PRECISION DIGITAL ProtEX-MAX PD8-6310 User manual

ProtEX-MAX PD8-6310 Explosion-Proof
Pulse Input Batch Controller Instruction Manual
PRECISION DIGITAL CORPORATION
233 South Street• Hopkinton MA 01748 USA
Tel [phone] • Fax [phone] www.predig.com
Batch Controller
•Pulse, Open Collector, NPN, PNP, TTL, Switch Contact,
Sine Wave (Coil), Square Wave Inputs
•5, 10, or 24 V Flowmeter Power Supply
•K-Factor, Internal Scaling, or External Calibration
•Start, Batch, Pause, & Stop with Front Panel Buttons
•Display Batch Total + Rate, Grand Total, Batch Count or Preset
•Single or Multi-Stage Batching with up to 4 Relays
•Automatic Overflow Protection
•Manual Control or Automatic Batching
•Modern, Sleek and Practical Enclosure
•Display Mountable at 0°, 90°, 180°, & 270° Degrees
•Explosion-Proof, IP68, NEMA 4X Enclosure
•SafeTouch®Through-Glass Button Programming
•Flanges for Wall or Pipe Mounting
•Superluminous Sunlight Readable Display
•Free USB Programming Software & Cable
USB Install

ProtEX-MAX PD8-6310 Explosion-Proof Pulse Input Batch Controller Instruction Manual
2
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.
CAUTION: Read complete
instructions prior to installation
and operation of the controller.
WARNING: Risk of
electric shock or
personal injury.
Warning!
•This product is not recommended for life support applications or applica-
tions 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 dam-
ages resulting from such improper use.
•Failure to follow installation guidelines could result in death or serious in-
jury. Make sure only qualified personnel perform the installation.
•Never remove the instrument cover in explosive environments when the
circuit is live.
•Cover must be fully engaged to meet flameproof/explosion-proof require-
ments.
•Information in this manual supersedes all enclosure, compliance, and
agency approval information included in additional product manuals in-
cluded with this product.
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
MeterView®Pro is a registered trademark of Precision Digital Corporation. Modbus®is a
Registered Trademark of Schneider Automation Inc. All other trademarks mentioned in this
document are the property of their respective owners.
© 2018 Precision Digital Corporation. All rights reserved.
www.predig.com
!

ProtEX-MAX PD8-6310 Explosion-Proof Pulse Input Batch Controller Instruction Manual
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Table of Contents
Table of Contents-----------------------------------------3
Table of Figures -------------------------------------------4
Introduction-------------------------------------------------4
Ordering Information ------------------------------------5
Specifications----------------------------------------------5
General------------------------------------------------------------5
Pulse Input-------------------------------------------------------6
Batch Controller Rate/Totalizer Display ---------------6
Relays -------------------------------------------------------------7
Isolated 4-20 mA Transmitter Output-------------------7
Serial Communications--------------------------------------8
MeterView Pro --------------------------------------------------8
Product Ratings and Approvals;-------------------------9
Compliance Information ------------------------------ 10
Safety------------------------------------------------------------10
Electromagnetic Compatibility--------------------------10
Safety Information-------------------------------------- 11
Installation ------------------------------------------------ 11
Unpacking------------------------------------------------------11
Pre-Installed Conduit/Stopping Plug------------------12
Mounting -------------------------------------------------------12
Cover Jam Screw--------------------------------------------12
Transmitter Supply Voltage Selection (P+, P-) ----12
Connections---------------------------------------------------13
Required & Factory Wired Connection---------------13
Connectors Labeling--------------------------------------14
Power Connections ---------------------------------------14
Pulse Signal Connections-------------------------------15
Serial Communication Connections ------------------15
Three Wire Connections -----------------------------16
Using PROVU Serial Adapters---------------------------17
Relay Connections ----------------------------------------18
Switching Inductive Loads-------------------------------18
F4 Digital Input Connections----------------------------19
4-20 mA Output Connections---------------------------19
Analog Output Transmitter Power Supply-----------19
Interlock Relay Feature ----------------------------------19
Digital I/O Connections-----------------------------------20
External Switch Contacts--------------------------------20
Basic Operation and Programming --------------- 21
SafeTouch®Buttons----------------------------------------21
Front Buttons and Status LED Indicators-----------22
Controller Operation----------------------------------------23
Batch Control Operation Example---------------------24
MeterView®Pro Software ---------------------------------26
MeterView Pro Installation ------------------------------26
Display Functions and Messages----------------------27
Setting Numeric Values -----------------------------------29
Setting Up the Batch Controller (setup) -------------30
Scaling and Calibration ----------------------------------31
Setting the Input Signal (Input) ------------------------31
Setting the Totalizer and Batching Features (total)
-----------------------------------------------------------------31
Setting the Input Units or Custom Tags (units)---31
Setting the Decimal Point (dEc pt)-------------------32
Programming the Batch Controller (prog)-----------32
Input Calibration Method (InCAL)------------------ 33
K-Factor Calibration (Factor)---------------------- 33
Scaling the Controller (SCALE)---------------------- 34
Time Base, Total Conversion Factor & Total
Reset------------------------------------------------ 34
Batch Start Mode (mode)------------------------------ 35
Calibrating the Controller with External Source
(Cal)------------------------------------------------- 35
Setting the Display Parameter & Intensity (dsplay)
----------------------------------------------------------------- 36
Setting the Relay Operation (relay) ------------------ 37
Relay Assignment (Assign) ---------------------------- 38
Setting the Relay Action--------------------------------- 38
Setting Batch Control Relays--------------------------- 38
Programming Alarm Set and Reset Points --------- 39
Setting Fail-Safe Operation----------------------------- 39
Programming Time Delay------------------------------- 39
Relay Operation Details----------------------------------- 40
Overview----------------------------------------------------- 40
Relays Initialization --------------------------------------- 40
Fail-Safe Operation--------------------------------------- 40
Front Panel LEDs ----------------------------------------- 40
Automatic Reset (Auto)---------------------------------- 41
Pump Alternation Control-------------------------------- 41
Setting Up the Interlock Relay (Force On) Feature41
Sample Relay Operation -------------------------------- 42
Relay and Alarm Operation Diagrams---------------- 42
High Alarm Operation (Set > Reset)------------------ 42
Low Alarm Operation (Set < Reset) ------------------ 42
High Alarm with Fail-Safe Operation (Set > Reset)
----------------------------------------------------------------- 42
Low Alarm with Fail-Safe Operation (Set < Reset)42
Rate Relay Sampling Operation----------------------- 43
Total Relay Sampling Operation----------------------- 43
Time Delay Operation------------------------------------ 44
Scaling the 4-20 mA Analog Output (Aout)--------- 44
Reset Menu (reset)----------------------------------------- 45
Control Menu (Contrl)------------------------------------- 45
Setting Up the Password (pass)------------------------ 45
Protecting or Locking the Controller------------------ 45
Grand Total Reset Password & Non-Resettable
Total ---------------------------------------------------------- 46
Making Changes to a Password Protected
Controller---------------------------------------------------- 46
Disabling Password Protection ------------------------ 46
Advanced Operation and Programming ---------47
Advanced Features Menu & Display Messages--- 47
Function Keys Operation-------------------------------- 49
F4 Operation------------------------------------------------ 49
Multi-Point Calibration & Scaling ---------------------- 49
Maximum/Minimum Readings-------------------------- 49
Noise Filter (filter)----------------------------------------- 50
Noise Filter Bypass (bypass)--------------------------- 50
Rounding Feature (round)------------------------------ 50
Modbus RTU Serial Communications (serial)--- 50
Serial Communications Overview--------------------- 51
Select Menu (SElEct)------------------------------------ 52
Signal Conditioning Selection (Functn)---------- 52
Low-Flow Cutoff (CutofF) --------------------------- 52

ProtEX-MAX PD8-6310 Explosion-Proof Pulse Input Batch Controller Instruction Manual
4
Total and Grand Total Count Direction (Count) 52
Analog Output Programming (AoutPr)-----------53
Programmable Function Keys User Menu (user)-53
Troubleshooting----------------------------------------- 55
Diagnostics Menu (diag)--------------------------------55
Determining Software Version -------------------------55
Reset Controller to Factory Defaults------------------55
Factory Defaults & User Settings---------------------- 56
Troubleshooting Tips-------------------------------------- 57
Service------------------------------------------------------59
Mounting Dimensions ---------------------------------60
EU Declaration of Conformity-----------------------61
Table of Figures
Figure 1: Transmitter Supply Voltage Selection....... 12
Figure 2: Integrated ProVu Required Connections.. 13
Figure 3: Connector Labeling for Fully Loaded PD8-
6310...................................................................... 14
Figure 4: Power Connections..................................... 14
Figure 5: Flowmeter Powered by Internal Power
Supply.................................................................. 15
Figure 6: Flowmeter Powered by External Supply... 15
Figure 7: Self-Powered Magnetic Pickup Coil
Flowmeter............................................................ 15
Figure 8: NPN open Collector Input........................... 15
Figure 9: PNP Sensor Powered by Internal Supply.. 15
Figure 10: Switch Input Connections........................ 15
Figure 11: ProtEX-MAX Connections to a Serial
Converter............................................................. 15
Figure 12. Three-Wire RS485 Connection..................16
Figure 13: RS-485 Wiring ............................................16
Figure 14: RS-485 Two-Wire Multi-Drop Wiring ........17
Figure 15: Relay Connections ....................................18
Figure 16: AC and DC Loads Protection....................18
Figure 17: Low Voltage DC Loads Protection ...........18
Figure 18: F4 Digital Input Connections....................19
Figure 19: 4-20 mA Output Connections ...................19
Figure 20: Interlock Connection.................................19
Figure 21: Digital I/O Connections .............................20
Figure 22: General Four-Wire Network Connection..51
Figure 23: General Two-Wire Network Connection...51
Figure 24: Enclosure Dimensions –Front View........60
Figure 25: Enclosure Dimensions –Side Cross
Section View.........................................................60
Introduction
The ProtEX-MAX PD8-6310 offers all the functionality of the ProVu PD6310 as a fully FM, CSA,
ATEX, and IECEx approved explosion-proof product. It is a pulse input (NPN, PNP, TTL, switch
contact, sine wave, etc.) digital batch controller specifically designed for single and multi-stage
batching applications. It provides excellent but simple batch control capabilities with features such
as preclose relays and automatic overrun correction for more accurate batches and convenient
SafeTouch® through-glass buttons for simple operation and menu navigation without having to
remove the cover. The preclose deactivates a specific relay before the batch is finished in order
to allow slower fill rates and increased accuracy. Automatic overrun correction keeps the batch
size accurate over time and with system wear. The PD8-6310 includes a 24 VDC power supply
to drive the flowmeter and can be equipped with up to four internal relays and a 4-20 mA analog
output.

ProtEX-MAX PD8-6310 Explosion-Proof Pulse Input Batch Controller Instruction Manual
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Ordering Information
SunBright Display Models
85-265 VAC Model
12-24 VDC Model
Options Installed
PD8-6310-6H7
PD8-6310-7H7
4 relays & 4-20 mA output
WARNING - Cancer and Reproductive Harm - www.P65Warnings.ca.gov
Accessories
Model
Description
PDA1232
RS-232 serial adapter
PDA1485
RS-485 serial adapter
PDA7485-I
RS-232 to RS-422/485 isolated converter
PDA8232-N
USB to RS-232 non-isolated converter
PDA8485-I
USB to RS-422/485 isolated converter
PDX6901
Suppressor (snubber): 0.01 µF/470 , 250 VAC
Specifications
Except where noted all specifications apply to operation at +25°C.
General
Display
Line 1: 0.6" (15 mm) high, red LEDs
Line 2: 0.46" (12 mm) high, red LEDs
6 digits: each (-99999 to 999999), with lead
zero blanking.
Default
Display
Assignment
Display line 1 shows batch total. Display line
2 shows rate with alternating units, and can
be switched to show grand total, batch
count, or preset with the STOP key.
Custom
Display
Assignment
The Upper and Lower displays may be
assigned to rate, total, grand total, batch
count, preset, set points, units (lower display
only), alternating R & T, R & GT, preset &
rate, max & min, or a Modbus display
register. Any rate/total/grand total display
may be programmed to alternate with a
custom unit or tag.
Alternating
Display
Displays alternate every 10 seconds when
display is selected or the batch is paused.
Display
Intensity
Eight user selectable intensity levels
Display
Update Rate
5/second (200 ms)
Overrange
Display flashes 999999
Underrange
Display flashes -99999
Front Panel
NEMA 4X, IP65
Programming
Methods
Four front panel buttons, digital inputs, or
PC and MeterView Pro software.
Recalibration
All ranges are calibrated at the factory.
Recalibration is recommended at least every
12 months.
Max/Min
Display
Max/min readings reached by the process
are stored until reset by the user or until
power to the controller is cycled.
Password
Three programmable passwords restrict
modification of programmed settings and
two prevent resetting the totals.
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.
Total Password: Prevents resetting the total
manually
Gtotal Password: Prevents resetting the
grand total manually
Non-Volatile
Memory
All programmed settings are stored in non-
volatile memory for a minimum of ten years
if power is lost.
Power
Options
85-265 VAC 50/60 Hz, 90-265 VDC, 20 W
max or 12-24 VDC 10%, 15W max
Powered over USB for configuration only
Fuse
Required external fuse: UL Recognized, 5 A
max, slow blow; up to 6 controllers may
share one 5 A fuse
Isolated
Transmitter
Power Supply
Terminals P+ &P-: 24 VDC 10%.Selectable
for 24,10,or5VDC supply(internaljumperJ4).
All modelstransmittersupplyrated@ 25mA
max.
Normal Mode
Rejection
Greater than 60 dB at 50/60 Hz
Isolation
4 kV input/output-to-power line
500 V input-to-output or output-to-P+ supply
Overvoltage
Category
Installation Overvoltage Category II:
Local level with smaller transient
overvoltages than Installation Overvoltage
Category III.

ProtEX-MAX PD8-6310 Explosion-Proof Pulse Input Batch Controller Instruction Manual
6
Environmental
T6 Class operating temperature range Ta =
-40 to 60°C
T5 Class operating temperature range Ta =
-40 to 65°C
Max Power
Dissipation
Maximum power dissipation limited to 15.1
W.
Connections
Screw terminals accept 12 to 22 AWG wire
Enclosure
Explosion-proof die cast aluminum with
glass window, corrosion resistant epoxy
coating, color: blue.
NEMA 4X, 7, & 9, IP68.
Default conduit connections: Four ¾" NPT
threaded conduit openings and two ¾" NPT
metal conduit plugs with 12 mm hex key
fitting installed. Additional conduit opening
configurations may be available; verify
quantity and sizes on specific device
labeling during installation.
Mounting
Four slotted flanges for wall mounting or
NPS 1½" to 2½" or DN 40 to 65 mm pipe
mounting. See Mounting Dimensions on
page 60.
Tightening
Torque
Screw terminal connectors: 5 lb-in (0.56 Nm)
Overall
Dimensions
6.42" x 7.97" x 8.47" (W x H x D)
(163 mm x 202 mm x 215 mm)
Weight
16.0 lbs (7.26 kg)
Warranty
3 years parts & labor
Pulse Input
Inputs
Field selectable: Pulse or square wave 0-5
V, 0-12 V, or 0-24 V @ 30 kHz; TTL; open
collector 4.7 kpull-up to 5 V @ 30 kHz;
NPN or PNP transistor, switch contact 4.7
kpull-up to 5 V @ 40 Hz; Modbus PV
(Slave)
Low Voltage
Mag Pickup
(Isolated)
Sensitivity: 40 mVp-p to 8Vp-p
Minimum
Input
Frequency
0.001 Hz
Minimum frequency is dependent on high
gate setting.
Maximum
Input
Frequency
30,000 Hz (10,000 for low voltage mag
pickup)
Input
Impedance
Pulse input: Greater than 300 k@ 1 kHz.
Open collector/switch input: 4.7 kpull-up
to 5 V.
Accuracy
±0.03% of calibrated span ±1 count
Temperature
Drift
Rate display is not affected by changes in
temperature.
Multi-Point
Linearization
2 to 32 points
Low-Flow
Cutoff
0-999999 (0 disables cutoff function)
Decimal Point
Up to five decimal places or none:
d.ddddd, d.dddd, d.ddd, d.dd, d.d,or
dddddd
Calibration
May be calibrated using K-factor, internal
calibration, or by applying an external
calibration signal.
K-Factor
Field programmable K-factor converts input
pulses to rate in engineering units. May be
programmed from 0.00001 to 999,999
pulses/unit.
Calibration
Range
Input 1 signal may be set anywhere in the
range of the controller; input 2 signal may be
set anywhere above or below input 1 setting.
Minimum input span between any two inputs
is 10 Hz.
An error message will appear if the input 1
and input 2 signals are too close together.
Filter
Programmable contact de-bounce filter: 40
to 999 Hz maximum input frequency allowed
with low speed filter.
Time Base
Second, minute, hour, or day
Gate
Low gate: 0.1-99.9 seconds
High gate: 2.0-999.9 seconds
F4 Digital
Input
Contacts
3.3 VDC on contact. Connect normally open
contacts across F4 to COM.
F4 Digital
Input
Logic Levels
Logic High: 3 to 5 VDC
Logic Low: 0 to 1.25 VDC
Batch Controller Rate/Totalizer Display
Rate Display
Indication
-99999 to 999999, lead zero blanking. “R”
LED illuminates while displaying rate.
Batch Total &
Grand Total
Display
0 to 999,999; automatic lead zero blanking.
“T” LED is illuminated while displaying batch
total. “GT” LEDs are illuminated while
displaying grand total. Up to 999,999 for
batch total/preset. Up to 999,999,999 with
grand total-overflow feature. “oF” is displayed
to the left of grand total overflow and ▲ LED
is illuminated.
Batch Total
Decimal Point
Up to five decimal places or none:
d.ddddd, d.dddd, d.ddd, d.dd, d.d,or
dddddd
Total decimal point is independent of rate
decimal point.
Totalizer
Calculates total based on rate and field
programmable multiplier to display total in
engineering units. Time base must be
selected according to the time units in which
the rate is displayed.
Grand
Totalizer
Rollover
Grand totalizer rolls over when display
exceeds 999,999,999. Relay status reflects
display.
Grand Total
Alarms
Up to seven, user selectable under setup
menu. Any set point can be assigned to
grand total and may be programmed
anywhere in the range of the controller for
grand total alarm indication. Relay 1 should
always be assigned to batch.

ProtEX-MAX PD8-6310 Explosion-Proof Pulse Input Batch Controller Instruction Manual
7
Programmabl
e Delay on
Release
0.1 and 999.9 seconds; applied to the first
relay assigned
to total or grand total.
If the controller is programmed to reset total
to zero automatically when the preset is
reached, then a delay will occur before the
total is reset.
Grand Total
Reset
Via front panel button, external contact
closure on digital inputs, automatically via
user selectable preset value and time delay,
or through serial communications.
Grand Total
Reset
Password
Grand total passwords may be entered to
prevent resetting the grand total from the
front panel.
Non-
Resettable
Grand Total
The grand total can be programmed as a
non-resettable total by entering the
password “050873”.
Caution!
Once the Grand Total has been
programmed as “non-resettable”
the feature cannot be disabled.
Relays
Rating
4 SPDT (Form C) internal and/or 4 SPST
(Form A) 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
Noise suppression is recommended for each
relay contact switching inductive loads; see
page 18 for details.
Relay
Assignment
Relays may be assigned to batch control
total, sampling, rate, or grand total alarms.
Preclose
0-100% of batch size, individually user
programmable for each additional batch
control relay beyond the first.
Alarm
Deadband
0-100% of span, user programmable
High or Low
Alarm
User may program any alarm for high or low
trip point.
Unused alarm LEDs and relays may be
disabled (turn off).
Fail-Safe
Operation
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.
Relay
Operation
Batch control
Automatic (non-latching)1
Sampling
Off (disable unused relays and enable
Interlock feature)
Manual on/off control mode
Secondary Functions2
Pump alternation control (2 to 4 relays)
Latching (requires manual acknowledge)
Relay Reset
User selectable via front panel buttons,
digital inputs, or PC
1. Automatic reset only (non-latching),
when the input passes the reset point
or total is reset to zero.
2. Automatic +manual reset at anytime
(non-latching)
3. Manual reset only, at any time
(latching)
4. Manual reset only after alarm condition
has cleared (L)
Note: Digital inputs may be assigned to
acknowledge relays programmed for manual
reset. It is not recommended to change the
functions of front panel buttons to manual
reset.
Alarm Time
Delay
0 to 999.9 seconds, on & off relay time
delays
Programmable and independent for each
relay.
Alarm Auto
Initialization
When power is applied to the controller,
relays will reflect the state of the input to the
controller.1
1. Alarms are active only when the batch is running.
2. These functions are not functional when the unit is being
used as a batch controller with total set to yes.
Isolated 4-20 mA Transmitter Output
Output
Source
Rate/process, total, grand total, max, min,
set points 1-4, Modbus register, or manual
control mode
Scaling
Range
1.000 to 23.000 mA for any display range.
Calibration
Factory calibrated: 4.000 to 20.000 = 4-20
mA output
Analog Out
Programming
23.000 mA maximum for all parameters:
Overrange, underrange, max, min, and
break
Accuracy
± 0.1% FS ± 0.004 mA
Temperature
Drift
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.
Isolated
Transmitter
Power Supply
Terminals I+ & R: 24 VDC 10%. May be
used to power the 4-20 mA output or other
devices. Refer to Figure 3 on page 14 and
Figure 19 on page 19. All models @ 25mA
max.
External
Loop Power
Supply
35 VDC maximum
Output Loop
Resistance
Power supply
24 VDC
35 VDC
(external)
Minimum
10 
100 
Maximum
700 
1200 
!

ProtEX-MAX PD8-6310 Explosion-Proof Pulse Input Batch Controller Instruction Manual
8
Serial Communications
Compatibility
EIA-485
Connectors
Removable screw terminal connector
Max Distance
3,937' (1,200 m) max
Status
Indication
Separate LEDs for Power (P), Transmit
(TX), and Receive (RX)
Slave Id
1 –247 (Controller address)
Baud Rate
300 - 19,200 bps
Transmit
Time Delay
Programmable between 0 and 199 ms
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
0.01 –2.54 second
Turn Around
Delay
Less than 2 ms (fixed)
Note: Refer to the PROVU® Modbus Register Tables located
at www.predig.com for details.
Digital Inputs & Outputs
Channels
4 digital inputs & 4 digital outputs
Digital Input
Logic High
3 to 5 VDC
Digital Input
Logic Low
0 to 1.25 VDC
Digital Output
Logic High
3.1 to 3.3 VDC
Digital Output
Logic Low
0 to 0.4 VDC
Source
Current
10 mA maximum output current
Sink
Current
1.5 mA minimum input current
+5 V
Terminal
To be used as pull-up for digital inputs
only.
Connect normally open pushbuttons
across +5 V & DI 1-4.
WARNING
DO NOT use +5 V termi-
nal (pin 1) to power exter-
nal devices.
Function
Assignment
The on-board digital inputs (1-4) are
designed to mimic the behavior of the
front panel buttons (Menu, F1, F2, &
F3).
If you wish to change their behavior, re-
assign F1-F3 to the desired function,
then change the corresponding digital
input to match.
MeterView Pro
System Require-
ments
Microsoft®Windows®XP/Vista/7/8/10
Communications
USB 2.0 (Standard USB A to Micro USB
B)
Configuration
Configure device settings one at a time

ProtEX-MAX PD8-6310 Explosion-Proof Pulse Input Batch Controller Instruction Manual
9
Product Ratings and Approvals;
FM
Enclosure: Type 4X; IP66
Class I, Division 1, Groups B, C, D
Class II, Division 1, Groups E, F, G
Class III, Division 1, T5/T6
Class I, Zone 1, AEx d, IIC Gb T5/T6
Zone 21, AEx tb IIIC T90°C; Ta -40°C to +65°C
T6 Ta = -40°C to +60°C; T5 Ta = -40°C to +65°C
Certificate Number: 3047283
CSA
Class I, Division 1, Groups B, C, D
Class II, Division 1, Groups E, F, G
Class III, Division 1
Class I Zone 1 Ex d IIC
Zone 21 Ex tb IIIC T90°C
-40°C < Tamb. < +60° C; Temperature Code T6
-40°C < Tamb. < +65° C; Temperature Code T5
Enclosure Type 4X & IP66
Certificate Number: 2531731
ATEX
II 2 G D
Ex d IIC T* Gb
Ex tb IIIC T90°C Db IP68
Ta = -40°C to +*°C
*T6 = -40°C to +60°C
*T5 = -40°C to +65°C
Certificate number: Sira 12ATEX1182
IECEx
Ex d IIC T* Gb
Ex tb IIIC T90°C Db IP68
Ta = -40°C to +*°C
*T6 = -40°C to +60°C
*T5 = -40°C to +65°C
Certificate Number: IECEx SIR 12.0073
Special Conditions for Safe Use:
Use suitably certified and dimensioned cable entry device and/or plug. The equipment shall be
installed such that the supply cable is protected from mechanical damage. The cable shall not
be subjected to tension or torque. If the cable is to be terminated within an explosive atmos-
phere, then appropriate protection of the free end of the cable shall be provided. Cable must be
suitable for 90°C.
Year of Construction
This information is contained within the serial number with the first four digits representing the
year and month in the YYMM format.
For European Community: The ProtEX-MAX must be installed in accordance with the ATEX
directive 94/9/EC, and the product certificate Sira 12ATEX1182.

ProtEX-MAX PD8-6310 Explosion-Proof Pulse Input Batch Controller Instruction Manual
10
Compliance Information
Safety
UL & c-UL Listed
USA & Canada
UL 508 Industrial Control Equipment
UL File Number
E160849
Front Panel
UL Type 4X, NEMA 4X, IP65; panel gasket provided
Low Voltage
Directive
EN 61010-1:2010
Safety requirements for measurement, control, and laboratory use
Electromagnetic Compatibility
Emissions
EN 55022:2010
Class A ITE emissions requirements
Radiated
Emissions
Class A
AC Mains
Conducted
Emissions
Class A
Immunity
EN 61326-1:2013
Measurement, control, and laboratory equipment
EN 61000-6-2:2005
EMC heavy industrial generic immunity standard
RFI - Amplitude
Modulated
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)
Electrical Fast
Transients
±2kV AC mains, ±1kV other
Electrostatic
Discharge
±4kV contact, ±8kV air
RFI - Conducted
10V, 0.15-80 MHz, 1kHz 80% AM
AC Surge
±2kV Common, ±1kV Differential
Surge
1KV (CM)
Power-Frequency
Magnetic Field
30 A/m 70%V for 0.5 period
Voltage Dips
40%V for 5 & 50 periods
70%V for 25 periods
Voltage
Interruptions
<5%V for 250 periods
Note:
Testing was conducted on PD6200 and PD6300 series 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. All hardware is identical to the PD8-6310 controllers.
Declaration of Conformity available at www.predig.com

ProtEX-MAX PD8-6310 Explosion-Proof Pulse Input Batch Controller Instruction Manual
11
Safety Information
WARNINGS
•Read complete instructions prior to installation and operation of the instrument.
•Installation and service should be performed only by trained service personnel. Service
requiring replacement of internal sub-components must be performed at the factory.
•Disconnect from supply before opening enclosure. Keep cover tight while circuits are alive.
Conduit seals must be installed within 18" (450mm) of the enclosure or within 2" (50mm) for
Zone installations.
•Verify that the operating atmosphere of the instrument is consistent with the appropriate
hazardous locations certifications.
•If the instrument is installed in a high voltage environment and a fault or installation error
occurs, high voltage may be present on any lead
•Read all product labels completely and follow all instructions and requirements listed on the
labels for installation or service.
Installation
Install in accordance with applicable local and national regulations (e.g. NEC).
For Installation in USA: The ProtEX-MAX must be installed in accordance with the National Electrical
Code (NEC) NFPA 70.
For Installation in Canada: The ProtEX-MAX must be installed in accordance with the Canadian Electri-
cal Code CSA 22.1. All power supplies below 36 V and input circuits must be derived from a CSA Ap-
proved Class 2 source.
For European Community: The ProtEX-MAX must be installed in accordance with the ATEX directive
94/9/EC and the product certificate Sira 12ATEX1182.
WARNING
Disconnect from supply before opening enclosure. Keep
cover tight while circuits are alive. Conduit seals must be in-
stalled within 18" (450mm) of the enclosure or within 2"
(50mm) for Zone installations.
Wiring connectors are accessed by opening the enclosure. To access electrical connectors, remove the 2
captive screws and then remove the electronics module. Connectors are on the rear of the electronics
module.
Unpacking
Remove the instrument from packing box. Inspect the packaging and contents for damage. Report dam-
ages, if any, to the carrier.
If any part is missing or the instrument malfunctions, please contact your supplier or the factory for assis-
tance.

ProtEX-MAX PD8-6310 Explosion-Proof Pulse Input Batch Controller Instruction Manual
12
Pre-Installed Conduit/Stopping Plug
The PD8-6000 is supplied with two pre-installed conduit plugs for installations that do not require the use
of all conduit entries. The conduit/stopping plugs include an internal 12mm hexagonal socket recess for
removal. The pre-installed plugs and their installation are included in the hazardous area approvals for
the PD8 Series enclosure.
WARNING
In hazardous areas, conduit and conduit/stopping plugs require
the application of non-setting (solvent free) thread sealant. It is
critical that all relevant hazardous area guidelines be followed
for the installation or replacement of conduit or plugs.
Mounting
The ProtEX-MAX has four slotted mounting flanges that should be used for pipe mounting or wall mount-
ing. Refer to Mounting Dimensions, page 60 for details.
WARNING
Do not attempt to loosen or remove flange bolts
while the instrument is in service.
Cover Jam Screw
The cover jam screw should be properly installed once the instrument has been wired and tested in a
safe environment. The cover jam screw is intended to prevent the removal of the instrument cover in a
flameproof environment without the use of tools. Using a M2 hex wrench, turn the screw clockwise until
the screw contacts the aluminum enclosure. Turn the screw an additional 1/4 to 1/2 turn to secure the
cover. Caution: Excess torque may damage the threads and/or wrench.
Transmitter Supply Voltage Selection (P+, P-)
All controllers, including models equipped with the 12-24 VDC power option, are shipped from the
factory configured to provide 24 VDC power for the transmitter or sensor.
If the transmitter requires 5 or 10 VDC excitation, the internal jumper J4 must be configured
accordingly.
To access the voltage selection jumper:
1. Remove all the connectors.
2. Unscrew the back cover.
3. Slide the back cover about 1 inch.
4. Configure the J4 jumper, located behind the
input signal connector, for the desired
excitation voltage as shown. Figure 1: Transmitter Supply Voltage Selection

ProtEX-MAX PD8-6310 Explosion-Proof Pulse Input Batch Controller Instruction Manual
13
Connections
WARNINGS
•Static electricity can damage sensitive components.
•Observe safe handling precautions for static-sensitive components.
•Use proper grounding procedures/codes.
•If the instrument is installed in a high voltage environment and a
fault or installation error occurs, high voltage may be present on
any lead or terminal.
•Follow all fusing and wiring precautions requirements for the in-
strument integrated to the PD8 Series model number being con-
nected.
To access the connectors, remove the enclosure cover and unscrew the two captive screws that fasten
the electronics module. Signal connections are made to de-pluggable connectors on the back of the elec-
tronics module.
Some connectors may be provided already connected. These connections are required for proper opera-
tion of the ProtEX-MAX, and should not be removed unless instructed to by this manual.
Wires marked as being used for testing purposes should be removed.
Grounding connections are made to the two ground screws provided on the base –one internal and one
external.
After all connections have been completed and verified, apply power to the unit.
Required & Factory Wired Connection
The ProtEX-MAX comes with a pre-wired connection. This connection is detailed below, and must be
maintained in order for the instrument to function properly.
WARNING
Observe all safety regulations. Electrical wiring should be performed
in accordance with all agency requirements and applicable national,
state, and local codes to prevent damage to the meter and ensure
personnel safety.
Figure 2: Integrated ProVu Required Connections

ProtEX-MAX PD8-6310 Explosion-Proof Pulse Input Batch Controller Instruction Manual
14
Connectors Labeling
The connectors’ label, affixed to the controller, shows the location of all connectors available with
requested configuration.
Warning!
Do not connect any equipment other than Precision
Digital’s expansion modules, cables, or controllers to
the RJ45 M-LINK connector. Otherwise damage will
occur to the equipment and the controller.
Figure 3: Connector Labeling for Fully Loaded PD8-6310
Power Connections
Power connections are made to a two-terminal connector labeled POWER on Figure 6. The controller will
operate regardless of DC polarity connection. The + and - symbols are only a suggested wiring convention.
Figure 4: Power Connections
AC or DC
POWER
Required External Fuse:
5 A max, 250 V Slow Blow
POWER
+-
C
C

ProtEX-MAX PD8-6310 Explosion-Proof Pulse Input Batch Controller Instruction Manual
15
Pulse Signal Connections
Signal connections are made to a six-terminal connector labeled SIGNAL on Figure 7. The COM
(common) terminal is the return for the input signals.
The following figures show examples of signal connections.
Setup and programming is performed through the front panel buttons.
Figure 5: Flowmeter Powered by Internal
Power Supply
Figure 6: Flowmeter Powered by External
Supply
Figure 7: Self-Powered Magnetic Pickup
Coil Flowmeter
Figure 8: NPN open Collector Input
Figure 9: PNP Sensor Powered by Inter-
nal Supply
Figure 10: Switch Input Connections
Serial Communication Connections
The ProtEX-MAX has a 5 position terminal block for connecting RS-485 serial devices.
Figure 11 details the wiring connections from the ProtEX-MAX to an RS-485 serial converter (such as the
PDA7485 or PDA8485) for a four-wire network.
ProtEX-MAX to RS-485
Serial Converter Connections
RS-485 Serial
Converter
ProtEX-MAX RS-
485 Connections
DO
DI
DO
DI
DI
DO
DI
DO
Figure 11: ProtEX-MAX Connections to a Serial Converter
The ProtEX-MAX has three diagnostic LEDs: a Power (P) LED to show when the module is powered
properly, a Transmit Data (TX) LED to show when the module is being transmitted to by the PC side, and
a Receive Data (RX) LED to show when the module is sending data to a receiving device.
The following diagrams detail how to connect the RS-485 serial communications from the ProtEX-MAX to
a RS-485/RS-232 serial converter (PDA7485) in four wire and two wire configurations.

ProtEX-MAX PD8-6310 Explosion-Proof Pulse Input Batch Controller Instruction Manual
16
Three Wire Connections
In order to wire the 5 pins for use as a 3-wire half-duplex RS-485 connection, it is necessary to create a
jumper connection between DI –DO and DI- –DO- as shown below.
Figure 12. Three-Wire RS485 Connection
Figure 13: RS-485 Wiring
Notes:
1. Termination resistors are optional and values depend on the cable length and characteristic im-
pedance. Consult the cable manufacturer for recommendations.
2. Refer to RS-232 to RS-485 Converter documentation for further details.
3. Use shielded cable, twisted-pairs plus ground. Connect ground shield only at one location.
WARNING
Observe all safety regulations. Electrical wiring should be performed
in accordance with all agency requirements and applicable national,
state, and local codes to prevent damage to the meter and ensure
personnel safety.
F4 COM DI DI DO DO
TX
RX 1 2 3 4 51 2

ProtEX-MAX PD8-6310 Explosion-Proof Pulse Input Batch Controller Instruction Manual
17
Figure 14: RS-485 Two-Wire Multi-Drop Wiring
Notes:
1. Termination resistors are optional and values depend on the cable length and characteristic im-
pedance. Consult the cable manufacturer for recommendations.
2. Refer to RS-232 to RS-485 Converter documentation for further details.
3. Use shielded cable, twisted-pair plus ground. Connect ground shield only at one location.
WARNING
Observe all safety regulations. Electrical wiring should be performed
in accordance with all agency requirements and applicable national,
state, and local codes to prevent damage to the meter and ensure
personnel safety.
When using more than one instrument in a multi-drop or multi-point mode, each meter must be provided
with its own unique address.
Using PROVU Serial Adapters
NOTICE
PROVUexpansion modules and serial adapters are not included in
the hazardous area approvals of the ProtEX-MAX. The PDA1232
may be used only while the ProtEX-MAX is in a safe area, and will
disable some features while installed.
PROVU expansion modules and serial adapters are not recommended for use with the ProtEX-MAX. It is
recommended that any serial protocol conversion required on the RS-485 communications connection be
performed using a PDA7485 RS-232 to RS-485 or PDA8485 USB to RS-485 serial converter located in a
safe area.
!

ProtEX-MAX PD8-6310 Explosion-Proof Pulse Input Batch Controller Instruction Manual
18
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.
Figure 15: Relay Connections
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 16: 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 controller's relay screw terminals. An RC network may also be installed
across the load. Experiment for best results.
Figure 17: Low Voltage DC Loads Protection
RC Networks Available from Precision Digital
RC networks are available from Precision Digital and should be applied to each relay contact switching an
inductive load. Part number: PDX6901.
Note: Relays are de-rated to 1/14th HP (50 watts) with an inductive load.
CNONO NC NC C
RELAY4 RELAY3
4 36 5 2 1
CNONO NC NC C
RELAY2 RELAY1
4 36 5 2 1
C
R
C
R
Use a diode with a reverse
breakdown voltage two to three
times the circuit voltage and for-
ward current at least as large
as the load current.

ProtEX-MAX PD8-6310 Explosion-Proof Pulse Input Batch Controller Instruction Manual
19
F4 Digital Input Connections
A digital input, F4, is standard on the meter. This digital input connected with a normally open closure
across F4 and COM, or with an active low signal applied to F4.
Figure 18: F4 Digital Input Connections
4-20 mA Output Connections
Connections for the 4-20 mA transmitter output are made to the connector terminals labeled MA OUT.
The 4-20 mA output may be powered internally or from an external power supply.
Figure 19: 4-20 mA Output Connections
Analog Output Transmitter Power Supply
The internal 24 VDC power supply powering the analog output may be used to power other devices, if the
analog output is not used. The I+ terminal is the +24 V and the R terminal is the return.
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 41). 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 20: Interlock Connection
12-35 VDC
Power
Supply
+
4-20 mA
Input Meter
-
+
RI- I+
13 2
RELAY1
3 2 1
24 V
-
4-20 mA Input
Remote Display,
Chart Recorder, Etc.
-
+
RI- I+
MA OUT
13 2
RELAY1
3 2 1
24 V
MA OUT

ProtEX-MAX PD8-6310 Explosion-Proof Pulse Input Batch Controller Instruction Manual
20
Digital I/O Connections
The ProtEX-MAX has a 10 position terminal block for connecting digital inputs and outputs.
Figure 21: Digital I/O Connections
NOTICE
The onboard digital inputs (1-4) are configured at the factory to function
identically to the front panel pushbuttons (Menu, F1, F2, & F3) in order to
work with the SafeTouch buttons. Changing the programming of the digital
inputs will affect the function of the SafeTouch buttons.
If you wish to change the behavior of the digital inputs, re-assign F1-F3 to
the desired function, then change the corresponding digital input to match.
WARNING
Observe all safety regulations. Electrical wiring should be performed in ac-
cordance with all agency requirements and applicable national, state, and
local codes to prevent damage to the meter and ensure personnel safety.
External Switch Contacts
The ProtEX-MAX includes 4 digital inputs. These digital inputs are preconfigured at the factory to function
as external contacts to duplicate the front button functions of the instrument. The factory configuration
uses the following corresponding digital input terminals for external switch contacts.
Digital In-
put Con-
nection
Factory Default Func-
tion
I1
MENU
I2
RIGHT arrow
I3
UP arrow
I4
ENTER arrow
See Digital Inputs & Outputs in the Specification on page 8 for details on the digital inputs.
NOTICE
The digital inputs are configured at the factory to function identi-
cally to the front panel pushbuttons in order to work with the
SafeTouch buttons. Changing the programming of the digital in-
puts will affect the function of the SafeTouch buttons.
1 2 3 4 5 6
+5 I1 I2 I3 I4 O1
7 8
O2 O3
910
O4 G
DI 1-4 DO 1-4
5 VDC GND
!
!