Oxygen
Deficiency Monitors
Model 8060, Model 8061 |
| Description |
 |
Matheson's Oxygen
Deficiency Monitors are compact, portable instruments designed
for the continuous monitoring of ambient oxygen levels. A large
LCD digital readout clearly displays the oxygen concentration at
all times. A pulsating audible alarm sounds when the level falls
below 19.5 percent. |
| Two versions are
available. The Model 8061 is equipped with a 16 foot cable on a
spool connecting the instrument to the sensor, making it ideal
for testing manholes, tanks, bilges, silos, etc. The Model 8060
has the sensor at the end of an extendable 3 foot coiled cable.
In both models, the sensor attaches easily to the top of the
instrument for hands-free use. |
| Both the
Model 8060 and 8061 can be used to test the oxygen level in a
confined area prior to entering, or, conveniently worn on the
belt or over the shoulder (both belt loop and shoulder strap are
provided), they serve as a personal monitor anywhere the danger
of oxygen deficiency exists. |
| Principle
of Operation |
 |
The
sensor is a small, leakproof galvanic cell that plugs into a
rugged protective holder. The galvanic cell consists of a noble
metal electrode, a base metal electrode, and an electrolyte in
aqueous solution. A specially designed diaphragm membrane
prevents the evaporation of water from the cell, providing for a
long sensor lifetime and eliminating the need to periodically
replenish the water. |
| A
potential difference exists between the two electrodes. In the
presence of oxygen, current flows from the noble metal electrode
to the base metal electrode: |
| Noble metal: |
O2
+ 2H2O + 4e-
4OH- |
| Base Metal: |
2Pb
2Pb ++ + 4e- |
|
| The output
of the cell is proportional to the oxygen concentration, with a
virtually linear relationship through the entire range of the
instrument. |
| Specifications |
| Detection
Principle: |
Galvanic
cell |
| Power
Source: |
2
x size AA rechargeable NiCad batteries (remote charger also
included) |
| Operating
Time: |
Up
to 20 hours with full charge |
| Recharging
Time: |
14
hours from a fully discharged state |
| Measuring
Range: |
0-40
vol % |
| Alarm: |
Preset
to 19.5% Pulsating audible tone |
| Indication
Accuracy: |
+/-
3% of O2 concentration |
| Response
Time: |
2-4
seconds |
| Temperature
Range: |
0-45°C
(32-113°F) |
| Pressure
Range: |
Up
to 2 atm. |
| Low
Battery Indicator: |
Steady
audible tone |
| Dimensions: |
Model
8060: 4.7H x 2.6W x 1.1D (inches) (120 mm x 66 mm x 29 mm)
Model 8061: 6.7H x 2.6W x 1.1D (inches) (170 mm x 66 mm x 29 mm) |
| Weight: |
Model
8060: 8.8 oz (250g)
Model 8061: 10.6 oz (300g) |
| Expected
Sensor Life: |
18-24
months |
| Warranty: |
1
Year |
| Ordering
Information |
| Model
No |
Description |
| 8060 |
Oxygen
deficiency monitor with 3 foot coiled cable connecting sensor to
instrument, carrying case with belt loop and shoulder strap,
NiCad batteries (2), remote 115VAC charger |
| 8061 |
Same
as Model 8060 with 16 foot non-coiled sensor cable. |
| 8060-220 |
Same
as 8060 with 220VAC charger |
| 8061-220 |
Same
as 8061 with 220VAC charger |
| 8062-01 |
Replacement
sensor for either 8060 or 8061 (hermetically sealed package). |
| 8501 |
Replacement
115VAC charger for either model |
| 8502 |
Replacement
220VAC charger for either model |
|
For more information,
request Matheson Tech-Brief TB-240.
|
|
|
