Babbitt LS7000-2 User Manual
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BABBITT
INTERNATIONAL, INC.
P.O. Box 70094
Houston, Texas 77270
(713) 467-4438
TABLE OF CONTENTS
Page
1. Description -------------------------------------------------------------- 1
A. General Description ----------------------------------- 1
B. Specifications -------------------------------------------- 1
C. Ordering Information ----------------------------------- 1
2. Theory of Operation -------------------------------------------- 2
3. Installation-------------------------------------------------------------- 2
A. Inspection ----------------------------------------------------- 2
B. Physical Installation -------------------------------------------- 2
C. Removing Electronics -------------------------------------------- 2
D. Typical Applications and Wiring Diagrams ----------------- 3-5
4. Calibration -------------------------------------------------------------- 6
A. Setting S1 and S2 -------------------------------------------- 6
B. Setting Sensitivity Switch ----------------------------------- 6
C. Calibrate the Low Setpoint ----------------------------------- 6
D. Calibrate the High Setpoint -------------------------- 7
5. Maintenance and Troubleshooting -------------------------- 7
6. Warranty -------------------------------------------------------------- 8
1. DESCRIPTION
A. General Description
The LS7000/2 dual point level switch is designed to automatically maintain a level between two points along a
vertically mounted probe. The two setpoints are adjustable over the entire length of the probe.
The LS7000/2 can be used to automatically fill a tank, or automatically pump down a sump.
A single relay, DPDT, 5 amp, is used for control. An on board latching circuit prevents the relay from changing
state until the high or low setpoints are reached.
The basic unit is made up of a solid stainless steel probe attached to an explosion proof housing. Inside the
explosion proof housing are all calibration adjustments and sensing electronics.
Whenever the LS7000/2 is used in electrically conductive materials, a coated probe (not bare steel rod) must be
used.
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, 0.5A @ 125 volts
RF Frequency: Approximately 1.3 MHz
Environmental
Hazardous Area: Class I, Group D, Class II, Group E, F, G
Temperature: Probe: -30° F to 400° F
Electronics: -40° F to 185° F
Pressure: Probe: 1500 psi @ 175° F. Higher ranges available on request.
Construction: Probe: All wetted parts, 316 SS, Teflon and Viton. (A halar coating can be
Specifications subject to change without notice.
C. Ordering Information
LS7000/2 LEVEL SWITCH
applied.)
Electronics: Housed in cast aluminum explosion proof enclosure.
1
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