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org.bluetooth.characteristic.plx_spot_check_measurement

Last Modified: 2015-07-14 Approved: Yes

Name: PLX Spot-Check Measurement

Type: org.bluetooth.characteristic.plx_spot_check_measurementDownload / View

Assigned Number: 0x2A5E

Summary:

The PLX Spot-check Measurement characteristic, if supported, is used to send Spot-check measurements of SpO2 (Percent oxygen saturation of hemoglobin) and PR (pulse rate). This characteristic is a variable length structure containing the Flags field, the SpO2PR-Spot-Check field, and depending on the contents of the Flags field, the Timestamp field, the Measurement Status field, the Device and Sensor Status field, and/or the Pulse Amplitude Index field.

Value Fields

Names Field Requirement Format Minimum Value Maximum Value Additional Information
Flags
Information:
These flags define which data fields are present in the Characteristic value
Mandatory
8bit N/A N/A
Bit Field
Bit Size Name
Definition
Key Value Requires
0 1 Timestamp field is present
0 False
1 True C1
1 1 Measurement Status Field Present
0 False
1 True C2
2 1 Device and Sensor Status Field Present
0 False
1 True C3
3 1 Pulse Amplitude Index field is present
0 False
1 True C4
4 1 Device Clock is Not Set
0 False
1 True
5 3 Reserved for future use
SpO2PR-Spot-Check - SpO2
Information:
Unit is percentage with a resolution of 1
Unit:
org.bluetooth.unit.percentage
Exponent: Decimal, 0
Mandatory
SFLOAT N/A N/A None
SpO2PR-Spot-Check - PR
Information:
Unit is beats per minute with a resolution of 1
Unit:
org.bluetooth.unit.period.beats_per_minute
Exponent: Decimal, 0
Mandatory
SFLOAT N/A N/A None
Timestamp
Information:
Unit is smallest unit in seconds with a resolution of 1
C1
org.bluetooth.characteristic.date_time N/A N/A None
Measurement Status
C2
16bit N/A N/A
Bit Field
Bit Size Name
Definition
Key Value
5 1 Measurement Ongoing
0 False
1 True
6 1 Early Estimated Data
0 False
1 True
7 1 Validated Data
0 False
1 True
8 1 Fully Qualified Data
0 False
1 True
9 1 Data from Measurement Storage
0 False
1 True
10 1 Data for Demonstration
0 False
1 True
11 1 Data for Testing
0 False
1 True
12 1 Calibration Ongoing
0 False
1 True
13 1 Measurement Unavailable
0 False
1 True
14 1 Questionable Measurement Detected
0 False
1 True
15 1 Invalid Measurement Detected
0 False
1 True
0 5 Reserved for future use
Device and Sensor Status
C3
24bit N/A N/A
Bit Field
Bit Size Name
Definition
Key Value
0 1 Extended Display Update Ongoing
0 False
1 True
1 1 Equipment Malfunction Detected
0 False
1 True
2 1 Signal Processing Irregularity Detected
0 False
1 True
3 1 Inadequite Signal Detected
0 False
1 True
4 1 Poor Signal Detected
0 False
1 True
5 1 Low Perfusion Detected
0 False
1 True
6 1 Erratic Signal Detected
0 False
1 True
7 1 Nonpulsatile Signal Detected
0 False
1 True
8 1 Questionable Pulse Detected
0 False
1 True
9 1 Signal Analysis Ongoing
0 False
1 True
10 1 Sensor Interface Detected
0 False
1 True
11 1 Sensor Unconnected to User
0 False
1 True
12 1 Unknown Sensor Connected
0 False
1 True
13 1 Sensor Displaced
0 False
1 True
14 1 Sensor Malfunctioning
0 False
1 True
15 1 Sensor Disconnected
0 False
1 True
16 8 Reserved for future use
Pulse Amplitude Index
Information:
Unit is percentage with a resolution of 1
Unit:
org.bluetooth.unit.percentage
Exponent: Decimal, 0
C4
SFLOAT N/A N/A None