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APPENDIX B - Flow Rate Accuracy
SIGMA Manual Number 41018
Revision AR
Typical of intermediate rate last* Hr, Trumpet Graph
NOTE:
For Hospira calibration the last hour is the 72nd hour. For Baxter calibration the last
hour is the 96th hour.
It is important for the clinician to understand the pharmacological influence of specific drugs based
on concentrations and patient response when used in conjunction with the SIGMA Spectrum.
Pumping mechanisms produce fluctuation in fluid flow by design based on the specific mechanism
type (peristaltic, piston, rotary, etc.), electronic control system and other factors related to the
administration set’s characteristics. Specific flow profiles are helpful in determining the correct clini-
cal application for the infusion pump. Data is presented as requested by the applicable standards and
represents the typical flow rate function of the Spectrum pump for short and long term operation. To
help with the visualization of the flow inconsistencies that are typical of most infusion pumps, the
start-up graphs and trumpet curves are extended to include the minimum rate (.5mL/hr) and inter-
mediate rate (25 mL/hr) for the SIGMA Spectrum.
NOTE:
The SIGMA Spectrum is best classified as a “Volumetric Infusion Pump” as defined by
the applicable standards. Reference IEC 60601-2-24 and AAMI ID26:1998, Medical
electrical equipment – Part 2: Particular requirements for safety of infusion pumps and
controllers.
Trumpet Curve, Last H
our
Set Rate 25 mL/hr
%
-E
r
r
o
r
o
f
F
lo
w
Observation Window (min)