Precision Digital PD6100 User Manual

Page 1

Strain Gauge, Load Cell & mV Meter

PD6100 Instruction Manual

 15, 30, 150, 300 mV Unipolar Input Ranges  ±15, ±25, ±150, ±250 mV Bipolar Input Ranges  Selectable 5 or 10 VDC Sensor Excitation  Supports up to Twelve (12) 350  Load Cells

(Minimum Load Resistance of 28 )

 Capture or Programmable Tare Feature  Max/Min or Peak/Valley Hold Feature  Ratiometric Operation  Large Dual-Line 6-Digit Display, 0.60" & 0.46"  Dual-Scale Feature – Single Input  Rounding Function 1, 2, 5, 10, 20, 50, or 100  Auto-Zero Feature Eliminates Zero Drift  Programmable Display & Function Keys  32-Point Linearization  NEMA 4X, IP65 Front  Universal 85-265 VAC, or 12/24 VDC Input Power Models  2 or 4 Relays + Isolated 4-20 mA Output Options  External 4-Relay & Digital I/O Expansion Modules  USB, RS-232, & RS-422/485 Serial Communication Options  Modbus  Configure, Monitor, and Datalog from a PC with

Free MeterView

RTU Communication Protocol Standard

Pro Software

PRECISION DIGITAL CORPORATION

89 October Hill Road • Holliston MA 01746 USA Tel (800) 343-1001 • Fax (508) 655-8990

www.predig.com

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Model PD6100 Strain Gauge/Load Cell Meter Instruction Manual

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.

Warning!

CAUTION: Read complete

instructions prior to installation and operation of the meter.

This product not recommended for life support applications or applications where malfunctioning could result in personal injury or property loss. Anyone using this product for such applications does so at his/her own risk. Precision Digital Corporation shall not be held liable for damages resulting from such improper use.

WARNING: Risk of electric shock or personal injury.

Limited Warranty

Precision Digital Corporation warrants this product against defects in material or workmanship for the specified period under “Specifications” from the date of shipment from the factory. Precision Digital’s liability under this limited warranty shall not exceed the purchase value, repair, or replacement of the defective unit.

Registered Trademarks

PROVU® and MeterView® Pro are registered trademarks of Precision Digital Corporation. All other trademarks mentioned in this document are the property of their respective owners.

www.predig.com

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Model PD6100 Strain Gauge/Load Cell Meter Instruction Manual

Table of Contents

INTRODUCTION ------------------------------------------------------------ 6 ORDERING INFORMATION --------------------------------------------- 7 SPECIFICATIONS ---------------------------------------------------------- 8

General ------------------------------------------------------------------------------- 8 Strain Gauge Input ------------------------------------------------------------- 10 Relays ------------------------------------------------------------------------------ 10 Isolated 4-20 mA Transmitter Output ------------------------------------ 11 Modbus® RTU Serial Communications ---------------------------------- 12

COMPLIANCE INFORMATION ---------------------------------------- 12

Safety ------------------------------------------------------------------------------- 12 Electromagnetic Compatibility --------------------------------------------- 13

SAFETY INFORMATION ------------------------------------------------ 14 INSTALLATION ------------------------------------------------------------ 14

Unpacking ------------------------------------------------------------------------- 14 Panel Mounting Instructions ------------------------------------------------ 14

Mounting Dimensions ------------------------------------------------------- 16

Configuration for 12 or 24 VDC Input Power Option ---------------- 17 Sensor Excitation Voltage Selection (EX+, EX-) --------------------- 18 Connections ---------------------------------------------------------------------- 18

Connectors Labeling --------------------------------------------------------- 19 Power Connections ---------------------------------------------------------- 19 Signal Connections ---------------------------------------------------------- 20

Switch Configuration ---------------------------------------------------------- 20

Shunt Calibration ------------------------------------------------------------- 23 Modbus RTU Serial Communications ----------------------------------- 24 Relay Connections ----------------------------------------------------------- 24 Switching Inductive Loads -------------------------------------------------- 25 4-20 mA Output Connections ---------------------------------------------- 26 Analog Output Power Supply ---------------------------------------------- 26 F4 Digital Input Connections ----------------------------------------------- 26 External Relays & Digital I/O Connections ----------------------------- 27 Interlock Relay Feature ----------------------------------------------------- 28

SETUP AND PROGRAMMING ---------------------------------------- 29

Front Panel Buttons and Status LED Indicators --------------------- 30 Display Functions & Messages -------------------------------------------- 31 Setting Numeric Values ------------------------------------------------------ 34 Main Menu ------------------------------------------------------------------------ 35

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Model PD6100 Strain Gauge/Load Cell Meter Instruction Manual

Setting Up the Meter (setup) ------------------------------------------------ 36

Setting the Input Signal (Input) ------------------------------------------ 37 Setting the Input Units (units) -------------------------------------------- 39 Setting the Input Units or Custom Tags (units) ---------------------- 40 Programming the Meter (prog) ------------------------------------------- 42

Program Menu for Single Scale Process --------------------------- 42 Program Menu for Dual-Scale Applications ------------------------ 42

Calibrating the Meter with Strain Gauge/Load Cell (Cal) ---------- 43

Multi-Point Calibration & Scaling -------------------------------------- 43 MeterView® Pro Software ----------------------------------------------- 44 Scaling the Meter (SCALE) ---------------------------------------------- 44

Dual-Scale Application --------------------------------------------------- 45 Setting the Display Parameter & Intensity (dsplay) ----------------- 47 Display Setup Menu --------------------------------------------------------- 48

Setting the Relay Operation (relay) ------------------------------------- 49

Setting the Relay Action ---------------------------------------------------- 50 Programming Set and Reset Points ------------------------------------- 51 Setting Fail-Safe Operation ------------------------------------------------ 51 Programming Time Delay -------------------------------------------------- 51

Relay and Alarm Operation Diagrams ----------------------------------- 52

High Alarm Operation (Set > Reset) ------------------------------------- 52 Low Alarm Operation (Set < Reset) -------------------------------------- 53 High Alarm with Fail-Safe Operation (Set > Reset) ------------------ 54 Low Alarm with Fail-Safe Operation (Set < Reset) ------------------- 55 Pump Alternation Control Operation ------------------------------------- 56 Relay Sampling Operation ------------------------------------------------- 57 Time Delay Operation ------------------------------------------------------- 58

Relay Operation Details ------------------------------------------------------ 59

Overview ------------------------------------------------------------------------ 59 Relays Auto Initialization ---------------------------------------------------- 59 Fail-Safe Operation ---------------------------------------------------------- 59 Front Panel LEDs ------------------------------------------------------------- 60 Latching and Non-Latching Relay Operation -------------------------- 60 Non-Latching Relay (Auto) ------------------------------------------------- 61 Non-Latching Relay (A-man) -------------------------------------------- 61 Latching Relay (LatcH) ----------------------------------------------------- 61 Latching Relay (Lt-Clr) ---------------------------------------------------- 62 Acknowledging Relays ------------------------------------------------------ 62 Pump Alternation Control Applications (Altern) --------------------- 63 Setting Up the Interlock Relay (Force On) Feature ------------------ 66

Scaling the 4-20 mA Analog Output (Aout) ---------------------------- 67 Setting Up the Password (pass) ------------------------------------------- 68



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Model PD6100 Strain Gauge/Load Cell Meter Instruction Manual

Protecting or Locking the Meter ------------------------------------------- 68 Making Changes to a Password Protected Meter -------------------- 69 Disabling Password Protection -------------------------------------------- 69

Reset Menu (reset) ------------------------------------------------------------ 70 Tare Menu (Tare) --------------------------------------------------------------- 70

Tare Functionality (tare) --------------------------------------------------- 70

Control Menu (Contrl) -------------------------------------------------------- 71 Advanced Features Menu ---------------------------------------------------- 71

Advanced Features Menu & Display Messages ---------------------- 72 Noise Filter (filter) -------------------------------------------------------- 75 Noise Filter Bypass (bypass) ---------------------------------------------- 75 Rounding Feature (round) ------------------------------------------------- 75 Modbus RTU Serial Communications (serial) ---------------------- 76 Select Menu (SElect) ------------------------------------------------------- 77 Signal Input Conditioning (Functn) -------------------------------------- 77 Auto-Zero (Auto 0) ---------------------------------------------------------- 78 Low-Flow Cutoff (CutofF) -------------------------------------------------- 79 Analog Output Programming (AoutPr) ---------------------------------- 79 Programmable Function Keys User Menu (user) -------------------- 80 Internal Source Calibration (ICAL) --------------------------------------- 81 Error Message (error) ------------------------------------------------------ 83 Meter Copy Function (Copy) ----------------------------------------------- 84

Copy Function Requirements ------------------------------------------ 84

METER OPERATION ----------------------------------------------------- 85

Front Panel Buttons Operation -------------------------------------------- 85 Function Keys Operation ---------------------------------------------------- 85 Maximum/Minimum Readings ---------------------------------------------- 86

TROUBLESHOOTING ---------------------------------------------------- 87

Diagnostics Menu (diag) ----------------------------------------------------- 87

Determining Software Version -------------------------------------------- 87

Reset Meter to Factory Defaults ------------------------------------------- 88

Factory Defaults & User Settings ----------------------------------------- 89

Troubleshooting Tips (Including FAULT & ERROR Messages) -------- 92 Alphabetical List of Display Functions & Messages --------------- 93

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Model PD6100 Strain Gauge/Load Cell Meter Instruction Manual

Table of Figures

Figure 1. 1/8 DIN Panel Cutout Dimensions ..................................... 15

Figure 2. Panel Mounting Details ...................................................... 15

Figure 3. Meter Dimensions - Side View ........................................... 16

Figure 4. Meter Dimensions - Top View ............................................ 16

Figure 5. Jumper Configuration for 12/24 VDC Input Power .......... 17

Figure 6. Sensor Excitation Voltage Selection ................................ 18

Figure 7. Connector Labeling for Fully Loaded PD6100 ................. 19

Figure 8. Power Connections ............................................................ 19

Figure 9. Strain Gauge Configuration Switch .................................. 20

Figure 10. Strain Gauge Powered by Internal Supply ..................... 22

Figure 11. Strain Gauge Powered by External Supply .................... 23

Figure 12. mV Transducer Input Connections ................................. 23

Figure 13. Shunt Resistor .................................................................. 24

Figure 14. Relay Connections ........................................................... 24

Figure 15. AC and DC Loads Protection ........................................... 25

Figure 16. Low Voltage DC Loads Protection .................................. 25

Figure 17. 4-20 mA Output Connections .......................................... 26

Figure 18. F4 Digital Input Connections ........................................... 26

Figure 19. Expansion Modules & DIN Rail Mounting Kit ................. 27

Figure 20. External Relays Module Connections ............................. 27

Figure 21. Digital I/O Module Connections ....................................... 28

Figure 22. Interlock Connections ...................................................... 28

Figure 23. Acknowledge Relays with Digital Input .......................... 62

INTRODUCTION

The PROVU® PD6100 is a multipurpose, easy to use digital strain gauge & load cell meter ideal for weighing and force measurement applications. With a max current of 350 mA at 10 V, it can support up to twelve (12) 350  load cells (minimum load resistance of 28 ), making it ideal for multipoint weight measurement applications. It accepts mV input signals up to 300 mV. Three of the front panel buttons can be custom-programmed for a specific operation. The mV input can be scaled to display the process in two different scales; for example pounds on the upper display and gallons on the lower display.

The basic model includes an isolated 5 or 10VDC Sensor power supply that can be used to power the input Sensor or 24 VDC for other devices. An additional isolated 24 VDC power supply is included with the 4-20 mA output option. A digital input is standard.

A fully loaded PD6100 meter has the following: four SPDT relays, 4-20 mA output, one 10 VDC sensor excitation, and one 24 VDC power supply. The PD6100 capabilities may be enhanced by adding the following external expansion modules: four SPST relays – creating an eight-relay process meter, two digital I/O modules with four inputs and four outputs each, and USB, RS-232 or RS-485 communication adapters.

The eight relays can be used for alarm indication or process control, such as pump alternation control. The 4-20 mA isolated output, Modbus RTU serial communications, and digital I/O options make the PD6100 an excellent addition to any system.

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Model PD6100 Strain Gauge/Load Cell Meter Instruction Manual

ORDERING INFORMATION

Standard Models

85-265 VAC Model

PD6100-6R0 PD6100-7R0 No options PD6100-6R2 PD6100-7R2 2 relays (PD1102*) PD6100-6R3 PD6100-7R3 4-20 mA output (PD1103*) PD6100-6R4 PD6100-7R4 4 relays (PD1104*) PD6100-6R5 PD6100-7R5 2 relays & 4-20 mA output (PD1105*) PD6100-6R7 PD6100-7R7 4 relays & 4-20 mA output (PD1107*) *Model number for replacement option card.

SunBright Display Models

85-265 VAC Model

PD6100-6H0 PD6100-7H0 No options PD6100-6H2 PD6100-7H2 2 relays (PD1102*) PD6100-6H3 PD6100-7H3 4-20 mA output (PD1103*) PD6100-6H4 PD6100-7H4 4 relays (PD1104*) PD6100-6H5 PD6100-7H5 2 relays & 4-20 mA output (PD1105*) PD6100-6H7 PD6100-7H7 4 relays & 4-20 mA output (PD1107*) *Model number for replacement option card.

Accessories

Model Description

PDA1002 DIN rail mounting kit for two expansion modules PDA1004 4 SPST (Form A) relays PDA1044 4 digital inputs & 4 digital outputs (2 may be connected) PDA1200 Meter copy cable PDA1232 RS-232 serial adapter PDA1485 RS-485 serial adapter PDA7485-I RS-232 to RS-422/485 isolated converter PDA7485-N RS-232 to RS-422/485 non-isolated converter PDA8008 USB serial adapter PDA8232-N USB to RS-232 non-isolated converter PDA8485-I USB to RS-422/485 isolated converter PDA8485-N USB to RS-422/485 non-isolated converter PDX6901

12/24 VDC Model

Suppressor (snubber): 0.01 µF/470 , 250 VAC

Options Installed

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Model PD6100 Strain Gauge/Load Cell Meter Instruction Manual

SPECIFICATIONS

Except where noted all specifications apply to operation at +25°C.

General

DISPLAY Upper display: 0.60" (15 mm) high, red LEDs

DISPLAY INTENSITY

DISPLAY UPDATE RATE

OVERRANGE UNDERRANGE DISPLAY

ASSIGNMENT

UNITS lb, kg, ounce, gram, ton, metric ton (tonne), custom units. PROGRAMMING

METHODS NOISE FILTER Programmable from 2 to 199 (0 will disable filter) FILTER BYPASS Programmable from 0.1 to 99.9% of calibrated span ROUNDING Select 1, 2, 5, 10, 20, 50, or 100

RECALIBRATION All ranges are calibrated at the factory. Recalibration is

MAX/MIN DISPLAY

PASSWORD

NON-VOLATILE MEMORY

POWER OPTIONS

FUSE Required external fuse: UL Recognized, 5 A max, slow

Lower display: 0.46" (12 mm) high, red LEDs 6 digits each (-99999 to 999999), with lead zero blanking

Eight user selectable intensity levels

5/second (200 ms)

Display flashes

The displays may be assigned to PV1, PV2, PCT, max & min, set points, PV & units, units (lower display only), net & gross weight, Modbus input, and display millivolts.

Four front panel buttons, digital inputs, PC and MeterView Pro software, Modbus registers, or cloning using Copy function.

(e.g. rounding = 10, value = 123.45, display = 123.50).

recommended at least every 12 months.

Max/min readings reached by the process are stored until reset by the user or until power to the meter is cycled.

Three programmable passwords restrict modification of programmed 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.

All programmed settings are stored in non-volatile memory for a minimum of ten years if power is lost.

85-265 VAC 50/60 Hz, 90-265 VDC, 20 W max or jumper selectable 12/24 VDC  10%, 15 W max

blow; up to 6 meters may share one 5 A fuse

999999

-99999

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Model PD6100 Strain Gauge/Load Cell Meter Instruction Manual

ISOLATED SENSOR POWER SUPPLY

NORMAL MODE REJECTION

ISOLATION 4 kV input-to-power line

OVERVOLTAGE CATEGORY

ENVIRONMENTAL ProVu Series (PD6100):

MAX POWER DISSIPATION

CONNECTIONS Removable screw terminal blocks accept 12 to 22 AWG

ENCLOSURE 1/8 DIN, high impact plastic, UL 94V-0, color: black MOUNTING 1/8 DIN panel cutout required:

TIGHTENING TORQUE

OVERALL DIMENSIONS

Terminals P+ & P-: 10 VDC or 5 VDC  10%.12/24 VDC powered models selectable for 24 (should not be used for strain gauge/load cell), 10, or 5 VDC supply (internal jumper, see Sensor Excitation Voltage Selection on page 18). ProVu Series (PD6100):

85-265 VAC models rated @ 200 mA max, 12/24 VDC powered models rated @ 350 mA max for 5 or 10 VDC supply, @ 100 mA max for 24 VDC supply.

ProtEX-MAX (PD8 Series): All models transmitter supply rated @ 25mA max.

Note: Do not use 24 VDC to power strain gauge bridge

Greater than 60 dB at 50/60 Hz

500 V input-to-output (powered by external supply)

Installation Overvoltage Category II: Local level with smaller transient overvoltages than Installation Overvoltage Category III.

Operating temperature range: -40 to 65°C Storage temperature range: -40 to 85°C Relative humidity: 0 to 90% non-condensing

ProtEX-MAX (PD8 Series): T6 Class operating temperature range Ta = -40 to 60°C T5 Class operating temperature range Ta = -40 to 65°C See LIM8 ProtEX-MAX instruction manual for additional

details.

ProtEX-MAX (PD8 Series): Maximum power dissipation limited to 15.1 W. See LIM8 ProtEX-MAX instruction manual for additional details.

wire, RJ45 for external relays, digital I/O, and serial communication adapters.

3.622" x 1.772" (92 mm x 45 mm) Two panel mounting bracket assemblies are provided.

Screw terminal connectors: 5 lb-in (0.56 Nm)

4.68" x 2.45" x 5.64" (119 mm x 62 mm x 143 mm) (W x H x D)

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Model PD6100 Strain Gauge/Load Cell Meter Instruction Manual

WEIGHT 9.5 oz (269 g) WARRANTY 3 years parts & labor

Strain Gauge Input

INPUTS Field selectable: 0-15, 0-30, 0-150, 0-300 mV,

ACCURACY ±0.03% of calibrated span ±1 count

MINIMUM LOAD RESISTANCE

MAXIMUM EXCITATION CURRENT

TEMPERATURE DRIFT

FUNCTIONS Linear with multi-point linearization MULTI-POINT

LINEARIZATION LOW-FLOW

CUTOFF DECIMAL POINT Up to five decimal places or none:

CALIBRATION RANGE

INPUT IMPEDANCE

±15, ±25, ±150, ±250 mV, or Modbus PV (Slave)

28  @ 5 V or 10 V

350 mA @ 5 V or 10 V

0.002% of calibrated span/C max from 0 to 65C ambient,

0.005% of calibrated span/C max from -30 to 0C ambient

2 to 32 points for PV or PV1 2 to 8 points for PV2 (Dual-scale feature)

0-999999 (0 disables cutoff function)

d.ddddd, d.dddd, d.ddd, d.dd, d.d, or dddddd

Input Range

15 mV 0.2 mV 25 mV, 30 mV 0.4 mV 150 mV 2.0 mV 250 mV, 300 mV 4.0 mV

An Error message will appear if the input 1 and input 2 signals are too close together.

Strain Gauge Bridge: Greater than 10 M mV Source: 200 k

Minimum Span Input 1 & Input 2

Relays

RATING 2 or 4 SPDT (Form C) internal and/or 4 SPST (Form A)

NOISE SUPPRESSION

external; rated 3 A @ 30 VDC and 125/250 VAC resistive load; 1/14 HP (≈ 50 W) @ 125/250 VAC for inductive loads

Noise suppression is recommended for each relay contact switching inductive loads; see page 25 for details.

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Model PD6100 Strain Gauge/Load Cell Meter Instruction Manual

DEADBAND 0-100% of span, user programmable HIGH OR LOW

ALARM RELAY

OPERATION

RELAY RESET User selectable via front panel buttons or digital inputs

TIME DELAY 0 to 999.9 seconds, on & off relay time delays

FAIL-SAFE OPERATION

AUTO INITIALIZATION

User may program any alarm for high or low trip point. Unused alarm LEDs and relays may be disabled (turn off).

Automatic (non-latching) Latching (requires manual acknowledge) Sampling (based on time) Pump alternation control (2 to 8 relays) Off (disable unused relays and enable Interlock feature) Manual on/off control mode

1. Automatic reset only (non-latching), when the input passes the reset point.

2. Automatic + manual reset at any time (non-latching)

3. Manual reset only, at any time (latching)

4. Manual reset only after alarm condition has cleared (L)

Note: Front panel button or digital input may be assigned to

acknowledge relays programmed for manual reset.

Programmable and independent for each relay

Programmable and independent for each relay.

Note: Relay coil is energized in non-alarm condition.

In case of power failure, relay will go to alarm state.

When power is applied to the meter, relays will reflect the state of the input to the meter.

Isolated 4-20 mA Transmitter Output

OUTPUT SOURCE

SCALING RANGE 1.000 to 23.000 mA for any display range CALIBRATION Factory calibrated: 0.00 to 100.00 = 4-20 mA output ANALOG OUT

PROGRAMMING ACCURACY ± 0.1% of span ± 0.004 mA TEMPERATURE

DRIFT

Process variable (PV), max, min, set points 1-8, Modbus input, or manual control mode

1.000 mA minimum and 23.000 mA maximum for all

parameters: overrange, underrange, max, min, and break

0.4 µA/C max from 0 to 65C ambient,

0.8 µA/C max from -40 to 0C ambient

Note: Analog output drift is separate from input drift.

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Model PD6100 Strain Gauge/Load Cell Meter Instruction Manual

NON-ISOLATED TRANSMITTER POWER SUPPLY

EXTERNAL LOOP POWER SUPPLY

OUTPUT LOOP RESISTANCE

35 VDC (external)

Terminals I+ & R: 24 VDC  10% . May be used to power the 4-20 mA output or other devices gauge). Refer to Figure 7 on page 19 and Figure 17 on page

ProVu Series (PD6100): All models rated @ 40 mA max. ProtEX-MAX (PD8 Series): All models @ 25mA max.

35 VDC maximum

Power supply Minimum Maximum

24 VDC

10  700 

100  1200 

(except load cell/strain

26.

Modbus® RTU Serial Communications

SLAVE ID 1 – 247 (Meter address) BAUD RATE 300 – 19,200 bps TRANSMIT

TIME DELAY DATA 8 bit (1 start bit, 1 or 2 stop bits) PARITY Even, Odd, or None with 1 or 2 stop bits BYTE-TO-BYTE

TIMEOUT TURN AROUND

DELAY

Note: Refer to the PROVU® Modbus Register Tables located at www.predig.com for details.

Programmable between 0 and 199 ms or transmitter always on for RS-422 communication

0.01 – 2.54 second

Less than 2 ms (fixed)

COMPLIANCE INFORMATION

Safety

UL & c-UL LISTED USA & Canada

UL FILE NUMBER E160849 FRONT PANEL UL Type 4X, NEMA 4X, IP65; panel gasket provided LOW VOLTAGE

DIRECTIVE

UL 508 Industrial Control Equipment

EN 61010-1:2010 Safety requirements for measurement, control, and laboratory use

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Model PD6100 Strain Gauge/Load Cell Meter Instruction Manual

Electromagnetic Compatibility

EMISSIONS

Radiated Emissions AC Mains Conducted Emissions

IMMUNITY

RFI - Amplitude Modulated

Electrical Fast Transients Electrostatic Discharge RFI - Conducted AC Surge Surge Power-Frequency Magnetic Field Voltage Dips

Voltage Interruptions

Note:

Testing was conducted on PD6100 meters installed through the covers of grounded metal enclosures with cable shields grounded at the point of entry representing installations designed to optimize EMC performance.

Declaration of Conformity available at www.predig.com

EN 55022:2010 Class A ITE emissions requirements Class A

Class A

EN 61326-1:2006 Measurement, control, and laboratory equipment EN 61000-6-2:2005 EMC heavy industrial generic immunity standard 80 -1000 MHz 10 V/m 80% AM (1 kHz)

1.4 - 2.0 GHz 3 V/m 80% AM (1 kHz)

2.0 - 2.7 GHz 1 V/m 80% AM (1 kHz) ±2kV AC mains, ±1kV other

±4kV contact, ±8kV air

10V, 0.15-80 MHz, 1kHz 80% AM ±2kV Common, ±1kV Differential 1KV (CM) 3 A/m 70%V for 0.5 period

40%V for 5 & 50 periods 70%V for 25 periods <5%V for 250 periods

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Model PD6100 Strain Gauge/Load Cell Meter Instruction Manual

SAFETY INFORMATION

CAUTION: Read complete

instructions prior to installation

WARNING: Risk of electric shock or personal injury.

and operation of the meter.

Hazardous voltages exist within enclosure. Installation and service should be

WARNING!

performed only by trained service personnel.

INSTALLATION

There is no need to remove the meter from its case to complete the installation, wiring, and setup of the meter for most applications.

Instructions are provided for setting up a 12/24 VDC powered meter to operate from 12 VDC and for changing the Sensor power supply to output 5 or 10 VDC instead of 24 VDC, see page 17 and 18.

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 assistance.

Panel Mounting Instructions

 Prepare a standard 1/8 DIN panel cutout – 3.622" x 1.772" (92 mm x

45 mm). Refer to Figure below, for more details.

 Clearance: allow at least 6.0" (152 mm) behind the panel for wiring.

 Panel thickness: 0.04" - 0.25" (1.0 mm - 6.4 mm).

Recommended minimum panel thickness to maintain Type 4X rating: 0.06" (1.5 mm) steel panel, 0.16" (4.1 mm) plastic panel.

 Remove the two mounting brackets provided with the meter (back-off the two

screws so that there is ¼" (6.4 mm) or less through the bracket. Slide the bracket toward the front of the case and remove).

 Insert meter into the panel cutout.

 Install mounting brackets and tighten the screws against the panel. To

achieve a proper seal, tighten the mounting bracket screws evenly until meter is snug to the panel along its short side. DO NOT OVER TIGHTEN, as the rear of the panel may be damaged.

Refer to the following pages for panel mounting diagrams.

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Model PD6100 Strain Gauge/Load Cell Meter Instruction Manual

3.622" (92 mm)

Square Corners to 0.060"

1.772

(45mm)

Tolerances:

-0.000 (-0.0mm)

B: +0.024 (+0.6mm)

-0.000 (-0.0mm)

(1.5mm) Max

Panel Cutout

to DIN 43700

: +0.032 (+0.8mm)

Figure 1. 1/8 DIN Panel Cutout Dimensions

Gasket

Panel

Removable Connectors

Mounting

Bracket

Mounting

Screw

Figure 2. Panel Mounting Details

Page 16

Model PD6100 Strain Gauge/Load Cell Meter Instruction Manual

Mounting Dimensions

Figure 3. Meter Dimensions - Side View

Figure 4. Meter Dimensions - Top View

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Model PD6100 Strain Gauge/Load Cell Meter Instruction Manual

Configuration for 12 or 24 VDC Input Power Option

Warning!

configuration.

Meters equipped with the 12/24 VDC power option are shipped from the factory ready to operate from 24 VDC.

To configure the meter for 12 VDC power:

1. Remove all the connectors.

2. Unscrew the back cover.

3. Slide the back cover about 1 inch.

4. Configure the J9 jumper, located behind the power connector, for 12 V as shown below.

Do not exceed voltage rating of the selected

J9 CONFIGURATION

+ _

MAIN BOARD

12 V

24 V

Factory Default

M-LINK

24 VDC 12 VDC POWER

Figure 5. Jumper Configuration for 12/24 VDC Input Power

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Model PD6100 Strain Gauge/Load Cell 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 excitation for the sensor.

If the sensor requires 5 VDC excitation, the internal jumper J3 must be configured accordingly.

To access the voltage selection jumper:

1. Remove all the wiring connectors.

2. Unscrew the back cover.

3. Slide out the back cover by about 1 ½ inches.

4. Configure the J3 jumper, located behind the input signal connector, for the desired excitation voltage as shown.

Do not use 24V to power a strain gauge bridge.

Caution!

The 24 V jumper configuration should only be used for mV input applications.

Jumper Configuration

10 V

24 V

MAIN BOARD

INPUT SIGNAL

Factory Default

10V

be appied t o J4

No jumper should

24V

Figure 6. Sensor Excitation Voltage Selection

Connections

All connections are made to removable screw terminal connectors located at the rear of the meter.

Caution!

Use copper wire with 60°C or 60/75°C insulation for all line voltage connections. Observe all safety regulations. Electrical wiring should be performed in accordance with all applicable national, state, and local codes to prevent damage to the meter and ensure personnel safety.

EXSG+ SGEX+

COM F4

Page 19

Model PD6100 Strain Gauge/Load Cell Meter Instruction Manual

Connectors Labeling

The connectors’ label, affixed to the meter, shows the location of all connectors available with requested configuration.

Do not connect any equipment other than Precision

Warning!

Digital’s expansion modules, cables, or meters to the RJ45 M-LINK connector. Otherwise damage will occur to the equipment and the meter.

SG- SG+

Figure 7. Connector Labeling for Fully Loaded PD6100

Power Connections

Power connections are made to a two-terminal connector labeled POWER on Figure 7. The meter will operate regardless of DC polarity connection. The + and - symbols are only a suggested wiring convention.

POWER

AC or DC

POWER

Required External Fuse:

5 A max, 250 V Slow Blow

Figure 8. Power Connections

Page 20

Model PD6100 Strain Gauge/Load Cell Meter Instruction Manual

Signal Connections

Signal connections are made to a six-terminal connector labeled SIGNAL on Figure 7. The EX- (negative excitation) terminal is used to sense the sensor excitation voltage for ratiometric operation, when the sensor is powered externally.

Switch Configuration

Setup and programming is performed both through the front panel buttons and switch settings shown below. The switch configuration must correspond to the setup and programming starting on page 29 (same range, type, etc.).

SG- SG+

Figure 9. Strain Gauge Configuration Switch

Excitation (Switch 1)

The excitation switch designates whether the meter will use its internal power supply or an external power supply.

ON Excitation Internal

Switch

OFF Excitation External Excitation

Excitation

When switch is turned ON, the ProVu's power supply is used.

When switch is turned OFF, an external power supply is used.

Page 21

Model PD6100 Strain Gauge/Load Cell Meter Instruction Manual

Range (Switch 2)

The range switch adjusts the gain of the internal circuitry. Narrower ranges require more amplification.

Turn this switch ON for the following input ranges: 15, 30, ±15, or ±25 mV.

Turn this switch OFF for the following input ranges: 150, 300, ±150, or ±250 mV.

Switch

ON Range

OFF Range

Higher gain

Lower gain

internal

Polarity (Switch 3)

The polarity switch selects whether the range is unipolar and starts at zero (i.e. 0 to 30 mV) or bipolar and starts at a negative value, or below

zero (i.e. -15 to +15 mV).

Turn this switch ON for the following input ranges: 15, 30, 150, or 300.

Turn this switch OFF for the following input ranges: ±15, ±25, ±150, or ±250

mV.

Switch

ON Polarity

OFF Polarity

Range starts zero (unipolar)

Range starts below zero (bipolar)

Source (Switch 4)

The source switch tells the ProVu whether the input is a strain gauge bridge (i.e. Figure 11), or it is a signal from a 2 or 4 wire transducer, or mV source (i.e. Figure 12)

Turn this switch ON if the connected source is a transducer*

Turn this switch OFF if the source is a strain gauge bridge

Switch

ON Source

OFF Source

Source is mV

input transducer

Source is strain

gauge bridge

*Ratio should be set to NO in Setup Input Menu

Page 22

Model PD6100 Strain Gauge/Load Cell Meter Instruction Manual

Shunt Resistor (Switch 5)

The PD6100 provides a means of simulating strain in a strain gauge bridge circuit via a 60.4K shunt resistor included in the meter. This will simulate an approximate 70% full-scale load in the case of a 350 strain bridge.

Switch

ON Shunt

OFF Shunt

Shunt resistor is connected input bridge.

Shunt resistor is disconnected the input bridge.

to the

from

Turn switch ON when you want to simulate a strain load

Turn this switch OFF to remove the shunt resistor

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 20 for proper configuration switch positioning.

INPUT SIGNAL

EX+COM

2134

EX-

SG+SG-

EX+

SG- SG+

EX-

Figure 10. Strain Gauge Powered by Internal Supply

Page 23

Model PD6100 Strain Gauge/Load Cell Meter Instruction Manual NOTE: Refer to Switch Configuration starting on page 20 for proper

switch positioning for the following wiring configurations.

INPUT SIGNAL

F4 SG+SG-

EX+

COM

2134

EX-

EX+

5-10 VDC

SG- SG+

Power

Supply

EX-

Figure 11. Strain Gauge Powered by External Supply

INPUT SIGNAL

EX+COM

2134

EX+ SG- SG+

3-Wire 100 mV

Transducer

EX-

SG+SG-

4 5321

CONFIG

Notes

 Two-wire mV signals: Connect positive

to SG+ and negative to SGFour-wire transducer: Connect EX- to



negative power transducer terminal.

Figure 12. 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. This technique is performed by enabling the “shunt resistor” switch (switch

5), which in turn shunts one leg of a connected strain bridge with a

Page 24

Model PD6100 Strain Gauge/Load Cell Meter Instruction Manual

predetermined resistive load(60.4k). This technique can be used as a means of verifying instrumentation by simulating a physical input. With no load connected, the enabling of the shunt resistor (switch 5) will simulate approximately a 70% F.S. load in the case of a 350 Strain Bridge.

EX+

SG- SG+

EX-

Figure 13. Shunt Resistor

Modbus RTU Serial Communications

Serial communications connection is made to an RJ45 connector labeled M-LINK on Figure 7. Use the PDA1232 for RS-232 interfacing, the PDA8008 for USB interfacing, or the PDA1485 for RS-485 interfacing. The same port is used for interfacing with all expansion

modules (e.g. external relays, digital I/O).

Use the PDA1200 meter copy cable for meter-to-meter interfacing for

cloning purposes (i.e. copying settings from one meter to other meters).

Relay Connections

Relay connections are made to two six-terminal connectors labeled RELAY1 – RELAY4 on Figure 7. Each relay’s C terminal is common only to the normally open (NO) and normally closed (NC) contacts of the corresponding relay. The relays’ C terminals should not be confused with the COM (common) terminal of the INPUT SIGNAL connector.

RELAY4 RELAY3

4365 21

CNONO NC NC C

Figure 14. Relay Connections

RELAY2 RELAY1

4365 21

CNONO NC NC C

Page 25

Model PD6100 Strain Gauge/Load Cell Meter Instruction Manual

Switching Inductive Loads

The use of suppressors (snubbers) is strongly recommended when switching inductive loads to prevent disrupting the microprocessor’s operation. The suppressors also prolong the life of the relay contacts. Suppression can be obtained with resistor-capacitor (RC) networks assembled by the user or purchased as complete assemblies. Refer to the following circuits for RC network assembly and installation:

Figure 15. AC and DC Loads Protection

Choose R and C as follows: R: 0.5 to 1  for each volt across the contacts C: 0.5 to 1 µF for each amp through closed contacts

Notes:

1. Use capacitors rated for 250 VAC.

2. RC networks may affect load release time of solenoid loads. Check to confirm proper operation.

3. Install the RC network at the meter's relay screw terminals. An RC network may also be installed across the load. Experiment for best results.

Use a diode with a reverse breakdown voltage two to three times the circuit voltage and forward current at least as large as the load current.

Figure 16. 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.

Relays are de-rated to 1/14th HP (50 watts) with an inductive load.

Note:

Page 26

Model PD6100 Strain Gauge/Load Cell Meter Instruction Manual

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.

24 V

RELAY1

321

MA OUT

4-20 mA Input

Remote Display,

Chart Recorder, Etc.

RI- I+

132

RELAY1

321

4-20 mA

Input Meter

MA OUT

12-35 VDC

Power Supply

RI- I+

132

Figure 17. 4-20 mA Output Connections

Analog Output Power Supply

If the analog output is not using the 24 VDC supply to power the output loop, it can be used for other things. The I+ Terminal is the +24 V and the R terminal is the return.

F4 Digital Input Connections

A digital input, F4, is standard on the meter. This digital input is connected with a normally open contact across F4 and COM, or with an active low signal applied to the F4.

The functionality of the F4 input is set up in the Advanced Features,

User menu.

INPUT SIGNAL

COM

2134

EX+

SG-

SG+

EX-

Figure 18. F4 Digital Input Connections

Page 27

Model PD6100 Strain Gauge/Load Cell Meter Instruction Manual

External Relays & Digital I/O Connections

The relay and the digital I/O expansion modules PDA1004 & PDA1044 are connected to the meter using a CAT5 cable provided with each module. The two RJ45 connectors on the expansion modules are identical and interchangeable; they are used to connect additional modules to the system.

Note: The jumper located between the RJ45 connectors of the

PDA1044 must be removed on the second digital I/O module in order for the system to recognize it as module #2.

Do not connect or disconnect the expansion modules

Warning!

with the power on! More detailed instructions are provided with each optional expansion module.

Figure 19. Expansion Modules & DIN Rail Mounting Kit

RLY5 RLY6 RLY7 RLY8

NO C NO C NO C NO C

345678

Figure 20. External Relays Module Connections

Page 28

Model PD6100 Strain Gauge/Load Cell Meter Instruction Manual

123456

+5 I1 I2 I3 I4 O1

5 VDC GND

DI 1-4 DO 1-4

O2 O3

910

O4 G

Figure 21. Digital I/O Module Connections

Interlock Relay Feature

As the name implies, the interlock relay feature reassigns one, or more, alarm/control relays for use as interlock relay(s). Interlock contact(s) are wired to digital input(s) and trigger the interlock relay. This feature is enabled by configuring the relay, and relative digital input(s) (see page

66). In one example, dry interlock contacts are connected in series to

one digital input which will be used to force on (energize) the assigned interlock power relay when all interlock contacts are closed (safe). The interlock relay front panel LED flashes when locked out. The interlock relay would be wired in-series with the load (N/O contact). See below.

Figure 22. Interlock Connections

Page 29

Model PD6100 Strain Gauge/Load Cell Meter Instruction Manual

SETUP AND PROGRAMMING

The meter is factory calibrated prior to shipment to read in millivolts. The calibration equipment is certified to NIST standards.

Overview

There is a 5-position DIP switch to set the meter input selection. See Figure 9 on page 20 to setup the switch.

Setup and programming is done through the front panel buttons. After power and input signal connections have been completed and

verified, apply power to the meter.

Page 30

Model PD6100 Strain Gauge/Load Cell Meter Instruction Manual

Front Panel Buttons and Status LED Indicators

Button Symbol

Description LED Status

1-8 Alarm 1-8 indicator

Right arrow/F1 Zero Meter

Up arrow/F2 Reset Tare

Enter/F3 Tare

Note: Alarms 5-8 are enabled when

relay expansion module is installed.

 Press the Menu button to enter or exit the Programming Mode at

any time.

 Press the Right arrow button to move to the next digit during digit or

decimal point programming.

 Press or hold the Up arrow button to scroll through the menus,

decimal point, or to increment the value of a digit.

 Press the Enter button to access a menu or to accept a setting.  Press and hold the Menu button for three seconds to access the

advanced features of the meter.

1-8 M

T G

1-4

Note: LEDs for relays in manual mode

flash with the “M” LED every 10 seconds.

Flashing: Relay in manual control mode

Flashing: Tare (Net) Gross

Flashing: Relay interlock switch open

Page 31

Model PD6100 Strain Gauge/Load Cell Meter Instruction Manual

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

setup

Input

Polar

range

15 mv

25 mv

30 mv

150mv

250mv

300mv

ratio

d-SCAL

units

Dec pt

Pv 1

Pv 2

prog

SCALE

SCAL 1

SCAL 2

uni

Setup Input Polar Unipolar

Bipolar

Range 15 mV 25 mV 30 mV 150 mV 250 mV 300 mV Ratiometric

Dual-Scale

Units Decimal point PV1 PV2 Program Scale Scale 1 Scale 2

Enter Setup menu Enter Input selection menu

Enter unipolar or bipolar selection menu

Press Enter to select operation with positive signals only (e.g. 0-30 mV)

Press Enter to select operation with positive & negative signals (e.g. ±15 mV)

Enter range selection menu

Set meter for 15 mV input (uni/bi)

Set meter for ±25 mV input (bi)

Set meter for 30 mV input (uni)

Set meter for 150 mV input (uni/bi)

Set meter for ±250 mV input (bi)

Set meter for 300 mV input (uni)

Press Enter to select ratiometric operation to compensate for excitation changes.

Press Enter to select dual-scale display (Select Yes or No)

Select the display units/tags

Set decimal point

PV1 decimal point (dual-scale)

PV2 decimal point (dual-scale)

Enter the Program menu Enter the Scale menu Enter the Scale menu for PV1 Enter the Scale menu for PV2

Page 32

Model PD6100 Strain Gauge/Load Cell Meter Instruction Manual

Display Parameter Action/Setting Description

Cal

Inp 1

Dis 1

Inp 2

Dis 2

Error

dsplay

big

Little

d-Inty

RELaY

RLY 1

Act 1

Auto

A-nman

LatCH

Lt-cLr

Altern

Sanmpl

OFF

Set 1

RSt 1

Calibrate Input 1

Display 1 Input 2

Display 2 Error

Display Upper display

Lower display

Display intensity

Relay Relay 1 Action 1 Automatic Auto-manual

Latching Latching-

cleared

Alternate Sampling Off

Set 1 Reset 1

Enter the Calibration menu

Calibrate input 1 signal or program input 1 value

Program display 1 value

Calibrate input 2 signal or program input 2 value (up to 32 points)

Program display 2 value (up to 32 points)

Error, calibration not successful, check signal or programmed value

Enter the Display menu

Press Enter to assign the Upper display parameter (default: PV)

Press Enter to assign the Lower display parameter (default: engineering units)

Set display intensity level from 1 to 8

Enter the Relay menu

Relay 1 setup

Set relay 1 action

Set relay for automatic reset

Set relay for automatic & manual reset any time

Set relay for latching operation

Set relay for latching operation with manual reset only after alarm condition has cleared

Set relay for alternation control

Set relay for sampling operation

Disable relay and front panel status LED (Select Off to enable Interlock feature)

Program set point 1

Program reset point 1

Page 33

Model PD6100 Strain Gauge/Load Cell Meter Instruction Manual

Display Parameter Action/Setting Description

RLY 2

FaiLSF

FLS 1

FLS 2

DeLAY

DLY 1

On 1

OFF 1

DLY 2

Aout

Dis 1

Out 1

Dis 2

Relay 2

Fail-safe Fail-safe 1 On Fail-safe 2 Delay Delay 1 On 1 Off 1 Delay 2 Analog output Display 1 Output 1 Display 2

Relays 2-8 setup

Note: Relays 5-8 are shown, only if expansion relay module is installed.

Enter Fail-safe menu

Set relay 1 fail-safe operation

Enable fail-safe operation

Set relays 2-8 fail-safe operation

Enter relay Time Delay menu

Enter relay 1 time delay setup

Set relay 1 On time delay

Set relay 1 Off time delay

Enter relays 2-8 time delay setup

Enter the Analog output scaling menu

Program display 1 value

Program output 1 value (e.g. 4.000 mA)

Program display 2 value

reset

Rst Hi

Rst Lo

Rst HL

Rst tr

tare

Captur

Prog T

Off

Out 2

Output 2 Reset Reset high Reset low Reset

high & low Reset tare Tare Capture

Programmable

Off

Program output 2 value (e.g. 20.000 mA)

Press Enter to access the Reset menu

Press Enter to reset max display

Press Enter to reset min display

Press Enter to reset max & min displays

Press Enter to reset tare

Enter Tare menu

Press Enter to set meter to capture tare using the Tare button

Press Enter to set meter to programmable tare and enter a value

Press Enter to disable the tare function

Page 34

Model PD6100 Strain Gauge/Load Cell Meter Instruction Manual

Contrl

Auto

mAn

pass

Pass 1

Pass 2

Pass 3

unloc

locd

999999

-99999

Control Automatic

Manual

Password Password 1 Password 2 Password 3 Unlocked Locked Flashing

Enter Control menu

Press Enter to set meter for automatic operation

Press Enter to manually control relays or analog output operation

Enter the Password menu

Set or enter Password 1

Set or enter Password 2

Set or enter Password 3

Program password to lock meter

Enter password to unlock meter

Over/under range condition

Setting Numeric Values

The numeric values are set using the Right and Up arrow buttons. Press Right arrow 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 arrow to auto-increment the display value. Press the Enter button, at any time, to accept a setting or Menu button

to exit without saving changes.

000

Select

Next Digit

004

Increment

Digital

alue

004.000

dis 1 dis 1 dis 1

005

000

ccept

Setting

Page 35

Model PD6100 Strain Gauge/Load Cell Meter Instruction Manual

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.

 Press Menu, at any time, to exit and return to Run Mode. Changes

made to settings prior to pressing Enter are not saved.

 Changes to the settings are saved to memory only after pressing

Enter.

 The display moves to the next menu every time a setting is

accepted by pressing Enter.

Page 36

Model PD6100 Strain Gauge/Load Cell 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. Decimal point position

4. Program scaling or live calibration

5. Display parameter and intensity

6. Relay operation

7. 4-20 mA analog output scaling

Page 37

Model PD6100 Strain Gauge/Load Cell Meter Instruction Manual

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. After selecting “

“

Yes” enables the dual-scale feature, allowing scaling of the same input

in two different scales (for PV1 & PV2) or displaying the percentage of PV1.

Yes” or “No” for ratio, d-SCAL is displayed. Selecting

polar

If Polarity ( Set to Bi (bi)

)

Page 38

Model PD6100 Strain Gauge/Load Cell Meter Instruction Manual

Input Polarity Selection (PoLAR)

Select unipolar operation for inputs in ranges from 0 to 300 mV and select bipolar operation for inputs in ranges from -250 mV to +250 mV. This setting determines the selectable ranges for the millivolt input

Range Selection (RANGE)

This menu is used to select the input range. The selections listed are determined by the

Polarity setting.

Unipolar mode: 0-15, 0-30, 0-150, 0-300 mV Bipolar mode: ±15, ±25, ±150, ±250 mV

Ratiometric Operation (ratio)

Ratiometric operation corrects the measured strain gauge signal for up to

±5% variation of either the internal or external excitation power

supply. In order to use the ratiometric operation, the ratiometric operation menu must be set to yes (

YES).

Dual-Scale (d-sCal)

The analog input can be displayed in two different scales, by enabling the dual-scale feature in the

Setup-Input menu, see page 37.

To enable the dual-scale feature you must select d-SCAL in the Input selection menu.

Page 39

Model PD6100 Strain Gauge/Load Cell 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 48 to access the display menu to show the unit on the lower display.

The custom unit may also be used to enter a display tag.

Pre-defined engineering units: lb, kg, ounce, gram, ton (short), tonne

(metric ton). The meter converts the reading according to the unit selected (e.g. 100.00 lb = 45.36 kg = 45359.2 g = 1600 oz).

Unit Conversions: After scaling values in the Scale menu have been

entered during setup, automatic unit conversions are done when switching from any standard unit to any other standard unit during future changes of the

Once a standard unit has been selected in the units menu, the user must then set their scaling values for that unit (under the setup menu) in order for that unit's conversion factor to take effect. Otherwise, the meter will allow the user to freely switch between standard unit selections, without applying a conversion factor.

Note that if the dual-scale feature is selected in the PV1 and PV2 will be converted from the original standard unit to the new standard unit. A scaled PV not scaled for the selected units must be reprogrammed. scaled for gallons; if the PV 2 will need to re-scaled manually back to gallons.

Units menu.

Setup menu, both

Example: If PV 1 is scaled for pounds, and PV 2

Units selection is changed from Lb to ounce,

Note: PV1 and PV2 may use different standard units as starting points, however the user must select the unit and complete scaling for both PV1 and PV2 individually. For example, set PV1 equal to "Lbs" and complete the scaling for PV1 only. PV1 is now reading in Lbs. Then, change the units for PV2 to be "Kg" and complete the scaling for PV2. PV2 will read in kilograms and PV1 will reflect the conversion from Lbs to Kgs.

Page 40

Model PD6100 Strain Gauge/Load Cell Meter Instruction Manual

Setting the Input Units or Custom Tags (units)

Enter the input unit or custom tag that will be displayed if units are selected in the parameter. See the flow chart on page 48 to access the display menu to show the unit or tag on the lower display. The engineering units or custom legends can be set using the following 7-segment character set:

Notes: Degree symbol represented by (<) if programming with MeterView® Pro. The letters “m” and “w” use two 7-segment LEDs each; when selected the characters to the right are shifted one position. Press and hold up arrow to auto-scroll the characters in the display.

units menu, or d unit is selected as the lower display

Display Character

0 1 2 3 4 5 6 7 8 9 A b C c d e f g 9 H h I

I j

0 1 2 3 4 5 6 7 8 9 A b

d E F

g H

I i

Display Character

k l

n O o p q r s t u v

x y z

/ [ ] =

K L

o P q

t u V

X Y Z

]

[ =

Degree(<)

Space

Page 41

Model PD6100 Strain Gauge/Load Cell Meter Instruction Manual Setting the Decimal Point (dEc pt)

The decimal point may be set with up to five decimal places or with no decimal point at all.

Pressing the Right arrow moves the decimal point one place to the right until no decimal point is displayed, and then it moves to the leftmost position.

Pressing the Up arrow moves the decimal point to the left. If the dual-scale feature is selected, the decimal point selections for PV1

& PV2 are enabled.

Page 42

Model PD6100 Strain Gauge/Load Cell 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

calibrate

the meter using the sensor as the input and with ratiometric operation enabled to compensate for small variation in the excitation voltage.

It is

very important to read the following information, before proceeding

to program the meter:

 The meter is factory calibrated prior to shipment to read in millivolts.

The calibration equipment is certified to NIST standards.

 Use the Scale menu to scale the input (e.g. 0-100 mV). A calibrated

signal source is not needed to scale the meter.

 The PD6100 is a single input meter with dual-scale capability.

If the dual-scale feature is selected in the

Scale 2 menus are enabled for PV1 & PV2 respectively.

The process inputs may be calibrated or scaled to any display value within the range of the meter.

Program Menu for Single Scale Process

Program Menu for Dual-Scale Applications

recommended to

Setup menu, the Scale 1 and

Additional parameters, not needed for most applications, are programmed in the

, page 71.

Advanced Features menu; see Advanced Features

Page 43

Model PD6100 Strain Gauge/Load Cell Meter Instruction Manual

Calibrating the Meter with Strain Gauge/Load Cell (Cal)

To scale the meter without a signal source

refer to Scaling the Meter (

The meter can be calibrated to display the process variable in engineering units by applying the appropriate input signal and following the calibration procedure.

The use of a calibrated signal source is strongly recommended to calibrate the meter.

he display flashes

while sensing

the inputs

SCALE), page 44.

Warm up the meter for at least 15 minutes

before performing calibration to ensure

specified accuracy.

Multi-Point Calibration & Scaling

The meter is set up at the factory for 2-point linear calibration. The number of points for multi-point calibration/scaling is set up in the

Advanced Features menu. Up to 32 linearization points may be selected

for PV1 and up to 8 linearization points may be selected for PV2. See page 78 for details.

Page 44

Model PD6100 Strain Gauge/Load Cell Meter Instruction Manual MeterView® Pro Software

The meter can also be programmed using the PC-based MeterView Pro software available for free download at www.predig.com.

Data logging for one meter at the time is available with MeterView Pro software. More advanced data acquisition may be accomplished by using any Modbus RTU compliant software.

In order to program the meter using a computer, the meter must be connected using a USB, RS-232, or RS-422/485 serial adapter, see ORDERING INFORMATION on page 7 for details.

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.

For instructions on how to program

numeric values see

Values

Setting Numeric

, page 34.

Page 45

Model PD6100 Strain Gauge/Load Cell Meter Instruction Manual Dual-Scale Application

The analog input can be displayed in two different scales, by enabling the dual-scale feature in the

Setup Input menu, see page 37.

To enable the dual-scale feature you must select it in the Input selection menu.

Scaling the Input for PV1 (SCAL 1)

Scaling the Input for PV2 (SCAL 2)

Page 46

Model PD6100 Strain Gauge/Load Cell Meter Instruction Manual

Error Message (Error)

An error message indicates that the calibration or scaling process was not successful.

After the error message is displayed, the meter reverts to input 2 during calibration or scaling and to input 1 during internal calibration, allowing the appropriate input signal to be applied or programmed.

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. Wrong signal selection in

Setup menu.

3. Minimum input span requirements not maintained.

4. Input 1 signal inadvertently applied to calibrate input 2.

Minimum Input Span

The minimum input span is the minimum difference between input 1 and input 2 signals required to complete the calibration or scaling of the meter.

Input Range Input 1 & Input 2 Span 15 mV 0.2 mV 25 mV, 30 mV 0.4 mV 150 mV 2.0 mV 250 mV, 300 mV 4.0 mV

Page 47

Model PD6100 Strain Gauge/Load Cell Meter Instruction Manual

Setting the Display Parameter & Intensity (dsplay)

The upper display (Big) can be programmed to display:

1. Process value 1 (PV1)

2. Process value 2 (PV2)

3. Percent of PV1 (PCt)

4. Relay set points

5. Toggle process value & units

6. Max & min values

7. Gross value

8. Toggle net & gross values

9. Input millivolts

10. Modbus input

The lower display (

1. Engineering units or custom legends

2. Process value 1 (PV1)

3. Process value 2 (PV2)

4. Percent of PV1 (PCt)

5. Relay set points

6. Toggle process value & units

7. Max & min values

8. Gross value

9. Toggle net & gross values

10. Input millivolts

11. Modbus input

12. Off (no display)

Display Intensity: The meter has eight display intensity levels to give

the best performance under various lighting conditions. Select intensity 8 for outdoor applications. The default intensity setting is 8.

Little) can be programmed to display:

Page 48

Model PD6100 Strain Gauge/Load Cell Meter Instruction Manual

Display Setup Menu

Page 49

Model PD6100 Strain Gauge/Load Cell 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

Caution!

1. Relay action a. Automatic reset only (non-latching) b. Automatic + manual reset at any time (non-latching) c. Latching (manual reset only) d. Latching with Clear (manual reset only after alarm

condition has cleared) e. Pump alternation control (automatic reset only) f. Sampling (the relay is activated for a user-specified time) g. Off (relay state controlled by Interlock feature)

2. Set point

3. Reset point

4. Fail-safe operation a. On (enabled) b. Off (disabled)

5. Time delay a. On delay (0-999.9 seconds) b. Off delay (0-999.9 seconds)

input and they will remain in the state found prior to entering the Relay menu.

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Model PD6100 Strain Gauge/Load Cell Meter Instruction Manual

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. Automatic + manual reset at any time (non-latching)

3. Latching (manual reset only, at any time)

4. Latching with Clear (manual reset only after alarm condition has cleared)

5. Pump alternation control (automatic reset only)

6. Sampling (the relay is activated for a user-specified time)

7. Off (relay state controlled by Interlock feature)

The following graphic shows relay 1 action setup; relay 2-8 are set up in a similar fashion.

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Model PD6100 Strain Gauge/Load Cell Meter Instruction Manual

Programming Set and Reset Points

High alarm indication: program set point above reset point. Low alarm indication: program set point below reset point. The deadband is determined by the difference between set and reset

points. Minimum deadband is one display count. If the set and reset points are programmed with the same value, the relay will reset one count below the set point.

Note: Changes are not saved until the reset point has been accepted.

Setting Fail-Safe Operation

In fail-safe mode of operation, the relay coil is energized when the process variable is within safe limits and the relay coil is de-energized when the alarm condition exists. The fail-safe operation is set independently for each relay. Select disable fail-safe operation.

on to enable or select off to

Programming Time Delay

The On and Off time delays may be programmed for each relay

between 0 and 999.9 seconds. The relays will transfer only after the condition has been maintained for the corresponding time delay.

On time delay is associated with the set point.

The

Off time delay is associated with the reset point.

The

Page 52

Model PD6100 Strain Gauge/Load Cell 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)

For Manual reset mode, ACK can be pressed anytime to turn "off" relay. To detect a new alarm condition, the signal must go below the set point, and then go above it.

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Model PD6100 Strain Gauge/Load Cell Meter Instruction Manual

Low Alarm Operation (Set < Reset)

Input

Rese

Set

Rela

LED

energized

de-energized

Automatic (non-latching)

Rela

LED

ACK

pressed

Automatic or Manual (non-latching)

Rela

LED

ACK

pressed

Manual (latching)

Rela

LED

ACK

pressed

Manual only after passing above Reset (latching with clear)

For Manual reset mode, ACK can be pressed anytime to turn "off" relay. For relay to turn back "on", signal must go above set point, and then go below it.

Page 54

Model PD6100 Strain Gauge/Load Cell Meter Instruction Manual

High Alarm with Fail-Safe Operation (Set > Reset)

Input

Set

Rela

LED

Rela

LED

ACK

pressed

Rela

LED

ACK

pressed

Rela

LED

ACK

pressed

energized

de-energized

Automatic (non-latching)

Automatic or Manual (non-latching)

Manual (latching)

Manual only after passing below Reset (latching with clear)

Note: Relay coil is energized in non-alarm condition.

In case of power failure, relay will go to alarm state.

Page 55

Model PD6100 Strain Gauge/Load Cell Meter Instruction Manual

Low Alarm with Fail-Safe Operation (Set < Reset)

Input

Rese

Set

Rela

LED

de-energized

energized

Automatic (non-latching)

Rela

LED

ACK

pressed

Automatic or Manual (non-latching)

Rela

LED

ACK

pressed

Manual (latching)

Rela

LED

ACK

pressed

Manual only after passing above Reset (latching with clear)

Note: Relay coil is energized in non-alarm condition.

In case of power failure, relay will go to alarm state.

Page 56

Model PD6100 Strain Gauge/Load Cell Meter Instruction Manual

Pump Alternation Control Operation

Page 57

Model PD6100 Strain Gauge/Load Cell Meter Instruction Manual

Relay Sampling Operation

Input

Set

Reset

Relay

LED

Sample

Tim e

Sample

Tim e

Sample

Tim e

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 58

Model PD6100 Strain Gauge/Load Cell Meter Instruction Manual

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

On time delay timer resets and the relay does not change state. The same principle applies to the Off time delay.

Note: If “Automatic or Manual (A-mAn)” reset mode is selected, the

LED follows the reset point and not the relay state when the relay is acknowledged.

Page 59

Model PD6100 Strain Gauge/Load Cell Meter Instruction Manual

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 optional internal relays and/or 4 external relays expansion module. Typical applications include high or low force, level, or pressure alarms, control applications such as simple on/off control, and relay alternation control for up to 8 loads. There are four basic ways the relays can be used:

1. High or Low Alarms with Latching or Non-Latching Relays

2. Simple On/Off Control with 100% Adjustable Deadband

3. Sampling (Based on Time)

4. Alternation Control for up to 8 Pumps

Relays Auto Initialization

When power is applied to the meter, the front panel LEDs and alarm relays will reflect the state of the input to the meter. The following table indicates how the alarm LEDs and relays will react on power-up based on the set and reset points:

Alarm # HI or LO

Alarm

1 HI 1000 500 499 Off 2 LO 700 900 499 On 3 LO 250 400 499 Off 4 HI 450 200 499 On

Set

Point

Reset

Point

Power-Up

Reading

Fail-Safe Operation

The following table indicates how the relays behave based on the failsafe selection for each relay:

Fail-Safe Selection

Off Open Closed Closed Open Relays go to

On Closed Open Open Closed Relays go to

Note: NO = Normally Open, NC = Normally Closed. This refers to the

Non-Alarm State Alarm State Power Failure NO NC NO NC

condition of the relay contacts when the power to the meter is off.

Relay &

LED

non-alarm state

alarm state

Page 60

Model PD6100 Strain Gauge/Load Cell Meter Instruction Manual

Front Panel LEDs

The LEDs on the front panel provide status indication for the following:

LED Status LED Status

1 Alarm 1 5 Alarm 5 2 Alarm 2 6 Alarm 6 3 Alarm 3 7 Alarm 7 4 Alarm 4 8 Alarm 8

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 reaches a set point for a high or low alarm, the corresponding alarm LED will turn on. When the display returns to the reset point the LED will go off. The front panel LEDs respond differently for latching and non-latching relays.

For non-latching relays, the LED is always off during normal condition and always on during alarm condition, regardless of the state of the relay (e.g. Relay acknowledged after alarm condition).

For latching relays, the alarm LEDs reflect the status of the relays, regardless of the alarm condition. The following tables illustrate how the alarm LEDs function in relation to the relays and the acknowledge button (Default: F3 key assigned to ACK):

Latching and Non-Latching Relay Operation

The relays can be set up for latching (manual reset) or non-latching (automatic reset) operation.

Relay terminology for following tables

Terminology Relay Condition

On Alarm (Tripped) Off Normal (Reset)

Ack Acknowledged

The On and Off terminology does not refer to the status of the relay’s coil, which depends on the fail-safe mode selected.

Warning!

In latching relay mode, latched relays will reset (unlatch) when power is cycled.

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Model PD6100 Strain Gauge/Load Cell Meter Instruction Manual

Non-Latching Relay (Auto)

Automatic reset only

Condition LED Relay

Normal Off Off Alarm On On Ack (No effect) On On Normal Off Off

In this application, the meter is set up for automatic reset (non-latching relay). Acknowledging the alarm while it is still present has no effect on either the LED or the relay. When the alarm finally goes away, the relay automatically resets and the LED also goes off.

Non-Latching Relay (A-man)

Automatic + manual reset at any time

Condition LED Relay

Normal Off Off Alarm On On Normal Off Off Next Alarm On On Ack On Off Normal Off Off

In this application, the meter is set up for automatic and manual reset at any time (non-latching relay). The LED and the relay automatically reset when the meter returns to the normal condition. The next time an alarm occurs, the operator acknowledges the alarm manually while the alarm condition still exists. This causes the relay to reset, but the LED stays on until the meter returns to the normal condition.

Latching Relay (LatcH)

Manual reset any time

Condition LED Relay

Normal Off Off Alarm On On

Ack Off Off 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.

Page 62

Model PD6100 Strain Gauge/Load Cell Meter Instruction Manual

Latching Relay (Lt-Clr)

Manual reset only after alarm condition has cleared

Condition LED Relay

Normal Off Off Alarm On On Ack (No effect) On On Normal On On

Ack Off Off In this application, the meter is set up for manual reset only after the signal passes the reset point (alarm condition has cleared). Acknowledging the alarm while it is still present has no effect on either the LED or the relay. When the alarm is acknowledged after it returns to the normal state, the LED and the relay go off. Notice that the LED remains on, even after the meter returns to the normal condition. This is because, for latching relays, the alarm LED reflects the status of the relay, regardless of the alarm condition.

Acknowledging Relays

There are two ways to acknowledge relays programmed for manual reset:

1. Via the programmable front panel function keys F1-F3 (Assignable via the menu.

2. Remotely via a normally open pushbutton wired across one of the digital inputs and the +5 V terminals on the digital I/O modules, or using the F4 digital input (factory default setting), which is triggered with a contact closure to COM, or with an active low signal (see page 26).

When the ACK button or the assigned digital input is closed, all relays programmed for manual reset are acknowledged.

Note: The function key and digital input assignment is changed in the Advanced – User menu.

12345678910

User menu inside the Advanced Features

PDA1044 Digital I/O Module

+5 I1 I2 I3 I4 O1 O2 O3 O4 G

DI 1-4

ACK

DO 1-4

GND

Figure 23. Acknowledge Relays with Digital Input

Page 63

Model PD6100 Strain Gauge/Load Cell Meter Instruction Manual

Pump Alternation Control Applications (Altern)

For pump control applications where two or more similar pumps are used to control the level of a tank, it is desirable to have all the pumps operate alternately. This prevents excessive wear and overheating of one pump over the lack of use of the other pumps.

Up to 8 relays can be set up to alternate every time an on/off pump cycle is completed. The set points and reset points can be programmed, so that the first pump on is the first 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. Pump #1 turns on when level reaches 30.000, when level drops below 10.000 pump #1 turns off.

2. The next time level reaches 30.000, pump #2 turns on, when level drops below 10.000 pump #2 turns off.

3. If the level doesn’t reach 35.000 pump #1 and pump #2 will be operating alternately.

4. If pump #1 cannot keep the level below 35.000 pump #2 will turn on at 35.000, then as the level drops to 10.000 pump #1 turns off, pump #2 is still running and shuts off below 5.000.

5. Notice that with the set and reset points of pump #2 outside the range of pump #1, the first pump on is the first pump to go off. This is true for up to 8 alternating pumps, if setup accordingly.

6. Relay #3 will go into alarm if the level drops below 4.000 and relay #4 will go into alarm if the level exceeds 40.000.

7. Adding the 4 external relays expansion module allows using the 4 SPDT internal relays for pump alternation and the 4 SPST external relays for high, high-high, low, and low-low alarm indication.

Page 64

Model PD6100 Strain Gauge/Load Cell Meter Instruction Manual

Application #2: Pump Alternation Using Relays 3 & 4

1. Relays 1 and 2 are set up for low and high alarm indication.

2. Relays 3 and 4 are set up for pump alternation.

Set and Reset Point Programming

Relay Set Point Reset Point Function

1 495 750 Controls low alarm 2 7500 6900 Controls high alarm 3 7000 900 Controls backup pump 4 6000 1000 Controls main pump

The following graphics provide a visual representation of a typical pump alternation application with high and low alarm monitoring.

6000

Strain Gauge Signal

Load Cell

1. Relay #4 turns the main pump on at 6000 gallons and turns it off at 1000 gallons.

Strain Gauge Signal

2. With the Pump Alternation feature activated, the next time the level reaches 6000 gallons, relay #3 transfers and starts the backup pump.

6000

Load Cell

Page 65

Model PD6100 Strain Gauge/Load Cell Meter Instruction Manual

7000

3 4

Strain Gauge Signal

Load Cell

3. If the backup pump is not able to keep up, and the level reaches 7000 gallons, relay #4 transfers and starts the main pump as well.

7500

3 4

6900

Strain Gauge Signal

Load Cell

4. Relay #2 trips the High Level Alarm at 7500 gallons and resets at 6900 gallons.

750

495

Strain Gauge Signal

Load Cell

5. Relay #1 trips the Low Level Alarm at 495 gallons and resets at 750 gallons.

Page 66

Model PD6100 Strain Gauge/Load Cell Meter Instruction Manual

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

2. In the Advanced features –

inputs to

3. Connect a switch or dry contact between the +5V terminal and the

corresponding digital input (dI-1 to dI-4) terminal.

Setup – Relay – Action menu and set the action to off.

User menu program any of the digital

Force On any of the internal relays (1-4).

SW2

SW1

123456

+5 I1 I2 I3 I4 O1

5 VDC GND

DI 1-4 DO 1-4

O2 O3

910

O4 G

Interlock Relay Operation Example

Relays 1 & 2 are configured to energize (their front panel LEDs are off) when SW1 & SW2 switches (above) are closed. If the contacts to these digital inputs are opened, the corresponding front panel LEDs flash indicating this condition. The processes being controlled by the interlock relay will stop, and will re-start only after the interlock relay is reactivated by the digital inputs (switches).

Page 67

Model PD6100 Strain Gauge/Load Cell 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.

Analog Output menu is used to program the 4-20 mA output based

The on display values.

For instructions on how to program

numeric values see

Values

Setting Numeric

, page 34.

Page 68

Model PD6100 Strain Gauge/Load Cell 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.

Protecting or Locking the Meter

Enter the Password menu and program a six-digit password.

For instructions on how to program numeric values see

Values

, page 34.

Record the password for future reference. If appropriate, it may be recorded in the space provided.

Model: Serial Number: Password 1: __ __ __ __ __ __ Password 2: __ __ __ __ __ __ Password 3: __ __ __ __ __ __

Setting Numeric

Page 69

Model PD6100 Strain Gauge/Load Cell Meter Instruction Manual

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. 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 a new password is entered.

If the correct six-digit password is entered, the meter displays the message password is programmed.

If the password entered is incorrect, the meter displays the message

Locd (Locked) for about two seconds, and then it returns to Run Mode.

To try again, press Enter while the

unLoc (unlocked) and the protection is disabled until a new

Locked message is displayed.

Did you forget the password?

The password may be disabled by entering a master password once. If you are authorized to make changes, enter the master password 508655 to unlock the meter.

Page 70

Model PD6100 Strain Gauge/Load Cell Meter Instruction Manual

Reset Menu (reset)

The Reset menu is used to reset the tare (rst tr) and the maximum or

minimum readings (peak or valley) reached by the process; max & min may be reset at the same time by selecting “reset high & low” (

Note: Resetting the tare resets the max & min readings.

rst HL).

Tare Menu (Tare)

The Tare menu is used to select the tare mode. There are three modes

of operation:

Capture Tare: Pressing the Tare key zeroes the display and the “T”

indicator flashes indicating that tare is applied to the reading (e.g. Net weight).

Programmable Tare: Program a known value to be subtracted from the

display value to obtain the net value. Pressing Reset tare clears the tare value to zero. Programmable Tare will not tare negative PVs. Use Capture Tare for negative PVs.

Off: Tare function is disabled and pressing Tare key has no effect.

Tare Functionality (tare)

The tare function zeroes out the display. In the case of scale weight, tare is used to eliminate container weight and provide net weight readings.

Capture Tare, Programmable Tare, and Off.

0.2

lbs

Before tare

0.0

lbs

After capture tare

0.2

lbs

After reset tare

Page 71

Model PD6100 Strain Gauge/Load Cell Meter Instruction Manual

Control Menu (Contrl)

The Control menu is used to control the 4-20 mA analog output and the

relays manually, ignoring the input. Each relay and analog output can be programmed independently for manual control. Selecting automatic control sets all relays and analog output for automatic operation.

Advanced Features Menu

To simplify the setup process, functions not needed for most applications are located in the

Press and hold the Menu button for three seconds to access the advanced features of the meter.

Advanced Features menu.

Page 72

Model PD6100 Strain Gauge/Load Cell Meter Instruction Manual

Advanced Features Menu & Display Messages

The following table shows the functions and messages of the Advanced

Features

Display Parameter Action/Setting

filtEr

bypASs

Round

seriAl

SelEct

Functn

CutofF

Auto 0

AoutPr

menu in the order they appear in the menu.

Set noise filter value

Set filter bypass value

Select rounding value

Set serial communication parameters

Set slave ID or meter address

Select baud rate

Set transmit delay for serial communication

Select parity Even, Odd, or None with 1 or 2 stop bits

Set byte-to-byte timeout

Enter the Select menu (function, cutoff, out)

Linear, select number of points

Set meter for linear function and select number of linearization points

Select PV1 number of linearization points

Select PV2 number of linearization points

Set PV1 for 2 to 32-point linearization Set PV2 for 2 to 8-point linearization

Scaling parameter

Scaling parameter 1

Scaling parameter 2

Set low-flow cutoff

Enter the Auto Zero function (on/off)

Program analog output parameters

Select source for the 4-20 mA output

SlaveId

baud

Tr dLY

Parity

t-byt

Linear

Pv 1

Pv 2

No PtS

SCALE

SCAL 1

SCAL 2

Source

Filter Bypass Rounding Serial Slave ID Baud rate Transmit delay

Parity

Time byte Select

Signal input conditioning

Linear

PV1 PV2 Number of

points Scale Scale 1 Scale 2

Cutoff Auto Zero Analog output

programming Source

Page 73

Model PD6100 Strain Gauge/Load Cell Meter Instruction Manual

Display Parameter Action/Setting

O-rang

u-rang

mAx

min

Calib

4 mA

20 mA

user

F1*

dI I

dO 1

ICal

15mv

20mv

100mv

200mv

stroff

v Lo

Overrange Underrange

Maximum Minimum Calibrate

4 mA output

20 mA output

User I/O F1 function key

F4 function Digital input 1

Digital output 1

Internal source calibration

15 mV calibration

20 mV calibration

100 mV calibration

200 mV calibration

Strain offset mV low

Program mA output for display overrange

Program mA output for display underrange

Program maximum mA output allowed

Program minimum mA output allowed

Calibrate 4-20 mA output (internal reference source used for scaling the output)

Enter mA output value read by milliamp meter with at least 0.001 mA resolution

Assign function keys and digital I/O

Assign F1 function key (*F1/F2/F3)

Assign F4 function (digital input)

Assign digital input 1 – 8, if expansion modules are connected

Assign digital output 1 – 8, if expansion modules are connected

Enter internal source calibration (used for scaling the meter without a signal source)

Calibrate 15 mV input range (internal reference source used for scaling the input)

Calibrate 30 mV input range (internal reference source used for scaling the input)

Calibrate 150 mV input range (internal reference source used for scaling the input)

Calibrate 300 mV input range (internal reference source used for scaling the input)

Calibrate the offset of the input circuit

Calibrate low mV input (e.g. 0 mV)

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Model PD6100 Strain Gauge/Load Cell Meter Instruction Manual

Display Parameter Action/Setting

v Hi

Copy

send

done

Diag

Input

units

Filter

ByPASS

round Functn

SCALE

Cutoff

Dsplay

RELAY

Aout

Aoutpr

SEriaL

LED t

Info

mV high Copy Send Done Diagnostics Input

Units Filter Bypass

Round Function Scale Cutoff Display Relays Analog output Analog output

programming Serial LED test Information

Calibrate high mV input (e.g. 100 mV)

Enter copy function

Send meter settings to another meter

Copy function completed

Display parameter settings

Input selection

Select the display units/tags

Filter value

Bypass value

Round value

Function selected

Scaling parameter

Cutoff value

Display assignments

Relay settings

Analog output scaling

Analog output programming

Serial communication settings

Test all LEDs

Display software and S/N information

Page 75

Model PD6100 Strain Gauge/Load Cell Meter Instruction Manual

Noise Filter (filter)

The noise filter is available for unusually noisy signals that cause an unstable process variable display. The noise filter averages the input signal over a certain period. The filter level determines the length of time over which the signal is averaged. The filter level can be set between 2 and 199. The higher the filter level, the longer the averaging time and so the longer it takes the display to settle to its final value. Setting the filter level to zero disables the filter function.

Noise Filter Bypass (bypass)

The noise filter bypass changes the behavior of the meter so that small variations in the signal are filtered out but large abrupt changes in the input signal are displayed immediately. The bypass value determines the minimum amount of signal change to be displayed immediately. All signal changes smaller than the bypass value are filtered or averaged by the meter. The noise filter bypass may be set between 0.1 and

99.9% of full scale.

Rounding Feature (round)

The rounding feature is used to give the user a steadier display with fluctuating signals. Rounding is used in addition to the filter function.

Rounding causes the display to round to the nearest value according to the rounding selected. This setting affects the last two digits, regardless of decimal point position. See examples below:

Rounding Selection

1 12.022 12.022 12.023 12.023

5 12.022 12.020 12.023 12.025

10 12.024 12.020 12.025 12.030

Actual Value

Display Value

Actual Value

Display Value

Page 76

Model PD6100 Strain Gauge/Load Cell Meter Instruction Manual

Modbus RTU Serial Communications (serial)

The meter is equipped with serial communications capability as a standard feature using Modbus RTU Serial Communication Protocol.

To communicate with a computer or other data terminal equipment, an RS-232, RS-485, or USB adapter option is required; see

Information

on page 7 for details.

Do not connect any equipment other than Precision

Warning!

Digital’s expansion modules, cables, or meters to the RJ45 M-LINK connector. Otherwise damage will occur to the equipment and the meter.

Note: More detailed instructions are provided with each optional serial

communications adapter.

Note: Refer to the ProVu

www.predig.com for details.

Modbus Register Tables located at

Ordering

When using more than one meter in a multi-drop mode, each meter must be provided with its own unique address. The meter address (Slave ID) may be programmed between 1 and 247. The transmit delay may be set between 0 and 199 ms. The parity can be set to even, odd, or none with 1 or 2 stop bits.

The PD6100 can also be connected to another PD6100 with a special PDA1200 cable, allowing the user to copy all the settings from one meter to another, using the

Copy function.

Page 77

Model PD6100 Strain Gauge/Load Cell Meter Instruction Manual

Select Menu (SElect)

The Select menu is used to select the signal input conditioner applied

to the input (linear), low-flow cutoff, Auto-zero, and analog output programming.

The multi-point linearization is part of the linear function selection.

Signal Input Conditioning (Functn)

The Function menu is used to select the signal input conditioner applied

to the input: linear. The multi-point linearization is part of the linear function selection.

Meters are set up at the factory for linear function with 2-point linearization. The linear function provides a display that is linear with respect to the input signal.

Page 78

Model PD6100 Strain Gauge/Load Cell Meter Instruction 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 PV under the linear function. The multi-point linearization can be used to linearize the display for non-linear signals such as those from level Sensors used to measure volume in odd-shaped tanks or to convert level to flow using weirs and flumes with complex exponent.

If the dual-scale Level feature has been selected, the menus for PV1 & PV2 are enabled. PV2 can be programmed with up to 8 linearization points.

Auto-Zero (Auto 0)

Auto-zero corrects for drift that can occur over time that causes the input signal to slowly change. The meter will continue to read zero despite slow and small changes to the input signal. The auto-zero value represents the percent of full scale drift that the meter will correct.

Under normal circumstances, when the signal increases quickly, by an amount greater than the auto-zero percent of full scale, the value will not be adjusted for. Slow signal changes that occur over time at increments less than the auto-zero value, will not register on the meter (example: dust on a load cell or sensor drift over time).

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Model PD6100 Strain Gauge/Load Cell Meter Instruction Manual

Low-Flow Cutoff (CutofF)

The low-flow cutoff feature allows the meter to be programmed so that the often-unsteady output from a differential pressure Sensor, at low flow rates, always displays zero on the meter.

The cutoff value may be programmed from 0 to 999999. The meter will display zero below the cutoff value. Programming the cutoff value to zero disables the cutoff feature.

Analog Output Programming (AoutPr)

The Analog Output Programming menu is used to program the behavior

of the 4-20 mA output. The following parameters and functions are programmed in this menu:

1. Source: Source for generating the 4-20 mA output (e.g. PV)

2. Overrange: Analog output value with display in overrange condition

3. Underrange: Analog output value with display in underrange condition

4. Max: Maximum analog output value allowed regardless of input

5. Min: Minimum analog output value allowed regardless of input

6. Calibrate: Calibrate the internal 4-20 mA source reference used to scale the 4-20 mA output

Analog Output Source

The source for generating the 4-20 mA output may be assigned to the process variable, maximum or minimum value reached by the process, one of the set points, or the Modbus PV input.

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.

Page 80

Model PD6100 Strain Gauge/Load Cell Meter Instruction Manual

Programmable Function Keys User Menu (user)

The User menu allows the user to assign the front panel function keys

F1, F2, F3, F4 (digital input) and up to eight digital inputs to access most of the menus or to activate functions immediately (e.g. Reset max & min). Up to eight digital outputs can be assigned to a number of actions and functions executed by the meter (e.g. Alarms, relay acknowledgement, etc.).

*If installed

Function Keys & Digital I/O Available Settings

Display Description Display Description

Rst TR

relay

Set 1

Rly d

Rly E

O Hold

d Hold

Big Hi

Big Lo

Big HL

Litmv

Lit Hi

Lit Lo

Lit HL

ZEro

Contrl

Reset tare

Relay menu

Set point 1 - 8

Disable all relays

Enable all relays

Relays & output hold

Display hold

Max on upper display

Min on upper display

Max/min upper display

mV on Lower display

Max on Lower display

Min on Lower display

Max/min Lower display

Zero

Enter control menu

disabl

AcH

reset

Rst Hi

Rst Lo

Rst HL

tare

Right

Enter

Alm 1

F On 1

F On 2

F On 3

F On 4

Disable function key

Acknowledge relays

Enter reset menu

Reset max

Reset min

Reset max & min

Capture tare

Menu button

Right arrow button/F1

Up arrow button/F2

Enter button/F3

Alarm 1 – 8

Force relay 1 on

Force relay 2 on

Force relay 3 on

Force relay 4 on

Page 81

Model PD6100 Strain Gauge/Load Cell Meter Instruction Manual

Internal Source Calibration (ICAL)

The meter is factory calibrated prior to

shipment to read in millivolts. The calibration

equipment is certified to NIST standards.

There is no need to perform an internal

calibration for new meter.

The internal source allows the user to scale the meter without applying a signal.

The use of calibrated signal sources is necessary to perform the internal source calibration of the meter.

Check calibration of the meter at least every 12 months. Each range must be recalibrated separately.

Notes:

1. mV input: If meter is in operation and it is intended to accept only one input range (e.g. 0-30 mV), recalibration of other ranges is not necessary.

2. Strain gauge: If the meter is intended to accept a strain gauge bridge input, it is recommended to use the CAL function with ratiometric compensation turned on.

3. Allow the meter to warm up for at least 15 minutes before performing the internal source calibration procedure.

Internal calibration menu is part of the Advanced Features menu.

The

1. Press and hold the Menu button for three seconds to access the advanced features of the meter.

2. Press the Up

ICAL) and press Enter.

(

3. The meter displays the first input range ( arrow to select any other range (e.g. the calibration process.

arrow button to scroll to the Internal calibration menu

15 mv), press the Up

100mv. Press Enter to start

Page 82

Model PD6100 Strain Gauge/Load Cell Meter Instruction Manual

Example of Internal Calibration for 100 mV input range:

4. The meter displays the message “stroff” (strain offset), short the SG+, SG- terminals and press Enter. The displayed (

v lo). Apply the low input signal (e.g. 0.00 mV) and

low input message is

press Enter. The display flashes for a moment while the meter is accepting the low input signal.

5. After the display stops flashing, a number is displayed with the leftmost digit brighter than the rest. The bright digit is the active digit that can be changed by pressing the Up

arrow button to move to the next digit.

Right

arrow button. Press the

6. Set the display value to correspond to the input signal being calibrated; typically 0.00 mV.

7. The display moves to the

high input calibration (v Hi). Apply the

high input signal and press Enter.

8. Set the display for the high input calibration, in the same way as it was set for the low input calibration, typically 100.00 mV.

The graphic above shows the calibration of the 100 mV input range. The other input ranges are calibrated in a similar way.

Tips:

 Low and high input signals can be any valid values within the

range of the meter.

 Observe minimum input span requirements between input 1

and input 2.

 Low input should be less than high input signal.

Page 83

Model PD6100 Strain Gauge/Load Cell Meter Instruction Manual

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. Wrong signal selection in

3. Minimum input span requirements not maintained.

Minimum Input Span

The minimum input span is the minimum difference between input 1 and input 2 signals required to complete the calibration or scaling of the meter.

Input Range Input 1 & Input 2 Span 15 mV 0.2 mV 25 mV, 30 mV 0.4 mV 150 mV 2.0 mV 250 mV, 300 mV 4.0 mV

Setup menu.

Page 84

Model PD6100 Strain Gauge/Load Cell Meter Instruction Manual

Meter Copy Function (Copy)

The Copy function is used to copy (or clone) all the settings from one

meter to other meters requiring exactly the same setup and programming (

Copy Function Requirements

To successfully copy settings from one meter to another, both meters must have the same software version and baud rate setting. See Determining Software Version, page 87 for instructions.

Warning!

Meter Copy or Cloning Instructions

1. Connect two meters using a PDA1200 meter copy cable.

2. Do not connect the two meters to the same signal source.

3. Power up both meters. Leave Clone meter in Run Mode.

4. Enter the

Advanced Features Menu on page 71.

5. Scroll to the Enter.

6. The meter displays the message flashes while sending data. The message copying is completed.

i.e. type of input, scaling, decimal point, filter, etc.).

Using standard CAT5 or other cable will cause damage to both meters. Use PDA1200 meter copy cable only.

Do not connect the two meters to the same signal source while cloning. Internal calibration may be affected.

Advanced Features menu of the Master meter; see

Copy function using the Up arrow button then press

Send. Press Enter, the display

done is displayed when

7. The Clone meter displays the message CPY rC while being programmed then the message The meter initializes and returns to Run Mode using the same settings as the Master.

8. If meter to be cloned does not respond to the data being sent, refer

Copy Function Requirements above.

done when copying is completed.

Page 85

Model PD6100 Strain Gauge/Load Cell Meter Instruction Manual

METER OPERATION

The meter is capable of accepting any signal from -250 to 250 mV in bipolar mode, or 0 to 300 mV in unipolar mode, and displaying these signals in engineering units from -99999 to 999999 ( signal could be displayed as 0 to 50000). The dual-line display can be customized by the user to operate in such a way as to satisfy a specific application. Typically the upper display is used for the process variable; while the lower display is used for engineering units, custom legend, or set point indication. The input signal can be scaled to display the process in two different scales; for example the upper display could indicate weight in pounds and the lower display could indicate percent of maximum weight capacity. The meter can also be set up to display the analog input on the upper display and the Modbus input on the lower display. The relays and analog output can be programmed to operate from the Modbus PV input if the Modbus input has been assigned to the big (main) display. During operation, the meter can be either tared or zeroed. The tare feature is useful for momentarily zeroing out of the display, in the case where there is additional weight than what is intended to be measured (e.g. a bucket on the scale is being filled with material). The meter will display a T to indicate that the display has been tared and taring is resettable via the reset tare operation. The zero feature is useful for permanent zeroing of the meter, in the case where there has been drift in the strain gauge output over time. The zero feature will zero out the display without indication or the ability to reset.

Front Panel Buttons Operation

Button Description

Press to enter or exit Programming Mode

Press to zero the meter or other parameter/ function assigned through the

Press to reset tare or other parameter/function assigned through the

Press to tare the display value or other parameters/function assigned through the

User menu

Function Keys Operation

During operation, the programmable function keys operate according to the way they have been programmed in the menu. The table above shows the factory default settings for F1, F2, and F3.

Advanced Features – User

e.g. a 0-100 mV

User menu

Page 86

Model PD6100 Strain Gauge/Load Cell Meter Instruction Manual

Maximum/Minimum Readings

The max & min readings (peak & valley) reached by the process can be displayed either continuously or momentary:

1. Display briefly by assigning to the F1-F3 function keys or to the digital inputs in the (buttons) and the digital inputs can be programmed to reset the max & min readings.

2. Display continuously by assigning either display to max/min through

Display menu.

the

To display max reading using function key:

1. Press user assigned function key/digital input to display maximum reading since the last reset/power-up.

2. To reset max/min, press the Menu button, then the Up arrow/F2 button until the Reset (

3. Press the Up arrow/F2 button to select reset high ( low (

rst Lo), or reset high and low (rst HL) is displayed and then

press the Enter/F3 button. The max and/or min displays are reset to actual values.

4. Press Menu to exit max/min display reading.

To display max/min readings continuously:

Assign either display to Max (d Hi), Min (d Lo), or toggle between Max and Min (

d HL) every 10 seconds.

User menu. Any of the F1-F3 function keys

Reset) menu is displayed.

rst Hi), reset

Page 87

Model PD6100 Strain Gauge/Load Cell Meter Instruction Manual

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 menu and consult the recommendations described below.

Diagnostics Menu (diag)

The Diagnostics menu is located in the Advanced Features menu, to

access It provides an easy way to view the programmed parameter settings for

troubleshooting purposes. Press the Enter and the Menu button to exit at any time.

For a description of the diagnostic messages,

Menu &

To determine the software version of a meter:

Diagnostics menu see Advanced Features Menu, page 71.

button to view the settings

see Advanced Features

Display Messages, page 72.

Determining Software Version

1. Go to the

2. Press Up arrow button and scroll to Information menu (

3. Press Enter to access the software number (

(

UER) information. Write down the information as it is displayed.

Continue pressing Enter until all the information is displayed.

4. The meter returns to Run Mode after displaying all the settings.

Diagnostics menu (diAG) and press Enter button.

Diagnostics

Info).

SFT) and version

Page 88

Model PD6100 Strain Gauge/Load Cell Meter Instruction Manual

Reset Meter to Factory Defaults

When the parameters have been changed in a way that is difficult to determine what’s happening, it might be better to start the setup process from the factory defaults.

Instructions to load factory defaults:

1. Enter the Advanced Features menu. See Advanced Features

, page 71.

2. Press Up arrow to go to

3. Press and hold Right arrow for three seconds, press Enter when display flashes Note: If Enter is not pressed within three seconds, the display returns to the

4. The meter goes through an initialization sequence (similar as on power-up), and loads the factory default settings.

Diagnostics menu.

Diagnostics menu

reset.

Page 89

Model PD6100 Strain Gauge/Load Cell Meter Instruction Manual

Factory Defaults & User Settings

The following table shows the factory setting for most of the programmable parameters on the meter. Next to the factory setting, the user may record the new setting for the particular application.

Model: ______________ S/N: _______________ Date: ___________

Parameter Display Default Setting User Setting

Input type

Input Range

Ratiometic

Dual-scale

Filter

Bypass

Rounding

Function

Number of points

Programming

Input 1

Display 1

Input 2

Display 2

Decimal point

Cutoff value

Auto-zero

Display assignment

Upper display

Lower display

Display intensity

Relay 1 action

Relay 1 set point

Relay 1 reset point

Polar

range

ratio

d-SCAl

filter

bypass

round

Functn

No Pts

prog

InP 1

Dis 1

InP 2

Dis 2

ddd.ddd

CutofF

Auto 0

Dsplay

big

Little

d-Inty

Act 1

Set 1

RSt 1

Polar = Uni

Range = 30mV

Ratio = Yes

No (Single scale)

0.2

Linear

Scale

0.00 mV

0.00

100.00 mV

100.00

3 places

0.000 (disabled)

0.05% of Full Scale

PV: Process variable

Eng units: mV

Automatic

10.00

5.00

Page 90

Model PD6100 Strain Gauge/Load Cell Meter Instruction Manual

Parameter Display Default Setting User Setting

Relay 2 action

Relay 2 set point

Relay 2 reset point

Relay 3 action

Relay 3 set point

Relay 3 reset point

Relay 4 action

Relay 4 set point

Relay 4 reset point

Fail-safe relay 1

Fail-safe relay 2

Fail-safe relay 3

Fail-safe relay 4

On delay relay 1

Off delay relay 1

On delay relay 2

Off delay relay 2

On delay relay 3

Off delay relay 3

On delay relay 4

Off delay relay 4

Display 1 analog out

Output 1 value

Display 2 analog out

Output 2 value

Source analog output

Overrange output

Underrange output

Maximum output

Act 2

Set 2

RSt 2

Act 3

Set 3

RSt 3

Act 4

Set 4

RSt 4

Fls 1

Fls 2

Fls 3

Fls 4

On 1

Off 1

On 2

Off 2

On 3

Off 3

On 4

Off 4

Dis 1

Out 1

Dis 2

Out 2

Source

O-rang

u-rang

mAx

Automatic

20.00

15.00

Automatic

30.00

25.00

Automatic

40.00

35.00

Off

0.0 sec

0.00

4.000 mA

100.00

20.000 mA

Process Variable

21.000 mA

3.000 mA

23.000 mA

Page 91

Model PD6100 Strain Gauge/Load Cell Meter Instruction Manual

Parameter Display Default Setting User Setting

Minimum output

Slave ID (Address)

Baud rate

Transmit delay

Parity

Byte-to-byte timeout

F1 function key

F2 function key

F3 function key

F4 Function

Digital input 1

Digital input 2

Digital input 3

Digital input 4

Digital output 1

Digital output 2

Digital output 3

Digital output 4

Password 1

Password 2

Password 3

min

SlavId

baud

Tr dly

Parity

t-byt

dI 1

dI 2

dI 3

dI 4

dO 1

dO 2

dO 3

dO 4

Pass 1

Pass 2

Pass 3

1.000 mA

247

9600

10 ms

Even

010 (0.1 sec)

Zero

Reset Tare

Tare

Acknowledge relays

Right arrow/F1

Up arrow/F2

Enter/F3

Alarm 1

Alarm 2

Alarm 3

Alarm 4

000000 (unlocked)

Page 92

Model PD6100 Strain Gauge/Load Cell Meter Instruction Manual

Troubleshooting Tips (Including FAULT & ERROR Messages)

Symptom Check/Action

No display at all Check power at power connector Not able to change setup or programming, Meter displays error message during calibration (

Meter displays

999999

-99999

fault

3. Display is unstable Check:

Display response is too slow Check filter and bypass values Display reading is not accurate Check:

Display does not respond to input changes, reading a fixed number

Display alternates between

Hi and a number

Lo and a number

Relay operation is reversed Check:

Relay and status LED do not respond to signal

Flashing relay status LEDs Relays in manual control mode or relay

Meter not communicating with application programs

If the display locks up or the meter does not respond at all Other symptoms not described above

Locd is displayed

Error)

Meter is password-protected, enter correct six-digit password to unlock Check:

1. Signal connections

2. Input selected in

3. Minimum input span requirements Check:

1. Input selected in

2. Signal at Signal connector

3. Input exceeds range selected

1. Input signal stability and value

2. Display scaling vs. input signal

3. Filter and bypass values (increase)

4. Increase Rounding value

1. Signal input conditioner selected: Linear, square root, etc.

2. Scaling or calibration

Check:

1. Display assignment, it might be displaying max, min, or set point.

Press Menu to exit max/min display readings.

1. Fail-safe in

2. Wiring of relay contacts

Check:

1. Relay action in

2. Set and reset points

interlock switches opened. Check:

1. Serial adapter and cable

2. Serial settings

3. Meter address and baud rate

Cycle the power to reboot the microprocessor. Call Technical Support for assistance.

Setup menu

Page 93

Model PD6100 Strain Gauge/Load Cell Meter Instruction Manual

Alphabetical List of Display Functions & Messages

Display Parameter Action/Setting Description

15 mv

150mv

20 mA

250mv

25 mv

30 mv

300mv

4 mA

999999

-99999

Ack

Act 1

Alm 1

Altern

A-man

Aout

Aoutpr

Auto

Auto 0

baud

big

Big Hi

15 mV

150 mV

20 mA output

250 mV 25 mV 30 mV 300 mV 4 mA output

Flashing display

Acknowledge Action 1 Alarm 1 Alternate Auto-manual Analog output Analog output

programming Automatic Auto Zero Baud rate Bipolar

Upper display

Max on upper display

Set meter for 15 mV input

15mV for Bipolar)

Set meter for 150 mV input

150mV for Bipolar)

Enter mA output value read by milliamp meter with at least 0.001 mA resolution

Set meter for ±250 mV input

Set meter for ±25 mV input

Set meter for 30 mV input

Set meter for 300 mV input

Enter mA output value read by milliamp meter with at least 0.001 mA resolution

Overrange condition Underrange condition

Acknowledge relays

Set relay 1 action

Assign digital output to Alarm 1-8

Set relay for pump alternation control

Set relay for automatic & manual reset

Enter the Analog output scaling menu

Enter analog output programming

Press Enter to set automatic operation

Enter the Auto Zero function (on/off)

Select baud rate

Press Enter to select operation with positive & negative signals (e.g. ±15 mV)

Press Enter to assign the upper display parameter (default: PV)

Assign digital input to display max on the upper display

Page 94

Model PD6100 Strain Gauge/Load Cell Meter Instruction Manual

Display Parameter Action/Setting Description

Big HL

Big Lo

break

bypASs

CapTur

Cal

Calib

Contrl

Copy

Cust

CutofF

D Hi

D HL

D Hold

D Lo

D PCt

D Pv

D Pv1

D Pv2

D r_u

D unit

Dec pt

DeLAY

dI 1

Max/min upper display

Min on upper display

Loop break Bypass Capture tare Calibrate Calibrate

Control

Copy Custom Cutoff Display high Display H&L Display hold Display low Display PCT

Display PV Display PV1 Display PV2 Display r-u Display units Decimal point Delay Digital input 1

Assign digital input to toggle max/min on the upper display

Assign digital input to display min on the upper display

Set relay condition if loop break detected

Set filter bypass value

Capture tare

Enter the Calibration menu

Calibrate 4-20 mA output (internal reference source used for scaling the output)

Enter Control menu to turn relays on/off, set analog output manually, or return meter to automatic operation

Enter copy function

Enter a custom unit or tag

Set low-flow cutoff

Select to display the max

Select to display the max & min toggling

Display hold

Select to display the min

Select to display percent of PV1 (dual-scale display)

Select to display PV

Select to display PV1 (dual-scale display)

Select to display PV2 (dual-scale display)

Select to display reading and units

Select to display engineering units or label

Set decimal point

Enter relay Time Delay menu

Assign digital input 1-8, if expansion modules are connected

Page 95

Model PD6100 Strain Gauge/Load Cell Meter Instruction Manual

Display Parameter Action/Setting Description

Diag

d-Inty

Dis 1

Dis 2

disabl

DLY 1

dO 1

done

d-SCAL

DSet 1

dsplay

Enter

Error

F On 1

FaiLSF

filter

FLS 1

Force

Functn

9ram

Diagnostics Display

intensity Display 1 Display 2 Disable Delay 1 Digital

output 1 Done Dual-Scale

Display set 1 Display Enter button Error

Force On 1 F1 function

key F2 function

key F3 function

key F4 function Fail-safe Filter Fail-safe 1 Force Signal input

conditioner Gram

Display parameter settings

Set display intensity level from 1 to 8

Program display 1 value

Program display 2 value (up to 32 points)

Disable function key

Enter relay 1 time delay setup (1-8)

Assign digital output 1 – 8, if expansion modules are connected

Copy function completed

Press Enter to select dual-scale display (Select Yes or No)

Select to display set point 1 (1-8)

Enter the Display menu

Assign digital input to Enter button/F3

Error, calibration not successful, check signal or programmed value

Force relay 1 on using digital input (1-4)

Assign F1 function key

Assign F2 function key

Assign F3 function key

Assign F4 function (digital input)

Enter Fail-safe menu

Set noise filter value

Set relay 1 fail-safe operation (1-8)

Force analog output value for loop break

Linear, select number of points

Select gram as the engineering unit

Page 96

Model PD6100 Strain Gauge/Load Cell Meter Instruction Manual

Display Parameter Action/Setting Description

ICal

Info

Inp 1

Inp 2

input

LatCH

LED t

Linear

Lit Hi

Lit HL

Lit Lo

Little

locd

Lt-CLr

mAn

mAx

mbus

min

Internal source calibration

Information Input 1

Input 2

Input Kilogram Latching Pound LED test Linear

Max on Lower display

Max/min Lower display

Min on Lower display

Lower display

Locked Latching-

cleared Manual

Maximum Modbus

Menu button Minimum

Enter internal source calibration (used for scaling the meter without a signal source)

Display software and S/N information

Calibrate input 1 signal or program input 1 value

Calibrate input 2 signal or program input 2 value (up to 32 points)

Enter Input selection menu

Select kilogram as the engineering unit

Set relay for latching operation

Select pound as the engineering unit

Test all LEDs

Set meter for linear function and select number of linearization points

Assign digital input to display max on the lower display

Assign digital input to toggle max/min on the lower display

Assign digital input to display min on the lower display

Press Enter to assign the lower display parameter (default: engineering units)

Enter password to unlock meter

Set relay for latching operation with manual reset only after alarm condition has cleared

Press Enter to manually control relays or analog output operation

Program maximum mA output allowed

Select to display Modbus input or to assign Modbus input as the analog output source

Assign digital input to Menu button

Program minimum mA output allowed

Page 97

Model PD6100 Strain Gauge/Load Cell Meter Instruction Manual

Display Parameter Action/Setting Description

No PtS

O Hold

OFF

OFF 1

On 1

O-rang

ounCE

Out 1

Out 2

pass

Pass 1

Pass 2

Pass 3

Polar

prog

Prog T

range

ratio

RELaY

reset

Right

Number of points

Relays output hold

Off

Off 1 On

On 1 Overrange Ounce Output 1 Output 2 Password Password 1

Password 2

Password 3

Polar Program Programma-

ble tare Range Ratiometric

Relay Reset Right arrow

Set meter for 2 to 32-point linearization

Assign digital input to hold all relays state

Disable relay and front panel status LED, turn relays off, program off time delay, disable Tare, turn Auto-zero off

Set relay 1 Off time delay (1-8)

Enable fail-safe operation, turn relays on, program on time delay, turn on Auto-zero

Set relay 1 On time delay (1-8)

Program mA output for display overrange

Select ounce as the engineering unit

Program output 1 value (e.g. 4.000 mA)

Program output 2 value (e.g. 20.000 mA)

Enter the Password menu

Set or enter Password 1 (Allows use of the F1–F3 function keys)

Set or enter Password 2 (Allows use of the F1–F3 function keys and changing the set/reset points)

Set or enter Password 3 (Restricts all programming & F1–F3 keys)

Enter unipolar or bipolar selection menu

Enter the Program menu

Press Enter to set meter to programmable tare and enter a value

Enter range selection menu

Press Enter to select ratiometric operation to compensate for excitation changes.

Enter the Relay menu

Press Enter to access the Reset menu

Assign digital input to Right arrow button/F1

Page 98

Model PD6100 Strain Gauge/Load Cell Meter Instruction Manual

Display Parameter Action/Setting Description

RLY 1

Rly d

Rly E

Round

RSt 1

Rst Hi

Rst HL

Rst Lo

Rst tr

Sampl

SCAL 1

SCAL 2

SCALE

SelEct

send

seriAl

Set 1

setup

SlavId

Source

stroff

tare

ton

tonne

Tr dLY

uni

Relay 1 Disable relay Enable relay Rounding Reset 1 Reset high Reset

high & low Reset low Reset tare Sampling Scale 1 Scale 2 Scale Select

Send Serial Set 1 Setup Slave ID Source Strain offset Tare Ton Tonne

Transmit delay

Unipolar

Relay 1 setup (1-8)

Assign digital input to disable all relays

Assign digital input to enable all relays

Select rounding value

Program reset point 1 (1-8)

Press Enter to reset max display

Press Enter to reset max & min displays

Press Enter to reset min display

Press Enter to reset tare

Set relay for sampling operation

Enter the Scale 1 menu for PV1

Enter the Scale 2 menu for PV2

Enter the Scale menu

Enter Select menu (function, cutoff, autozero, and analog output programming)

Send meter settings to another meter

Set serial communication parameters

Program set point 1 (1-8)

Enter Setup menu

Set Slave ID or meter address

Select source for the 4-20 mA output

Calibrate the offset of the input circuit

Enter Tare menu

Select ton (short) as the engineering unit

Select tone (metric ton) as the engineering unit

Set transmit delay for serial communication

Press Enter to select operation with positive signals only (e.g. 0-30 mV)

Page 99

Model PD6100 Strain Gauge/Load Cell Meter Instruction Manual

Display Parameter Action/Setting Description

units

unloc

u-rang

user

v Hi

v Lo

ZEro

Units Unlocked Up arrow Underrange User I/O mV high mV low

Zero

Select the display units/tags

Program password to lock meter

Assign digital input to Up arrow button/F2

Program mA output for display underrange

Assign function keys and digital I/O

Calibrate high mV input (e.g. 100 mV)

Calibrate low mV input (e.g. 0 mV)

Program function key/IO for zero function

Page 100

Model PD6100 Strain Gauge/Load Cell Meter Instruction Manual

How to Contact Precision Digital

 For Technical Support please

Call: (800) 610-5239 or (508) 655-7300

Fax: (508) 655-8990

Email: [email protected]

 For Sales Support or to place an order please

contact your local distributor or

Call: (800) 343-1001 or (508) 655-7300

Fax: (508) 655-8990

Email: [email protected]

 For the latest version of this manual please visit

www.predig.com

SFT039 Ver 3.200 & up

LIM6100_B

1/15