Specifications

Copyright 2014 Carl Bright Inc. All Rights Reserved
Page 13
K. Geolograph Switch Input
The red and black spring terminal clamps are for the geolograph switch input. On rigs that are not WITS or
WITSML (Wellsite Information Transfer Standard Markup Language) compliant, the most common method to
transmit drilling foot changes is with a switch connected in some manner to the mechanical geolograph. As
more rigs become WITS and WITSML compliant, this should be less common.
L. Sample Gas Inlet
The smaller ¼” hose barb connection on the side is for the sample gas in. Right before this connector, there
should always be a line filter and a water catch canister (dropout jar).
Do not allow liquids to enter into the Bloodhound through this sample gas inlet port.
M. Sample Gas Exhaust
The exhaust is a ½” hose barb connection. This larger size exhaust hose keeps the system from developing
exhaust back pressure, or getting plugged with ice during cold weather. Do not plug the exhaust line or reduce
the internal diameter of the exhaust to anything less than 1/2”. This is because any back pressure will
increase and the system will not operate correctly.
NOTE: Under no circumstances is the exhaust line, at any point, to be physically higher than the Bloodhound
case bottom. Under normal operations, water and water vapor is expelled from the exhaust. If the exhaust
line is higher than the case bottom exhaust port then water cannot exit the exhaust and will eventually flow
back into the system causing damage. Water damage is in no way covered under warranty and is an
additional charge on rental items.
4. KNOB OPERATION AND CONTROL
On the front panel of the Bloodhound Gas Detection System, there is a knob marked “Attenuation” (or
“Adjust”). This function knob is used to access many features of the Bloodhound system. When first turning
the knob, the LCD screen switches to ask the user to select a knob function. Keep rotating the knob to select
from one of the functions. The selections of knob functions are:
GAS UNITS ATTEN – set attenuation (Register 30) O2 SPAN – set O
2
span
COLUMN TEMP – set chromatograph temperature H2S ZERO – set H
2
S zero
GAS UNITS ZERO – set gas units zero H2S SPAN – set H
2
S span
GAS UNITS LOW SPAN – set gas units low span HRM OEMSETUP – sets pans, zeros, and readjusts
GAS UNITS HIGH SPAN – set gas units high span the chromatograph to zero
CO2 ZERO – set CO
2
zero START CG CAL CYCLE – starts calibration cycle
CO2 SPAN – set CO
2
span POWER DOWN – turns off Bloodhound
After Rotating the knob until the desired function is seen, press the green Enter/Mute key. This tells the
Bloodhound that you wish to access the selected function and the LCD will then instruct you further. After
adjusting the instrument to the desired level, press the Enter/Mute key again. The settings are saved and the
Bloodhound resumes normal operations. To exit at any time, either press any of the red buttons, or just wait
60 seconds for the selection to “time-out.”
Notes on the knob function: Be patient and get a feel for the knob adjustment. Some functions have the knob
sensitive to adjustment, and others will seem sluggish. Further, if the user does not change the knob, the
adjustment function will time out after 60 seconds and the Bloodhound will return to normal operations.
A. Gas Units Attenuation
The attenuation setting adjusts the gas readings down or up from 1 percent of the “normal” (that is, non-
adjusted) reading to 200 percent of the “normal” reading. To adjust the attenuation, turn the knob left and right
to adjust the attenuation to the desired level. The adjust level can be selected from 1 to 200 percent.