PRECISION DIGITAL Helios PD2-6100 Instruction Manual
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PRECISION DIGITAL Helios PD2-6100 Instruction Manual

Large display strain gauge meter
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Helios Large Display Strain Gauge Meter
Instruction Manual
• Large 1.80" Digits
• Dual-Line 6-Digit Display
• Readable from up to 100 Feet (30 Meters) Away
• Superluminous Sunlight Readable Display
• NEMA 4X, IP65 Rated Field Mountable Enclosure
• Operating Temperature Range of -40 to 65°C (-40 to 150°F)
• 15, 30, 150, 300 mV Unipolar Input Ranges
• ±15, ±25, ±150, ±250 mV Bipolar Input Ranges
• Selectable 5 or 10 VDC @350 mA Maximum Sensor Excitation
• Supports up to Twelve (12) 350 Ω Load Cells
• Capture or Programmable Tare Feature
• Max/Min or Peak/Valley Hold Feature
• Auto-Zero Feature Eliminates Zero Drift
• Input Power Options Include 85-265 VAC or 12-24 VDC
• 2 or 4 Relays + Isolated 4-20 mA Output
• Onboard USB & RS-485 Serial Communication Options
• Modbus
• Program the Meter from a PC with onboard USB and MeterView Pro
Precision Digital Corporation
Find Quality Products Online at:
®
RTU Communication Protocol Standard
GlobalTestSupply
www.
PD2-6100
USB Install
Strain Gauge
.com
sales@GlobalTestSupply.com

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Summary of Contents for PRECISION DIGITAL Helios PD2-6100

  • Page 1 • Onboard USB & RS-485 Serial Communication Options • Modbus ® RTU Communication Protocol Standard • Program the Meter from a PC with onboard USB and MeterView Pro Precision Digital Corporation GlobalTestSupply www. .com Find Quality Products Online at: sales@GlobalTestSupply.com...
  • Page 2 PD2-6100 Disclaimer The information contained in this document is subject to change without notice. Precision Digital makes no representations or warranties with respect to the contents hereof and specifically disclaims any implied warranties of merchantability or fitness for a particular purpose.

  • Page 3: Table Of Contents

    PD2-6100 Large Display Strain Gauge Meter Instruction Manual Table of Contents Table of Contents ............ 3 High Alarm Operation (Set > Reset) ...... 37 Low Alarm Operation (Set < Reset) ....... 37 Table of Figures ............3 High Alarm with Fail-Safe Operation (Set > Reset) Introduction..............

  • Page 4: Table Of Figures

    A fully loaded Helios PD2-6100 meter comes with four (4) SPDT relays, a 4 20 mA output, one 10 VDC sensor excitation, one 24 VDC power supplies, five (5) digital inputs and four (4) digital outputs, and onboard RS485 serial communications.

  • Page 5: Specifications

    PD2-6100 Large Display Strain Gauge Meter Instruction Manual Specifications Except where noted all specifications apply to operation at +25°C. Isolation 4 kV input/output-to-power line General 500 V input-to-output or output-to-P+ Display Main display: 1.8" (46 mm) high, red supply LEDs Overvoltage Installation Overvoltage Category II: 6 digits per line (-99999 to 999999), with...

  • Page 6: Relays

    Helios Large Display Strain Gauge Meter Instruction Manual PD2-6100 Auto When power is applied to the meter, Low-Flow 0-999999 (0 disables cutoff function) Initialization relays will reflect the state of the input to Cutoff the meter. Decimal Point Up to five decimal places or none: Isolated 4-20 mA Transmitter Output d.ddddd, d.dddd, d.ddd, d.dd, d.d, or dddddd...

  • Page 7: Digital Input & Output Terminal

    PD2-6100 Large Display Strain Gauge Meter Instruction Manual Digital Input & Output Terminal Source 10 mA maximum output current Current Channels 4 digital inputs & 4 digital outputs Sink Current 1.5 mA minimum input current Digital Input 3 to 5 VDC To be used as pull-up for digital inputs Logic High only.

  • Page 8: Safety Information

    Helios Large Display Strain Gauge Meter Instruction Manual PD2-6100 Safety Information Caution: Read complete instructions Warning: Risk of electric shock or prior to installation and operation of the personal injury. meter. Hazardous voltages exist within enclosure. Installation and service should be performed only by trained service personnel.

  • Page 9: Wall Mounting Instructions

    PD2-6100 Large Display Strain Gauge Meter Instruction Manual Wall Mounting Instructions The meter can be mounted to any wall using the four provided mounting holes. Note that the bottom mounting holes are located underneath the front door panel. To mount the meter to a wall, follow these instructions.

  • Page 10: Pipe Mounting Instructions

    Helios Large Display Strain Gauge Meter Instruction Manual PD2-6100 Pipe Mounting Instructions The meter can also be mounted to a pipe using the optional pipe mounting kit (PDA6260). This kit includes two mounting plates, two U-bolts, and the necessary nuts and bolts. To mount the meter to a pipe using the pipe mounting kit accessory, follow these instructions.

  • Page 11: Sensor Excitation Voltage Selection (Ex+, Ex-)

    PD2-6100 Large Display Strain Gauge Meter Instruction Manual Sensor Excitation Voltage Selection (EX+, EX-) All meters, including models equipped with the 12-24 VDC power option, are shipped from the factory configured to provide 10 VDC power for the sensor. If the sensor requires 5 VDC excitation, the switch labeled P+/P- must be configured accordingly. To access the voltage selection jumper: 1.

  • Page 12: Connectors Labeling

    The connectors’ label, affixed to the inside of the lower door panel, shows the location of all connectors available with requested configuration. Do not connect any equipment other than Precision Digital’s expansion modules, cables, or meters to the RJ45 M-LINK connector.

  • Page 13: Signal Connections

    PD2-6100 Large Display Strain Gauge Meter Instruction Manual Signal Connections Signal connections are made to a six-terminal connector labeled SIGNAL. The EX- (negative excitation) terminal is used to sense the sensor excitation voltage for ratiometric operation, when the sensor is powered externally.

  • Page 14: Figure 10. Strain Gauge Powered By Internal

    Helios Large Display Strain Gauge Meter Instruction Manual PD2-6100 Strain Gauge Connections The following figures show examples of strain gauge connections. There is a 5-position DIP switch (CONFIG) to set up the input ranges and ratiometric operation. NOTE: Refer to Switch Configuration starting on page 13 for proper switch positioning for the following wiring configurations.

  • Page 15: Shunt Calibration

    PD2-6100 Large Display Strain Gauge Meter Instruction Manual Notes • Two-wire mV signals: Connect positive to SG+ and negative to SG- • Four-wire transducer: Connect EX- to negative power transducer terminal. Figure 13. mV Transducer Input Connections Shunt Calibration The PD6100 is equipped with a means of simulating strain in a strain gauge bridge circuit, via an included shunt resistor in the meter.

  • Page 16: Switching Inductive Loads

    Figure 17. Low Voltage DC Loads Protection RC Networks Available from Precision Digital RC networks are available from Precision Digital and should be applied to each relay contact switching an inductive load. Part number: PDX6901. Note: Relays are de-rated to 1/14th HP (50 watts) with an inductive load.

  • Page 17: Figure 18. Rs-422 Or Rs-485 Wiring

    PD2-6100 Large Display Strain Gauge Meter Instruction Manual Installation Figure 18 shows the connection of a meter to a PC using the RS485 output connector and a PDA7485 RS-232 to RS-422/485 converter in an RS-422 network. Figure 19 shows the connection of several meters to a PC using a PDA7485 RS-232 to RS-422/485 converter in an RS-485 network.

  • Page 18: Figure 19. Rs-485 Two-Wire Multi-Drop Wiring

    Helios Large Display Strain Gauge Meter Instruction Manual PD2-6100 Figure 19. RS-485 Two-Wire Multi-Drop Wiring Notes: 1. Termination resistors are optional and values depend on the cable length and characteristic impedance. Consult the cable manufacturer for recommendations. 2. Refer to RS-232 to RS-485 Converter documentation for further details. 3.

  • Page 19: Digital I/O Connections

    PD2-6100 Large Display Strain Gauge Meter Instruction Manual Digital I/O Connections Digital inputs and outputs are provided in order to expand the functionality of the meter. Digital inputs are made via a push button or switch connection to the appropriate digital input connector block and the +5 VDC block.

  • Page 20: 4-20 Ma Output Connections

    Helios Large Display Strain Gauge Meter Instruction Manual PD2-6100 4-20 mA Output Connections Connections for the 4-20 mA transmitter output are made to the connector terminals labeled MA OUT. The 4-20 mA output may be powered internally or from an external power supply. Figure 24.

  • Page 21: Setup And Programming

    PD2-6100 Large Display Strain Gauge Meter Instruction Manual Setup and Programming The meter is factory calibrated prior to shipment to read in milliamps and volts depending on the input selection. The calibration equipment is certified to NIST standards. Overview There is a 5-position DIP switch used to set the meter input selection. See Figure 9 on page 13 to setup the switch.

  • Page 22: Programming Buttons And Status Led Indicators

    Helios Large Display Strain Gauge Meter Instruction Manual PD2-6100 Programming Buttons and Status LED Indicators The meter can be programmed using the buttons located behind the front door panel. Use the Menu button to enter or exit Programming Mode, the Up Arrow button to cycle through menu options, and the Enter button to select the menu item or option you want.

  • Page 23: Meterview ® Pro Software

    PD2-6100 Large Display Strain Gauge Meter Instruction Manual MeterView ® Pro Software The meter can also be programmed using the PC-based MeterView Pro software included with the meter. This software is can be installed on any Microsoft® Windows® (2000/XP/Vista/7/8/10) computer by connecting the meter’s onboard USB.

  • Page 24: Display Functions & Messages

    Helios Large Display Strain Gauge Meter Instruction Manual PD2-6100 Display Functions & Messages The meter displays various functions and messages during setup, programming, and operation. The following table shows the main menu functions and messages in the order they appear in the menu. Display Parameter Action/Setting Description...
  • Page 25 PD2-6100 Large Display Strain Gauge Meter Instruction Manual Display Parameter Action/Setting Description Alternate Set relay for pump alternation control Altern Sampling Set relay for sampling operation Sanmpl Disable relay and front panel status LED (Select Off to enable Interlock feature) Program set point 1 Set 1 Set 1...

  • Page 26: Main Menu

    Helios Large Display Strain Gauge Meter Instruction Manual PD2-6100 Main Menu The main menu consists of the most commonly used functions: Setup, Reset, Tare, Control, and Password. Press Menu button to • enter Programming Mode then press the Up arrow button to scroll main menu.

  • Page 27: Setting Up The Meter (Setup)

    PD2-6100 Large Display Strain Gauge Meter Instruction Manual Setting up the Meter (setup) The Setup menu is used to select: 1. Unipolar (e.g. 0-30 mV) or bipolar (e.g. ±25 mV) polarity, input range, ratiometric operation, and dual-scale feature 2. Engineering units 3.

  • Page 28: Setting The Input Signal (Input)

    Helios Large Display Strain Gauge Meter Instruction Manual PD2-6100 Setting the Input Signal (Input) Enter the Input menu to set up the input polarity, range, Ratiometric operation, and dual-scale feature. The meter is capable of accepting any signal from -250 to 250 mV in bipolar mode or up to 300 mV in unipolar mode.

  • Page 29: Setting The Input Units (Units)

    PD2-6100 Large Display Strain Gauge Meter Instruction Manual Setting the Input Units (units) Enter the pre-defined engineering unit or custom unit. The pre-defined units have automatic conversion factors. This unit will be displayed if d unit is selected as the lower display parameter. See the flow chart on page 34 to access the display menu to show the unit on the lower display.

  • Page 30: Setting The Input Units Or Custom Tags (Units)

    Helios Large Display Strain Gauge Meter Instruction Manual PD2-6100 Setting the Input Units or Custom Tags (units) Enter the input unit or custom tag that will be displayed if d unit is selected as the little display parameter. See the flow chart on page 34 to access the display menu to show the unit or tag on the little display.

  • Page 31: Programming The Meter (Prog)

    PD2-6100 Large Display Strain Gauge Meter Instruction Manual Programming the Meter (prog) The Program menu contains the Scale and the Calibrate menus. For strain gauge and load cell applications it is recommended to calibrate the meter using the sensor as the input and with ratiometric operation enabled to compensate for small variation in the excitation voltage.
  • Page 32 Helios Large Display Strain Gauge Meter Instruction Manual PD2-6100 Calibrating the Meter with Strain Gauge/Load Cell ( Note: To scale the meter without a Scaling the signal source refer to Meter (SCALE) , page 33. The meter can be calibrated to display the process variable in engineering units by applying the appropriate input signal and following the calibration procedure.
  • Page 33 PD2-6100 Large Display Strain Gauge Meter Instruction Manual Scaling the Meter ( SCALE The strain gauge input (e.g. 0-100 mV) can be scaled to display the process variable in engineering units. A signal source is not needed to scale the meter; simply program the inputs and corresponding display values.

  • Page 34: Setting The Display Parameter & Intensity (Dsplay)

    Helios Large Display Strain Gauge Meter Instruction Manual PD2-6100 Setting the Display Parameter & Intensity (dsplay) The main display (line 1) can be programmed to display: 1. Process value 1 (PV1) 2. Process value 2 (PV2) 3. Percent of PV1 (PCT) 4.

  • Page 35: Setting The Relay Operation (Relay)

    PD2-6100 Large Display Strain Gauge Meter Instruction Manual Setting the Relay Operation (relay) This menu is used to set up the operation of the relays. During setup, the relays do not follow the input and they will remain in the state found prior to entering the Relay menu.

  • Page 36: Setting The Relay Action

    Helios Large Display Strain Gauge Meter Instruction Manual PD2-6100 Setting the Relay Action Operation of the relays is programmed in the Action menu. The relays may be set up for any of the following modes of operation: 1. Automatic reset (non-latching) 2.

  • Page 37: Relay And Alarm Operation Diagrams

    PD2-6100 Large Display Strain Gauge Meter Instruction Manual Relay and Alarm Operation Diagrams The following graphs illustrate the operation of the relays, status LEDs, and ACK button. High Alarm Operation (Set > Reset) Low Alarm Operation (Set < Reset) For Manual reset mode, ACK can be pressed For Manual reset mode, ACK can be pressed anytime to turn "off"...

  • Page 38: High Alarm With Fail-Safe Operation (Set > Reset)

    Helios Large Display Strain Gauge Meter Instruction Manual PD2-6100 High Alarm with Fail-Safe Operation Low Alarm with Fail-Safe Operation (Set > Reset) (Set < Reset) Note: Relay coil is energized in non-alarm condition. Note: Relay coil is energized in non-alarm condition. In case of power failure, relay will go to alarm In case of power failure, relay will go to alarm state.

  • Page 39: Relay Sampling Operation

    PD2-6100 Large Display Strain Gauge Meter Instruction Manual Relay Sampling Operation Input Reset Sample Sample Sample Time Time Time Relay 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.

  • Page 40: Relay Operation Details

    Helios Large Display Strain Gauge Meter Instruction Manual PD2-6100 Relay Operation Details Overview The relay capabilities of the meter expand its usefulness beyond simple indication to provide users with alarm and control functions. These capabilities include front panel alarm status LEDs as well as either 2 or 4 internal relays.

  • Page 41: Latching And Non-Latching Relay Operation

    PD2-6100 Large Display Strain Gauge Meter Instruction Manual Latching and Non-Latching Relay Operation Relay terminology for following tables The relays can be set up for latching (manual reset) or non-latching (automatic reset) operation. Terminology Relay Condition Alarm (Tripped) The On and Off terminology does not refer to the status of Normal (Reset) the relay’s coil, which depends on the fail-safe mode Acknowledged...

  • Page 42: Acknowledging Relays

    Helios Large Display Strain Gauge Meter Instruction Manual PD2-6100 Acknowledging Relays There are two ways to acknowledge relays programmed for manual reset: 1. Via the programmable front panel function keys F1-F3 (Default: F3 assigned to ACK). 2. Remotely via a normally open pushbutton wired across one of the digital inputs and the +5 V terminals on the digital I/O terminal, or using the F4 digital input, which is triggered with a contact closure to COM, or with an active low signal (see page 19).
  • Page 43 PD2-6100 Large Display Strain Gauge Meter Instruction Manual Application #2: Pump Alternation Using Relays 3 & 4 1. Relays 1 and 2 are set up for low Set and Reset Point Programming and high alarm indication. Relay Set Point Reset Point Function 2.

  • Page 44: Setting Up The Interlock Relay (Force On) Feature

    Helios Large Display Strain Gauge Meter Instruction Manual PD2-6100 Setting up the Interlock Relay (Force On) Feature Relays 1-4 can be set up as interlock relays. To set up the relays for the interlock feature: 1. Access the Setup – Relay – Action menu and set the action to off. 2.

  • Page 45: Scaling The 4-20 Ma Analog Output (Aout)

    PD2-6100 Large Display Strain Gauge Meter Instruction Manual Scaling the 4-20 mA Analog Output (Aout) The 4-20 mA analog output can be scaled to provide a 4-20 mA signal for any display range selected. No equipment is needed to scale the analog output; simply program the display values to the corresponding mA output signal.

  • Page 46: Reset Menu (Reset)

    Helios Large Display Strain Gauge Meter Instruction Manual PD2-6100 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 “reset tare”...

  • Page 47: Setting Up The Password (Pass)

    PD2-6100 Large Display Strain Gauge Meter Instruction Manual Setting up the Password (pass) The Password menu is used for programming three levels of security to prevent unauthorized changes to the programmed parameter settings. Pass 1: Allows use of function keys and digital inputs Pass 2: Allows use of function keys, digital inputs and editing set/reset points Pass 3: Restricts all programming, function keys, and digital inputs.

  • Page 48: Making Changes To A Password Protected Meter

    Helios Large Display Strain Gauge Meter Instruction Manual PD2-6100 Making Changes to a Password Protected Meter If the meter is password protected, the meter will display the message Locd (Locked) when the Menu button is pressed. Press the Enter button while the message is being displayed and enter the correct password to gain access to the menu.

  • Page 49: Advanced Features Menu

    PD2-6100 Large Display Strain Gauge Meter Instruction Manual Advanced Features Menu To simplify the setup process, functions not needed for most applications are located in the Advanced Features menu. Press and hold the Menu button for three seconds to access the advanced features of the meter. Advanced Features Menu &...
  • Page 50 Helios Large Display Strain Gauge Meter Instruction Manual PD2-6100 Display Parameter Action/Setting Set meter for round horizontal tank volume calculation Round horizontal tank Calculate volume in gallons Dimension Inch Dimension Calculate volume in liters Enter the tank’s diameter in inches Diameter diamr Enter the tank’s length in inches...

  • Page 51: Noise Filter (Filter)

    RS-232, or RS-485 option is required; see Ordering Information on page 4 for details. Do not connect any equipment other than Precision Digital’s expansion modules, cables, or meters to the RJ45 M-LINK connector. Otherwise damage will occur to the equipment and the meter.

  • Page 52: Signal Input Conditioning (Functn)

    Helios Large Display Strain Gauge Meter Instruction Manual PD2-6100 Signal Input Conditioning (Functn) The Function menu is used to select the signal input conditioner applied to the input: linear, square root, programmable exponent, or round horizontal tank volume calculation. The multi-point linearization is part of the linear function selection.

  • Page 53: Low Cutoff (Cutoff)

    PD2-6100 Large Display Strain Gauge Meter Instruction Manual increments less than the auto-zero value, will not register on the meter (example: dust on a load cell or sensor drift over time). Low Cutoff (CutofF) The low-flow cutoff feature allows the meter to be programmed so that the often-unsteady output from a differential pressure transmitter, at low flow rates, always displays zero on the meter.

  • Page 54: Tare (Tare)

    Helios Large Display Strain Gauge Meter Instruction Manual PD2-6100 Function Keys & Digital I/O Available Settings Refer to the following table for descriptions of each available function key or digital I/O setting. Display Description Display Description Display maximum display value on Reset the stored maximum display Ln2 Hi Rst Hi...

  • Page 55: Internal Source Calibration (Ical)

    PD2-6100 Large Display Strain Gauge Meter Instruction Manual Internal Source Calibration (ICAL) The meter is factory calibrated prior to shipment to read in milliamps and volts depending on the input selection. The calibration equipment is certified to NIST standards. The use of calibrated signal sources is necessary to calibrate the internal source of the meter. The meter’s internal source is what allows the user to scale the meter without applying a signal.

  • Page 56: Meter Operation

    Helios Large Display Strain Gauge Meter Instruction Manual PD2-6100 Error Message ( Error An error message indicates that the calibration or scaling process was not successful. The error message might be caused by any of the following conditions: 1. Input signal is not connected to the proper terminals, or it is connected backwards. 2.

  • Page 57: Function Key Operation

    PD2-6100 Large Display Strain Gauge Meter Instruction Manual Function Key Operation During operation, the programmable function keys operate according to the way they have been programmed in the Advanced Features – User menu. The table on the previous page shows the factory default settings for F1, F2, and F3. Digital Input Operation Five (5) digital inputs, F4-F8, come standard on the meter.

  • Page 58: Troubleshooting

    Helios Large Display Strain Gauge Meter Instruction Manual PD2-6100 Troubleshooting Due to the many features and functions of the meter, it’s possible that the setup of the meter does not agree with what an operator expects to see. If the meter is not working as expected, refer to the Diagnostics menu and recommendations below.

  • Page 59: Factory Defaults & User Settings

    PD2-6100 Large Display Strain Gauge Meter Instruction Manual Factory Defaults & User Settings The following table shows the factory setting for most of the programmable parameters on the meter. Parameter Display Default Setting Parameter Display Default Setting On delay relay 1 0.0 sec Input type Polar = Uni...

  • Page 60: Troubleshooting Tips

    Helios Large Display Strain Gauge Meter Instruction Manual PD2-6100 Troubleshooting Tips Symptom Check/Action No display at all Check power at power connector Not able to change setup or Meter is password-protected, enter correct six-digit password to programming, Locd is displayed unlock Check: Signal connections...

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