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UM-0090-B1E 

DT90 Range User Manual 

Page 8 

RG 

 

Measurements 

What can the DT90 Measure? 

Analog 

Using its analog inputs, the DT90 can directly measure the following: 

 

DC voltage

 (50mV, 2.5V ranges) 

 

4-20mA current loop

  

 

temperature

 (RTDs) 

Digital 

The DT9

0’s counter channels allow the measurement of: 

 

pulse count

 (32 bit) 

Serial 

Various “smart sensors” can also be read: 

 

SDI-12

 based sensor networks 

 

MODBUS RTU

 via RS485 

 
 

 

Содержание Data Taker DT90L

Страница 1: ...atataker com 2019 ThermoFisher Scientific DT90 Range DT90L and DT90N User s Manual A complete guide to data acquisition data logging programming sensor wiring communications Intelligent Data Logging Products ...

Страница 2: ... IN THIS WARRANTY STATEMENT THERMO FISHER DISCLAIMS ALL OTHER WARRANTIES WHETHER EXPRESS OR IMPLIED ORAL OR WRITTEN WITH RESPECT TO THE INSTRUMENTS INCLUDING WITHOUT LIMITATION ALL IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR ANY PARTICULAR PURPOSE THERMO FISHER DOES NOT WARRANT THAT THE INSTRUMENTS ARE ERROR FREE OR WILL ACCOMPLISH ANY PARTICULAR RESULT ANY ADVICE OR ASSISTANCE FURNISHED ...

Страница 3: ... s il n est pas installé et utilisé conformément au manuel d instructions peut causer des interférences nuisibles aux communications radio Le fonctionnement de cet équipement dans une zone résidentielle est susceptible de causer des interférences nuisibles auquel cas l utilisateur devra corriger l interférence à ses propres frais Les changements ou modifications non expressément approuvés par la p...

Страница 4: ...on 9 Configuration 10 Page Description 10 Sensors 10 Global Sensor Settings 13 Data Transmission 16 Alarm 16 Setting 17 Connect 18 Page Description 18 Instantaneous Measurement 18 Page Description 18 Measurement 19 Load Data 19 Get Time 19 Clear Log 19 Firmware Update 19 Requirements 19 Update Process 20 Display Data 20 Page Description 20 About DT90 Configuration 21 Part C Sensors Channels 22 Con...

Страница 5: ... Specifications 27 Analog Channels 27 Digital Channels 27 Data Processing 27 Hardware 28 Care and Maintenance 29 Transport 29 Installation 29 Battery Installation Inspection and Replacement 29 Moisture Absorber Replacement 30 Glossary 31 Safety Information 32 General 32 Index 33 ...

Страница 6: ...oney saved The DT90 Product Family The DT90 product family includes the following models The DT90L is a low cost low power Compact variant of data logger The DT90N is a Nano variant which is smaller model of DT90 DT90 Friendly Software DT90 Configuration is a desktop based application for programming and monitoring DT90 Series data loggers This Config software requires installation in your PC It p...

Страница 7: ... with its internal battery disconnected We recommend the battery is connected as soon as practical so that it can charge from the mains adaptor or other external power source Connecting to a Host Computer In order to program the DT90 it is generally necessary to connect it to a host computer There is a cable for Connector PC for USB connection to a PC 3 The Windows New Hardware Found wizard will t...

Страница 8: ...s analog inputs the DT90 can directly measure the following DC voltage 50mV 2 5V ranges 4 20mA current loop temperature RTDs Digital The DT90 s counter channels allow the measurement of pulse count 32 bit Serial Various smart sensors can also be read SDI 12 based sensor networks MODBUS RTU via RS485 ...

Страница 9: ...iguration You can establish a connection to DT90 via USB cable Main Menu Page Description The Main Menu of DT90 Configuration provides 6 options Configuration to configure the logger for reading signal from sensors setting up data transmission and alarms Connect to establish connection to the logger Instantaneous Measurement to get instantaneous reading from logger download data set up time and cl...

Страница 10: ...in the properties pane The banner area along the top screen contains one Home button which provides a link back to Main Menu and two information tags Station Name and Logger Type The bottom of the screen displays Connection Status to the logger Figure 3 Configuration Windows Sensors Sensors menu is used to create measurement channel based on sensor s output signal There are 2 possible maximum numb...

Страница 11: ... mechanical anemometer pulse output only Status predefined pulse sensor for handling logical signal sources 1 0 Name The Name field includes the name of the given channel defined by the user up to 20 characters The name might include any string of ASCII characters Parameter The Parameter field allows to select additional options related to a given input signal type The example below shows a drop d...

Страница 12: ...sented 24 hours check box in hourly basis Selecting any of the box will prompt the logger to start measurement at the beginning of the selected hour This Other option will disable a standard measurement interval This functionality is particularly useful if the sensors connected to the data logger do not require continuous powering in which power will only activated for the time of measurement Powe...

Страница 13: ...1 However the setting does not change the method of saving numbers in the memory data are always saved in the memory with maximum precision Notes This option does not influence the maximum amount of data saved in the memory Alarm DT90 device allows to configure up to three event alarms Alarms might be set for any channels but not more than one alarm per channel In order to activate alarm on a give...

Страница 14: ...thin 26 Data type and MODBUS functions are configurable on each configuration setting User may choose data type INT integer UINT unsigned integer FLOAT floating point INT32 long integer UINT32 unsigned long integer And choose MODBUS functions Coils function 1 Discrete Inputs function 2 Holding Registers function 3 Input Registers function 4 Notes Block read or block transfer refers to reading acti...

Страница 15: ...ly need a certain time to stabilise their operating parameters This time differs between different sensor manufacturers and models The Measurement Delay field shows integer numbers ranging from 0 120 s It is important to remember that cumulating the delay in initiating measurement with the measurement time might in particular cases result with incapability to obtain the smallest measurement interv...

Страница 16: ... disable pin feature Figure 14 GPRS configuration The last setting is transmission interval for FTP data you can have 2 types of interval depending on the limit you defined within Alarm page The first one is a normal interval which happen when the reading value is not exceeding alarm limit and the next one is alarm interval which happen when the value exceeds defined alarm limit Figure 15 Transmis...

Страница 17: ...able across all 26 channels Figure 16 Alarm configuration and placement on a channel SMS Configuration SMS Configuration page is used to set destination number for SMS there are 3 numbers available and user can also set service center for SMS Figure 17 SMS Configuration and Alarm Text Alarm Text Alarm test is used to define the content of SMS alarm there are 3 entries available each is related to ...

Страница 18: ...hether the user want to upload the existing configuration or start the program from scratch Instantaneous Measurement Page Description Instantaneous Measurement menu provides a simple interface to run a test on the recent loaded configuration as well as download the data getting logger clock and clearing the log Instantaneous Measurement windows comprises the following elements Device Logs which o...

Страница 19: ...on is shown in a filled up bar Get Time This function will show logger s current time and time synchronisation status Clear Log This function will clear the content of Device Logs Firmware Update Requirements DT90 configuration software enables updates of DT90 logger s software via USB interface Before starting software update ensure that the connection between the computer and the logger is stabl...

Страница 20: ...and transmission are not available during update process Figure 20 Firmware Update Windows Display Data Page Description Display Data menu provides a simple interface to plot the unloaded data into a chart Display Data windows comprises the following elements The small top portion is Folder Path which allow user to select folder with the data file The lower portion is Data Files with Chart button ...

Страница 21: ...he chart The Y axis will automatically follow the maximum minimum values within data range Beside chart you may also see the data in tabular form and also convert it into CSV file Conversion will take the currently displayed data or all parameters in the file About DT90 Configuration This page contains additional information about the application such as version number and release date for that ve...

Страница 22: ... quantity This section also includes some general information about how the DT90 s analog measurement system works and how to get the best out of it What Can Be Measured Analog channel types voltage current and current loops RTD PT100 Digital channel types pulse counters Serial channel types SDI 12 MODBUS RTU Connector and Pin Assignment Figure 22 Connectors setup for DT90L analog green serial bro...

Страница 23: ...gh each connectors are compatible for three signals there is a limitation of 2 sensors per connector So users are required to have wiring plan based on sensor numbers This wiring will make impact on channel declaration when programming on DT90 Config Figure 25 9 pin Analog Inputs Connector Voltage Inputs A1 A2 A3 A4 There are 2 possible connections pin 5 for Vin and pin 1 for Gnd pin 8 for Vin and...

Страница 24: ... A3 A4 RTD channel will read 3 wire PT100 and there are 2 possible connections pin 3 4 on one lead and pin 1 on other lead pin 6 7 on one lead and pin 1 on other lead Figure 29 RTD Channels Wiring Configuration Digital Serial Input Connectors D1 D2 Counter Inputs D1 Counter inputs use 6 pin connector with a total 3 connected sensors Figure 30 6 pin Digital Inputs Connector These counter inputs rel...

Страница 25: ... may provide reading for 32 parameters per sensor Figure 33 SDI 12 Channels Wiring Configuration The logger supports RS485 connection on MODBUS RTU protocol please use the following figure for wiring configuration Users may connect one MODBUS sensor with a maximum 16 parameters The logger support four MODBUS functions coils discrete inputs holding registers input registers however there is only a ...

Страница 26: ...sy wiring so user does not need to look up this manual for reference The colour indicates pin assignment from pin 1 to pin 8 for Connector A2 Pin 9 is not used while PE is cable shielding to be connected to earth Figure 35 Socket Labels Colour cable marking Notes 1 The above connector labelling is based on socket number in which identical to connector ID in this manual The reason of using letter i...

Страница 27: ...ies on connector A1 A2 and D1 up to 200 mA Digital Channels Counter Inputs Inputs 3 dedicated counter channels Connector D1 Serial Inputs SDI 12 1 SDI 12 input on connector D2 support up to 2 sensors Each sensor can have 32 values on 3 additional SDI12 measurements Modbus Client master 1 serial RS485 port dedicated with Modbus client protocol support up to 10 sensors in block read Available on con...

Страница 28: ...SMS messages Data Send data to a FTP server SIM interface SIM Socket 1 8V 3V Networks LTE FDD Band 1 3 5 7 8 20 28 LTE TDD Band 38 40 WCDMA Band 1 5 8 GSM GPRS EDGE 850 900 1800MHz Physical and Environment Construction Black anodized aluminum cast case Dimensions o DT90L 180 x 100 x 80 mm excluding plug and antenna o DT90N 100 x 70 x 38 mm excluding plug and antenna Weight 1 25 kg DT90L 0 5 kg DT9...

Страница 29: ...le creating slope between two long edges User may utilise mast holder accessories to provide the required slope Sensors Wiring Insert the sensor cable plugs according to their markings dots on the plug and the socket and then screw them in applying gentle force until you feel slight resistance The plug fixing nut is designed only to prevent disconnection of the plug from the connector It does not ...

Страница 30: ...ire procedure once again after 15 minutes If the data logger continues to give no answer contact the manufacturer to consult further actions If possible check the internal power source voltage using a DC voltmeter at each disconnection by checking the voltage at the plug connectors a meter with thin probes is required Moisture Absorber Replacement Inspect the absorber every time you open the enclo...

Страница 31: ...number of bits that the ADC uses to represent the analog signal the greater the resolution the smaller the changes in input signal that can be resolved detected RTD Resistance Temperature Detector A resistive sensor that changes resistance with changes in temperature sampling speed The maximum rate at which analog to digital conversions can be done This includes any channel selection time settling...

Страница 32: ...anufacturer s service centre or a service center authorized by the manufacturer Any unauthorized device modifications or repairs are prohibited and will result in warranty becoming void In order to minimize the risk of failure and hazards associated with it the device should not be installed in extremely unfavorable conditions that present the following risks o Submerging the device enclosure as a...

Страница 33: ...Instantaneous Measurement 9 18 19 Get Time 18 19 Load Data 18 19 Name 10 11 18 Parameter 11 Precision 13 Safety Information 32 Scaling 12 13 Sensors 10 22 30 External analog 11 Internal analog 11 MODBUS RTU 6 8 11 14 22 25 Pulse Counter 11 SDI12 6 8 11 14 22 25 27 Status 10 11 18 20 Wind Gauge 11 Specifications 27 Data Processing 27 Hardware 7 28 Unit 13 Voltage Output 26 Authorised distributor In...

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