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2

 

IM_ONE-01

 

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MOUNTING

Tools Required

1-1/16" wrench for sensor hex fitting

Screwdriver for mounting bolts

2 mounting bolts (1/4" Max.)

BEFORE INSTALLING, CHECK THE SENSOR MODEL SELECTED FOR COMPATIBILITY TO THE PROCESS MEDIA IN CONTACT WITH THE SENSOR AND WETTED 
PARTS.

FOR PRESSURE AND LOCAL TEMPERATURE MODELS ALWAYS HOLD A WRENCH ON THE SENSOR HEX WHEN MOUNTING UNIT. DO NOT TIGHTEN BY TURNING 
ENCLOSURE, THIS WILL DAMAGE THE CONNECTION BETWEEN THE SENSOR AND HOUSING.

INSTALL UNITS WHERE SHOCK, VIBRATION AND TEMPERATURE FLUCTUATIONS ARE MINIMAL.  MOUNT UNIT TO PREVENT MOISTURE FROM ENTERING 
ENCLOSURE.  USE  PROPERLY  RATED  SEALING  FITTINGS  FOR  ELECTRICAL  WIRE  ENTRY.  DO  NOT  MOUNT  UNIT  IN  AMBIENT  TEMPERATURES  EXCEEDING 
PUBLISHED LIMITS. THIS IS ESPECIALLY CRITICAL FOR LOCAL MOUNT TEMPERATURE UNITS.

IN  HIGH  SHOCK  AND  VIBRATION  APPLICATIONS,  SECURE  THE  ENCLOSURE  AS  DETAILED  ON  THE  NEXT  PAGE.  DO  NOT  MOUNT  VIA  THE  PROCESS 
CONNECTION ONLY. 

FOR DIFFERENTIAL PRESSURE MODELS (ESPECIALLY LOW RANGE UNITS), CARE SHOULD BE TAKEN TO MOUNT THE SENSOR LEVEL TO MINIMIZE ANY 
PRESSURE READING OFFSETS.  THE OFFSET COMMAND MAY BE USED TO ZERO THE DISPLAY, SEE PAGE 8 FOR ADDITIONAL INFORMATION.

Electronics Housing

Mount the unit using the two (2) 1/4" clearance holes in the mounting ears. Plumb sensor to the process port.  See page 14 for dimensions.

The One Series product may be mounted in any position except with the electrical conduit connection facing up. Ensure the process connection is sealed to the 
process port to prevent leakage.  Care should be taken to minimize effects of shock and vibration.

PROCESS CONNECTIONS AND SENSOR INSTALLATION

Pressure and Differential Pressure Models

To pipe mount:  Thread the pressure connection onto the pressure port, making sure that the mating threads are clean and free of debris.  Use a wrench on the 
hex pressure connection to tighten. Test for leaks.  On Differential Pressure models, the Low (L) side pressure must NOT exceed the high (H) side pressure.

WARNING:  NEVER INSERT ANY OBJECT INTO THE PRESSURE SENSOR OPENING.  DAMAGE TO THE SENSOR WILL RESULT, AFFECTING ACCURACY.

Local and Remote Temperature Models

For Remote Sensing (models C, H & R):  Route the extension wire to avoid contact with live components. Avoid kinks, or excessive flexing.

For Surface Sensing (models C, H & R):  Secure the sensor housing to the pipe or vessel using an adhesive or strapping method suitable for the application. 

For Immersion Sensing (models C, H, R & L):  Use of a thermowell is highly recommended to aid in maintenance, testing and preservation of the system integrity. 
Insert the sensor housing (0.25" diameter) into the well ensuring that the housing bottoms out and will be completely immersed in the media (2.5" min.)  Secure 
the sensor using an appropriately sized compression fitting (PF73 or equivalent) or union connector (SA6213-348 or equivalent.)

For Local Ambient Sensing (model L):  Mount using the mounting ears on the electronics housing.  Mount the product to ensure that the sensor housing will not 
be damaged and where the measured temperature is representative of the surrounding environment.

For best temperature measurements, the sensor housing must be in full contact with the surface or media being measured.  Heat transfer compound may be 
used to aid in fully transferring the media temperature to the sensor housing. Locate where the temperature is most representative of the system.  Minimum 
insertion depth is 2-1/2".

CLEANING THE FACEPLATE

One Series models with ATEX approvals have a urethane based conductive coating applied to the faceplate perimeter.  The cleaning 
of this surface should be performed with a damp cloth only.  Should the surface exhibit signs of flaking or wear, the product should 
be removed from service in hazardous locations where ATEX approvals are required.

Содержание 2W2D

Страница 1: ...NS ONLY THIS EQUIPMENT IS ATEX CERTIFIED SUITABLE FOR APPROPRIATE USE IN GAS ZONE 2 DUST ZONE 22 APPLICATIONS OR GAS ZONE 0 DUST ZONE 20 APPLICATIONS WHEN INSTALLED PER DRAWING A 62174 20 EUROPE 0539 DEMKO 03 ATEX 0322281X 0539 DEMKO 03 ATEX 0322281X II 1 G EEx ia IIC T5 II 3 G EEx nL IIC T5 II 1 D T 90ºC II 3 D T 90ºC 40ºC TAMB 85ºC IP66 40ºC TAMB 85ºC IP66 2W3A MODELS THIS EQUIPMENT IS SUITABLE ...

Страница 2: ...lean and free of debris Use a wrench on the hex pressure connection to tighten Test for leaks On Differential Pressure models the Low L side pressure must NOT exceed the high H side pressure WARNING NEVER INSERT ANY OBJECT INTO THE PRESSURE SENSOR OPENING DAMAGE TO THE SENSOR WILL RESULT AFFECTING ACCURACY Local and Remote Temperature Models For Remote Sensing models C H R Route the extension wire...

Страница 3: ... PAGE 12 FOR ADDITIONAL INFORMATION ON SELECTING AN INTRINSIC SAFETY BARRIER SUBSTITUTION OF COMPONENTS MAY IMPAIR INTRINSIC SAFETY WARNING MODEL 4W3A ACCEPTS 90 130 VAC VDC AS ITS POWER SOURCE THE SWITCHED OUTPUT MAXIMUM LOAD RATING IS 10 A 24 280 VAC AT T amb 38 C 100 F DERATE 1 8 A 10 C 18 F OVERLOADING THE SWITCH MAY CAUSE FAILURE WARNING THE ONE SERIES 8W2D MODEL ACCEPTS 12 30 VDC AS ITS POWE...

Страница 4: ...L1 and L2 terminals Connect the potential free solid state relay at TB1 to an appropriate load Refer to the Switch Ratings Table for the switch ratings The 4W3A has one terminal block labeled TB1 TB1 has four positions marked with L1 L2 and a switch symbol covering the remaining two positions TB1 terminal block accepts 14 22 AWG wiring and the recommended torque is 3 5 in lbs The 8W2D has three te...

Страница 5: ...switch is fully programmable over the entire range of the sensor Reaction time for the One Series to a process change is typically 50 mS or less 2 WIRE SIMPLICITY 2W Models only The One Series 2 Wire electronic pressure switch patented is designed to operate on discrete input leakage current models 2W2D and 2W3A or analog input 4 20 mA loop power models 2WLP41 and 2WLP43 The microprocessor based O...

Страница 6: ...ription of Offset and Span In addition the user can easily access information such as the set point dead band and minimum maximum process readings By pushing the right button once the display will scroll as follows SP1 XX XX DB1 XX XX SP2 XX XX DB2 X XX 8W2D model only By pushing the left button once the display will scroll the min max process values seen MAX XX XX MIN XX XX The display will rever...

Страница 7: ... confirm save the changes and return to the Process Display mode to Discard changes press the right button NO will be displayed Press both buttons to confirm discard the changes and return to the Process Display mode KEY PROGRAMMING FEATURES SWITCH MODE The One Series allows the switch output to be set up for either 3 state I Am Working or 2 state operation For an overview of the I Am Working IAW ...

Страница 8: ...usly captures the readings from the sensor and stores the minimum and maximum values since the last time they were reset These can be viewed at any time by pushing the left button The display will scroll the information and then return to the Process Display mode To reset these values enter the Programming Mode see page 6 use the left button to get to the CLR MAX MIN command and press the right bu...

Страница 9: ...resents the expected variation in the process variable The number is limited to 10 of the full scale range of the sensor The diagram below illustrates the feature s operation T0 Process variable ramp up T1 Process variable stabilizes new thresholds calculated T2 Threshold exceeded new thresholds calculated timer reset T3 Low threshold exceeded new thresholds calculated timer reset T4 Plugged Port ...

Страница 10: ... diagnostics are capable of detecting many possible fault conditions Some fault conditions will clear automatically when the parameter returns to normal others require the unit to be powered down and restarted and some are catastrophic and require repair or replacement A list of fault conditions is shown below DISPLAY WILL SCROLL FAULT RESULT SWITCH OUTPUT 4 20 mA OUTPUT PLUG Plugged Port Detected...

Страница 11: ...an help Please have the manufacturer s model number ready when you call us In rare cases when the series resistor value is too large and falls out of the Acceptable Range placing another resistor across the input will allow it to work Please call 617 926 1000 Technical Sales for assistance Please note that a maximum of 30 VDC supply voltage and a load of 40 mA must not be exceeded or permanent dam...

Страница 12: ...ty barriers must be installed with a suitable 1Ω earth ground Isolated barriers offer simplified installation since there is no requirement for the ground but are generally more expensive than the diode safety barriers Shunt Diode Safety Barriers The entity parameters of diode safety barriers suitable for use with the 2W2D models are V max 28 Volts I max 93 mA Because the 2W2D model derives its op...

Страница 13: ...IM_ONE 01 13 www ueonline com PROCESS DISPLAY ...

Страница 14: ...14 IM_ONE 01 www ueonline com Models 8W2D and 2WLP Dual Conduit shown with Temperature Sensor Models 4W3A 2W2D and 2W3A Single Conduit shown with Gauge Pressure Sensor DIMENSIONAL DRAWINGS ...

Страница 15: ...IM_ONE 01 15 www ueonline com Temperature Model L Temperature Model R SENSOR OPTIONS Gauge Pressure 1 2 NPT female Temperature Models H C Differential Pressure ...

Страница 16: ...ca tions where damage could endanger property or personnel Electrical ratings stated in literature and on nameplate must not be exceeded Overload on a switch can cause damage even on the first cycle Wire unit according to local and national electrical codes using wire size recommended in installation sheet Do not mount unit in ambient temp exceeding published limits LIMITED WARRANTY Seller warrant...

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