4101/4102/4103/4104 monitors only)
Recording method: Thermal array recording
Number of channels: 3 traces (maximum)
Recording width: ≥48 mm
Paper speed: 25, 50 mm/s
Recording paper: FQW-50-3-100
External Output
ZB-800PA/PG/PK, ZS-900PG/PK: Provided
External monitor: Provided
Clock Accuracy
At operating temperature 25°C: about ±2 min 40 s/month maximum
At storage temperature –20 to 60°C: about ±5 min/month maximum
Power Requirement
Line voltage:
BSM-4100A: AC 117 V ±10%
BSM-4100J: AC 100 to 127 V ±10%
BSM-4100K: AC 220 to 240 V ± 10%
DC (NKB-101): 10.8 to 16.0 ±5%
Line frequency:
BSM-4100A: 60 Hz ±2%
BSM-4100J/K: 50 or 60 Hz ±2%
Power consumption: AC: 80 VA maximum
DC: 50 W maximum