Acromag DT336-0700 User Manual Download Page 1

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USB Programmable, DIN Rail Mount, DC-Powered
Dual/Single Transmitter or Signal Splitter w/ DC
Current/Voltage Inputs & Current or Voltage Outputs

Model DT336-0700, DC Current & Low DC Voltage Inputs
Model DT337-0700, DC ±1V/±10V Medium Voltage Inputs
Model DT338-0700, DC ±15V/±150V High Voltage Battery
Sources Inputs

USER’S MANUAL

ACROMAG INCORPORATED

Tel: (248) 295-0880

30765 South Wixom Road

Fax: (248) 624-9234

Wixom, MI 48393-2417 U.S.A.

email: [email protected]

8501129C

Summary of Contents for DT336-0700

Page 1: ...age Inputs Model DT337 0700 DC 1V 10V Medium Voltage Inputs Model DT338 0700 DC 15V 150V High Voltage Battery Sources Inputs USER S MANUAL ACROMAG INCORPORATED Tel 248 295 0880 30765 South Wixom Road Fax 248 624 9234 Wixom MI 48393 2417 U S A email sales acromag com Copyright 2018 Acromag Inc Printed in the USA Data and specifications are subject to change without notice 8501129C ...

Page 2: ...al Bus Power Connections 11 Earth Ground Connections 12 USB Connections 13 CONFIGURATION SOFTWARE 14 Quick Overview Android 14 Quick Overview Windows 15 OPERATION STEP BY STEP 18 Connections 18 Configuration 19 Calibration Optional 22 Diagnostics 24 BLOCK DIAGRAM 25 How It Works 25 TROUBLESHOOTING 26 Diagnostics Table 26 Service Repair Assistance 28 ACCESSORIES 28 Software Interface Package 28 USB...

Page 3: ...ibility 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 i...

Page 4: ...litter High measurement accuracy and linearity with 16 bit I O conversion Independently adjustable and scalable input and output ranges The DT336 input has a DC Current path for 0 4 20mA 0 11 17mA 1mA and a DC Voltage path for 0 5V 0 500mV DT337 channels have separate DC Voltage input paths for up to 1V and up to 10V DT338 channels have separate DC Voltage input paths for high level ranges to 15V ...

Page 5: ...g 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...

Page 6: ...put wires should be twisted pair or shielded twisted pair Use insulated wire to keep channels isolated Terminals are pluggable and can be removed from their sockets by prying outward from the top with a flat head screwdriver blade Input channels each have two input paths that support different nominal ranges for example DT336 allows current input to be wired to TB1 1 TB3 1 and voltage input wired ...

Page 7: ...their respective outputs at TB4 channel 1 and TB6 channel 2 and from power at TB5 Each output has separate terminals for driving current or voltage which share an output return Inputs are polarized observe proper polarity The outside terminals of TB1 and TB3 are positive inputs A B and labeled The common return for input paths A B is the middle terminal of the terminal block See connection figure ...

Page 8: ...Model DT33x 0700 4 Wire DC I V Dual Transmitter w USB Acromag Inc Tel 248 295 0880 8 http www acromag com 8 https www acromag com ...

Page 9: ...that twisted pair wiring is often used to connect the longest distance between each field output and its 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 isolated output circuit from damage in noisy environments WARNING For compliance to applicable safety and perform...

Page 10: ...ptional power connection method can allow several dual channel modules to share a single power supply without wiring power to each power terminal block individually Power connections are isolated from each input and each output 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 minimu...

Page 11: ...ircuit as unit power connected at its 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 side 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 pow...

Page 12: ...pplicable codes See the Electrical Connections Drawings for Inputs Output and Power and note the position of earth ground for each isolated entity Ground connections shown are recommended for best results and help protect the unit and its isolated circuitry by giving it a low impedance path to ground for shunting destructive transient energy away from sensitive module circuitry Avoid inadvertent c...

Page 13: ...al Isolation is recommended and required when connected to a grounded input Input 1 and USB connections are isolated from each output and power of this model USB Isolation is recommended for safety and noise suppression but required when the input signal happens to be grounded You may use Acromag model USB ISOLATOR to isolate your USB port or you can optionally use another USB signal isolator that...

Page 14: ...model Swipe left or right to view more diagrams No connection is required to just view the diagrams Android requires user permission to access external hardware If the Device List displays No Device Permission select this device and when prompted to give permission to access the USB device tap OK Configuration Tab CONFIGURE I O Once connected the app will automatically read your transmitter its mo...

Page 15: ...our separately tabbed pages as follows Communication Set up I O Config Test Calibration and Diagnostics A short description of each of these configuration pages follows Communication Set up First Connect to Unit Here Select from connected transmitters and Open Close communication with them Display the Model Serial Number and Manufacturer of the connected transmitter and report the status of commun...

Page 16: ...on page as required before calibrating the input and be sure to click the Send I O Config button Click Input Cal Instructions to begin input calibration Next when you click input Zero or Full Scale you will be prompted to apply a specific current or voltage level at TB1 CH1 or TB3 CH2 depending on your selected input range Once you have applied this signal to the correct input click OK of the prom...

Page 17: ...ck your input readings see screen at left Use this screen to verify communication with the unit or problems with your input wiring Click Start Polling to periodically read your input channels and validate operation Click Stop Polling to stop polling the input channels The simulated red lamp to the left of the button flashes slowly when the software polls the input channels Stop polling before sele...

Page 18: ...rce with an output impedance no more than 100 and set the input filter level as desired before calibrating an input 2 Connect to Voltage or Current terminal of Each Output Channel not both Wire your output load to the transmitter output appropriate for current or voltage as required by your application You will need to measure the output current or voltage very accurately to calibrate the output Y...

Page 19: ... happen to be connected to more than one unit via a USB hub you can use the Device scroll field to the right of the Device field to select another unit same model using the serial information suffix of the Device model data to discern one unit from another Once you have selected a device click the Open button to open communication with the unit With USB connected after clicking Open of the Connect...

Page 20: ...ese dual transmitter models has two input paths different by the range supported For the DT336 the first input path is at TB1 1 TB3 1 leftmost terminal of TB1 TB3 and intended for DC current only The second input path is at TB1 3 TB3 3 the rightmost terminal of TB1 TB3 and intended for DC voltage only For both the DT337 DT338 models each input path supports a different range of DC voltage input fo...

Page 21: ...desired before calibrating an input Select the nominal Output Signal Range Current or Voltage Transmitter channels may each drive current or voltage on separate channel output terminals but not both signals simultaneously Select the nominal output signal type and range the opposite signal type is disabled Only one channel output terminal current or voltage may be loaded at one time current may dri...

Page 22: ...d input filter on the Configuration page and make sure you write your selection to the unit by clicking Send I O Config For the DT336 wire an input current source to the left most input terminal of TB1 1 CH1 or TB3 1 CH2 or a voltage source to the right most terminal of TB1 CH1 or TB3 CH2 The center terminal TB1 2 or TB3 2 is the signal return for either input path of the channel For DT337 338 mod...

Page 23: ...ake sure you write your selection to the unit by clicking Send I O Config On the calibration page select the Output Channel to calibrate 1 or 2 Then click Output Cal Instructions to begin output calibration by enabling the Output adjustment controls and Zero and Full Scale buttons Use the Output Course and Fine Adjustment controls to drive the output to its precise nominal output zero i e 0mA 4 00...

Page 24: ...itter operation by polling the input channel s Click Start Polling to trigger the software to periodically read the input channel s and display their values in the fields below the polling button Note the simulated lamp next to the polling button flashes slowly each time it samples the inputs Click Stop Polling to stop polling the inputs before moving onto another tab page In the second screen at ...

Page 25: ...olated SPI bus Each 16 bit output DAC drives separate voltage and current terminals with a shared output return Output ranges are user configured scaled Power to drive the input and output circuits is provided via an isolated fly back converter operating on input voltage wired to the power terminals at TB5 or alternatively wired to optional bus power terminals along the DIN rail Setup involves sel...

Page 26: ... assistance if required Repair services are also available from Acromag POSSIBLE CAUSE POSSIBLE FIX Cannot Communicate with Unit via USB Output shifts off range when you connect USB Output Erratic Not operational or at Wrong Value Unit fails to operate or exhibits an output shift A missing USB Isolator could cause a ground loop between a grounded input 1 sensor and earth ground at the connected Pe...

Page 27: ...that either the input signal is out of range scaling is incorrect or a sensor lead has broken It can also occur due to contention between earth ground at the PC USB port and the input sensor Check and adjust the input signal as required to drive output within its linear operating range A fully upscale or down scale output can be driven by a sensor fault such as an open broken sensor lead Check inp...

Page 28: ...e Package Software Interface Package Configuration Kit Order TTC SIP USB Signal Isolator USB A B Cable 4001 112 USB A mini B Cable 4001 113 Configuration Software CDROM 5040 944 This kit contains all the essential elements for configuring DT family Transmitters Isolation is recommended for USB port connections to these transmitters and will block a potential ground loop between your PC and a groun...

Page 29: ...e each of the following terminals DIN Rail Bus Connector 1005 063 for 17 5mm TT SP DT Modules Left Side terminal block female connector 1005 220 Right Side terminal block male connector 1005 221 Two End Stops for 35 mm DIN Rails 1027 222 not shown Series SP Splitters and DT transmitters are shipped with their bus port plugged Remove this plug and insert DIN Rail Bus Connector 1005 063 shown at lef...

Page 30: ...B1 and channel 2 TB3 support different ranges On DT236 DC current is input at TB1 TB3 1 and DC voltage at TB1 TB3 3 On DT237 1V DC is input at TB1 TB3 1 and 10V at TB1 TB3 3 On the DT238 15V DC is input at TB1 TB3 1 and 150V is input at TB1 TB3 3 Signal return for the channel is TB1 TB3 2 This unit has three operating modes dual transmitter single transmitter or CH1 signal splitter Input Reference...

Page 31: ...ed and fixed per input range and filter selection within the ADC See also Normal Mode Noise Rejection and Output Response Time Input Noise Rejection Common Mode Varies with filter selection between no filtering and high filtering as follows data is measured with a 100 input unbalance Typical Common Mode Noise Rejection MODEL NO FILTER HIGH FILTER DT33x 100dB 120dB Input Noise Rejection Normal Mode...

Page 32: ...0mA 24 9Ω Shunt 2 6658 58878 1 52220 A TB1 TB3 1 0 20mA 24 9Ω Shunt 2 32768 58878 1 26110 A TB1 TB3 1 4 20mA 24 9Ω Shunt 2 37990 58878 1 20888 A TB1 TB3 1 0 11 17mA 24 9Ω Shunt 2 32768 47350 1 14582 A TB1 TB3 1 1mA 24 9Ω Shunt 32 11880 53656 1 41776 B TB1 TB3 3 0 5VDC NONE 2 6554 58982 1 52428 B TB1 TB3 3 0 0 5V DC NONE 2 32768 58982 1 26214 DTx37 INPUT RANGE xDIVIDER xGAIN A D INPUT RESOLUTION1 A...

Page 33: ...l AC Current Sensor Turns Range for DT336 Model Only AC Current Input Range Primary Turns Sensor Output Red Black 0 to 20A AC 1 0 to 11 17mA DC 0 to 10A AC 2 0 to 5A AC 4 0 to 2A AC 10 0 to 1A AC 20 AC Input Burden A function of the wire gauge resistance used for primary turns the current carrying wire being monitored AC Current Sensor to Transmitter Wiring Distance 400 feet maximum for 18 gage wi...

Page 34: ...cing a 0 1uF or 0 01uF capacitor directly across the load this can also raise RF immunity Output Ambient Temperature Effect Better than 80ppm C 0 0080 C over the ambient temperature range 20ppm C typical This includes the combined effect of zero and span drift for reference test conditions see Input Specifications Output Resolution Each output is driven by a 16 bit voltage current DAC from Texas I...

Page 35: ...irose UX60 MB 5S8 USB PIN DEFINITION 1 5V Power Transient Protected but not used by the module 2 Differential Data 3 Differential Data 4 NC Not Connected 51 Power Ground Connects directly to Signal Ground SHLD1 Signal Ground Connects directly to Signal Ground 1 Note Most Host Personal Computers except battery powered laptops will connect earth ground to the USB shield and signal ground IMPORTANT U...

Page 36: ... copper wire Program Connector 5 pin Mini USB B type socket Hirose UX60SC MB 5S8 80 DIN Rail Mounting Unit is normally mounted to 35x15mm T type DIN rails Refer to the DIN Rail Mounting Removal section for more details LED Indicators Front Panel Power PWR Green Channel Green ON indicates power is applied to unit this LED is sourced from isolated internal 3 3V rail Fault FLT Channel Output Orange E...

Page 37: ...Part 15 Class B of the FCC rules Safety Approvals cULus Listed Class I Division 2 Groups A B C D Hazardous Location or Nonhazardous Locations only These devices are open type devices that are to be installed in an enclosure suitable for the environment Consult Factory ATEX IECEx Certified ATEX IECEx Certified for Explosive Atmospheres per ATEX Directive 2014 34 EU which complies with standards EN ...

Page 38: ...determined via programmed variables set using a temporary USB connection to a host computer or laptop running a Windows compatible configuration software program specific to the transmitter model This software provides the framework for digital control of all configuration and calibration parameters and this information is stored in non volatile memory Refer to Operation Step By Step in the Techni...

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