Turtle Tough PD8-6080-6H0-TU User manual

DSS EX Explosion-Proof Transmitter & Controller
Instruction Manual
TURTLE TOUGH
Unit 12, 634-644 Mitcham Rd • Vermont VIC 3133 Australia
Phone: [phone] • Email: [e-mail] www.turtletoughsensors.com
Modbus Transmitter/Controller
•Modbus®RTU Master, Slave, or Snooper Mode
•Poll and Display up to 16 Process Variables
•Two (2) 0-20 mA, 4-20 mA, 0-5 V, 1-5 V, and ±10 V Inputs
•Math functions Capabilities
•Isolated 24 VDC @ 25 mA Transmitter Power Supply
•Multi-Pump Alternation Control
•Signal Input Conditioning for Flow & Round Horizontal Tank
•Programmable Displays & Function Keys
•32-Point, Square Root, or Exponential Linearization
•Up to Three 4-20 mA Analog Outputs Available
•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

DSS EX Explosion-Proof Transmitter and Controller Instruction Manual
2
Disclaimer
The information contained in this document is subject to change without notice. Turtle
Tough makes no representations or warranties with respect to the contents hereof; and
specifically disclaim any implied warranties of merchantability or fitness for a particular
purpose.
Caution
Read complete instructions prior to installation
and operation of the scanner.
Warning!
Risk of electric shock or personal injury. Hazardous voltages exist
within enclosure. Installation and service should be performed
only by trained service personnel.
Warning!
•This product is 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. Turtle Tough shall not be held liable for damages
resulting from such improper use.
•Failure to follow installation guidelines could result in death or
serious injury. 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
requirements.
•Information in this manual supersedes all enclosure, compliance,
and agency approval information included in additional product
manuals included with this product.
Limited Warranty
Turtle Tough warrants this product against defects in material or workmanship for the
specified period under “Specifications” from the date of shipment from the factory. Turtle
Tough’s liability under this limited warranty shall not exceed the purchase value, repair,
or replacement of the defective unit.
Registered Trademarks
Modbus®is a Registered Trademark ofSchneider Automation Inc. All other trademarks
mentioned in this document arethe property oftheir respective owners.
© 2019 Turtle Tough All rights reserved.
www.turtletoughsensors.com
!

DDS EX Explosion-Proof Transmitter and Controller Instruction Manual
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Table of Contents
Table of Contents ----------------------------------------- 3
Table of Figures ------------------------------------------- 4
Introduction------------------------------------------------- 5
Ordering Information ------------------------------------ 6
Specifications ---------------------------------------------- 7
Operating Modes ----------------------------------------------7
Master & Snooper Settings---------------------------------7
PV Settings ------------------------------------------------------7
Display Settings------------------------------------------------7
Math Functions-------------------------------------------------8
Serial Communications--------------------------------------8
General------------------------------------------------------------8
Relays -------------------------------------------------------------9
Isolated 4-20 mA Transmitter Output -------------------9
Digital Inputs & Outputs-------------------------------------9
Dual Process Input------------------------------------------ 10
MeterView Pro ------------------------------------------------ 10
Product Ratings and Approvals; ----------------------- 11
Compliance Information ------------------------------ 12
Safety ------------------------------------------------------------ 12
Electromagnetic Compatibility-------------------------- 12
Safety Information -------------------------------------- 13
Installation ------------------------------------------------ 13
Unpacking------------------------------------------------------ 13
Pre-Installed Conduit/Stopping Plug------------------ 14
Mounting ------------------------------------------------------- 14
Cover Jam Screw -------------------------------------------- 14
Transmitter Supply Voltage Selection (P+, P-) ---- 14
Connections--------------------------------------------------- 15
Required & Factory Wired Connection--------------- 15
Connectors Labeling-------------------------------------- 16
Power Connections --------------------------------------- 16
Serial Communications Connections ----------------- 17
Using PROVU Serial Adapters--------------------------- 19
F4 Digital Input Connections---------------------------- 19
Relay Connections ---------------------------------------- 19
Switching Inductive Loads------------------------------- 20
4-20 mA Output Connections--------------------------- 20
Analog Output Transmitter Power Supply----------- 20
Interlock Relay Feature ---------------------------------- 21
Analog Input Signal Connections---------------------- 21
Digital I/O Connections----------------------------------- 23
External Switch Contacts -------------------------------- 23
Setup and Programming------------------------------ 24
Overview-------------------------------------------------------- 24
SafeTouch®Buttons ---------------------------------------- 24
Front Panel Buttons and Status LED Indicators -- 25
ScanView Software ----------------------------------------- 26
ScanView Installation------------------------------------- 26
Display Functions & Messages ------------------------- 27
Menu Navigation Tip---------------------------------------- 30
Setting Numeric Values ----------------------------------- 30
Main Menu ----------------------------------------------------- 30
Serial Communications (serial)----------------------- 31
Scanner Mode Selection ---------------------------------- 32
Operating Modes (nmode) --------------------------------- 32
How to Enable Process Variables (PVs) ------------- 32
Master Mode (nmastr) ----------------------------------- 33
Snooper Mode (Snoopr) ----------------------------------- 34
How to Select 5 or 6-Digit Registers ------------------ 35
Slave Mode (Slave) -------------------------------------- 35
Setting Up the Scanner (setup)------------------------- 36
Setting Up the Process Variables (PVs) (pv setup)
----------------------------------------------------------------- 37
Setting the Display Decimal Point (disp.dp)--------- 37
Setting the Float Decimal Point (Flot..dp)----------- 37
Scaling the PV Display Values (sCale)-------------- 38
Scale Menu ------------------------------------------------- 38
Setting Up the Displays (dsplay setup)------------- 39
Display Line 1 Parameters (Line 1 dsplay)------ 39
Display Line 2 Parameters (Line 2 dsplay) ------ 39
Display Intensity (d-IntY)------------------------------- 39
Display Line 1 Menu (Line 1 dsplay)-------------- 40
Display Line 2 Menu (Line 2 dsplay)-------------- 41
Setting the Tags (tAg) & Units (units) -------------- 42
Application Example 1 ----------------------------------- 42
Application Example 2 --------- Error! Bookmark not
defined.
Setting the Relay Operation (relay) ------------------ 45
Relay Setup Menu (relay setup) ------------------- 45
Setting the Relay Action (act 1) ------------------------ 46
Programming Set (set) & Reset (rst) Points -------- 46
Setting Fail-Safe Operation (failsf) -------------------- 46
Programming Time Delay (delay) --------------------- 46
Relay Action for Communications Break (break) -- 47
Relay Action for Loss of 4-20 mA Input (Loop Break)
----------------------------------------------------------------- 47
Relay and Alarm Operation Diagrams---------------- 47
High Alarm Operation (Set > Reset)------------------ 47
Low Alarm Operation (Set < Reset) ------------------ 47
High Alarm with Fail-Safe Operation (Set > Reset)
----------------------------------------------------------------- 48
Low Alarm with Fail-Safe Operation (Set < Reset) 48
Pump Alternation Control Operation------------------ 48
Relay Sampling Operation ------------------------------ 49
Relay Operation After Communications Break ---- 49
Signal Loss or Loop Break Relay Operation ------- 50
Time Delay Operation ------------------------------------ 50
Relay Operation Details ----------------------------------- 51
Overview----------------------------------------------------- 51
Relays Auto Initialization -------------------------------- 51
Fail-Safe Operation (failsf) -------------------------- 51
Front Panel LEDs ----------------------------------------- 51
Latching and Non-Latching Relay Operation------- 52
Non-Latching Relay (Auto) ----------------------------- 52
Non-Latching Relay (A-man) ------------------------- 52
Latching Relay (LatcH) ---------------------------------- 52
Latching Relay (Lt-Clr)--------------------------------- 52
Acknowledging Relays ----------------------------------- 53
Pump Alternation Control Applications (Altern) -- 53
Setting Up the Interlock Relay (Force On) Feature54
Scaling the 4-20 mA Analog Output (Aout) --------- 55
Setting Up the Password (pass) ------------------------ 56
Protecting or Locking the Scanner-------------------- 56
Making Changes to a Password Protected Scanner
----------------------------------------------------------------- 56
Disabling Password Protection ------------------------ 56
Advanced Features Menu -------------------------------- 57

DSS EX Explosion-Proof Transmitter and Controller Instruction Manual
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Advanced Menu Navigation Tips ---------------------- 57
Advanced Features Menu & Display Messages --- 58
Scan Function (SCan)------------------------------------- 60
Control Menu (Contrl)----------------------------------- 60
Noise Filter (filter) ----------------------------------------- 61
Noise Filter Bypass (bypass)--------------------------- 61
Rounding Feature (round) ------------------------------ 61
Select Menu (SELect) ------------------------------------ 61
Analog Output Source Programming (aoutpr) ---- 70
User Menu (user) ----------------------------------------- 71
Digital Input Menu (dI 1)-------------------------------- 72
Digital Output Menu (dO 1) ----------------------------- 72
Reset Menu (reset) -------------------------------------- 72
4-20 mA Output Calibration ----------------------------- 73
Input Calibration Menu (ICAL) --------------------------- 74
Recalibrating the Analog Input Channels (Ch-A &
Ch-B) --------------------------------------------------------- 74
Troubleshooting ----------------------------------------- 75
Diagnostics Menu (diag)---------------------------------- 76
Determining Software Version ------------------------- 76
Reset Scanner to Factory Defaults ------------------- 76
Testing the Display LEDs ------------------------------- 76
Scanner Operation-------------------------------------- 77
Front Panel Buttons Operation ------------------------- 77
SafeTouch®Buttons---------------------------------------- 78
Function Keys Operation --------------------------------- 78
F4 Operation -------------------------------------------------- 78
Maximum/Minimum Readings--------------------------- 78
Factory Defaults & User Settings ---------------------- 79
Service------------------------------------------------------ 81
Mounting Dimensions --------------------------------- 81
EU Declaration of Conformity ----------------------- 82
Table of Figures
Figure 1. Transmitter Supply Voltage Selection
---------------------------------------------------------- 14
Figure 2: Integrated ProVu Required
Connections ---------------------------------------- 15
Figure 3. Connector Labeling for Fully Loaded
DSS EX ----------------------------------------------- 16
Figure 4. Power Connections ----------------------- 16
Figure 5: DSS EX Connections to a Serial
Converter -------------------------------------------- 17
Figure 6. Three-Wire RS485 Connection -------- 17
Figure 7: RS-485 Wiring------------------------------- 18
Figure 8: RS-485 Two-Wire Multi-Drop Wiring- 18
Figure 9. F4 Digital Input Connections----------- 19
Figure 10. Relay Connections ---------------------- 19
Figure 11. AC and DC Loads Protection--------- 20
Figure 12. Low Voltage DC Loads Protection - 20
Figure 13. 4-20 mA Output Connections -------- 20
Figure 14. Interlock Connections ------------------ 21
Figure 15. Transmitters Powered by Internal
Supply ------------------------------------------------ 21
Figure 16. Transmitter Powered by Ext. Supply
or Self-Powered------------------------------------ 21
Figure 17. Voltage Input Connections------------ 22
Figure 18: Digital I/O Connections----------------- 23
Figure 19. Acknowledge Relays with F4
Function Key---------------------------------------- 53
Figure 20. Acknowledge Relays with Digital
Input --------------------------------------------------- 53
Figure 21: Enclosure Dimensions – Front View
---------------------------------------------------------- 81
Figure 22: Enclosure Dimensions – Side Cross
Section View ---------------------------------------- 81

DDS EX Explosion-Proof Transmitter and Controller Instruction Manual
5
Introduction
The DSS EX is a fully FM, CSA, ATEX, and IECEx approved explosion-proof product. It can be
programmed as a Modbus RTU Master, Slave, or Snooper. It is capable of scanning up to 16
variables generated by any Modbus device, which makes it ideal for tank level monitoring and
control. Its superluminous LED digits make it easily readable in smoke, dust, fog, and, with the
optional SunBright® display, even direct sunlight.
As a master, the DSS EX can read up to 16 slave devices, scales the data from each, displays
the result, and operates the internal relays and 4-20 mA output. The DSS EX in Master mode is
capable of polling up to 16 process variables (PVs); it displays all the enabled PVs in sequence,
at a user programmable scan rate; it also allows other transmitter and controllers in Snooper
mode to read any of the variables being polled by the master. As a snooper, the it listens to the
Modbus traffic and picks up a specific register or registers being polled by a master device from
a specific slave device and processes the data being read. As a slave, it is controlled by a
master device. The data sent to it by the master is scaled, displayed, and used to operate the
relays and 4-20 mA output.
Data is displayed on an adjustable intensity, dual-line, six-digit display. Its superluminous LED
digits make it easily readable in smoke, dust, fog, and direct sunlight. The upper display is a 0.6
inch, seven-segment LED display, while the lower display digit height is 0.46 inches. The DSS
EX can be powered from 85-265 VAC or 12-36 VDC. It is available with up to 4 internal relays
and 4 digital inputs/outputs.
The DSS EX comes equipped with dual analog input channels (4-20 mA and/or 0-10 VDC) for
use in Master Mode. These can be assigned to mA or volts by mapping a PV to the internal
scanner addresses 256-259, depending on the desired function.
Various math functions may be applied to the Modbus and analog inputs including addition,
difference, absolute difference, average, weighted average, multiplication, division, minimum,
maximum, draw, ratio, and concentration. This is in addition to the signal input conditioning
functions (linear, square root, programmable exponent, or round horizontal tank calculations).
The displays, relays, and the analog outputs may be assigned to PVs or to math channels C1,
C2, C3, or C4. The digital inputs/outputs can be custom-programmed for specific operations. A
digital input (F4) is standard.
Free ScanView software allows the DSS EX to be programmed directly from a PC using the
onboard USB connection. Configure multiple scanners, conveniently monitor critical
information, and Datalog right from a PC with ease, further increasing plant efficiency.

DSS EX Explosion-Proof Transmitter and Controller Instruction Manual
6
Ordering Information
Standard Display Models
Model Number Re-order Number Description
Options
Installed
PD8-6080-6H0-TU TT-DSS-6080EX-AC
Explosion-Proof Transmitter
for DSS Smart Digital
MODBUS RTU sensors
powered from 85-265 VAC
No options
PD8-6080-6H7-TU TT-DSS-6080EX-AC-RM
Explosion-Proof Controller for
DSS Smart Digital MODBUS
RTU sensors powered from
85-265 VAC
4 relays &
4-20 mA output
PD8-6080-7H0-TU TT-DSS-6080EX-DC
Explosion-Proof Transmitter
for DSS Smart Digital
MODBUS RTU sensors
powered 12-24 VDC
No options
PD8-6080-7H7-TU TT-DSS-6080EX-CC-RM
Explosion-Proof Controller for
DSS Smart Digital MODBUS
RTU sensors powered from
12-24 VDC
4 relays &
4-20 mA output
Manufactured by Precision Digital Corporation, 233 South St, Hopkinton MA 01748 USA
WARNING - Cancer and Reproductive Harm - www.P65Warnings.ca.gov
Accessories
Model Re-order Number Description
PDA6848-TU TT-DSS-6080EX-PMK
Explosion-Proof Unit Pipe Mounting Kit
(Requires 2)
PDA6848-SS-TU TT-DSS-6080EX-PMK-SS
Explosion-Proof Unit Stainless Steel Pipe
Mounting Kit (Requires 2)

DDS EX Explosion-Proof Transmitter and Controller Instruction Manual
7
Specifications
Except where noted all specifications apply to operation at +25°C.
Operating Modes
Master
Processes data read from Modbus RTU
slave devices. It polls up to 16 process
variables from 1 to 16 slave devices. The
Master is capable of scanning the selected
PVs, scaling the data, triggering relays,
performing math operations, and driving the
analog outputs.
Snooper
Listens to the Modbus traffic and picks up a
specific register or registers being polled by
a master device from a specific slave device
and processes the data being read. The
Snooper mode handles the data the same
way as the Master.
Slave
Processes data sent to it from a Modbus
RTU master device.
Note: The relays and the 4-20 mA outputs are functional in
all modes.
Master & Snooper Settings
PV Number
PV1–PV16 Enable or disable the process
variables to be polled by the Master.
Slave Id
Assign the slave ID or address (1-247, 256-
259 for mA or volts inputs) containing the
process variables to be displayed by the
selected PV.
Function
Code
Select which Modbus function code (03, 04, or 65)
to use in reading the slave device.
Register
Number
5 digit: 30001-39999, 40001-49999, or 1-
65,536
6 digit: 300001-365536 or 400001-465536
(Function Code 65 N/A here)
Specifies which register(s) to read in the
slave device. Range is dependent on
Function Code selection (65, 04, or 03) and
digits selection (5 or 6).
Data Type
Select the data format that the slave device
uses. Select between Short integer (2 byte),
Long integer (4 byte), or floating point (4
byte), Signed or Unsigned (integer only) and
byte order: 1234, 4321, 2143, or 3412 (big-
endian vs.
little-endian, or swapped).
Poll Time
1.0 to 99.9 sec. Time between read-
commands (Master mode).
Slave
Response
Timeout
0.0 to 99.9 seconds: Time allowed for the
slave to respond before the scanner
generates a communication break condition.
The master polls the slave 3 times before
starting the response timeout timer.
Slave/Snooper mode: Time the scanner will
wait for new data before going into break
condition.
Slave mode: Programming 0 disables the
timeout; the last value received will be
displayed indefinitely.
Communicati
on Break
Displays “brEAK” after the Master has polled
the slave device 3 times and the response
timeout has elapsed. The Snooper and
Slave modes go into break condition after no
new data is received within the response
timeout window. Relays can be programmed
to go on, off, or ignore the break condition.
The analog outputs can be setup to
generate a fixed mA current when a break
condition is detected.
PV Settings
Tag & Units
6-character, independent tag and units for
each PV and math channel
PV Format
DSS EX default: Decimal format
Display
Decimal
Point
Up to five decimal places or none: d.ddddd,
dd.dddd
,
ddd.ddd
,
dddd.dd
,
ddddd.d
, or
dddddd
Float
Decimal
Point
Select the number of decimals to use for the
floating point data expected from the slave or
master device (this is independent from the display
decimal point selection).
Pv & Math
Scaling
All PVs and math channels may be scaled
to represent the input data in any
engineering unit.
Example: Level transmitter = 999.999
inches.
Display Settings
Scan Mode
Automatic: 1.0 to 99.9 sec
Manual: Front panel or digital inputs
Go on alarm: Continues scanning after an
alarm is detected
Stop on alarm: Goes to the alarmed PV and
stops scanning; press Scan to resume
scanning.
Display
Scan Rate
Master/Snooper: 1 PV/second to 1 PV every
99.9 seconds
Slave: Dependent on master device (e.g.
PLC)
Note: The display scan rate is independent
of the poll time.
Display
Assignment
Display line 1 may be assigned to PV
(process values), Ch-C (math channel), PV
& units, tag & PV, tag-PV-units, C & units,
tag-C-unit, Set point 1-4, max/min PV,
max/min C.
Line 2 may be assigned to all of the above,
tag, tag & units, or off.
The tag and units are displayed alternately
for 2 sec max, when selected.
Different tags & PVs may be selected to
display on line 1 & 2 at the same time.

DSS EX Explosion-Proof Transmitter and Controller Instruction Manual
8
Math Functions
Name
Math Operation (Examples)
(P = Adder, F = Factor)
Setting
Addition
(PV1+PV2+P)*F
Sunm
Difference
(PV1-PV2+P)*F
diF
Absolute
difference
((Abs(PV1- PV2)+P)*F
diFAbS
Average
(((PV1+PV2)/2)+P)*F
AvG
Multiplication
((PV1*PV2)+P)*F
Nmulti
Division
((PV1/PV2)+P)*F
divide
Max PV
Max value of all selected PVs
Hi-pv
Min PV
Min value of all selected PVs
Lo-pv
Draw
((PV1/PV2)-1)*F
drAuw
Weighted
average
((PV2-PV1)*F)+PV1
uwavg
Ratio
(PV1/PV2)*F
Ratio
Concentration
(PV1/(PV1+PV2))*F
Concen
Math 2
Math on other math channels
Nmath2
Programmable
Constants
Constant P (Adder): -99.999 to 999.999,
default: 0.000
Constant F (Factor): 0.001 to 999.999,
default: 1.000
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)
Scanner Id
1 – 247 (Scanner Modbus address)
Baud Rate 300 – 19,200 bps
Transmit
Time Delay
Programmable 0 to 4999 ms
This is the time the scanner will wait for a
slave to respond before sending another
request on the bus. This value should be
greater than 100 ms to avoid collisions on
the bus.
Data 8 bits (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®Scanner Modbus Register
Tables located at www.astisensor.com.
General
Input/output Modbus RTU over RS-485, Two analog
inputs (4-20 mA, ±10 V)
Display Line 1: 0.60" (15 mm) high, red LEDs
Line 2: 0.46" (12 mm) high, red LEDs
6 digits each (-
99999 to 999999), with lead
zero blanking
Display
Intensity
Eight user selectable intensity levels
Overrange Values greater than
999999
cause the
display to flash
999999
Underrange Values less than
-99999
cause the
display to flash
-99999
Programming
Methods
Four front panel buttons, digital inputs, PC
and ScanView software, or Modbus
registers.
Max/Min
Display
Max/min readings are stored until reset by
the user or when power to the scanner is
turned off. User can reset by front panel
pushbuttons, digital input, or via Modbus
registers.
Password
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.
F4 Digital
Input Contacts
50k ohm pull-up to 3.3 VDC.
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
Non-Volatile
Memory
All programmed settings are stored in non-
volatile memory for a minimum of ten
years, with or without power.
Power
Options
85-265 VAC 50/60 Hz, 90-265 VDC, 20 W
max or 12/24 VDC ±10%, 15 W max
Powered over USB for configuration only.
Fuse Required external fuse: UL Recognized, 5
A max, slow blow; up to 6 scanners may
share one 5 A fuse
Isolated
Transmitter
Power Supply
Terminals P+ & P- : 24 VDC ±10%.
Selectable for 24, 10, or 5 VDC supply
(internal jumper J4). All models transmitter
supply rated @ 25 mA max.
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.
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 81.

DDS EX Explosion-Proof Transmitter and Controller Instruction Manual
9
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)
Approximate
Shipping
Weight
16.0 lbs (7.26 kg)
Warranty 3 years parts and labor
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.
Electrical
Noise
Suppression
A suppressor (snubber) should be
connected to each relay contact switching
inductive loads to prevent disruption to the
microprocessor’s operation.
Recommended suppressor value:
0.01 µF/470 Ω, 250 VAC (PDX6901).
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).
Relay
Operation
Automatic (non-latching)
Latching (requires manual acknowledge)
Sampling (based on time)
Pump alternation control (2 to 4 relays)
Off (disable unused relays and enable
Interlock feature)
Manual on/off control mode
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.
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.
Time Delay 0 to 999.9 seconds, on & off relay time
delays
Programmable and independent for each
relay
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.
Auto
Initialization
When power is applied to the scanner,
relays will reflect the state of the input to
the scanner.
Isolated 4-20 mA Transmitter Output
Output Source PV1-16, math channels C1-4, set points 1-
4, 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
Communication
Break
Programmable mA output when a slave
device does not reply within the response
timeout.
Accuracy ± 0.1% of span ± 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 16 and
Figure 13 on page 20.
All models @ 25 mA max.
External Loop
Power Supply
35 VDC maximum
Output Loop
Resistance
Power supply Minimum Maximum
24 VDC 10 Ω700 Ω
35 VDC (external) 100 Ω1200 Ω
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
terminal (pin 1) to power
external 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.

DSS EX Explosion-Proof Transmitter and Controller Instruction Manual
10
Dual Process Input
Two Inputs
Two non-isolated analog inputs, each
separately field selectable:
0-20 mA, 4-20 mA;
±
10 V (0-5, 1-5, 0-10 V)
PV Analog
Channel ID
Ch-A mA: Assign PV to ID 256 or Ch-A volt:
257;
Ch-B mA: Assign PV to ID 258 or Ch-B volt:
259
Accuracy
±0.03% of calibrated span ±1 count, square
root & programmable exponent accuracy
range: 10-100% of calibrated span
Temperature
Drift
0.005% of calibrated span/°C max from 0 to
65°C ambient,
0.01% of calibrated span/°C max from -40 to
0
°
C ambient
Signal Input
Conditioning
Linear, square root, programmable exponent,
or
round horizontal tank volume calculation
Multi-Point
Linearization
2 to 32 points for PV1 and PV2
Programmabl
e Exponent
1.0001 to 2.9999
Low-Flow
Cutoff
0-999999 (0 disables cutoff function) for PV1
and PV2
Calibration
Range
Input
Range
Minimum Span
Input 1 & Input 2
4-20 mA
0.15 mA
±10 V
0.01 V
An error message will appear if the input 1 &
input 2 signals are too close together.
Input
Impedance
Voltage ranges: greater than 500 k
Ω
Current ranges: 50 - 100 Ω(depending on
resettable fuse impedance)
Input
Overload
Current input protected by resettable fuse, 30
VDC max.
Fuse resets automatically after fault is
removed.
HART
Transparency
Analog input will not interfere with existing
HART communications on the wired 4-20 mA
signal
MeterView Pro
System
Requirements
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