LM 3189

Laser dust monitor

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BENEFITS

Reliable, robust laser technology
Stable measuring
Large operational range
Requires minimal maintenance
Can be applied in a variety of industries
High sensitivity and high concentration measurement

LASER LIGHT SOURCE

Measuring path up to 20 meters without changing a single component in the system
Excellent beam collimation (narrow and intense laser light beam)
Standard wavelength guarantees long-term accuracy and stability
Large operation range ( 0 ... 90 %)

FEATURES

4 operator selectable measuring ranges
Analogue and digital display
Large operation range ( 0 ... 90 %)
Measures opacity, but displays and signal outputs are optical density
Digital display is scaled to mg/m3
Settable alarm relay limit
0 ... 1 V DC and 4 ... 20 mA current outputs
Easy alignment
Minimum optics (less maintenance)
No moving parts (minimal maintenance)

Range switch position	D-value	Opacity %	Mass scale in mg/m3 on 1 m distance	Mass scale in mg/m³ on 2,5 m distance	Mass scale in mg/m³ on 5 m distance
1	0...0.03	0...6.7	0...24	0...9,6	0...4,8
2	0...0.1	0...20	0...80	0...32	0...16
3	0...0.3	0...50	0...240	0...96	0...48
4	0...1.0	0...90	0...800	0...320	0...160
Option:	0...3.0	0...99	0...2400	0...960	0...480

Mass scale values are evaluated using the following parameters: particle size of avg. 1 μm and particle density 1 kg/dm3

Standard delivery includes:

Transmitter unit L3189
Receiver unit R3189 with 50 mm lens
10 m cable JL 3189
Monitor unit M3189 with 230V/50 Hz VAC input
10 m cable JR 3189
English manual

Standard delivery doesn’t include blower¹, electricity cables² and audit filters³.

¹MIP made blowers can be purchased separately as option
²Electricity cable according local regulation can be used
³MIP made audit filters can be purchased separately as option

TARGETED PURGE AIR FLOW FOR LENS MAINTENANCE Purge air is used to keep the lens clean through creating a buffer between the lens and the stack gases. For the situations where enhanced cleaning is needed, we offer a special flange that guides the air purge to the lens. This construction is easy to disassemble and clean when necessary. It is made of anodized aluminum.
100 MM LENS For longer measuring paths we offer the receiver with a 100 mm lens. The possible measuring path is dependent on stability of the transmitter. However, the realistic measuring path for the standard receiver is up to 5 m. With this option it’s possible to have longer measuring paths. This option is also useful in places where high level vibration presents or on in other way unstable installation site. This receiver can be used to minimize outage time by improving the monitor’s availability. Standard flange is ANSI 4”. This option includes targeted purge air flow to keep lens clean.
INTEGRATED SUN AND RAIN COVER WITH ADAPTER FLANGES In some installations an adapter is needed between dust monitor’s flange and the existing one in the stack. We offer more developed adapter flange which has integrated sun and rain cover. DN50 (only for transmitter), DN65 and ANSI4” are supported. Material options are: stainless steel and anodized aluminum for the flange, stainless steel for the cover.

Product number: lm3189