truflo OBS-LE Series User manual

OBS-LE Series LED Digital Pressure Gauge
Operating Manual
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.
Function of Buttons
Psi
AL1 AL2
Bar MPa KPa/KG
Bright LED Display
LED Relay Alarms
Engineering Pressure Units
Prefilled Glycerin
Lock key / Shift Digits
Programming Key
½" FNPT
Psi BAR MPr KPa/KG
LED Digital Pressure Gauge / Transmitter / Switch
OBS-LE SERIES
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PROGRAMMING MODE OPERATING PROCEDURES
Block Charts
Power On
Press Key for 3 Seconds to Enter Programming Mode.
Press Key to Program Relay 1 or Relay 2 Press to Save your Selecting.
Press Key for Relay Hystresis mode (Prevents Relay Chatter)
Display Descriptions
Alarm Setpoint
Default
No or Nc
NPN
-1- or -2-
HYS
00.0
Press Key to Select normally Open or Normally Closed Pulse Output.
Press Key to Save.
(3 Sec)
Press
Press
Press
Press
Press
Press Key to Select PNP (Sourcing) or NPN (Sinking)
Press Key to Save.
System Programming Steps
Analog 4-20mA
Block Charts
Power On
Press Key to ChangeValue of High Relay Set Point.
Press to Move Cursor. Press Key to Save
Press Key to Change theValue of Low Relay Set-Point.
Press Key to Save
Press change to Key to Move Cursor. Press Key to Save.
Display Descriptions
Err
LP
Load
HP
If LP Relay Output is Higher than HP Relay Output than Error (ERR) will Flash.
Press
Press
Press
Press
Default
Start
Here
Start
Here
Plus & Play Design - No Programming
4mA = 0 Psi
20mA
= 150 Psi (Refer to wiring Diagram Page-04)
LED Digital Pressure Gauge / Transmitter / Switch
OBS-LE SERIES
Follow Hand For Programming
01
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Psi
AL1 AL2
Bar MPa KPa/KG
½" FNPT
One Piece
No Assembly
Require
d
DIMENSIONS
INSTALLATION
NO
YES
0
0
10
20
40
50
60
30
2
4
3
1
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.
1.
2.
RoHS
Compliant
HOW TO ORDER
OBS-LE PVC (P) CPVC (C)
PP (PP) PVDF (PF)
Body Material Connection
* Flanged Available
(M) -MNPT ½"
(F)-FNPT ½"
Psi
AL1 AL2
Bar MPa KPa/KG
2.32"
PP
PVDF Diaphragm
TEFLON®
FPM
5.35"
3.17"
2.13"
PP / PVDF
2.32"
PP
PVDF Diaphragm
TEFLON®
FPM
Psi
AL1 AL2
Bar MPa KPa/KG
5.35"
3.17"
2.13"
0.72"
½" MNPT
Psi
AL1 AL2
Bar MPa KPa/KG
LED Digital Pressure Gauge / Transmitter / Switch
OBS-LE SERIES
02
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Method of connecting cables to the clamping connectors
Instrument
Screw Driver
(Provided)
Source for
Relays output, depends
on the instalation
Load no.1
Power supply
85.280V
17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1
ProAlert 1000
ViewSonic Alerm
NORMAL
TEST
SILENCE
Examples : Pump Shut-Off
Valve Shut-Off
ProAlert
Alarm
Relay
Relay
Pump
Valve
Audible /Vesual
Use Screw Driver Provided
Truflo OBS LED Series 4-20mA Wiring Diagram
Psi
AL1 AL2
Bar MPa KPa/KG
Blue
Brown
Yellow
Example : TVL Series Controller + Display
4-20mA
(+) VDC
(-) VDC
TVL Series
LED Digital Pressure Gauge / Transmitter / Switch
OBS-LE SERIES
03
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LP
ON
OFF
HP
ON
OFF
LP HP
Coil
Common
N.C.
DC
Relay
4-20mA Out (+)
N.O.
Coil
Common
N.C.
DC
Relay
DC
Supply
+
N.O.
White
Cable Cable
Blue
Black
Yellow
Brown
1. NPN Mode
DC
Relay
4-20mA
Out
Common
N.C. N.O.
DC
Supply
+
White
Blue
Black
Yellow
Brown
2. PNP Mode
Coil
DC
Relay
Common
N.C. N.O.
Coil
Hysteresis Mode (NO Type) Hysteresis Mode (NC Type)
Fig - 1 Fig - 2
Blue
Power Ground (-)
Black Yellow
Analog
Output (+)
Brown
Supply Power (+)
10 to 30Volls DC
White
Digital Output2
NPN or PNP (Program Selected)
100mA,30VDC (max.)
Digital Output1
NPN or PNP (Program Selected)
100mA,
30VDC(max.)
Wiring Diagram
Hysteresis Mode
Wiring Definition
( - )4-20mA (+)
( - )
Even when Not Using 4-20mA Output the Blue Power (-) and Analogue OutputWire must
be connected ( Blue +Yellow) Connected to Power SupplyVDC (-)
Brown (+)VDC
Power Blue (
- ) Ground
Yellow 4-20 mA (+) Analog Output
LED Digital Pressure Gauge / Transmitter / Switch
OBS-LE SERIES
04
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Aetna Plastics - Phone [phone] - Fax [phone] - Email [email protected]