Sierra INNOVA 215 User Manual
Page 25
IM-215 Rev-A.1 Series Innova-Switch™ Page 25 of 42
AT ACTUAL PROCESS TEMPERATURE AND PRESSURE CONDITIONS
IN GASES AND AT ACTUAL PROCESS TEMPERATURE CONDITIONS IN
LIQUIDS.
See Figures 8.0 and 9.0 for location of potentiometers and LEDS on electronics PCB.
4.3.1
Calibration Procedure for Flow Switches
1.
Remove the instrument enclosure lid by turning ccw.
2.
Apply power to FS4200. Allow 5 minute warm-up.
3.
Ensure that the pipeline is filled with fluid and at no or minimum flow.
4.
Set the trip adjust pot to zero fully counterclockwise (fully ccw).
5.
Adjust the zero adjust pot so that the Red LED just does illuminate. This is a 25 turn pot.
If the Green LED is on, turn the pot ccw. If the Red LED is on, turn the pot clockwise
(cw).
6.
Toggle the zero adjust pot back and forth until the switching point is well defined. Leave
the Red LED illuminated.
7.
Adjust the liquid or gas flow to maximum velocity. Insure that the flow is homogenous,
constant and free of bubbles if a liquid.
**NOTE**
The flow rate (maximum) should be at least 5 fps (liquid) or 500 fps (gas) if possible for
best calibration.
8.
Set the trip adjust pot to 100 (fully cw).
9.
Adjust the span adjust pot so that the Green LED just does illuminate. This is a 25 turn
pot.
If the Green LED is on, turn the pot cw. If the Red LED is on, turn the pot ccw.
10. Toggle the span adjust pot back and forth until the switching point is well defined. Leave
the Green LED illuminated.
11. If the switch is to be used for flow - no flow, set the trip adjust pot to 50 and go to step 14.
(Note: This adjustment can be set for tripping points between 10% and 90% of the span
from no flow to max flow).
12. A more exact flow rate setting may be made by establishing the flow at the desired rate
with a separate flow meter and proceeding to step 13, to establish the trip point.
13. Adjust the trip adjust pot to obtain a trip as exhibited by an LED illumination. If a trip on
decreasing flow is desired set for Red LED illumination. If a trip on increasing flow is
desired set for Green LED illumination.
14. Verify that the switch will reset by returning the actual product flow to the maximum or
minimum flow rates.
5.0
OPERATION AND CALIBRATION OF THE Innova-Switch
™
LS3200 SERIES
SWITCH FOR POINT LEVEL APPLICATIONS
5.1
Pre-Operational Check
The switch is installed and the product level is below sensor level (dry), the