truflo OBS-LE Series LED Digital Pressure Gauge Instruction Manual
- June 1, 2024
- truflo
Table of Contents
truflo OBS-LE Series LED Digital Pressure Gauge Instruction Manual
Operating Manual
Function of Buttons
| Key Name | Symbol | Descriptions |
|---|---|---|
| Lock / Shift | Press Key for 3 Seconds to Lock Sensor Press to Shift |
Cursor while in Programming Mode
Programming| | Press Key for 3 Seconds to Enter Programming Mode. Press
to Scroll through Menu.Press Key Quickly will allow operator to Scroll through
different Pressure engineering units.
Unlock / Adjust| | Press Key for 3 Seconds to Unlock Sensor Alarm. Press
One (1) Second to change units.
PROGRAMMING MODE OPERATING PROCEDURES
Follow Hand For Programming
Alarm Set point
| Display | Descriptions | Default |
|---|---|---|
| 00.0 | Press Key for 3 Seconds to Enter Programming Mode. | |
| -1- or -2- | Press Key to Program Relay 1 or Relay 2 Press to Save your | |
| Selecting. | ||
| HYS | Press Key for Relay Hysteresis mode (Prevents Relay Chatter) | |
| No or Nc | Press Key to Select normally Open or Normally Closed Pulse | |
| Output. Press Key to Save. | ||
| NPN | Press Key to Select PNP (Sourcing) or NPN (Sinking) Press Key to | |
| Save. |
System Programming Steps
| Display | Descriptions | Default |
|---|---|---|
| HP | Press Key to Change Value of High Relay Set Point. Press to Move | |
| Cursor. Press Key to Save | ||
| LP | Press Key to Change the Value of Low Relay Set-Point. Press Key to | |
| Save | ||
| Load | Press change to Key to Move Cursor. Press Key to Save. | |
| Err | If LP Relay Output is Higher than HP Relay Output than Error (ERR) | |
| will Flash. |
Analog 4-20mA
Plus & Play Design – No Programming
4mA = 0 Psi
20mA = 150 Psi (Refer to wiring Diagram Page-04)
HOW TO ORDER
-
OBS-LE
-
PVC (P) CPVC (C) PP (PP) PVDF (PF)
-
(M) -MNPT ½”
(F)- FNPT ½” -
Body Materia
-
Connection
-
Flanged Available
DIMENSIONS
INSTALLATION
Do not tighten by grasping the case of the gauge as this may cause damage.
-
Before installing a pressure gauge, consideration should be given to temperature, humidity, vibration, pulsation, shock and other climatic and ambient conditions of the service application, and to the possible need for protective attachments and / or special installation requirements.
-
The user shall ensure that the correct gauge has been selected with the correct range and construction.
Example : TVL Series Controller + Display
Use Screw Driver Provided
Method of connecting cables to the clamping connectors
Truflo OBS LED Series 4-20mA Wiring Diagram
Hysteresis Mode
Hysteresis Mode (NO Type)
Hysteresis Mode (NC Type)
Wiring Definition
Even when Not Using 4-20mA Output the Blue Power (-) and Analogue Output Wire
must be connected ( Blue + Yellow) Connected to Power Supply VDC (-)
-
NPN Mode
-
PNP Mode
Brown (+) VDC
Power Blue (-) Ground Yellow 4-20 mA (+) Analog Output
Documents / Resources
|
truflo OBS-LE Series LED Digital Pressure
Gauge
[pdf] Instruction Manual
OBS-LE-Series-Manual-1-1.pdf, OBS-LE-Series-Manual-1.pdf, OBS-LE Series LED
Digital Pressure Gauge, OBS-LE Series, LED Digital Pressure Gauge, Digital
Pressure Gauge, Pressure Gauge
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