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The Products Section > Special Edition - Two Point Continuous Gas Monitoring System
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In addition to the PLC series of multipoint monitors, generally offered for three or more points, INTERSCAN provides a two point system, configured as an expanded version of our LD Series single point monitor. This two point system, while not equipped with quite the array of automation features as is standard in our PLC-based multipoints, offers the same proven INTERSCAN reliability upon which our customers have come to depend. The LD series two point system is available for all the gases monitored by INTERSCAN.
PLC-based two point systems are also available. Please contact the factory.
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| The system includes: |
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- Two INTERSCAN electrochemical voltametric sensors with dedicated pneumatics
- Two dedicated digital display/controllers. From here, two alarm levels, independently adjustable for each sensor, are set via easy push button operation.
- Alarm relay contacts for each alarm setpoint, at each sample channel
- 4-20 mA output for each sample channel
- Two remote sample point boxes, each provided with the appropriate end-of-line particulate filter, and 50 feet (15.2 meters) of tubing
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| The monitoring system is housed in a NEMA type 12 steel enclosure provided with a window.
By the way, you're not limited to monitoring two points of the same gas. Two different gases can be incorporated into this configuration as well! |
| Options
- Alternative packaging, including Type X or Type Z purged enclosures and RFI resistant enclosures
- Audible alarm
- Visual alarm
- Enclosure heating and cooling
- Loss of flow alarm
- Triple alarm set points
- Loss of power alarm
- Auto zero
- Sensor protection circuit
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Additional Specs
Resolution
| 0-2000 ppm range |
1 ppm |
| 0-1000 ppm range |
1 ppm |
| 0-500 ppm range |
1 ppm |
| 0-200.0 ppm range |
0.1 ppm |
| 0-100.0 ppm range |
0.1 ppm |
| 0-50.0 ppm range |
0.1 ppm |
| 0-20.0 ppm range |
0.1 ppm |
| 0-5.00 ppm range |
0.01 ppm |
| 0-2.00 ppm range |
0.01 ppm |
| 0-1.00 ppm range |
0.01 ppm |
Weight:
70 lb (31.8 kg)
Dimensions:
24" H x 20" W x 8.75" D
(610 x 508x 203 mm),
exclusive of alarm signals and enclosure mounting feet.
Specifications common to all Interscan gas detection instruments |
Ordering Information:
Two Point LD Series Continuous Gas Monitoring Systems
| GAS |
MEASURING
RANGE (ppm) |
MODEL NO. † |
Br2
bromine |
0-20.0
0-5.00 |
LD270-20.0m
LD270-5.00m |
CO
carbon monoxide |
0-2000
0-200.0
0-100.0
0-50.0 |
LD214-2000m
LD214-200.0m
LD214-100.0m
LD214-50.0m |
Cl2
chlorine |
0-20.0
0-5.00 |
LD234-20.0m
LD234-5.00m |
ClO2
chlorine dioxide |
0-20.0
0-5.00
0-2.00
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LD233-20.0m
LD233-5.00m
LD233-2.00m
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C2H4
ethylene |
0-2000
0-200.0
0-20.0
0-5.00 |
LD207-2000m
LD207-200.0m
LD207-20.0m
LD207-5.00m |
EtO
ethylene oxide |
0-50.0
0-20.0
0-5.00 |
LD220-50.0m
LD220-20.0m
LD220-5.00m |
HCHO
formaldehyde |
0-20.0
0-2.00 |
LD216-20.0m
LD216-2.00m |
H2NNH2
CH3NHNH2
(CH3)2NNH2
hydrazine(s) ¶ |
0-20.0
0-2.00 |
LD218-20.0m
LD218-2.00m |
H2
hydrogen |
0-2000
0-500 |
LD202-2000m
LD202-500m |
HBr
hydrogen bromide |
0-20.0
0-5.00
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LD280-20.0m
LD280-5.00m
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HCl
hydrogen chloride |
0-20.0
0-5.00 |
LD236-20.0m
LD236-5.00m |
HCN
hydrogen cyanide |
0-50.0
0-20.0
0-5.00 |
LD228-50.0m
LD228-20.0m
LD228-5.00m |
H2O2
hydrogen peroxide |
0-1000
0-200.0
0-50.0
0-5.00
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LD209-1000m
LD209-200.0m
LD209-50.0m
LD209-5.00m
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H2S
hydrogen sulfide |
0-500
0-200.0
0-20.0
0-1.00 |
LD217-500m
LD217-200.0m
LD217-20.0m
LD217-1.00m |
NO
nitric oxide |
0-2000
0-200.0
0-20.0
0-5.00
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LD254-2000m
LD254-200.0m
LD254-20.0m
LD254-5.00m |
NO2
nitrogen dioxide
Also known as N2O4
nitrogen tetroxide |
0-50.0
0-20.0
0-5.00 |
LD215-50.0m
LD215-20.0m
LD215-5.00m |
O3
ozone |
0-50.0
0-20.0
0-5.00
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LD248-50.0m
LD248-20.0m
LD248-5.00m
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PrO
propylene oxide |
0-50.0
0-20.0
0-5.00 |
LD232-50.0m
LD232-20.0m
LD232-5.00m |
SO2
sulfur dioxide |
0-200.0
0-50.0
0-20.0
0-5.00
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LD224-200.0m
LD224-50.0m
LD224-20.0m
LD224-5.00m
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† These are the new model numbers. Certain other sources may not reflect this system, while the changeover is occurring. If in doubt, specify the gas and the measuring range desired.
¶ There is not a separate analyzer available for each of these compounds, and the sensor does not respond equally to all hydrazine species. The analyzer must be calibrated with the specific hydrazine compound of interest.
Special ranges available on request—The panel meter can be factory programmed to display any desired full scale range, within the measuring capability of the instrument.
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