User's Manual

Operator’s Manual ZM-520PA/521PA/530PA/531PA 101
Respiration Measurement
Measuring method: Impedance method
Measuring lead: Between R and F
Impedance range: 220 to 2000 Ω
Excitor current: 54 to 93 µAp-p, 48 kHz
Respiration rate measuring accuracy*: ±2 counts/min (at 0 to 150 counts/min)
Respiration rate counting range: 0 to 150 counts/min
* Essential performance of this transmitter
SpO
2
Measurement (ISO 9919: 2005 compliance)
Measuring range: 0 to 100%SpO
2
Declared range: 70 to 100%SpO
2
Minimum display range: 1%SpO
2
Display update cycle: Every 3 seconds
Measuring accuracy (rms)*: Accuracy assurance temperature: 18 to 40ºC
Total accuracy including probe: 80%SpO
2
≤ %SpO
2
≤ 100%SpO
2
: ±2%SpO
2
70%SpO
2
≤ %SpO
2
< 80%SpO
2
: ±3%SpO
2
under 70%SpO
2
: not specified
Accuracy of the transmitter: 80%SpO
2
≤ %SpO
2
≤ 100%SpO
2
: ±1%SpO
2
50%SpO
2
≤ %SpO
2
< 80%SpO
2
: ±2%SpO
2
under 50%SpO
2
: not specified
Pulse rate measuring range: 30 to 300 bpm
Pulse rate display range: 30 to 300 bpm
Pulse rate accuracy (rms)*: ±3% ±1 bpm
* Essential performance of this transmitter
NOTE
• The SpO
2
measuring accuracy was tested using the TL-201T, TL-260T, TL-271T and
TL-631T SpO
2
probes. The testing was performed during induced hypoxia on healthy
volunteers (Ethnicity: 10 Caucasians, 2 Africans, 1 Asian and 3 Indians), (Skin: 8 light,
4 medium, 4 dark), (Age: 21 to 34), (5 women and 11 men) under the condition of no
motion. Arterial blood was sampled and measured by a CO-oximeter. The difference
between SpO
2
measured by the SpO
2
probe and functional SaO
2
measured by a
CO-oximeter was calculated using the root-mean-square (rms) method according
to ISO 9919: 2005. This measurement accuracy figure represents 2/3 of all test
measurements.
• A pulse oximeter tester that generates simulated signals can be used to check the
difference from the design specification, but it cannot be used as a replacement for
human signals for testing accuracy.
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