Specifications

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Page 50

“Fuming” mud which is emitting gases other than normally seen may cause the O2 to

appear to drift as well, when in reality it is reacting to the loss of O

that the fumes have

replaced. Keep in mind where the sample is being taken from.

High Range Gas

reads too high

There are four (4) registers that affect the way the high range automatically adjusts

itself. In adjusting these registers, the user can mimic any type of system currently in

use.

This register sets the low range damping number. This is the number of samples that

is used in order to slow or speed up the response curve of the gas units output. This

also changes the points to which the changeover between the low range and high

range occurs. A larger number will give an overall smaller absolute number on the

high range. A smaller number will give an overall larger number on the high range.

Setting this register higher will make the output more sluggish. Setting it lower will

allow for a faster response. Not the same as averaging. Normally between 5 and 120,

maximum is 120. Factory setting is 5.

This register sets up the way the high range and low range interact. If this register is

set to zero then the IR ranges are not independent and are joined. This means when

the gas level reaches the end of the low range it goes to the high range IR sensor, but

it calculates out the high range sensor level at the low level point. This attaches the

high point of the low range calibration to the low point of the high range calibration to

help calculate the new response curve. Normally 0.

If this register is 1 then the IR sensors are independent from each other. This means

when the gas level reaches the end of the low range it jumps to the high range where

ever it is at on the gas level concentration. This usually shows up as abnormally large

high range gas units. The Bloodhound enters this mode (and cancels damping) when

in calibration mode. Setting this register to 1 will show the calibration points when the

calibration gas is injected. Normally 0.

This is the Attenuation described in detail above. This is a percentage of the calibrated

output - it has the same effect as air dilution. 50 = 50% output, 100 = 100% output, up

to 200 %. Factory setting is 100. A setting of about 30 may result in a similar output to

old hot wire instruments.

Same as Register 30, but for the high range only. Is additive to register 30.

Factory setting = 30.

USB memory stick

not working

Plug it into the Bloodhound upper USB port only; the lower port is not active. When

inserting a USB memory stick, it may take up to 60 seconds for the Bloodhound to

recognize it.

Can see peaks on

the chromatogram,

but they are not being

quantified (especially

at low Total Gas

levels)

Try setting Register 66 (factory setting is 20) down to 10 or 5.

Total Gas Reading is

Noisy

Most likely cause is some kind of Antenna (Bloodhound, cell phone, wireless

router, etc.) too close to BH. Move antennas as far as possible from the BH.

Noise can be induced through Pason Cable or Power cable or Antenna cable or a

combination of these, or through the BH case.

Remove each cable until noise gone. Also try connecting Cavitator power neg (black

screw terminal) to rig chassis ground, making chassis common to rig chassis ground.