ORDERING INFORMATION
MODEL NO.
DESCRIPTION
PART NUMBERS
CUB4LP
Reflective LCD Loop Powered Process Indicator
CUB4LP00
Red Backlit LCD Loop Powered Process Indicator
Positive Image Transflective LCD
*CUB4LP40
CUB4CL
Yel/Grn Backlit LCD External Powered Process
Indicator Negative Image Transmissive LCD
CUB4CL10
Red Backlit LCD External Powered Process
Indicator Negative Image Transmissive LCD
CUB4CL20
Yel/Grn Backlit LCD External Powered Process
Indicator Positive Image Transflective LCD
CUB4CL30
Red Backlit LCD External Powered Process
Indicator Positive Image Transflective LCD
CUB4CL40
MLPS
Micro Line/Sensor Power Supply
(Non-hazardous use only)
MLPS1000
*Backlight intensity will vary depending on signal level.
CALIBRATING THE DISPLAY
Calibrating the CUB4LP/CL requires either an accurate adjustable constant
current supply or the CUB4LP/CL can be installed and scaled with the process
sensor connected to the CUB4LP/CL. To calibrate the unit, proceed as follows.
1. Set DIP switching for the desired current range.
2. Select the desired decimal point position.
3. Apply the minimum input signal to the CUB4LP/CL and adjust the COARSE
OFFSET to display the approximate desired minimum value.
4. Apply the maximum input signal to the CUB4LP/CL and adjust the COARSE
SPAN to display the approximate desired maximum value.
5. Repeat steps 3 and 4 until the minimum and maximum values are within the
desired values.
6. Apply the minimum input signal to the CUB4LP/CL and adjust the FINE
OFFSET to display the exact desired minimum value.
7. Apply the maximum input signal to the CUB4LP/CL and adjust the FINE
SPAN to display the exact desired maximum value.
8. Apply the minimum input signal and verify that the display indicates
correctly.
9. Apply the maximum input signal and verify that the display indicates
correctly.
10. Repeat Steps 6 through 9 until display reads exact.
Note: The CUB4LP/CL display is factory calibrated to indicate 0.0 to 100.0
with an input of 4 to 20 mA at approximately 25°C.
BLOCK DIAGRAM
PROCESS
CIRCUITR
Y
S4
S3
S2
SIG-
SIG+
+VDC
COM
S1
8.25
Ω
12.7Ω
COARSE
SPAN
GND
1
2
3
4
BACKLIGHT
FINE
OFFSET
OFFSET
COARSE
FINE
SPAN
-V
+V
0.1
µ
f
50 VDC
(CL ONLY)
(CL ONLY)
Connection for
CUB4LP40
DECIMAL POINT POSITION SELECTION
The decimal point position is DIP switch selectable for one of three locations.
The CUB4LP/CL can be set up to read in 10ths, 100ths, or 1000ths. If all the
DIP switches are set to the “OFF” position, no decimal point will appear on the
display. The DIP switches are located at the rear of the unit.
APPLICATION EXAMPLE
Operation of a refinery process required a local display of the position of a
remote pipeline valve. The display would indicate 0 (zero) when the valve was
fully closed with an input signal of 4 mA. When the valve was fully open the
display would indicate 100 with an input signal of 20 mA.
Both the CUB4LP and the CUB4CL meet the necessary requirements.
VALVE
CONTROL
DEVICE
+
+
-
-
CUB4LP
SIG +
COMM
(SIG -)
TROUBLESHOOTING
For further technical assistance, contact technical
support at the appropriate company numbers listed.
Red Lion Controls
Headquarters
20 Willow Springs Circle
York PA 17406
Tel +1 (717) 767-6511
Fax +1 (717) 764-0839
Red Lion Controls
China
Unit 302, XinAn Plaza
Building 13, No.99 Tianzhou Road
ShangHai, P.R. China 200223
Tel +86 21 6113 3688
Fax +86 21 6113 3683
Red Lion Controls
Europe
Softwareweg 9
NL - 3821 BN Amersfoort
Tel +31 (0) 334 723 225
Fax +31 (0) 334 893 793
Red Lion Controls
India
201-B, 2nd Floor, Park Centra
Opp 32 Mile Stone, Sector-30
Gurgaon-122002 Haryana, India
Tel +91 984 487 0503
