Acromag DT333-0700 Manuel utilisateur

USB Programmable, DIN Rail Mount, DC-Powered

Dual/Single Transmitter or Signal Splitter w/ Millivolt/

Thermocouple Inputs & Current or Voltage Outputs

Model DT333-0700, Dual Input Transmitter for

Thermocouple and ±100mV/±1V Input

USER’S MANUAL

ACROMAG INCORPORATED Tel: (248) 295-0880

30765 South Wixom Road

Wixom, MI 48393-2417 U.S.A. email: [email protected]

Data and specifications are subject to change without notice. 8501130C

Model DT333-0700

4-Wire mV/TC Dual Transmitter w/USB

Acromag, Inc. Tel: 248-295-0880 - 2 -

http://www.acromag.com

- 2 -

https://www.acromag.com

Table of Contents

GETTING STARTED ............................................................................................4

DESCRIPTION.......................................................................................................4

Key Features........................................................................................................................4

Application..........................................................................................................................4

Mechanical Dimensions .......................................................................................................5

DIN Rail Mounting & Removal..............................................................................................5

ELECTRICAL CONNECTIONS............................................................................6

SENSOR INPUT CONNECTIONS .......................................................................7

Output Connections.............................................................................................................8

Power Connections..............................................................................................................9

Optional Bus Power Connections .......................................................................................10

Earth Ground Connections .................................................................................................11

USB Connections................................................................................................................12

CONFIGURATION SOFTWARE...................................................................... 13

Quick Overview –Android .................................................................................................13

Quick Overview –Windows ...............................................................................................14

OPERATION STEP-BY-STEP.......................................................................... 17

Connections.......................................................................................................................17

Thermocouple Millivoltage Versus Temperature Reference Table ......................................18

Configuration.....................................................................................................................19

Calibration (Optional) ........................................................................................................22

Diagnostics ........................................................................................................................24

BLOCK DIAGRAM ............................................................................................. 25

How It Works.....................................................................................................................25

TROUBLESHOOTING....................................................................................... 26

Diagnostics Table...............................................................................................................26

Service & Repair Assistance ...............................................................................................27

ACCESSORIES .................................................................................................... 28

Software Interface Package................................................................................................28

USB Isolator.......................................................................................................................28

USB A-B Cable....................................................................................................................28

USB A-mini B Cable............................................................................................................28

USB OTG Cable ..................................................................................................................29

DIN Rail Bus Connector Kit .................................................................................................29

End Stops...........................................................................................................................29

SPECIFICATIONS .............................................................................................. 30

Model Number ..................................................................................................................30

Input (Each).......................................................................................................................30

Model DT333-0700

4-Wire mV/TC Dual Transmitter w/USB

Acromag, Inc. Tel: 248-295-0880 - 3 -

http://www.acromag.com

- 3 -

https://www.acromag.com

Output (Each) ....................................................................................................................33

USB Interface.....................................................................................................................34

Power................................................................................................................................34

Enclosure & Physical..........................................................................................................35

Environmental...................................................................................................................35

Agency Approvals ..............................................................................................................36

Reliability Prediction..........................................................................................................36

Configuration Controls.......................................................................................................36

REVISION HISTORY......................................................................................... 37

All trademarks are the property of their respective owners.

IMPORTANT SAFETY CONSIDERATIONS

You must consider the possible negative effects of power, wiring, component, sensor, or software failure in the design of

any type of control or monitoring system. This is very important where property loss or human life is involved. It is

important that you perform satisfactory overall system design and it is agreed between you and Acromag, that this is your

responsibility.

The information of this manual may change without notice. Acromag makes no warranty of any kind regarding this

material, including, but not limited to, the implied warranties of merchantability and fitness for its intended purpose.

Further, Acromag assumes no responsibility for any errors that may appear in this manual and makes no commitment

to update, or keep current, the information contained in this manual. No part of this manual may be copied or

reproduced in any form without the prior written consent of Acromag, Inc.

This manual is for dual DT333 4-wire transmitters (4-wire refers to having separate isolated power) that

convert two channels of thermocouple or low DC voltage signals to isolated voltage or current output signals.

However, if your application requires dual 2-wire (loop-powered) transmitter instead, please refer to the

similar DT233 model. For DC voltage and current input signals, please refer to other DT33x (4-wire) and DT23x

(2-wire loop-powered) models.

Model DT333-0700

4-Wire mV/TC Dual Transmitter w/USB

Acromag, Inc. Tel: 248-295-0880 - 4 -

http://www.acromag.com

- 4 -

https://www.acromag.com

GETTING STARTED

DESCRIPTION

Symbols on equipment:

Means “Refer to User’s Manual

(this manual) for additional

information”.

Each I/O channel of the DT333-0700 is modeled after an ANSI/ISA Type IV

transmitter. Isolated input channels interface with thermocouple sensors (type J, K,

T, R, S, B, E or N) or ±100mV/±1V signal sources and modulate isolated DC outputs

that may drive current or voltage. This dual channel device is unique in that it may

operate as a dual transmitter, a single transmitter, or a CH1 signal splitter. Units are

set up, calibrated, and rescaled using configuration software and a USB connection

to Windows-based PC’s (Windows 7 and later versions only), or using a USB-OTG

cable to Android smartphones or tablets using the Agility mobile app. Units provide

adjustable input and output ranges, output signals for voltage or current, three-way

and channel-to-channel isolation, lead-break detection, cold-junction

compensation, and variable input filtering.

Key Features

•Digitally configured and calibrated w/ Windows software via USB, or a wired

USB-OTG connection to Android smartphones or tablets.

•Dual Channels in a thin 17.5mm wide enclosure for high-density mounting.

•Operates as a dual transmitter, a single transmitter, or a CH1 signal splitter.

•High measurement accuracy and linearity with 16-bit I/O conversion.

•Adjustable/scalable inputs and outputs.

•TC Type J, K, T, R, S, B, E, N, ±100mV, or ±1V input signal support.

•TC inputs are linearized with respect to temperature and include Cold-

Junction Compensation which may be turned on/off.

•Supports both Celsius and Fahrenheit temperature units.

•Variable digital input filter adjustment.

•Separate short-circuit protected voltage and current output terminals at each

output supports ±10V, ±5V, 0-10V, 0-5V, or 0-20mA, 4-20mA output.

•Output channels can transmit Normal or Reverse Acting output signals.

•Up-scale or down-scale lead-break/burnout detection.

•Reverse-polarity protected 6-32VDC power is bus/redundant power ready.

•Wide ambient temperature operation from -40°C to +70°C.

•Thoroughly tested and hardened for harsh environments.

•CE Approved.

•FCC Conformity Class B

•cULus Listed - Class I/Division 2 - Haz. Loc., ATEX, & IECEx.

Application

For additional information on

these devices and related topics,

please visit our web site at

www.acromag.com.

These dual transmitters are designed for high-density mounting on T-type DIN rails

and may be mounted side-by-side on 0.7-inch (17.5mm) centers and support 6-32V

DC power via terminals on the unit, or optionally via power wired to a DIN-rail bus

connector. Each channel isolates a thermocouple or low voltage input signal and

can mate with grounded or non-grounded sensors. They drive isolated outputs that

source current or voltage with support for 0-20mA, 4-20mA, or ±10V, ±5V, 0-10V,

and 0-5V output ranges.

Model DT333-0700

4-Wire mV/TC Dual Transmitter w/USB

Acromag, Inc. Tel: 248-295-0880 - 5 -

http://www.acromag.com

- 5 -

https://www.acromag.com

Mechanical Dimensions

Units may be mounted to 35mm

“T” type DIN rail (35mm, type

EN50022), and side-by-side on 0.7-

inch centers.

WARNING: IEC Safety Standards

may require that this device be

mounted within an approved

metal enclosure or sub-system,

particularly for applications with

exposure to voltages greater than

or equal to 75VDC or 50VAC.

DIN Rail Mounting & Removal

NOTE: It is recommended that this

unit be mounted upright on a DIN

rail allowing free air flow intake

from the bottom vent to flow

through the unit and out the top

vent. This will allow the unit to

run cooler, perform better and

help to extend the life of the

electronics.

Refer to the following figure for attaching and removing a unit from the DIN rail. A

spring-loaded DIN clip is located on the input side bottom. The opposite rounded

edge at the bottom of the output side allows you to tilt the unit upward to lift it

from the rail while prying the spring clip back with a screwdriver. To attach the

module to T-type DIN rail, angle the top of the unit towards the rail and place the

top groove of the module over the upper lip of the DIN rail. Firmly push the unit

downward towards the rail until it snaps into place. To remove it from the DIN rail,

first separate the input terminal blocks from the bottom side of the module to

create a clearance to the DIN mounting area. You can use a screwdriver to pry the

pluggable terminals out of their sockets. Next, while holding the module in place

from above, insert a screwdriver into the lower path of the bottom of the module to

the DIN rail clip and use it as a lever to force the DIN rail spring clip down while

pulling the bottom of the module outward until it disengages from the rail. Then

simply lift it from the rail.

Model DT333-0700

4-Wire mV/TC Dual Transmitter w/USB

Acromag, Inc. Tel: 248-295-0880 - 6 -

http://www.acromag.com

- 6 -

https://www.acromag.com

ELECTRICAL CONNECTIONS

WARNING –EXPLOSION HAZARD –Do not disconnect equipment unless power has

been removed or the area is known to be non-hazardous.

WARNING –EXPLOSION HAZARD –Substitution of any components may impair

suitability for Class I, Division 2.

WARNING –EXPLOSION HAZARD –The area must be known to be non-hazardous

before servicing/replacing the unit and before installing.

Wire terminals can accommodate 14–28 AWG (2.08–0.081mm2) solid or stranded

wire with a minimum temperature rating of 90oC. Input wiring may be shielded or

unshielded type. Ideally, output wires should be twisted pair, or shielded twisted

pair. Terminals are pluggable and can be removed from their sockets by prying

outward from the top with a flat-head screwdriver blade. This model allows

thermocouples or low voltage inputs to be wired to TB1 and drivers separate

outputs. Strip back wire insulation 0.25-inch on each lead and insert the wire ends

into the cage clamp connector of the terminal block. Use a screwdriver to tighten

the screw by turning it in a clockwise direction to secure the wire (0.5-0.6Nm

torque). Use adequate wire insulation and follow proper wiring practice, as

common mode voltages can exist on signal wiring. As a rule, output wires are

normally separated from input wiring for safety, as well as for low noise pickup.

Model DT333-0700

4-Wire mV/TC Dual Transmitter w/USB

Acromag, Inc. Tel: 248-295-0880 - 7 -

http://www.acromag.com

- 7 -

https://www.acromag.com

Sensor Input Connections

Sensor wires are wired directly to transmitter input terminal TB1 (channel 1) or TB3

(channel 2) at the bottom of the module (the spring-loaded DIN clip side), as shown

in the connection drawing below. Observe proper polarity when making input

connections.

•Transmitter input signals are separately isolated from the outputs, each

other, and power.

•TC inputs use ± polarized terminals at TB1 and TB3, observe proper polarity.

The positive input is on the left and labeled “+”, and the negative input is to its

right. See connection figure below per input model. Each output channel may

drive current or voltage from separate channel terminals that share a return.

Model DT333-0700

4-Wire mV/TC Dual Transmitter w/USB

Acromag, Inc. Tel: 248-295-0880 - 8 -

http://www.acromag.com

- 8 -

https://www.acromag.com

Output Connections

(To DC Current or DC Voltage

Terminals)

Outputs are short-circuit protected

from damage.

This transmitter is modeled after ANSI/ISA Type 4 transmitters in which unit power,

is separate from the input and output, except this unit includes two channels.

•Output connections are polarized. Tandem current and voltage output

terminals at each isolated output channel share an output return (RTN).

Current output is sourced from I Out+ and returned to RTN. Voltage

output is sourced positive at V Out+ with respect to RTN. Only one channel

output terminal (voltage or current) may be loaded at a time.

•Variations in load resistance has negligible effect on output accuracy

when load limits are respected with respect to output type (see below).

Observe proper polarity. Note that twisted-pair wiring is often used to connect the

longest distance between each field transmitter output and the remote load as

shown above. Additionally, shielded twisted pair wiring is recommended for best

results. An output connection to earth ground at each output return will help

protect the circuit from damage in noisy environments.

WARNING: For compliance to applicable safety and performance standards,

the use of twisted pair output wiring is recommended. Failure to adhere to

sound wiring and grounding practices as instructed may compromise safety,

performance, and possibly damage the unit.

TIP - Ripple & Noise: Place additional capacitance at the load to help reduce the

60Hz/120Hz ripple sometimes present in industrial applications. For large 60Hz

ripple, connect an external 1uF or larger capacitor directly across the load to reduce

excess ripple. For sensitive applications with high-speed acquisition at the load,

high frequency noise may be reduced significantly by placing a 0.1uF capacitor

directly across the load, and as close to the load as possible.

Model DT333-0700

4-Wire mV/TC Dual Transmitter w/USB

Acromag, Inc. Tel: 248-295-0880 - 9 -

http://www.acromag.com

- 9 -

https://www.acromag.com

Power Connections

The power terminals are reverse

polarity protected.

IMPORTANT –External Fuse: If

this unit is powered from a supply

capable of delivering more than 3A

to the unit, it is recommended that

potential fault current be limited

via a high surge tolerant fuse rated

for a maximum current less than

3A (for example, see Bel Fuse MJS

or RJS fuse types).

The unit is powered from 6-32V DC (36V DC peak) by connecting power as shown

below. This transmitter can be optionally powered (or redundantly powered) via

the DIN rail bus when coupled to an optional DIN rail bus connector (Acromag

Model 1005-063) with a bus terminal block (Acromag 1005-220 or 1005-221). This

optional power connection method can allow several modules to share a single

power supply without wiring power to each power terminal block individually.

•Power connections are isolated from the inputs and outputs. The supply

voltage should be from 6-32V DC. This voltage must never exceed 36V DC

peak, or damage to the unit may result.

•Variations in power supply voltage between the minimum required and

32V maximum, has negligible effect on transmitter accuracy.

•Note the placement of earth ground at power. The power cable shield and

DC- should ideally be grounded closest to the module. The input and

output circuit commons are capacitively coupled to earth ground at DC-

through high-voltage isolation capacitors, offering some protection if their

circuits happen to float relative to power (not recommended).

Power Connections…

CAUTION: Risk of Electric Shock –More than one disconnect switch may be

required to de-energize this equipment before servicing.

IMPORTANT –External Fuse: If a unit is powered from a supply capable of

delivering more than 3A to the unit, it is recommended that this current magnitude

be limited via a high surge tolerant fuse rated for less than 3A (for example, see Bel

Fuse MJS or RJS fuse types).

Model DT333-0700

4-Wire mV/TC Dual Transmitter w/USB

Acromag, Inc. Tel: 248-295-0880 - 10 -

http://www.acromag.com

- 10 -

https://www.acromag.com

Optional Bus Power Connections

TIP: How many units may share a

bussed connection to power? This

device consumes up to 1.6W. For

a bussed power connection, it is

recommended that you fuse-limit

the maximum supply current to 3A

or less including inrush. The turn-

ON inrush current may peak up to

twice its DC value. To calculate

the safe maximum number of units

that can share this supply

connection, multiply 1.5A and your

supply voltage and divide the

result by 1.6W. For this model,

this is roughly equivalent to the

number of supply volts. That is, a

24V supply fused with 3A may

drive 24 units safely.

Power is normally wired to the TB5 terminals of the unit as shown on the previous

page. However, this device is equipped to be optionally or redundantly powered via

a DIN rail bus connector (Acromag 1005-063) mated to an optional plug-in terminal

block (Acromag 1005-220 or 1005-221, depending on left or right-side wire entry).

Any power input via the bus connector is diode-coupled to the same point in the

circuit as unit power connected at power terminal TB5. You could power multiple

units by snapping them together along the DIN rail bus using connector 1005-063,

then connecting a mating terminal block (select a Left or Right-side connector, see

figure below). While the intent of the bus power connector is to allow several units

to conveniently share a single supply, you could also use the bus power connector

to redundantly power units (with local power also applied at TB5), allowing a

backup supply to maintain power to the units should the main supply at TB5 fail.

Acromag TTBUS-KIT connector kit contains bus connector 1005-063, plus left-side

terminal 1005-220, and right-side terminal 1005-221, allowing units to snap

together, side-by-side, along the DIN rail and share the power connection.

Important –End Stops: If this module uses the optionally powered (or redundantly

powered) via the DIN rail bus for hazardous location installations (Class I, Division 2

or ATEX/IECEx Zone 2) it should use two end stops (like Acromag 1027-222) to

secure the terminal block and module (not shown).

Optional Bus Power

Connections…

The figure below shows how to wire power to the optional bus terminal block when

mated to the bus connector. Note that power is wired to the rightmost bus

terminals on the right, or the left-most terminals on the left. Observe proper

polarity.

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