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OMEGA’s  policy  is  to  make  running  changes,  not  model  changes,  whenever  an  improvement  is  possible.  This  affords  our 

customers the latest in technology and engineering.
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written consent of OMEGA ENGINEERING, INC.

FOR 

WARRANTY

 RETURNS, please have the  

following information available BEFORE contacting 

OMEGA:
1.   Purchase Order number under which the product 

was PURCHASED,

2.   Model and serial number of the product under 

warranty, and

3.  Repair instructions and/or specific problems  

  relative to the product.

FOR 

NON-WARRANTY

 REPAIRS, consult 

OMEGA for current repair charges. Have 

the following information available BEFORE 

contacting OMEGA:
1.  Purchase Order number to cover the COST  

  of the repair,
2.  Model and serial number of the product, and
3.  Repair instructions and/or specific problems  

  relative to the product.

RETURN REQUESTS/INQUIRIES

Direct  all  warranty  and  repair  requests/inquiries  to  the  OMEGA  Customer  Service  Department.  BEFORE 

RETURNING  ANY  PRODUCT(S)  TO  OMEGA,  PURCHASER  MUST  OBTAIN  AN  AUTHORIZED  RETURN  (AR) 

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DELAYS). The assigned AR number should then be marked on the outside of the return package and on any 

correspondence.
The  purchaser  is  responsible  for  shipping  charges,  freight,  insurance  and  proper  packaging  to  prevent 

breakage in transit.

WARRANTY/DISCLAIMER

OMEGA  ENGINEERING,  INC.  warrants  this  unit  to  be  free  of  defects  in  materials  and  workmanship  for  a 

period of 

13 months

 from date of purchase. OMEGA’s WARRANTY adds an additional one (1) month grace 

period to the normal 

one (1) year product warranty

 to cover handling and shipping time. This ensures 

that OMEGA’s customers receive maximum coverage on each product.
If  the  unit  malfunctions,  it  must  be  returned  to  the  factory  for  evaluation.  OMEGA’s  Customer  Service 

Department  will  issue  an  Authorized  Return  (AR)  number  immediately  upon  phone  or  written  request. 

Upon  examination  by  OMEGA,  if  the  unit  is  found  to  be  defective,  it  will  be  repaired  or  replaced  at  no 

charge.  OMEGA’s  WARRANTY  does  not  apply  to  defects  resulting  from  any  action  of  the  purchaser, 

including  but  not  limited  to  mishandling,  improper  interfacing,  operation  outside  of  design  limits,  

improper  repair,  or  unauthorized  modification.  This  WARRANTY  is  VOID  if  the  unit  shows  evidence  of  

having been tampered with or shows evidence of having been damaged as a result of excessive corrosion; 

or  current,  heat,  moisture  or  vibration;  improper  specification;  misapplication;  misuse  or  other  operating 

conditions  outside  of  OMEGA’s  control.  Components  in  which  wear  is  not  warranted,  include  but  are  not  

limited to contact points, fuses, and triacs.

OMEGA  is  pleased  to  offer  suggestions  on  the  use  of  its  various  products.  However,  

OMEGA  neither  assumes  responsibility  for  any  omissions  or  errors  nor  assumes  liability  for 

any damages that result from the use of its products in accordance with information provided 

by OMEGA, either verbal or written. OMEGA warrants only that the parts manufactured by the 

company will be as specified and free of defects. OMEGA MAKES NO OTHER WARRANTIES OR  

REPRESENTATIONS OF ANY KIND WHATSOEVER, EXPRESSED OR IMPLIED, EXCEPT THAT OF 

TITLE,  AND  ALL  IMPLIED  WARRANTIES  INCLUDING  ANY  WARRANTY  OF  MERCHANTABILITY 

AND  FITNESS  FOR  A  PARTICULAR  PURPOSE  ARE  HEREBY  DISCLAIMED.  LIMITATION  OF  

LIABILITY:  The  remedies  of  purchaser  set  forth  herein  are  exclusive,  and  the  total  liability  of  

OMEGA  with  respect  to  this  order,  whether  based  on  contract,  warranty,  negligence,  

indemnification,  strict  liability  or  otherwise,  shall  not  exceed  the  purchase  price  of  the  

component  upon  which  liability  is  based.  In  no  event  shall  OMEGA  be  liable  for  

consequential, incidental or special damages.

CONDITIONS:  Equipment sold by OMEGA is not intended to be used, nor shall it be used: (1) as a “Basic 

Component”  under 10 CFR  21 (NRC), used in or  with any  nuclear  installation  or  activity;  or  (2)  in  medical 

applications  or  used  on  humans.  Should  any  Product(s)  be  used  in  or  with  any  nuclear  installation  or 

activity, medical application, used on humans, or misused in any way, OMEGA assumes no responsibility 

as  set  forth  in  our  basic  WARRANTY/DISCLAIMER  language,  and,  additionally,  purchaser  will  indemnify 

OMEGA and hold OMEGA harmless from any liability or damage whatsoever arising out of the use of the 

Product(s) in such a manner.

Summary of Contents for PCL120

Page 1: ...NORWALK CT ww e mail info omega com For latest product manuals w omegamanual info Shop online at omega comSM User sGuide PCL120 Precision Loop Calibrator ...

Page 2: ...el 203 359 1660 Fax 203 359 7700 e mail info omega com For Other Locations Visit omega com worldwide The information contained in this document is believed to be correct but OMEGA accepts no liability for any errors it contains and reserves the right to alter specifications without notice omega com info omega com Servicing North America U S A Omega Engineering Inc Headquarters Toll Free 1 800 826 ...

Page 3: ...HART Resistor Setup 4 4 Basic Operating Modes A Milliamp Source 5 B Milliamp Simulation 6 C Milliamp Measure 7 D Milliamp Measure with Loop Power 7 E Voltage Measure 8 5 Advanced Operating Modes A Auto Step Ramp Mode 8 B Percent Error Mode 9 C Min Max Datalogging 9 6 Maintenance A Battery Selection 10 B Input Protection 10 C Calibration 10 7 Specifications 11 ...

Page 4: ......

Page 5: ...le simultaneously reading the resultant loop current All readings are displayed in both milliamps and of span 1 1 Customer Service OMEGA Engineering Tel 203 359 1660 Fax 203 359 7811 www omega com email cservice omega com 1 2 Unpacking Remove the packing list and verify that all equipment has been received If there are any questions about the shipment please call OMEGA at 1 800 826 6342 When the s...

Page 6: ...ual Important Information Off On Canadian Standards Association The following definitions apply to the terms Warning and Caution Warning identifies conditions and actions that may pose hazards to the user Caution identifies conditions and actions that may damage the instrument being used Use the calibrator only as specified in this manual otherwise injury and damage to the calibrator may occur ...

Page 7: ...ads for damaged insulation or exposed metal When using the probes keep your fingers away from the probe contacts Keep your fingers behind the finger guards on the test leads Do not use the calibrator if it operates abnormally Protection may be impaired When in doubt have the calibrator serviced Do not operate the calibrator around explosive gas vapor or dust Disconnect test leads before changing t...

Page 8: ...it The battery save feature will turn off the PCL120 automatically if no keys are pressed after 30 minutes To change the length of time on the battery save feature or to disable it completely perform the following steps during power up 1 Turn off the PCL120 2 Hold the key down firmly 3 Turn on the PCL120 4 After power up wait about 1 second and release the key 5 The display will now indicate the a...

Page 9: ...unit is shipped with the jumper in place To remove the jumper open the case and refer to Figure 2 to locate the jumper then pull off the jumper to enable the resistor The jumper can be stored outside of the unit or re installed only on one pin so that the circuit remains open Figure 2 Note When the 250 ohm resistor is enabled the load driving capability is reduced from 1200 ohms to 950 ohms In mos...

Page 10: ...lecting the decade to be adjusted 4 The output can also be stepped in 4 mA steps 25 using the key 5 The auto step feature provides automated output changes Refer to the Auto Modes Section of the manual for more information B Milliamp Simulation Figure 4 shows how to connect the PCL120 to act as a two wire transmitter using an external power supply In this application the power for the loop comes f...

Page 11: ...entage relative to a 4 to 20 mA span D Milliamp Measure with Loop Power Again Figure 5 shows the proper connections But in this case the device under test is a two wire transmitter that requires an external power supply to generate an output current In this application the PCL120 will supply 24 volts to the loop while simultaneously measuring the resultant loop current To turn on the loop power su...

Page 12: ... The PCL120 has the ability to step the mA output in 25 steps automatically in 5 second intervals It can also ramp the mA output from 4 mA to 20 mA then back to 4 mA in a linear fashion automatically To activate the Auto Step Ramp mode use the following procedure 1 The Auto Step Ramp function can be used in either the source mA or simulate mA mode Place the PCL120 in one or the other mode 2 Connec...

Page 13: ... error or deviation calculated as a percentage of span 6 When the key is released the display will return to normal operation C Min Max Datalogging When the PCL120 is in any of the measure modes mA mA w loop power or voltage it will continuously monitor and store the minimum and maximum values for that particular input mode To operate the datalogging feature use the following procedure 1 Place the...

Page 14: ...se while maintaining a float charge on the Ni Cd battery Warning Never connect the AC adapter charger with the 9V alkaline battery installed To order the 9V Ni Cd battery or AC adapter charger contact OMEGA Engineering at 800 826 6342 B Input Protection The PCL120 incorporates a fuseless input protection and will tolerate most misconnections up to 250 VAC or 250 VDC for up to 30 seconds duration B...

Page 15: ...nts Resolution 001 mA 001 volts Loop Supply Voltage 24 VDC Typical Drive Capability 1200Ω w o Hart 950Ω w Hart Auto Error Function Yes Selectable Decade Adjustment Yes Auto Step Ramp Yes Preset Outputs 5 Loop Power Measure Yes Capability Operating Temperature 10 to 55 C Power Supply 1 9V Battery Rechargeable Battery Option Yes AC Adapter Yes Size 5 7 x 3 15 x 1 43 Weight 12 oz ...

Page 16: ......

Page 17: ...by OMEGA if the unit is found to be defective it will be repaired or replaced at no charge OMEGA s WARRANTY does not apply to defects resulting from any action of the purchaser including but not limited to mishandling improper interfacing operation outside of design limits improper repair or unauthorized modification This WARRANTY is VOID if the unit shows evidence of having been tampered with or ...

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