Omega DP20 User Manual Download

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User’s Guide

DP20

Economical Multisignal Meter

for Process, Temperatures and Electrical signals

Summary of Contents for DP20

Page 1: ...e mail info omega com For latest product manuals www omegamanual info Shop online at omega com User sGuide DP20 Economical Multisignal Meter for Process Temperatures and Electrical signals TM...

Page 2: ...eserves the right to alter specifications without notice Servicing North America U S A Omega Engineering Inc Headquarters Toll Free 1 800 826 6342 USA Canada only Customer Service 1 800 622 2378 USA C...

Page 3: ...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...

Page 4: ...14 Measuring with NTC probes 12 1 15 Measuring with PTC probes 12 1 16 Process measures 13 1 17 Measuring frequency 13 1 18 Measures of resistance 14 1 19 Measures of potentiometers 14 1 20 Fast acces...

Page 5: ...th one of the following functions 15 Vdc excitation voltage Vexc for process signals 5 Vdc excitation for potentiometer signals connection for the Pt100 third wire compensation external contact EK fun...

Page 6: ...Thermal drift 150 ppm Excitation voltage 15 Vdc max 30 mA for process signals 5 Vdc for potentiometers at terminal 5 see sections 1 5 and 1 16 Power supply power U 18 to 265 Vac dc isolation 1500 Vef...

Page 7: ...19 Range Jumpers S Jumper T AC voltages and currents 600 Vac G I 4 5 200 Vac I 20 Vac A I 2 Vac B I 200 mVac C I 60 mVac E I 5 Aac I 20 mAac D I DC voltages and currents 600 Vdc G 4 5 200 Vdc 20 Vdc...

Page 8: ...instrument start up follow the steps listed at section 1 7 Signal connections are indicated at section 1 5 Location for internal jumpers is indicated at section 1 9 Vac ranges Veff Scale by default S...

Page 9: ...listed at section 1 7 Signal connections are indicated at section 1 5 Location for internal jumpers is indicated at section 1 9 Vdc ranges Scale by default Scalable Jumper S see section 1 9 Jumper T...

Page 10: ...uded Thermocouple K E 4 5 100 1350 C 148 2462 F 2 tc 4 tc 3 Thermocouple J 100 1200 C 148 2192 F Thermocouple E 100 1000 C 148 1832 F Thermocouple N 100 1300 C 148 2372 F Thermocouple L 100 900 C 148...

Page 11: ...5 and 0 0390 see section 1 28 7 This parameter is associated to the specific model of probe installed Sensor Jumper S see section 1 9 Jumper T see section 1 9 Range in C in F Total error Connection te...

Page 12: ...1 5 Location for internal jumpers is indicated at section 1 9 See below connections for NTC probe 1 14 Measuring with NTC probes NTC R25 configurable Jumper S see section 1 9 Jumper T see section 1 9...

Page 13: ...an AC voltage Vac or AC current Aac signal The instrument detects each 0 crossing of the signal either 0Vac or 0Aac All available Vac and Aac signal ranges are accepted as frequency input signal How t...

Page 14: ...n See section 1 9 for a list of available functions Start up connections and jumpers For instrument start up follow the steps listed at section 1 7 Signal connections are indicated at section 1 5 Loca...

Page 15: ...be applied with a free potential contact called External control To configure the second scaling 1 configure the internal jumper T to activate the EK external control function see section 1 9 2 associ...

Page 16: ...duced place again the front filter at cover X and then insert clips A B C and D in this order Risk of electric shock Removing the front cover will grant access to the internal circuits Disconnect the...

Page 17: ...s to the fast access menu Inside the menus it moves vertically through the different menu options At menus with numerical value entries it modifies the digit selected by increasing its value to 0 1 2...

Page 18: ...type of probe from the available options Pt100 3 wire Pt100 2 wire Pt500 Pt1000 Ni100 Ni200 and Ni1000 For measures with 2 wires a manual compensation for the wire resistance error is available using...

Page 19: ...The maximum type alarm or minimum type activates when the display value is higher or lower than the setpoint value at the Setpoint SEt parameter enter the value for the alarm activation point This pa...

Page 20: ...l value is not the actual input value select parameter Decimal point 0 dP 0 to remove the decimal point on display select parameter Decimal point 1 dP 1 to activate the decimal point at position XXX X...

Page 21: ...reading Accepts values from 500 to 500 This function allows to compensate for the possible error introduced by the resistance of the signal wires when measuring Pt probes Ni probes or resistances For...

Page 22: ...and NTC For thermocouple probes resolution is fixed to 1 at the Degrees dEG menu select the temperature values to be read in C degrees Celsius or in F degrees Fahrenheit at the Alpha ALPh menu select...

Page 23: ...i Modbus RTU r 485 select Modbus RTU r 485 at Tools out 1 r 485 to have the serial output configuration at this menu entry Configure the address for the instrument parameter Address 1 to 247 Addr the...

Page 24: ...nge 20 Vdc range 2 Vdc range 200 mVdc range 60 mVdc range 5 Adc range 20 mAdc range Process 4 20 mA range 0 10 Vdc range Thermocouples thermocouple K thermocouple J thermocouple E thermocouple N therm...

Page 25: ...5 seconds Average filter 0 to 100 Steps Offset reading Option 1 analog output relay disabled Tools Modbus RTU the parameter 420 gives access to the calibration menu for the analog out put See section...

Page 26: ...ion value selected at Tool Out 1 Analog output Display Low Display High Modbus RTU Address 1 to 247 Speed Kbps Format Password Version Factory reset Minimum Brightness Maximum Standard Alpha Alpha 385...

Page 27: ...the instrument from power before starting any maintenance and or installation action Theinstrumentdoesnothaveageneralswitchandwillstartoperationassoonaspoweris connected The instrument does not have p...

Page 28: ...and is proportional to the reading of the instrument The mA output can be connected to work in active loop the module provides the power of the loop or passive mode the power of the loop is not provid...

Page 29: ...elect value 420 see section 1 28 7 to inform the instrument that there is a M1 analog output module installed From this point you will need the calibration sheet provided together with the module M1 T...

Page 30: ...Air Velocity Indicators Turbine Paddlewheel Systems Totalizers Batch Controllers pH CONDUCTIVITY pH Electrodes Testers Accessories Benchtop Laboratory Meters Controllers Calibrators Simulators Pumps I...

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