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Summary of Contents for BK Precision DAS240-BAT
- Page 1 DAS240-BAT Portable Multi-Channel Recorder User Manual Test Equipment Depot - 800.517.8431 - 99 Washington Street Melrose, MA 02176 TestEquipmentDepot.com...
- Page 2 Safety Summary The following safety precautions apply to both operating and maintenance personnel and must be followed during all phases of operation, service, and repair of this instrument. Before applying power to this instrument: • Read and understand the safety and operational information in this manual. •...
- Page 3 Do not use this instrument in an electrical environment with a higher category rating than what is specified in this manual for this instrument. You must ensure that each accessory you use with this instrument has a category rating equal to or higher than the instrument’s category rating to maintain the instrument’s category rating.
- Page 4 • In air temperatures exceeding the specified operating temperatures. • In atmospheric pressures outside the specified altitude limits or where the surrounding gas is not air. • In environments with restricted cooling air flow, even if the air temperatures are within specifications. •...
- Page 5 known-operating voltage sources and test for both DC and AC voltages. Do not attempt any service or adjustment unless another person capable of rendering first aid and resuscitation is present. Do not insert any object into an instrument’s ventilation openings or other openings. Hazardous voltages may be present in unexpected locations in circuitry being tested when a fault condition in the circuit exists.
- Page 6 Safety Symbols DANGER indicates a hazardous situation which, if not avoided, will result in death or serious injury. WARNING indicates a hazardous situation which, if not avoided, could result in death or serious injury CAUTION indicates a hazardous situation which, if not avoided, will result in minor or moderate injury A Caution.
- Page 7 CE Declaration of Conformity Safety testing has been performed on submitted samples and found in compliance with: European Low Voltage directive 2014/35/UE: • IEC 61010-1 European EMC directive 2014/30/UE: Emission standard EN 61326-1, EN 31326-2-1 Immunity standard EN 61326-1, EN 61326-2-1 Installation category •...
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Page 8: Table Of Contents
Contents Contents 1 Introduction 1.1 Home screen ..........1.2 Electrical Connections . -
Page 9: Contents
CONTENTS viii 6.1 F(t) Menu keys ..........6.2 Screen Setup . - Page 10 CONTENTS 15 Specifications A Measurement accuracy for thermocouple A.1 Measurement accuracy: Pm ........A.2 Voltage of thermocouple (mV) .
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Page 11: Introduction
Chapter 1 Introduction Figure 1.1: Front View The DAS 240 programmable recorder measures and records up to 200 channels. Measurement of voltages (from 1mV to 100V), currents, temperatures (thermocouple, Pt100, Pt1000), resistances, and as logic channels are possible. Each channel’s units are configured using the previous measurement types. The dialog between the user and the recorder is made easier thanks to an intuitive interface on a wide capacitive and color 10”1 touchscreen. -
Page 12: Electrical Connections
CHAPTER 1. INTRODUCTION Figure 1.2: Home Screen 1. Setup Menu 7. Channel Setup Menu 2. Trigger Menu 8. Channel and Function display configuration 3. Logic Channel Config Menu 9. Recording Display 4. XY Display 10. Recording Replay Screen 5. F(t) Display 6. -
Page 13: Extension Module
CHAPTER 1. INTRODUCTION Figure 1.4: Extension cord (70cm) Figure 1.5: Terminal Block 7. Ground connection 8. 24 point connector for an access to the external module. 1.3 Extension Module Signals are connected to the unit via terminal blocks, see Figure 1.5. These blocks accomodate 20 connections each, and may be chanined together to provide more channels. -
Page 14: Recording Period
CHAPTER 1. INTRODUCTION Figure 1.6: 5.08 mm 3 contact step connectors 1.4 Recording Period Acquisition sample rate is configureable. The sample period is set to one of the following settings: 1, 2, 5, 10, 20, 50 and 100ms. When 3-wire thermocouple measurements (PT100 and PT1000) are made, the time periods are doubled. -
Page 15: Setup
Chapter 2 Setup 2.1 Switching On Prior to switching on the unit, connect the extension modules. If there are no modules connected or detected, the unit displays “Error:Ti” in the lower righthand corner of the startup screen. Turn on the recorder by pressing the button at the top of the appliance. When the appliance is on, the ON/OFF button is lit in blue. -
Page 16: In Case Of Error
CHAPTER 2. SETUP Figure 2.2: Setup Screen Figure 2.3: On Off dialog If the unit stops without pressing the ON/OFF button (abrupt stop of the power supply), the current setup will not be saved. The unit setup at next start will be the last one saved. 2.1.2 In Case of Error •... -
Page 17: Extension Modules
CHAPTER 2. SETUP Note: If errors persist, please contact B&K for further assistance. 2.2 Extension Modules Up to 10 extension modules may be connected at a time. Figure 2.4: Extension Module To assemble multiple terminal block modules: • Screw the electrical connectors’ plate to each additional extension •... -
Page 18: Temperature Measurement With A Thermocouple
CHAPTER 2. SETUP Figure 2.5: Extension Module Figure 2.6: Terminal Block 2.3.2 Temperature Measurement With a Thermocouple The voltage resulting from thermocouple effect must be measured between the + and - terminals of the relevant input. The “GND” terminal is not used. 2.3.3 Temperature Measurement With Pt100/Pt1000 The Pt100/Pt1000 probe must be connected to the + and - terminals. -
Page 19: Resistance Measurement
CHAPTER 2. SETUP 2.3.4 Resistance Measurement Connect the resistance source between the “+” and “-” terminals and connec the “-” and “GND” terminals together. A current is sourced into the “+” terminal. For greatest resolution and accuracy, configure the resistance range appropriately. For example, measuring a sensor with a range of 10-50 ohms is best done using the 100 Ohm range. -
Page 20: External Power
CHAPTER 2. SETUP Figure 2.9: Current Shunt Value Setup 2.4 External Power The DAS240 is powered and charged using a 15V DC, 5A power supply. Warning: To minimize the risk of shock, the instrument chassis and cabinet must be connected to an electrical safety ground. -
Page 21: Battery
CHAPTER 2. SETUP 2.5 Battery The unit s equipped with a lithium-ion battery. If the unit has remained unused for more than one month, check its charge status and recharge it if necessary. Note: Battery replacement and service is to be performed by B&K or Sefram staff. Contact your local service center for details. -
Page 22: Calibration
CHAPTER 2. SETUP Figure 2.10: Offset Calibration Screen 2.6 Calibration You can easily calibrate the recorder inputs for the voltage and thermocouple offsets. This will remove any offset present on different channels. To do so: 1. Let the unit work for 20 minutes (ambient temperature 68-77F (20-25C)) 2. -
Page 23: Keypad Lock
CHAPTER 2. SETUP 2.7 Keypad Lock You can also lock the recorder completely, no key will be accessible. • Press the “Setup” key • Press the “Additional Option” key • Press the “Locking the recorder” key • Press the green check mark to confirm and lock the unit. The keypad lock will occur 10 seconds after confirmation. -
Page 24: System Setup
Chapter 3 System Setup General configuration of the appliance, monitoring of the alarm outputs, network address TCP/IP, calibration of the channels, update of the internal software. Figure 3.1: Setup Menu 1. Language 7. Load default settings 2. Screen dimming time 8. -
Page 25: Screen Shut Off (Dimming)
CHAPTER 3. SYSTEM SETUP Figure 3.2: System languages 3.0.2 Screen shut off (dimming) The amount of time the screen backlight stays at full brightness may be set from 1-30 mins or kept on (disabled). Use the arrow keys to change the screen shut off timeout. 3.0.3 VNC VNC (Virtual Network Computing) allows the user to mirror the front panel using a viewer on a networked computer. -
Page 26: Network
CHAPTER 3. SYSTEM SETUP Figure 3.3: Network configuration dialog 3.0.7 Network The current IP addresses of the network is shown within the network button. If there is no network connection, 0.0.0.0 is shown. If more than one network connection is made (wired/wireless), both addresses are shown. Pressing the button opens the network configuration dialog. -
Page 27: Channel Setup
Chapter 4 Channel Setup 4.1 All Channels Screen Access the channel setup menu from the Home screen and press the “Channels” button. The screen shown in Figure appears. Figure 4.1: Channels Menu The channel configuration screen provides quick access to individual channel settings. Each column lists a set of values for each channel. -
Page 28: Individual Channel Screen
CHAPTER 4. CHANNEL SETUP Figure 4.2: Channel Configuration Screen 4.1.1 Individual Channel Screen The complete set of parameters, values and options are also viewable for a single channel on a single screen. To open this screen, press the box displaying the Channel ID (A1 for example). This opens a window for setting a greater number of values than available from the channels table. -
Page 29: Xy Plot
Chapter 5 XY Plot The XY mode is accessible via the main menu by pressing the XY key. In this mode, one of the channel drives the horizontal axis, and the other channels give points on the vertical axis. For example, if the channel driving the horizontal axis is 1V and the channel for the vertical axis is at 95F, the recorder plots a point at (1,95). - Page 30 CHAPTER 5. XY PLOT Figure 5.2: XY Screen Setup Dialog • Plot type - F(t) or XY • Point display - Dots or vectors • Display Numerical Values - show the numerical panel showing values in a table • Display Boundaries - show or hide the axes •...
- Page 31 CHAPTER 5. XY PLOT 1. The keys : allow to choose the group to view 2. By pressing a specific channel : • The graph terminals are bound to this chan- nel. • In real time acquisition, the instant value will show up.
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Page 32: T) Plot
Chapter 6 F(t) Plot This mode displays the channel signals versus time, much like an oscilloscope. The time per division is called the “Timebase” on this unit. The display is normally in a scrolling mode displaying real time data. This changes somewhat when recording data. -
Page 33: Screen Setup
CHAPTER 6. F(T) PLOT 6.2 Screen Setup Figure 6.2: Screen Setup Dialog From this dialog, the type of plot, numerical values, math, grid scales, number of plots, and colors are set here. The number of plots is available when in F(t) mode, and is limited to the number of signals measured. The maximum number is 10. -
Page 34: Freeze Screen And Cursor Measurements
CHAPTER 6. F(T) PLOT Undo the last cursor action completed Opens a dialog box for setting the signal to measure with the cursors. Zoom the selected channel to fit within the current cursor settings. Set the vertical axis parameters for the selected channel. The range is the vertical span of the channel. -
Page 35: Time Base
CHAPTER 6. F(T) PLOT Figure 6.5: Time Base Setting (Time/Division) 6.4 Time base The trace time scale may be set to a number of values. Pressing the Timebase button on the right of the F(t) plot screen brings up the dialog as shown in Figure 6.5. 6.5 Math Math functions may be applied to multiple channels. - Page 36 CHAPTER 6. F(T) PLOT Figure 6.6: F(t) Channel math settings dialog Figure 6.7: F(t) Channel math functions dialog Drawing Math function Calculation Notes The lowest negative voltage Minimum bottom The highest positive volt- Maximum age peak...
- Page 37 CHAPTER 6. F(T) PLOT Drawing Math function Calculation Notes Peak to Peak Max-Min The most frequent value below the median The most frequent value High above the median Amplitude High - Low ∗ 100 M ax High On positive oscillation Amplitude ∗...
- Page 38 CHAPTER 6. F(T) PLOT Drawing Math function Calculation Notes Measurement of the time of 1st positive pulse. It is Width of positive impulsion measured at 50% of ampli- tude Measurement of the time of Width of negative impul- 1st negative pulse. It is sion measured at 50% of ampli-...
- Page 39 CHAPTER 6. F(T) PLOT Figure 6.8: Math Menu...
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Page 40: Numeric Display
Chapter 7 Numeric Display The numerical window allows to visualize in real time the values of each channel. See Figure 7.1. The number of channels shown per screen depends on the number of channels selected. Each display page is accessed by pressing the right and left arrows. -
Page 41: Recording
Chapter 8 Recording The DAS240 can save data to internal storage. The user can then retrieve the data and review it on the unit, save it to a USB drive, and retrieve it via the Ethernet interface or from USB drives. To create recordings, press the “record”... - Page 42 CHAPTER 8. RECORDING Figure 8.2: Record screen Figure 8.3: Recording started...
- Page 43 CHAPTER 8. RECORDING Figure 8.4: Recording playback Figure 8.5: Load saved recording file dialog...
- Page 44 CHAPTER 8. RECORDING Figure 8.6: Saved recording loaded Test Equipment Depot - 800.517.8431 - 99 Washington Street Melrose, MA 02176 TestEquipmentDepot.com...
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Page 45: Triggering Recordings
Chapter 9 Triggering recordings 1. Record file path 4. Start condition 2. Recording size 5. Stop condition 3. Reading storage rate (reading period) 6. Trigger arm state Figure 9.1: Trigger Menu The start and stop functions control the conditions that initiate data recording to disk. Opening the “Start”, or “Stop”... -
Page 46: Waiting Start Condition
CHAPTER 9. TRIGGERING RECORDINGS 9.1 Waiting start condition Starting a recording at a prescribed later time or date. Figure shows the 2 dialogs for configuring each condition. Waiting on a delay, will wait for the prescribed time and proceed with a recording. Waiting for date delays recording until a specific time and date. -
Page 47: Triggering
CHAPTER 9. TRIGGERING RECORDINGS Figure 9.3: Start condition dialog – Stop: no action – Rearm: a new file is launched waiting for the Start trigger • View of the active channels, of the recording time, of the pre-launch Note: A message “Impossible” shows up when the saving possibilities are exceeded. Fix this by reducing the sampling speed or the number of channels. -
Page 48: Single Threshold
CHAPTER 9. TRIGGERING RECORDINGS Figure 9.4: Trigger Threshold Setup 9.3.2 Single threshold Channel: selection of the channel, on which the trigger threshold is applied Threshold 1 / Threshold 2: selection of the threshold to settle; each channel is tested with reference with 2 thresholds, i.e. -
Page 49: Trigger On Logic Channels
CHAPTER 9. TRIGGERING RECORDINGS Figure 9.5: Multiple Threshold Trigger Screen Trigger examples: • Edge trigger: you need a change of status Example: Channel A1, rising edge, threshold = 0V: triggers only if the signal status changes from negative to positive •... - Page 50 CHAPTER 9. TRIGGERING RECORDINGS Figure 9.6: Trigger type setup screen Figure 9.7: Logic Trigger Setup Screen...
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Page 51: Alarms
Chapter 10 Alarms 4 configurable alarm signals allow signaling from the recorder through the digital port. The alarm signals are high (5V) when the alarm condition is detected. The main display’s alarm status section indicates the status of the alarms. The main display alarm status is “sticky” in that when alarm triggers, the field is set to active (red). See Figure 10.3. -
Page 52: Analog/Math/Timing Signal Alarm
CHAPTER 10. ALARMS Figure 10.2: Alarm dialog Figure 10.3: Alarm Status To clear an alarm, press the on screen box containing the alarm statuses. 10.2 Analog/Math/Timing signal alarm An alarm based on analog signal levels, a math function, or a “logical function” is set by selecting the “trigger” function on the Alarm dialog (Figure 10.2). -
Page 53: Logic (Digital) Signal Alarm Trigger
CHAPTER 10. ALARMS Figure 10.4 Figure 10.5 10.4 Logic (Digital) signal alarm trigger An alarm based on the logic state of the digital input is configured by selecting the “Logical Channels” option. Following the typical convention of a 1, 0 and X to denote true, false and “dont’t care” respectively, is used to set the digital patter to trigger on. -
Page 54: Alarm On Recording Start (Trigger Acquisition)
CHAPTER 10. ALARMS Figure 10.6: Analog combination trigger Figure 10.7: Digital trigger 10.5 Alarm on recording start (Trigger Acquisition) An alarm is also available for signaling the start of a recording. Select the “Trigger Acquisition” option to enable this type of alarm. - Page 55 CHAPTER 10. ALARMS Figure 10.8: Trigger on alarm Test Equipment Depot - 800.517.8431 - 99 Washington Street Melrose, MA 02176 TestEquipmentDepot.com...
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Page 56: Logic Channels
Chapter 11 Logic Channels Up to 12 logic channels can be recorded simultaneously with the analog channels. In addition, 4 timing channels are also available for measuring duty cycle, RPM and pulse count. 11.1 Logic Input Connector This is a DB-25 connector located on the top of the unit. #pin Name of the signals #pin... -
Page 57: Logic Channel Setup
CHAPTER 11. LOGIC CHANNELS 11.2 Logic channel setup To set the logic channels, press the “logic channels” button on the “Home” screen, or from the “F(t)” screen, click within the logic signal portion of the screen when present, See figure 11.2. The configuration screen will open and resemble Figure 11.3. -
Page 58: Alarm Outputs
CHAPTER 11. LOGIC CHANNELS Access the setup for these functions from the “Home” screen and pressing the . Then navigate to the channels K1-4. See Figure 11.4. To configure each channel, either change the parameters on this screen by opening the menus per field in the table, or open the configuration screen for a single channel by pressing the channel ID (i.e. -
Page 59: File Management
Chapter 12 File Management The recorder is capable of creating recordings, screenshots, and saving device setup configurations. All of these are stored as files, “*.rec” for recordings, “*.bmp” for screenshots, and “*.cfg” files for configurations. The file view dialog Figure 12.1 is accessible from the “Home>Setup”, “(Waveform)>Screen Setup>Background”, “Home>View Records”, “Home>Setup>Load/Save on Disk”... -
Page 60: Load Setup Files
CHAPTER 12. FILE MANAGEMENT 1. Read/write to internal flash disk or USB stick (if it was connected during unit startup) 2. Copy the selected file or folder to a USB drive 3. Create and name a new file 4. Create a new folder 5. -
Page 61: Remote Interfaces
Chapter 13 Remote Interfaces 13.1 LAN Interface The LAN connection to the DAS240 supports ModBus, VNC, Sefram Viewer and DAS Lab. Sefram Viewer and DAS Lab are tools provided by B&K/Sefram, and are available as a single download from http://www.sefram.com/en/. The LAN connection supports 10mBit and 100mBit networks. In the case where a network is not available, using a crossover cable is also possible. -
Page 62: Network File Transfer
CHAPTER 13. REMOTE INTERFACES Figure 13.2: LAN configuration dialog windows 13.3 Network file transfer Transfer your files to your computer to save them or view them with the SeframViewer software. • Using of the Windows file explorer • Filezilla: freeware (https://filezilla-project.org/) •... - Page 63 CHAPTER 13. REMOTE INTERFACES • the self-calibration of the channels. Your data acquisition file shows up on screen. The functions of SeframViewer are available. Figure 13.3: Sefram Viewer Refer to the instruction manual included in the software to discover all available functions in SeframViewer by clicking on the last icon <...
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Page 64: Control Your Device With Daslab
CHAPTER 13. REMOTE INTERFACES 13.5 Control your device with DASLab The DASLaB software manages configurations of your DAS240 device. It helps you to : • Open, modify and save your configurations • Manage configurations remotly using network via Ethernet or WiFi •... -
Page 65: Setup Das240
CHAPTER 13. REMOTE INTERFACES Figure 13.6: DASLab 13.6.1 Setup DAS240 The Modbus protocol uses ethernet network. So you have to choose the port used for that feature, and then enable the Modbus TCP server. Default port for Modbus TCP is 502. Your Sefram DAS240 includes a WiFi interface: for performance reasons, you should always use the wired ethernet interface when you perform Modbus communication. - Page 66 CHAPTER 13. REMOTE INTERFACES Input Registers 0x08 A1 High word 0x09 A1 Low word 0x0A A2 High word 0x0B A2 Low word … … 0x19F K4 High word (channel n* 204) 0x1A0 K4 Low word Table 13.1: Modbus register map Discrete Inputs 0x08...
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Page 67: Maintenance
Chapter 14 Maintenance Unplug the unit before any cleaning or maintenance. Periodically clean the recorder while unplugged, in the following ways: • Use water and soap to clean the front and rear surfaces. • Never use any product that contains petroleum by-products, benzene or alcohol: damage the screen printings may occur •... -
Page 68: Specifications
Chapter 15 Specifications Note: All specifications apply to the unit after: ◦ ◦ C ± 5 1. A temperature stabilization time of 15 minutes over an ambient temperature range of 23 2. Short correction operation performed before making measurement. Specifications are subject to change without notice. - Page 69 Multi-channel recorder Model DAS240-BAT Specifications Analog Channels General Number of Analog Input Channels Acquisition System 20 channels standard, expandable to 200 with optional 20-channel modules Resolution 16 bit DC Voltage Acquisition System Scan, one sample per channel ± (0.5, 1, 2.5, 5, 10, 25, 50, 100) mV V >50 mV...
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Page 70: A Measurement Accuracy For Thermocouple
Test Equipment Depot - 800.517.8431 - 99 Washington Street Melrose, MA 02176 TestEquipmentDepot.com Appendix A Measurement accuracy for thermocouple The thermocouple measurements are treated as voltage measurements. For a given range of temperature measurement, the software calculates the voltage caliber the following way: ◦... -
Page 71: Measurement Accuracy: Pm
APPENDIX A. MEASUREMENT ACCURACY FOR THERMOCOUPLE A.1 Measurement accuracy: Pm The measurement accuracy Pm depends on the voltage caliber of the appliance (see the previous paragraph) ◦ and on the slope of the thermocouple. You shall take the slope at 0 C while knowing that it will vary as a function of the temperature, but this variation is generally of the second order for the accuracy calculation. - Page 72 APPENDIX A. MEASUREMENT ACCURACY FOR THERMOCOUPLE In addition, the insensitivity range should not exceed: • C% in the reference conditions • 1.5C% for the maximal resistance of the external measurement circuit • 2C% for parasite voltages And the excess should not be more than 2C% (4C% within the limits of the power supply source). % Test Equipment Depot - 800.517.8431 - 99 Washington Street Melrose, MA 02176 TestEquipmentDepot.com...
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Page 73: B Grounding
Appendix B Grounding • If the source of the signal you have to record has low internal impedance, you shall use twisted wires. In case of high impedance, you shall use shielded wires. • When gathering grounds from the various items on the measurement line, it is good to check that there is no voltage difference between them, in order to prevent any shortcut. - Page 75 Test Equipment Depot - 800.517.8431 - 99 Washington Street Melrose, MA 02176 TestEquipmentDepot.com...
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