If you need to perform gas detection at only one point, or have several points that are either widely separated, or would each be better served by a self-contained monitoring system, check out Interscan’s LD or RM Series. These tough, field-proven units are available for Br2, CO, Cl2, ClO2, C2H4, ethylene oxide, HCHO, H2, hydrazine, HBr, HCl, HCN, H2O2, H2S, NO, NO2, O3, peracetic acid, propylene oxide, and SO2

– and use our own patented electrochemical voltametric sensors.

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LD Series

Interscan’s LD Series represents the ultimate in single point continuous gas monitoring systems. Each and every component has been chosen based on years of experience in some of the most demanding environments imaginable. What’s more, the units are easy and inexpensive to maintain.

An impressive array of options allows the specifier to put together a system ideally suited to the application at hand.

Options/Accessories

  • Audible alarm (piezo or vibratory horn)
  • Visual alarm (strobe or rotating beacon)
  • Enclosure heating and cooling
  • Intrinsic safety via Type X, Y, or Z purging
  • Loss of power alarm
  • Loss of sample flow alarm
  • Sensor protection circuit
  • Remote displays
  • Auto zero (included as standard for certain lower measuring ranges)
  • Auto pump shut-off/auto restart (useful in sterilant monitoring applications)

Features

  • 3½ digit LED display
  • Rotameter
  • 0–1 V & 4–20 mA full scale
  • Low and high alarm contacts, continuously adjustable through the full scale measuring range, activating dedicated relays

Additional Specs

Measuring RangeResolution
0–2000 ppm1 ppm
0–1000 ppm1 ppm
0–500 ppm1 ppm
0–200 ppm1 ppm
0–200.0 ppm0.1 ppm
0–100.0 ppm0.1 ppm
0–50.0 ppm0.1 ppm
0–20.0 ppm0.1 ppm
0–5.00 ppm0.01 ppm
0–2.00 ppm0.01 ppm
0–1.00 ppm0.01 ppm
NOTE: Not all measuring ranges are available for all gases. Please refer to specific ordering information, below.

Weight:

22 lb (10.0 kg)

Dimensions:

22″ H x 18″ W x 8.5″ D

(559 x 457 x 216 mm)

Specifications common to all Interscan gas detection instruments


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RM Series

Interscan’s Rack-Mount configured gas analyzers are intended for those applications in which line power operation is desired (allowing continuous operation and the incorporation of heavier-duty alarm signals or alarm contacts), but in which the rigorous NEMA 4X packaging of the LD Series is not required.

Designed to be installed in a standard 19 inch (483 mm) rack or to be used on the bench, their open frame construction and use of standard electrical and pneumatic components allow easy incorporation of the units into a system. Many of the LD Series’ features and options are available.

Options

  • 4–20 mA analog output
  • Alarm contacts
  • Dual alarm set points
  • Loss of sample flow alarm
  • Loss of power alarm
  • Auto zero

Features

  • 3½ digit LED display
  • Integral pump and rotameter
  • 0–100 mV analog output—adjustable
  • Turns-counting potentiometers
  • Wrap-around cover

Additional Specs

Measuring RangeResolution
0–2000 ppm1 ppm
0–1000 ppm1 ppm
0–500 ppm1 ppm
0–200 ppm1 ppm
0–200.0 ppm0.1 ppm
0–100.0 ppm0.1 ppm
0–50.0 ppm0.1 ppm
0–20.0 ppm0.1 ppm
0–5.00 ppm0.01 ppm
0–2.00 ppm0.01 ppm
0–1.00 ppm0.01 ppm
NOTE: Not all measuring ranges are available for all gases. Please refer to specific ordering information, below.

Weight:

8 lb (3.6 kg)

Dimensions:

7″ H x 19″ W x 12″ D

(178 x 483 x 305 mm)

Specifications common to all Interscan gas detection instruments


Ordering Information:

LD Series Continuous Gas Monitoring Systems and RM Series Rack Mount Gas Analyzers

GAS

MEASURING
RANGE (ppm)

LD SERIES
Model No.

RM SERIES
Model No.

Br2
bromine
0–20.0
0–5.00
LD70-20.0m
LD70-5.00m
RM70-20.0m
RM70-5.00m
CO
carbon monoxide
0–2000
0–200.0
0–100.0
0–50.0
LD14-2000m
LD14-200.0m
LD14-100.0m
LD14-50.0m
RM14-2000m
RM14-200.0m
RM14-100.0m
RM14-50.0m
Cl2
chlorine
0–20.0
0–5.00
LD34-20.0m
LD34-5.00m
RM34-20.0m
RM34-5.00m
ClO2
chlorine dioxide
0–20.0
0–5.00
0–2.00
LD33-20.0m
LD33-5.00m
LD33-2.00m
RM33-20.0m
RM33-5.00m
RM33-2.00m
C2H4
ethylene
0–2000
0–200.0
0–20.0
0–5.00
LD07-2000m
LD07-200.0m
LD07-20.0m
LD07-5.00m
RM07-2000m
RM07-200.0m
RM07-20.0m
RM07-5.00m
EtO
ethylene oxide
0–50.0
0–20.0
0–5.00
LD20-50.0m
LD20-20.0m
LD20-5.00m
RM20-50.0m
RM20-20.0m
RM20-5.00m
HCHO
formaldehyde
0–20.0
0–2.00
LD16-20.0m
LD16-2.00m
RM16-20.0m
RM16-2.00m
H2NNH2
CH3NHNH2
(CH3)2NNH2
hydrazine(s) ¶
0–20.0
0–2.00
LD18-20.0m
LD18-2.00m
RM18-20.0m
RM18-2.00m
H2
hydrogen
0–2000
0–500
LD02-2000m
LD02-500m
RM02-2000m
RM02-500m
HBr
hydrogen bromide
0–20.0
0–5.00
LD80-20.0m
LD80-5.00m
RM80-20.0m
RM80-5.00m
HCl
hydrogen chloride
0–20.0
0–5.00
LD36-20.0m
LD36-5.00m
RM36-20.0m
RM36-5.00m
HCN
hydrogen cyanide
0–50.0
0–20.0
0–5.00
LD28-50.0m
LD28-20.0m
LD28-5.00m
RM28-50.00m
RM28-20.0m
RM28-5.00m
H2O2
hydrogen peroxide
0–1000
0–200.0
0–50.0
0–20.0
0–5.00
LD09-1000m
LD09-200m
LD09-50.0m
LD09-20.0m
LD09-5.00m
RM09-1000m
RM09-200m
RM09-50.0m
RM09-20.0m
RM09-5.00m
H2S
hydrogen sulfide
0–500
0–200.0
0–20.0
0–1.00
LD17-500m
LD17-200.0m
LD17-20.0m
LD17-1.00m
RM17-500m
RM17-200.0m
RM17-20.0m
RM17-1.00m
NO
nitric oxide
0–2000
0–200.0
0–20.0
0–5.00
LD54-2000m
LD54-200.0m
LD54-20.0m
LD54-5.00m
RM54-2000m
RM54-200.0m
RM54-20.0m
RM54-5.00m
NO2
nitrogen dioxide

Also known as N2O4
nitrogen tetroxide
0–50.0
0–20.0
0–5.00
LD15-50.0m
LD15-20.0m
LD15-5.00m
RM15-50.0m
RM15-20.0m
RM15-5.0m
O3
ozone
0–50.0
0–20.0
0–5.00
LD48-50.0m
LD48-20.0m
LD48-5.00m
RM48-50.0m
RM48-20.0m
RM48-5.00m
PAA
peracetic acid
Also known as peroxyacetic acid
0.50.0
0–20.0
0–5.00
LD89-50.0m
LD89-20.0m
LD89-5.00m
RM89-50.0m
RM89-20.0m
RM89-5.00m
PrO
propylene oxide
0–50.0
0–20.0
0–5.00
LD32-50.0m
LD32-20.0m
LD32-5.00m
RM32-50.0m
RM32-20.0m
RM32-5.00m
SO2
sulfur dioxide
0–200.0
0–50.0
0–20.0
0–5.00
LD24-200.0m
LD24-50.0m
LD24-20.0m
LD24-5.00m
RM24-200.0m
RM24-50.0m
RM24-20.0m
RM24-5.00m

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.