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LS8000 LEVEL SWITCH 

1. DESCRIPTION

A. General Description

The LS8000 is a point level switch that detects the presence or absence of material in a bin, silo, tank or other 
container. 
The basic unit is made up of a solid stainless steel probe attached to an explosion proof housing.  Inside the 
explosion proof housing is a transmitter that is connected to the receiver board by a twisted, shielded pair of 
wires. 
The receiver board may be mounted up to one mile from the probe.  All calibration adjustments and indicators 
are at the receiver.  The receiver also has the relay output and an on board fuse. 
The unit is calibrated in the absence of material and an on board relay at the receiver changes state when 
material is detected. 

B. Specifications 

Electrical 

Power: 

115 VAC (±15%) 50/60 Hz. 2 watts, standard. 
(12 VDC, 24 VDC or 230 VAC optional) 

Output:

2 Form C contacts, DPDT relay, 5 amp resistive 
at 125, 250 VAC; 30 VDC 

Fuse: 

On board, 250 mA @ 125 volts 

Fail Safe:

Selectable high or low level

Time Delay: 

Selectable: ON or OFF delay 
Adjustable: 1/8 sec to 2 hrs. 

RF Frequency:

  

Approximately 1.3 MHz 

Environmental 

Hazardous Area:

 

Transmitter

 Housing

: Class I- Group C, D 

       

Class II- Group E, F, G 

Receiver:  Open printed circuit board can be put in  

Temperature:

   

Pressure:

Construction:

   

enclosure as required by

 

application 

Probe: -30° F to 400° F 
Electronics: -40° F to 185° F 
Probe: 

3/4" NPT 

(Standard) - 

300 psi @ 75° F

       1" NPT (optional) - 1500 psi @ 75° F

Probe: All wetted parts, 316 SS Teflon and Viton. A 
Halar coating can be applied to the probe when 
applicable. 
Transmitter: Housed in cast aluminum explosion  
proof enclosure 
Receiver: Printed circuit board mounted on plastic  
track provided with each unit. 

Specifications subject to change without notice. 

Summary of Contents for LS8000

Page 1: ...MANUAL I IN NS ST TA AL LL LA AT TI IO ON N C CA AL LI IB BR RA AT TI IO ON N T TR RO OU UB BL LE ES SH HO OO OT TI IN NG G W WA AR RR RA AN NT TY Y TABLE OF CONTENTS Page 1 Description 1 BABBITT INTE...

Page 2: ...tallation 2 A Inspection 2 B Physical Installation of Probe 2 C Installing the Receiver 3 D Typical Applications and Wiring Diagrams 4 1 LS8000 Terminal Layout 4 2 Ladder Diagrams 6 4 Calibration 10 A...

Page 3: ...al Power 115 VAC 15 50 60 Hz 2 watts standard 12 VDC 24 VDC or 230 VAC optional Output 2 Form C contacts DPDT relay 5 amp resistive at 125 250 VAC 30 VDC Fuse On board 250 mA 125 volts Fail Safe Selec...

Page 4: ...with probe attached 2 A transmitter module in the explosion proof enclosure 3 The LS8000 R receiver card 4 A plastic snaptrack to mount the receiver card B PHYSICAL INSTALLATION OF TRANSMITTER MODULE...

Page 5: ...commend a 36 top mounted high level probe in storage silos and a 24 in smaller vessels such as use bins CAUTION Always take safety precautions before opening vessels for such inspection c On gravity f...

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Page 12: ...uching the probe The green led indicates relay status and is on when the relay is energized When product comes into contact with the probe the relay is de energized 2 Fail Safe Low FSL means that the...

Page 13: ...o out replace electronics Check shielded cable for proper connection Check shielded cable for shorts or open circuits Unit triggers when material touches probe but will not reset when material recedes...

Page 14: ...ditions or components which have been misused abused damaged by neglect or accident This warranty shall not apply to any components which have been altered or repaired without the prior written consen...

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