Tandem T:Slim X2 User Manual page 287

Medium Basal Rate Delivery Performance (2.0 U/hr)
Basal Duration
(Number of Units Delivered with 2 U/hr Setting
Amount Delivered
[min, max]
High Basal Rate Delivery Performance (15 U/hr)
Basal Duration
(Number of Units Delivered with 15 U/hr Setting
Amount Delivered
[min, max]
Bolus Delivery
To assess bolus delivery accuracy, thirty-two t:slim X2 pumps were tested by delivering consecutive low, medium, and high bolus
volumes (0.05, 2.5, and 25 units). Sixteen of the pumps were new, and sixteen had been aged to simulate 4 years of regular use.
For both aged and unaged pumps, 8 pumps were tested with a new cartridge, and 8 with a cartridge which underwent 2 years of
real time aging. Water was used as a substitute for insulin for this testing. The water was pumped into a container on a scale, and
the weight of the liquid at various times points was used to assess pumping accuracy.
Delivered bolus volumes were compared to the requested bolus volume delivery for minimum, intermediate, and maximum bolus
volumes. The tables below show average, minimum and maximum bolus sizes observed as well as the number of boluses which
were observed to be within the specified range of each target bolus volume.
Customer Technical Support: (877) 801-6901
Chapter 30 – Technical Specifications
1 hour
(2 U)
2.1 U
[2.1, 2.2] [12.0, 12.8]
1 hour
(15 U)
15.4 U
[14.7, 15.7] [86.6, 93.0]
6 hours 12 hours
(12 U) (24 U)
12.4 U 24.3 U
[22.0, 24.9]
6 hours 12 hours
(90 U) (180 U)
90.4 U 181 U
[175.0, 187.0]
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