Precision Digital Corporation ProtEX-MAX PD8-6060 Instruction Manual Download Page 1

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PD8-6060 Explosion-Proof Dual Analog Input Process Meter

Instruction Manual

PRECISION DIGITAL CORPORATION

233 South Street • Hopkinton MA 01748 USA
Tel (800) 343-

1001 • Fax (508) 655-8990

www.predig.com

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Fully-Approved Explosion-Proof Meter

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Dual 0-20 mA, 4-20 mA, 0-5 V, 1-5 V, and ±10 V Inputs with Math Functions

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Addition, Difference, Average, Multiplication, Division, Minimum, Maximum, Ratio, & More

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Dual-Line 6-Digit Display, 0.6" (15 mm) & 0.46" (12 mm)

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SafeTouch Through-Glass Button Programming

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Display Mountable at 0°, 90°, 180°, & 270°

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Isolated 24 VDC @ 25 mA Transmitter Power Supply

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Easy Field Scaling in Engineering Units without Applying an Input

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4 Relays with Interlocking Capa Isolated 4-20 mA Output Option

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Free PC-Based, On-Board, MeterView Pro USB Programming Software

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SunBright Display Standard Feature; Great for Outdoor Applications

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Operating Temperature Range: -40 to 60°C (-40 to 140°F)

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FM Approved as Explosion-Proof / Dust-Ignition-Proof / Flame-Proof

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CSA Certified as Explosion-Proof / Dust-Ignition-Proof / Flame-Proof

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ATEX and IECEx Certified as Flame-Proof

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Input Power Options: 85-265 VAC / 90-265 VDC or 12-24 VDC / 12-24 VAC

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Multi-Pump Alternation Control

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Password Protection

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32-Point Linearization, Square Root Extraction and Programmable Exponent Function

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Round Horizontal Tank Function; Just Enter Diameter & Length

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Programmable Display, Function Keys & Digital Inputs

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Flanges for Wall or Pipe Mounting

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Explosion-Proof, IP68, NEMA 4X Die-Cast Aluminum Enclosure

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On-Board RS-485 Serial Communications Standard

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Modbus

RTU Communication Protocol Standard

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Four 3/4" NPT Threaded Conduit Openings (Two Plugs Installed)

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Pipe Mounting Kits

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Stainless Steel Tag Available

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3-Year Warranty

MeterView Pro

USB Install

Summary of Contents for ProtEX-MAX PD8-6060

Page 1: ...mming Software SunBright Display Standard Feature Great for Outdoor Applications Operating Temperature Range 40 to 60 C 40 to 140 F FM Approved as Explosion Proof Dust Ignition Proof Flame Proof CSA Certified as Explosion Proof Dust Ignition Proof Flame Proof ATEX and IECEx Certified as Flame Proof Input Power Options 85 265 VAC 90 265 VDC or 12 24 VDC 12 24 VAC Multi Pump Alternation Control Pass...

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Page 3: ...e repair or replacement of the defective unit See Warranty Information and Terms Conditions on www predig com for complete details Registered Trademarks All trademarks mentioned in this document are the property of their respective owners 2022 Precision Digital Corporation All rights reserved FREE MeterView Pro Programming Software The meter can be powered from the USB connection When using the US...

Page 4: ...r Supply Voltage Selection P P 27 Connections 27 Required Factory Wired Connection 27 PROVU Electronics Module Layout 28 USB Connection 28 Power Connections 29 Signal Connections 29 RS 485 Connections 30 RS 485 Multi Drop Connection 30 Digital I O Connections 31 F4 Digital Input Connections 31 Remote Programming 31 4 20 mA Output Connections 31 Analog Output Power Supply 31 Relay Connections 32 In...

Page 5: ...Pump Alternation Control Applications Altern 48 Setting Up the Interlock Relay Force On Feature 49 Scaling the 4 20 mA Analog Output Aout 50 Reset Menu reset 50 Manual Control Menu Contrl 50 Setting Up the Password pass 51 Protecting or Locking the Meter 51 Making Changes to a Password Protected Meter 51 Disabling Password Protection 51 Advanced Features Menu 52 Advanced Features Menu Display Mess...

Page 6: ... Figure 9 3 Wire Transmitters Powered by Internal Supply 29 Figure 10 Transmitter Powered by External Supply 29 Figure 11 Self Powered Transmitters 29 Figure 12 2 Wire Voltage Input Connections 29 Figure 13 3 Wire Voltage Input Connections 29 Figure 14 RS 485 Connection 30 Figure 15 Three Wire RS 485 Connection 30 Figure 16 Digital Input and Output Connections 31 Figure 17 F4 Digital Input Connect...

Page 7: ...l inputs and four digital outputs and RS 485 serial communications The four relays can be used for alarm indication or process control applications such as pump alternation control The 4 20 mA isolated output Modbus RTU serial communications and digital I O features make the ProtEX MAX an excellent addition to any system SafeTouch Buttons To make it possible to program and operate the ProtEX MAX i...

Page 8: ...roVu ProtEX MAX process meter for a level application using MeterView Pro PC based programming software predig com videos MVPro_Demo Connect to PC for Programming Learn how to connect a ProVu ProtEX MAX process meter to your PC and install free MeterView Pro programming software predig com videos PC_Connect 4 20 mA Connections This Tech Tips video shows how to make connections to power the transmi...

Page 9: ...h the 4 20 mA output option evident also in the above diagram The first thing you notice about the PD8 6060 is its modern looking rugged die cast aluminum housing with convenient mounting flanges Housed inside this enclosure is a dual line 6 digit display with high intensity LEDs that can be read in direct sunlight The PD8 6060 has two process input channels A B capable of accepting current 0 20 4...

Page 10: ...ly external power while programming your meter In addition to programming the software will also allow you to monitor and datalog a ProtEX MAX using your PC You can also generate and save programming files for later use Advanced Display Features Dual Line Makes All the Difference The ProtEX MAX has two red LED displays a main display 0 60 15 mm high and a second display 0 46 12 mm high Each displa...

Page 11: ... input This allows the display to be setup to display whatever variables are most valuable to the application Here are just a few examples Input Channels A B Both input channels are displayed with input A on the main display and input B on the second display as indicated by LEDs A B on the display The meter also toggles between the units for these inputs Math Function Inputs A B The main display s...

Page 12: ...rogrammed and operated without removing the cover and exposing the electronics in a hazardous area These buttons can be disabled for security by selecting the DISABLE setting on the NO CONTACT BUTTONS switch located on the back of the electronics module inside the enclosure Rugged Heavy Duty Enclosure The ProtEX MAX is housed in a rugged NEMA 4X 7 9 IP68 die cast aluminum enclosure designed to wit...

Page 13: ... Each tag comes with a stainless steel wire and lead seal for easy mounting wherever you need it Removable Screw Terminals Industrial applications require screw terminal connections for easy field wiring and the ProtEX MAX goes one step further in convenience by making them removable also Note The above photograph is representative of the back of the PD8 6060 in every regard except for the signal ...

Page 14: ... power 24 V 25 mA To use an external power supply instead of the internal power supply simply make connections to different terminals on the ProtEX MAX The following diagram illustrates how to wire the ProtEX MAX so it will power the transmitters Meter Powers 4 20 mA Output Not only can the ProtEX MAX power the 4 20 mA input signal but an additional power supply of 24 V 25 mA is provided with the ...

Page 15: ... enters the diameter and length of the tank and the meter does the rest Round Horizontal Tank Function Square Root Linearization The square root function is used to calculate flow measured with a differential pressure transmitter The flow rate is proportional to the square root of the differential pressure Scale the meter so that the low input signal e g 4 mA is equal to zero flow and the high inp...

Page 16: ... level transmitters and can be equipped with four relays it could be used to control and alternate two pumps in two different tanks as well as provide the 24 V to power the transmitters The illustration below shows how the relays control both the main and backup pumps to maintain the levels in tanks 1 and 2 Learn how to use the ProVu ProtEX MAX meter as an explosion proof pump controller See how t...

Page 17: ...rement and output functions including voltage current thermocouple and RTD PD9502 Low Cost Signal Generator The PD9502 is a low cost compact simple to use 4 20 mA or 0 10 VDC signal generator It can easily be set for 0 20 mA 4 20 mA 0 10 V or 2 10 V ranges Signal adjustment is made with a one turn knob A 15 27 VDC wall plug is provided with the instrument Optional USB power bank is available ...

Page 18: ...al inputs Non Volatile Memory All programmed settings are stored in non volatile memory for a minimum of ten years if power is lost Power Options 85 265VAC50 60Hz 90 265VDC 20Wmax 12 24 VDC 12 24 VAC 15 W max Powered over USB for configuration only Fuse Required external fuse UL Recognized 5 A max slow blow up to 6 meters may share one 5 A fuse Normal Mode Rejection Greater than 60 dB at 50 60 Hz ...

Page 19: ...e Exponent User selectable from 1 0001 to 2 9999 for open channel flow Low Flow Cutoff 0 1 to 999 999 0 disables cutoff function Point below at which display always shows zero Decimal Point Up to five decimal places or none d ddddd d dddd d ddd d dd d d or dddddd Calibration Range Input Range Minimum Span Input 1 2 4 20 mA 0 15 mA 10 V 0 10 V An error message will appear if the input 1 and input 2...

Page 20: ...5 C ambient 0 8 µA C max from 40 to 0 C ambient Note Analog output drift is separate from input drift Isolated Transmitter Power Supply Terminals I R 24 VDC 10 Isolated from the input at 500 V May be used to power the 4 20 mA output or other devices All models 25 mA max External Loop Power Supply 35 VDC maximum Output Loop Resistance Power supply Minimum Maximum 24 VDC 10 700 35 VDC external 100 1...

Page 21: ...SB 2 0 for programming only Standard USB A to USB Type B RS 485 to USB converter programming monitoring and data logging Configuration Configure meters one at a time Power USB port provides power to the meter DO NOT apply AC or DC power to the meter while the USB port is in use Compliance Information Electromagnetic Compatibility Emissions EN 55022 Class A ITE emissions requirements Radiated Emiss...

Page 22: ...60 C T5 40 C to 65 C Certificate number Sira 12ATEX1182 IECEx Ex d IIC T Gb Ex tb IIIC T90 C Db IP68 Ta 40 C to C T6 40 C to 60 C T5 40 C to 65 C Certificate Number IECEx SIR 12 0073 Special Conditions for Safe Use Use suitably certified and dimensioned cable entry device and or plug The equipment shall be installed such that the supply cable is protected from mechanical damage The cable shall not...

Page 23: ...cessed by opening the enclosure To access electrical connectors remove the 2 captive screws and then remove the electronics module Connectors are on the rear of the electronics module Unpacking Remove the meter from box Inspect the packaging and contents for damage Report damages if any to the carrier If any part is missing or the meter malfunctions please contact your supplier or the factory for ...

Page 24: ...g holes located in the cast in flanges In addition the internal electronic assembly can be rotated to allow the enclosure to be mounted in any position To mount the meter to a wall follow these instructions Prepare a section of wall approximately 7 x 8 5 178 mm x 216 mm for meter mounting by marking with a pencil the mounting holes shown in Figure 1 on the wall Select the appropriate mounting scre...

Page 25: ...This kit includes two U bolts the necessary hardware and is available in zinc plated steel PDA6848 and 316 stainless steel PDA6848 SS To mount the meter using a U Bolt kit follow these instructions Orient the groove on the back of the instrument with the pipe and secure it to the pipe with the two U bolts and hardware provided Vertical Pipe Mounting Horizontal Pipe Mounting ...

Page 26: ...terviewpro MeterView Pro Installation 1 Connect one end of the provided USB cable to the meter and the other end to the computer The computer will automatically install the driver software it needs to talk to the meter Follow the on screen instructions and allow sufficient time for the process to complete This can take a few minutes If the process is interrupted then it could leave the system in a...

Page 27: ...l state and local codes to prevent damage to the meter and ensure personnel safety Static electricity can damage sensitive components Observe safe handling precautions for static sensitive components Use proper grounding procedures codes If the instrument is installed in a high voltage environment and a fault or installation error occurs high voltage may be present on any lead or terminal Follow a...

Page 28: ...s PD8 6060 6H0 and PD8 6060 7H0 the upper set of connectors RELAYs MA OUT are not present Figure 5 PROVU Electronics Module Layout USB Connection Figure 6 USB Connection DO NOT disconnect the RJ45 M LINK connector cable Otherwise the instrument will not function properly The meter should only be connected to a computer while it is located in a safe area ...

Page 29: ... is performed through the programming buttons or MeterView Pro software Figure 8 2 Wire Transmitters Powered by Internal Supply Figure 9 3 Wire Transmitters Powered by Internal Supply Figure 10 Transmitter Powered by External Supply Figure 11 Self Powered Transmitters The current input is protected against current overload by an internal resettable fuse The display may or may not show a fault cond...

Page 30: ...meter must be provided with its own unique address The meter address Slave ID can be programmed between 1 and 247 The transmit delay can be set between 0 and 199 ms The parity can be set to even odd or none with 1 or 2 stop bits To change the meter address 1 Press and hold the Menu button for three seconds to access Advanced Features menu of the meter 2 Press Up arrow until Serial SEriaL menu is d...

Page 31: ...or to reset max min values See Function Keys Digital I O Available Settings on page 58 for a complete list of capabilities Figure 17 F4 Digital Input Connections Remote Programming The meter can be operated via the programming buttons or a remote control station with required approvals to be located in a hazardous area using the digital inputs and outputs 4 20 mA Output Connections Connections for...

Page 32: ...preventing power from flowing to the Control Relay and the load Figure 21 Interlock Connections Switching Inductive Loads The use of snubbers to suppress electrical noise is strongly recommended when switching inductive loads to prevent disrupting the microprocessor s operation The snubbers also prolong the life of the relay contacts Suppression can be obtained with resistor capacitor RC networks ...

Page 33: ...rView Pro or through the programming buttons After power and input signal connections have been completed and verified apply power to the meter LED Status Indicators LED State Indication 1 4 Steady Alarm condition based on set and reset points independent of relay status in certain configurations Available on all meter configurations including those without relays installed 1 4 Flashing Relay inte...

Page 34: ...s area These buttons can be disabled for security by selecting DISABLE on the switch labeled NO CONTACT BUTTONS located on the connector board To actuate a button press one finger to the glass directly over the marked button area Then retract finger more than three inches from the glass before pressing the next button When the cover is removed the four mechanical buttons located next to the sensor...

Page 35: ...ay to channel C math D Ab Display AB Alternate display of channel A B D AC Display AC Alternate display of channel A C Display Functions Messages Display Parameter Action Setting Description D BC Display BC Alternate display of channel B C D AbC Display ABC Alternate display of channel A B C D set1 Display set 1 Displays relay 1 through 4 set point D Hi A Display high A Display high value of chann...

Page 36: ...nore Ignore Ignore loop break condition Processed as a low signal condition On On Relay goes to alarm condition when loop break detected Off Off Relay goes to non alarm condition when loop break detected Aout Analog output Enter the Analog output scaling menu AOut 1 Aout channel Analog Output source channel Dis 1 Display 1 Program display 1 value Out 1 Output 1 Program output 1 value e g 4 000 mA ...

Page 37: ...rrow to select next digit and Up arrow to increment digit value The digit being changed is displayed brighter than the rest Press and hold Up to auto increment the display value If negative numbers are allowed the first digit position will include a negative symbol after the 9 Press the Enter button at any time to accept a setting or Menu button to exit without saving changes Setting Up the Meter ...

Page 38: ...Enter the display unit or custom tag that will be displayed if d unit is selected as the line 2 parameter See the Setting the Display Parameter Intensity dsplay flow chart on page 41 to access the display menu to show the unit or tag on display line 2 The engineering units or custom legends can be set using the following 7 segment character set Display Character Display Character 0 0 k K 1 1 l L 2...

Page 39: ...rization Linear The process inputs may be calibrated or scaled to any display value within the range of the meter The meter is set up at the factory for 2 point linear calibration Up to 32 linearization points may be selected See Multi Point Linearization Linear on page 55 for details Scaling the Meter SCalE The process inputs 4 20 mA 10 VDC can be scaled to display the process variables in engine...

Page 40: ...d following the calibration procedure The use of a calibrated signal source is strongly recommended to calibrate the meter Warm up the meter for at least 15 minutes before performing calibration to ensure specified accuracy Calibrating the Meter for Channel A CAL A Note Inputs for the above example are Input 1 4 00 mA Display 1 0 0 Gallons Input 2 20 00 mA Display 2 5000 0 Gallons Calibrating the ...

Page 41: ...l 7 Toggle between Channel units 8 Channel gross value no tare or toggle net tare and gross values 9 Modbus input 10 Off no display 11 Engineering units or custom legends After setting up the input and display press the Menu button to exit programming and skip the rest of the setup menu The displays can be set up to read channels A B or C toggle between A B B C A C A B C toggle between channels A ...

Page 42: ...time g Off relay state controlled by Interlock feature 3 Set point 4 Reset point 5 Fail safe operation a On enabled b Off disabled 6 Time delay a On delay 0 999 9 seconds b Off delay 0 999 9 seconds 7 Relay action for loss break of 4 20 mA input ignore on off Setting the Relay Assignment asSign Setting the Relay Action Operation of the relays is programmed in the Action menu The relays may be set ...

Page 43: ...each relay between 0 and 999 9 seconds The relays will transfer only after the condition has been maintained for the corresponding time delay The On time delay is associated with the set point The Off time delay is associated with the reset point Relay Action for Loss of 4 20 mA Input Loop Break The loop break feature is associated with the 4 20 mA input Each relay may be programmed to go to one o...

Page 44: ... Relay coil is energized in non alarm condition In case of power failure relay will go to alarm state Time Delay Operation The following graphs show the operation of the time delay function When the signal crosses the set point the On time delay timer starts and the relay trips when the time delay has elapsed If the signal drops below the set point high alarm before the time delay has elapsed the ...

Page 45: ...ampling Operation When the signal crosses the set point the relay trips and the sample time starts After the sample time has elapsed the relay resets The cycle repeats every time the set point is crossed going up for high alarms and going down for low alarms The sample time can be programmed between 0 1 and 5999 9 seconds ...

Page 46: ...and provide status indication for the following LED Status 1 Alarm 1 2 Alarm 2 3 Alarm 3 4 Alarm 4 The meter is supplied with four alarm points that include front panel LEDs to indicate alarm conditions This standard feature is particularly useful for alarm applications that require visual only indication The LEDs are controlled by the set and reset points programmed by the user When the display r...

Page 47: ... Off Off Latching Relay LatcH In this application the meter is set up for manual reset at any time Acknowledging the alarm even if the alarm condition is still present resets the relay and turns off the LED Manual reset any time Condition LED Relay Normal Off Off Alarm On On Ack Off Off Latching Relay with Clear Lt Clr In this application the meter is set up for manual reset only after the signal ...

Page 48: ...pump off Application 1 Pump Alternation Using Relays 1 2 1 Relays 1 and 2 are set up for pump alternation 2 Relays 3 and 4 are set up for low and high alarm indication Set and Reset Point Programming Relay Set Point Reset Point Function 1 30 000 10 000 Controls pump 1 2 35 000 5 000 Controls pump 2 3 4 000 9 000 Controls low alarm 4 40 000 29 000 Controls high alarm Pump Alternation Operation 1 Pu...

Page 49: ...lays for the interlock feature 1 Access the Setup Relay Action menu and set the action to off 2 In the Advanced features User menu program any of the digital inputs to Force On any of the internal relays 1 4 3 Connect a switch or dry contact between the 5V terminal and the corresponding digital input dI 1 to dI 4 terminal Interlock Relay Operation Example Relays 1 2 are configured to energize thei...

Page 50: ... on display values For further details see Setting Numeric Values on page 37 Analog Output Value for Loss of 4 20 mA Input Loop Break on page 57 Reset Menu reset The Reset menu is used to reset the maximum or minimum reading peak or valley reached by the process both may be reset at the same time by selecting reset high low rst HL The tare value used to zero the display may be reset by selecting r...

Page 51: ...utton is pressed Press the Enter button while the message is being displayed and enter the correct password to gain access to the menu After exiting the programming mode the meter returns to its password protected condition Disabling Password Protection To disable the password protection access the Password menu and enter the correct password twice as shown below The meter is now unprotected until...

Page 52: ...l A Select menu for channel A Advanced Features Menu Display Messages Display Parameter Action Setting Ch b Channel B Select menu for channel B Linear Linear Set meter for linear function and select number of linearization points No pts Number of points Set the number of linearization points default 2 Square Square root Set meter for square root extraction Prog E Programmable exponent Set meter fo...

Page 53: ...alibration Calibrate 4 20 mA current input internal reference source used for scaling the input C lo Current low Calibrate low current input e g 4 mA C Hi Current high Calibrate high current input e g 20 mA V CAL Voltage calibration Calibrate voltage input V Lo Voltage low Calibrate low voltage input e g 0 V V Hi Voltage high Calibrate high voltage input Advanced Features Menu Display Messages Dis...

Page 54: ... serial communications Notes 1 Refer to the ProtEX MAX Modbus Register Tables located at www predig com for details 2 Changes made to the Serial menu are initialized after the menu key is pressed or after navigating through the remainder of the serial parameters i e pass the t byte parameter When using more than one meter in a multi drop mode each meter must be provided with its own unique address...

Page 55: ...ble and the 32 point linearization of the meter For more information on how the Programmable Exponent Linearization feature works see the PD8 6262 manual Multi Point Linearization Linear Meters are set up at the factory for linear function with 2 point linearization Up to 32 linearization points can be selected for each channel under the linear function The multi point linearization can be used to...

Page 56: ... to display the volume in liters is to enter the dimensions in cm The meter automatically calculates the volume in liters Math Function nmath The Math menu is used to select the math function that will determine the channel C value These math functions are a combination of input channels A and B and will display when channel C is selected in the Display menu The following math functions are availa...

Page 57: ...k condition is detected in the 4 20 mA input loop Selecting Ignore causes the mA output to go to the minimum value Analog Output Calibration To perform the analog output calibration it is recommended to use a milliamp meter with a resolution of at least 0 1 µA to measure the output current The values saved internally during this procedure are used for scaling the 4 20 mA output in the Setup menu A...

Page 58: ...gned to enable relays Rly E is pressed Display Description d Hold Hold the current display value relay states and analog output momentarily while the function key or digital input is active The process value will continue to be calculated in the background D AbC Scrolls values for A B C when activated Keeps the last value for 10 seconds and then it returns to its assignment Values are displayed on...

Page 59: ...ding to the input setup Press Enter to start the calibration process Example of Internal Calibration for current input 5 The meter displays low input current message C lo Apply the low input signal and press Enter The display flashes for a moment while the meter is accepting the low input signal 6 After the display stops flashing a number is displayed with the leftmost digit brighter than the rest...

Page 60: ... These buttons can be disabled for security by selecting DISABLE on the switch labeled NO CONTACT BUTTONS located on the connector board To actuate a button press one finger to the glass directly over the marked button area Then retract finger more than three inches from the glass before pressing the next button When the cover is removed the four mechanical buttons located next to the sensors are ...

Page 61: ...l inputs are programmed identically to function keys F1 F2 and F3 The inputs are triggered with a contact closure to 5 in the case of digital inputs 1 4 or with an active high signal see Digital I O Connections on page 31 for details The F4 is triggered with a contact closure to COM or with an active low signal During operation digital inputs operate according to the way they are programmed in the...

Page 62: ... Press the Enter button to activate the LED Test The meter will cycle through all digits decimal points and relay indicators to enable the operator to check that all LEDs are functioning properly 4 Press the Enter button again to access the Information menu info or press the Menu button to return to Run Mode Determining Software Version To determine the software version of a meter 1 Go to the Diag...

Page 63: ...ion Act 1 Automatic Relay 1 set point Set 1 1 000 Relay 1 reset point RSt 1 0 500 Relay 2 assignment Ch A Channel A Factory Defaults User Settings Parameter Display Default Setting Relay 2 action Act 2 Automatic Relay 2 set point Set 2 2 000 Relay 2 reset point RSt 2 1 500 Relay 3 assignment Ch A Channel A Relay 3 action Act 3 Automatic Relay 3 set point Set 3 3 000 Relay 3 reset point RSt 3 2 500...

Page 64: ...al input F4 Acknowledge relays Digital input 1 DI 1 Menu Digital input 2 DI 2 Right arrow Digital input 3 DI 3 Up arrow Digital input 4 DI 4 Enter Digital output 1 DO 1 Alarm 1 Factory Defaults User Settings Parameter Display Default Setting Digital output 2 DO 2 Alarm 2 Digital output 3 DO 3 Alarm 3 Digital output 4 DO 4 Alarm 4 Password 1 Pass 1 000000 unlocked Password 2 Pass 2 000000 unlocked ...

Page 65: ... a value greater than zero Meter displays error message during calibration Error Check 1 Signal connections 2 Input selected in Setup menu 3 Minimum input span requirements Meter displays 1 999999 2 99999 Check 1 Input selected in Setup menu 2 Corresponding signal at Signal connector Display is unstable Check 1 Input signal stability and value 2 Display scaling vs input signal 3 Filter and bypass ...

Page 66: ...ted on device 3 Instrument address baud rate 4 Program address baud rate If both data status LEDs TX and RX are off when trying to communicate Remove all unnecessary cables and instruments from the bus Try getting the system to work with only one device to ease troubleshooting and then expand the system one device at a time Communications slow Increase the baud rate Random communication errors 1 I...

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Page 68: ...655 8990 www predig com LIM8 6060_F SFT039 Ver 4 010 up 04 22 Contact Precision Digital Technical Support Call 800 610 5239 or 508 655 7300 Fax 508 655 8990 Email support predig com Sales Support Call 800 343 1001 or 508 655 7300 Fax 508 655 8990 Email sales predig com Place Orders Email orders predig com For the latest version of this manual please visit www predig com ...

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