Specifications

Copyright 2014 Carl Bright Inc. All Rights Reserved
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The descriptions of the data packets are as follows.
A. Main Bloodhound Packet
The main data packet starts with an asterisk followed by the data fields separated by commas, and then the
packet is ended with a carriage return and line feed. All data output is ASCII text and can be seen using a
terminal program such as HyperTerminal. This packet is used by the gas charting software.
The Bloodhound packet fields are broken down in the following chart.
Field Description Type Value / Range
1 Header, holds SN/Job # String Serial Number Underscore Job Number
2 Date String YYYY/MM/DD Year Month Day separated by a “/”
3 Time String HH:MM:SS 24 hour Minute Second separated by a “:”
4 Drill Depth Float Depth in feet up to 99999.9
5 Gas Units Float Gas units from 0 to 10000.0
6 O2 Percent Float 0.0 to 100.0
7 CO2 Percent Float 0.0 to 100.0
8 Attenuation Float 0.0 to 200
9 Internal Temp Float -120.0 to +200.0
10 Drill Rate Min/Ft Float 0.0 to 500.0
11 Drill Rate Ft/Hour Float 0.0 to 1000.0
12 Sample Flow Rate Float 0.0 to 400. LPH
13 Sample Vac Pressure Float +120.0 to –800.00 mmHg
14 Power Supply Volts Float 0.0 to 24.0 VDC
15 Pri Methane DET VDC Float 0.00000 to 4.09600 VDC
16 Sec Methane DET VDC Float 0.00000 to 4.09600 VDC
17 Chromatograph Test # UInt 0 to 65536
18 Chromatograph VDC Float 0.00000 to 8.2000 VDC
19 H2S DET VDC Float 0.00000 to 4.40000 VDC
20 H2S PPM Float 0.00 to 500.00
21 ERROR NUM String Error number (s) separated by spaces
22 Sample Motor % Power UInt 0 – 200
23 RSSI Percent UInt 0 – 100
24 AC voltage Float 0.0 – 300.0
25 AC Freq Float 0.0 – 200.0 Hz
26 Amps through DC port Float -15.0 to 15.0
27 HRM module temp Float -40 to 200.0
28 Chromatograph Press Float 1500.0 to –1500.00 mmHg
29 Packet number ULong 0 to 4,000,000,000
30 C1 Gas Units Float 0.00 to 10000.00
31 C2 Gas Units Float 0.00 to 10000.00
32 C3 Gas Units Float 0.00 to 10000.00
33 IC4 Gas Units Float 0.00 to 10000.00
34 NC4 Gas Units Float 0.00 to 10000.00
35 Exhaust Pressure Float -200 to +800 (mmHg)
36 Column Temperature Float 0.00 to 500.00
37 Lag Depth Float 0 - 40000.0
38 HOBBS use in hours Long 0 - 2,000,000,000
39 Iso Pentane Float 0.00 - 10000.00
40 Normal Pentane Float 0.00 - 10000.00
41 8 Bit Checksum Byte 0 – 255
NOTES:
1> The packet number always increments by one as packets are sent. Packet numbers will roll over if greater
then 4 billion, or if greater than 2 billion and the job number is changed.
2> Chromatograph test number will roll over at 65536