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IM_ONE-01 

3

 

www.ueonline.com

WIRING

 

Tools Required

Phillips-head screwdriver
Small slotted screwdriver 

Wire strippers

WARNING:    EXPLOSION  HAZARD  -  DO  NOT  REPLACE  COMPONENTS  UNLESS  POWER  HAS  BEEN  SWITCHED  OFF  OR  THE  AREA  IS  KNOWN  TO  BE  NON-
HAZARDOUS. 

WARNING:  EXPLOSION HAZARD - DO NOT DISCONNECT EQUIPMENT UNLESS POWER HAS BEEN SWITCHED OFF OR THE AREA IS KNOWN TO BE NON-
HAZARDOUS

WARNING:  TO MAINTAIN ENCLOSURE INTEGRITY FRONT DISPLAY SCREWS ARE TO BE TORQUED AT 4 IN-LBS (0.45 N-m) IN END USE APPLICATION.

WARNING:  THE DEVICES SHALL BE PROPERLY GROUNDED IN THE END USE APPLICATION.

WARNING:  LEADWIRES MUST BE RATED 75°C MINIMUM COPPER CONDUCTOR ONLY.

WARNING:  MODEL 2W2D ACCEPTS 12-30 VDC AS ITS POWER SOURCE, DIRECTLY FROM DIGITAL INPUTS TO PLCS, DCSS AND OTHER LOW-POWER DC LOADS. 
THE SWITCHED OUTPUT MAXIMUM LOAD RATING IS 40 mA. (THE UNIT MUST NOT BE CONNECTED DIRECTLY TO A POWER SUPPLY WITHOUT AN APPROPRI-
ATE CURRENT LIMITING LOAD SUCH AS THAT PROVIDED BY A PLC/DCS DISCRETE INPUT.  

OVERLOADING THE SWITCH MAY CAUSE FAILURE.

WARNING:  MODEL 2W3A ACCEPTS 90-130 VAC/VDC AS ITS POWER SOURCE, DIRECTLY FROM DISCRETE INPUTS TO PLCS, DCSS AND OTHER LOW-POWER 
LOADS.  THE SWITCHED OUTPUT MAXIMUM LOAD RATING IS 100 mA.  THE UNIT MUST NOT BE CONNECTED DIRECTLY TO A POWER SUPPLY WITHOUT 
AN  APPROPRIATE  CURRENT  LIMITING  LOAD  SUCH  AS  THAT  PROVIDED  BY  A  PLC/DCS  DISCRETE  INPUT.   

OVERLOADING  THE  SWITCH  MAY  CAUSE 

FAILURE.

WARNING:

  

MODEL 2WLP IS LOOP-POWERED AND OBTAINS POWER FROM THE 4-20 mA LOOP.  THE 2WLP41 SWITCHED OUTPUT MAXIMUM LOAD RATING 

IS 0.6 A @ 140 VDC OR VAC AND 0.3 A @ 280 VDC OR VAC FOR MODEL 2WLP43.  OVERLOADING THE SWITCH MAY CAUSE FAILURE.  

THE SWITCH MUST 

NOT BE CONNECTED DIRECTLY TO A POWER SUPPLY.

WARNING:    FOR  INTRINSICALLY-SAFE  INSTALLATIONS,  PLEASE  REFERENCE  THE  CONTROL  DRAWINGS  (UE  62174-19  NORTH  AMERICA  OR  62174-20 
EUROPE) FOR INTRINSIC SAFETY ENTITY PARAMETERS AND OTHER NECESSARY INFORMATION. UNIT MUST BE WIRED TO AN APPROVED I.S. BARRIER. 
REFER  TO  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 POWER SOURCE.  THE MAXIMUM LOAD RATING FOR EACH SWITCH IS SHOWN IN 

THE TABLE ON PAGE 5.  

OVERLOADING THE SWITCH MAY CAUSE FAILURE.

Remove the four (4) Phillips-head screws holding the faceplate to the enclosure. Gently remove the faceplate module. Exercise caution so that the wires going 
between the sensor and the faceplate module are not damaged or removed. Locate field wires and strip carefully. Insert field wiring per the diagrams on page 4. 
Carefully place the faceplate back on the enclosure and re-attach using the (4) Phillips screws (4 in-lbs or 0.45 N-m).  DO NOT OVERTIGHTEN.

Terminal Block and Torque Details

The 2W2D terminal block is marked “+” and “-”, and includes a chassis ground symbol. These markings indicate the polarity of this polarized switch.  Polarity 
must be observed or the 2W2D will not work, making it necessary to reverse the wiring connections.  The 2W2D is reverse polarity protected, so no damage 
results from miswiring. The 2W2D terminal block accepts 14-22 AWG wiring and the recommended torque is 7 in-lbs.

The 2W3A terminal block is market “~” and “~”, and includes a chassis ground symbol. The 2W3A is a non-polarized switch, so connections can be made to 
either terminal without observing polarity. The 2W3A terminal block accepts 14-22 AWG wiring and the recommended torque is 7 in-lbs.

The 2WLP has two terminal blocks, TB1 and TB2.  TB1 has three positions, two marked with a switch symbol and one marked with a chassis ground symbol. TB1 
terminal block accepts 14-22 AWG wiring and the recommended torque is 3.48 in-lbs. TB2 has two positions marked “4-20+” and
4-20-”.  These markings indicate the polarity of the 4-20 mA analog signal. Polarity must be observed.  TB2 terminal block accepts 14-26 AWG wiring and the 
recommended torque is 4.38 in-lbs.

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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