Siemens Pointek CLS300 User guide

Siemens Milltronics Process Instruments Inc.
1954 Technology Drive, P.O. Box 4225
Peterborough, Ontario
K9J 7B1 / Canada
Tel.: [phone]
Fax: [phone]
www.siemens.com/processautomation
AG080910
Pointek CLS300 Capacitance Switch (Standard Electronics Version)
Configuration of CLS300 Standard Models Manufactured After January 26, 2011
Objective: Set up and calibrate the Pointek CLS300 (Standard Electronics Version). This app guide applies to any
models manufactured after January 26, 2011.
Equipment: Pointek CLS300 (Standard Electronics Version) Capacitance Switch
While every effort was made to verify the following information, no warranty of accuracy or usability is expressed or implied.
Overview
This application guide is an addition to the operating instructions. Please review CLS300 (Standard Electronics Version) operating
instructions to ensure that the device is properly mounted.
This application guide provides a basic procedure for setting the switch point for correct operation of the CLS300 (Standard
Electronics Version) in either covered or uncovered states. Please note that the guide applies only to hardware manufact
ured after January 26, 2011 as indicated by a serial number of PBD/B127xxxx or higher. (For example, PBD/C9xxxxxx or
PBD/B128xxxx.)
Included in the guide are the appropriate start up procedures to quickly and effectively set up the Pointek CLS300 (Standard
Electronics Version) capacitance switch for general applications, demanding applications and interface detection. It also contains
instructions for adjusting the setpoint and alarm delay.
For more detailed information, please consult the operating manual (7ML19985JH04).
Adjusting the Setpoint
Before adjusting the setpoint or alarm delay the cover must be removed.
Prior to removing the cover, please ensure that power is removed, and that the application and installation allow for removal of
the cover. (This may not be permitted in some Hazardous Areas.)
Once the cover has been removed, apply power to the unit. The green power LED (L3) will glow indicating that the unit is powered
and operational. If L3 is not on, please consult the Specifications and Troubleshooting sections of the operating instructions.
APPLICATION GUIDE

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APPLICATION GUIDE
Pointek CLS300 Applications
Pointek CLS300 can be set up for three different applications which are described in the table below. Use the calibration
procedure for the application that most closely describes your operation.
Application Material Setup Conditions
General dry solids
low viscosity liquids
sensor uncovered;
min. 100 mm (4") free space all around
Demanding
hygroscopic / wet solids
high viscosity and high conductivity
liquids
sensor immersed then uncovered; but
retaining max. possible material buildup
Interface detection liquid A / liquid B
foam / liquid
immerse sensor in whichever material has
lowest dielectric constant
Calibration for general applications (Failsafe low, no delay)
1. Ensure that the green power LED (L3) is on.
2. Set DIP switches S1 to S5 to OFF (rocker down as shown in the diagram above).
3. Turn the delay potentiometer (P1) fully counter-clockwise.
4. Adjust the material level of the process so that the probe is uncovered with a minimum of 100 mm (4”) free space all
around.
5. If the yellow sensor status LED (L1) is on, proceed to step 6. If L1 is off, turn the trip point potentiometer (P2) counter-
clockwise until it just turns on. If the yellow LED does not turn on set DIP switch S5 to ON and repeat step 5.
P1
P2
trip poin
t
switches
L2
L1 L3
dela
y
output
status
(
red
)
sensor
status
(
y
ellow
)
power
(green)
delay: alarm activation¹
delay: alarm deactivation¹
f
ailsafe/alarm¹
t
est delay settings
sensitivit
y
ROCKER DOWN
O
F
F
↓
¹
W
hen S3 is ON, it inverts the relay function,
and the functionin
g
of S1 and S2.

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APPLICATION GUIDE
6. Slowly turn the trip point potentiometer (P2) clockwise until the yellow sensor status LED (L1) just turns off.
Calibration for demanding applications (Failsafe low, no delay)
1. Ensure that the green power LED (L3) is on.
2. Set DIP switches S1 to S5 to OFF (rocker down as shown in the diagram above).
3. Turn the delay potentiometer (P1) fully counter-clockwise.
4. Adjust the material level of the process so that the sensor is immersed.
5. Adjust the material level of the process so that the sensor is uncovered, but retains as much buildup of material as
possible.
6. If the yellow sensor status LED (L1) is on, proceed to step 7. If L1 is off, turn the trip point potentiometer (P2) counter-
clockwise until it just turns on. If the yellow LED does not turn on set DIP switch S5 to ON and repeat step 6.
7. Slowly turn the trip point potentiometer (P2) clockwise until the yellow sensor status LED (L1) just turns off.
Calibration for interface detection (Failsafe low, no delay)
1. Ensure that the green power LED (L3) is on.
2. Set DIP switches S1 to S5 to OFF (rocker down as shown in the diagram above).
3. Turn the delay potentiometer (P1) fully counter-clockwise.
4. Adjust the material level of the process so that the sensor is covered by the material with the lowest relative dielectric
constant.
5. If the yellow sensor status LED (L1) is on, proceed to step 6. If L1 is off, turn the trip point potentiometer (P2) counter-
clockwise until it just turns on. If the yellow LED does not turn on set DIP switch S5 to ON and repeat step 5.
6. Slowly turn the trip point potentiometer (P2) clockwise until the yellow sensor status LED (L1) just turns off.
Alarm Delay Function
If you want to slow the Pointek CLS300 response, to compensate for turbulence or false readings, set a delay interval using the
delay potentiometer (P1) and set DIP switches S1 and/or S2 to the OFF position to enable the delay for either alarm activation (S1
OFF), alarm de-activation (S2 OFF), or both (S1 and S2 OFF). (Note: This information can usually be found inside the device cover.)

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APPLICATION GUIDE
If an immediate alarm output is critical, disable the delay by setting the appropriate switch (either S1 or S2) to ON. The functioning
of switches S1 and S2 depends on the alarm setting:
S1 - ON disables delay of alarm de-activation (alarm OFF)
High alarm/
overfill protection S2 – ON disables delay of alarm activation (alarm ON)
S1 – ON disables delay of alarm activation (alarm ON)
Low alarm/
dry run protection S2 - ON disables delay of alarm de-activation (alarm OFF)
Testing the Alarm Delay
This test procedure assumes that you have completed one of the calibration processes described previously.
1. Grasp the probe with your hand. The yellow sensor status LED (L1) should turn on immediately. The red output status
LED (L2) should turn on after a delay.
2. Turn the delay potentiometer (P1) clockwise about 1/8 of a turn.
3. Turn DIP switch S4 to the ON position; this will simulate a change in state of the probe (covered/uncovered).
4. L1 (the yellow LED) should turn on immediately, and L2 (the red LED) should turn on after a longer delay than in Step 1.
5. Turn DIP switch S4 to the OFF position.
6. Continue to adjust the delay potentiometer (P1) until you have the desired delay.
Operation
After completing the setup, replace the lid and secure the lid clip. Pointek CLS300 Standard model is now ready to operate.