Related Manuals for AEMC L452
Summary of Contents for AEMC L452
- Page 1 DATA LOGGER MODEL L452 ENGLISH User Manual GlobalTestSupply www. .com Find Quality Products Online at: sales@GlobalTestSupply.com...
- Page 2 Before using your Data Logger Model L452 for the first time, please take a moment to review the following. Signifies that the instrument is protected by double or reinforced insulation. CAUTION - Risk of Danger! Indicates a WARNING that the operator must refer to the User Manual for instructions before operating the instrument in all cases where this symbol is marked.
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Page 3: Table Of Contents
1.2.2 Replacement Parts ............................6 2. PRODUCT FEATURES ........................7 2.1 Model L452 Features ..............................7 2.2 Electrical Power ...............................8 2.3 Using the Model L452 User Interface ........................8 2.3.1 Model L452 Screens ............................8 2.3.2 Front Panel Buttons ...........................10 2.3.3 Entering Text .............................. 11 3. - Page 4 6. DATAVIEW ® ............................................... 34 6.1 Installing DataView ..............................34 6.2 The Data Logger Control Panel ..........................37 6.3 Connecting the Model L452 to the Computer ......................37 6.3.1 USB Connection ............................38 6.3.2 Bluetooth Connection ..........................38 7. SPECIFICATIONS .......................... 39 7.1 Reference Conditions ............................39 7.2 Electrical ................................39...
- Page 5 8.2.8 Cannot Connect to a Computer .........................45 8.2.9 Cannot Turn OFF the Model L452 ......................45 APPENDIX A. USER INTERFACE SCREENS ................... 46 A.1 Measurement Data Screens ..........................47 A.2 Recording Screens ...............................48 A.3 Channel 1 and Channel 2 Configuration Screens ....................49 A.4 Instrument Configuration Screens ........................52...
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Page 6: Introduction
1.2 Ordering Information Data Logger Model L452 ..............................Cat. #2153.51 Includes Data Logger Model L452, 6 ft USB cable, US 120V Wall-to-USB plug, 6-pin screw terminal block, 2 AA rechargeable NiMH bat- teries, quick start guide, and a USB stick containing DataView software and a user manual. -
Page 7: Product Features
2.1 Model L452 Features The Model L452 combines the functionality of three earlier Simple Logger II products: the Model L322 (4 to 20mA logger), Model L432 (user-selectable ±100mV, ±1V, and ±10V logger), and Model L404 (event logger). Voltage and current measurements can be sampled from 200ms to 1 minute;... -
Page 8: Electrical Power
Before using the Model L452 for the first time, you should take a few minutes to familiarize yourself with the instrument’s user interface. This consists primarily of a set of screens that appear on the L452’s LCD, and the buttons used to navigate these screens, select options, and enter configuration information. - Page 9 These screens are described in detail in Appendix A. An example of a Model L452 screen is shown in Figure 2: 24.5 91.8 Figure 2 Item Description Recording indicates the current status of recording activity on the instrument. An empty (unfilled) circle (shown above) indicates a recording is scheduled but has not yet started.
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Page 10: Front Panel Buttons
2.3.2 Front Panel Buttons The Model L452 interface also includes a set of buttons: Figure 3 These buttons, in conjunction with the LCD, provide the built-in ability to configure the instrument and view measurement data, without requiring a computer connection. -
Page 11: Entering Text
Holding down this button for approximately two seconds displays a message informing you that you are in Remote mode. To turn OFF the instrument, continue to hold down while the Remote Mode message is displayed; after approximately two seconds the L452 will turn OFF. 2.3.3 Entering Text There are two screens (Units and Bluetooth Name) in which you are prompted to enter text. -
Page 12: Configuration
3. CONFIGURATION Before you can use the Model L452 for the first time, you must set the appropriate configuration variables on the instrument. Some of these settings apply to the entire instrument (such as the instrument date and time), while others affect a specific input channel. -
Page 13: Choosing The Language For The Interface
. The text on all screens now appears in the selected language. 3.1.2 Setting the Instrument Date and Time The Model L452 interface enables you to set or change the instrument’s date and time. You can also choose the format in which date and time information is displayed. To do this: 1. -
Page 14: Enabling And Configuring Bluetooth
There are two ways to establish this connection. One is by using a USB cable to directly connect the Model L452 to the computer (see §... -
Page 15: Channel Configuration
L452-452105MLP Figure 8. Bluetooth Name screen 6. The Bluetooth name consists of two parts. The first part is “L452-“ and cannot be changed. The second part is editable. To change this, press once to initiate selection mode; the first character in the editable part of the Bluetooth name blinks. -
Page 16: Enabling And Disabling Channels
1. At the Channel Enable/Disable screen, press once to initiate selection mode. The setting under Channel will blink. 2. Press ▼ to highlight the input setting. 3. Press to initiate edit mode. Data Logger Model L452 GlobalTestSupply www. .com Find Quality Products Online at:... -
Page 17: Defining Units
For example, suppose a temperature probe measures a range from -40 to 80°C. At -40°C, the probe’s current output is 4mA, and at 80°C the output is 20mA. To ensure the L452 displays data from this probe correctly, you must scale 4mA input received from the probe to display a reading of -40°C, and scale 20mA input to 80°C. - Page 18 Note that by default, scaling is one-to-one. In other words, one input unit equals one measurement unit. Also note that neither scaling screen is displayed if the input type is set to Pulse or Event. Data Logger Model L452 GlobalTestSupply www.
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Page 19: Enabling And Defining Alarm Triggers
Note that if both limits are used (in other words, the trigger is set to either Outside Limits or Within Limits), the lower limit cannot be higher than the upper limit. 8. When you have finished setting the lower limit, press to save your change. Data Logger Model L452 GlobalTestSupply www. .com Find Quality Products Online at: sales@GlobalTestSupply.com... -
Page 20: Defining Equivalence (Pulse Input Only)
A falling event is triggered when input transitions from high to low. To define which type of event you want the L452 to report, do the following: 1. At the Channel Enable/Disable screen, press ▼. This displays the Event Trigger screen. (This screen only appears when the input type is set to Event.) -
Page 21: Restoring Configuration To The Original Settings
They are, however, inaccessible in Remote mode. Note also that when viewing instrument information screens, the button is disabled, preventing you from entering either selection or edit mode. Data Logger Model L452 GlobalTestSupply www. -
Page 22: Model, Serial Number, And Firmware Revision
■ Name is the name by which the instrument will be identified. This can be up to 32 characters long. By default, this is “L452” followed by the instrument’s serial number. You can change this name via the DataView Data Logger Control Panel (see § 6). -
Page 23: Recording Name Screen
(1) the Control Panel starts or schedules a recording under a different name, or (2) the user resets the configuration on the instrument (see § 3.3). Data Logger Model L452 GlobalTestSupply www. -
Page 24: Connecting To Inputs And Viewing Measurements
After you have finished configuring the instrument, you are now ready to connect sensors or probes to the instrument and start taking measurements. The Model L452 works with a wide variety of measurement probes, signal conditioners, sensors, and devices that output data as voltage (±100mV, ±1V, or ±10V), current (4 to 20mA), pulses, or events. -
Page 25: Viewing Measurement Data
The second and third measurement data screens display measurements and (for analog input) minimum/maximum data for channel 1 and channel 2 respectively. These screens function identically for both channel 1 and channel 2. The following shows an example of the channel 1 screen for analog input. Data Logger Model L452 GlobalTestSupply www. - Page 26 For analog input, the measured value is corrected using calibration data, scaled using user-configurable scaling parameters, and dis- played as a floating point value along with the user-configurable units (shown on the right of the screen). Analog values are measured and updated every second. Data Logger Model L452 GlobalTestSupply www.
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Page 27: Pulse Count Measurement Data
Channel 2, we selected Falling as the event trigger (see § 3.2.7). So in this instance, the transition from above 1V to below 1V defines when the event took place; the subsequent transition from below 1V to above 1V is not considered an event. Data Logger Model L452 GlobalTestSupply www. - Page 28 Note that if no event has occurred during the last reset, the screen shows a straight line in place of the event graphic. In this case the date and time define when the input type was set to Event. Data Logger Model L452 GlobalTestSupply www.
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Page 29: Recording Data
Up to 1024 recording sessions can be stored in the Model L452. The recording memory is considered full when the available space is fully utilized, or when it contains 1024 sessions. -
Page 30: Configuring A Recording Session
Figure 33. Sample Period and Storage Period screen This screen (which is read-only when the input type is set to Event) consists of two fields. The first is Sample Period. The Model L452 will sample analog input at the rate defined by this field. Allowable values are 200ms, 400ms, 600ms, or 800ms; 1 to 60 seconds; or 1 minute. -
Page 31: Starting A Recording Session
5.5 Scheduling a Recording Session Instead of instructing the Model L452 to start recording immediately, you can schedule a recording for a future date and time. Note that you can only schedule one recording at a time; to schedule a new recording (1) the active recording must run to completion, or (2) you must cancel the earlier recording. -
Page 32: Stopping Or Cancelling A Recording Session
This icon appears as an empty circle. You can turn OFF the Model L452 with a scheduled recording pending. When the start date and time occurs, the instrument will turn itself back ON for the duration of the recording, after which it will automatically turn OFF. - Page 33 In addition, the remaining recording-related screens will become active, enabling you to start or schedule a new recording. See § 8.1.1 for instructions on erasing recordings from the instrument’s memory. Data Logger Model L452 GlobalTestSupply www.
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Page 34: Dataview
AEMC’s DataView software enables a computer to connect to and interact with a variety of AEMC instruments, including the Data Logger Model L452. As its name implies, a primary purpose of DataView is to view data that has been recorded by the instrument and displayed on the computer. - Page 35 DataView Update opens the AEMC website where you can check for the latest DataView software version releases. Similarly, Firmware Upgrades links to the website where you can check for new firmware updates for the L452 (see § 8.1.2). Finally, User Manuals installs the printable documentation that accompanies DataView. (DataView also comes with a Help system that is installed with the program files.)
- Page 36 11. After a few moments, a screen appears informing you that installation is complete. Click Finish to leave the InstallShield Wizard. You are now asked whether or not you would like to view instructions about how to connect the AEMC instrument or cable to the USB port on the computer.
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Page 37: The Data Logger Control Panel
Model L452. You can access all DataView features through either the DataView icon or the Control Panel icon. For users who interact with a single type of AEMC instrument, we recommend primarily using the Control Panel. -
Page 38: Usb Connection
(see Figure 8). If the name does not appear, check the Bluetooth Enabled/Visibility screen (Figure 7) on the L452 to ensure the Visibility field is set to Visible. If the name is visible, click it. You are prompted to enter a pairing code, which for L452 instruments is always 0000. -
Page 39: Specifications
16 samples/second *The L452 accepts pulse input from Dry-Contact, Normally Open, and Normally Closed contacts. Typically, a pulse is defined as a change from the “normal” state that lasts at least 30ms, followed by a return to normal that lasts at least 30ms. Note that using Normally Closed sensors can significantly reduce the battery charge life compared to using Normally Open inputs. -
Page 40: Recording And Data Storage
Storage altitude: 0 to 10000m (0 to 32800 ft) 7.7 Safety ■ Ingress protection: IP40 per IEC 60 529 IK 04 per IEC 50102 ■ Electrical safety: IEC 61010-1 Ed3 and IEC 61010-2-030:Ed1 Data Logger Model L452 GlobalTestSupply www. .com Find Quality Products Online at: sales@GlobalTestSupply.com... -
Page 41: Maintenance And Troubleshooting
8.1.1 Erasing Memory The L452 comes with approximately 32MB of memory for storing recording sessions. The Memory icon in the top right corner of the LCD provides a rough estimate of how much of this memory has been used, and how much remains free and available for future recording ses- sions. -
Page 42: Upgrading To The Latest Firmware
Note that if the Model L452 is stored without the batteries installed, its internal clock will need to be reset. See § 3.1.2 for instructions about how to set the instrument’s date and time. -
Page 43: Cleaning The Instrument
If the Model L452 has been stored in a cold and damp environment, condensation may form inside the instrument. This condensation can short the circuitry, preventing the instrument from operating normally. In this case, turn OFF the Model L452 and place it in a warm, dry environment for several hours. -
Page 44: Overload (Ol) Icon Is Displayed
8.2.5 Cannot Configure a Recording Session If you attempt to start or schedule a recording but cannot do so, the Model L452 may be in Remote mode. As mentioned earlier, all con- figuration options are disabled on the Model L452 while the instrument is in Remote mode. § 8.2.4 explains how to leave Remote mode and return local control to the instrument. -
Page 45: Recording Sessions End Prematurely
POWER OFF appear. In addition, you cannot turn OFF the L452 if a recording session is active. Note that you can turn OFF the Model L452 if a recording is scheduled but not currently in progress. However, if the instrument is OFF when the recording’s start date and time is reached, the Model L452 will automatically turn back ON and begin the recording. -
Page 46: Appendix A. User Interface Screens
APPENDIX A. USER INTERFACE SCREENS As explained in § 2.3.1, the primary interface for working with the L452 consists of configuration and display screens. These screens appear in the instrument’s front-panel LCD. The instrument’s buttons enable you to navigate these screens, select options, and enter information. -
Page 47: Measurement Data Screens
For example, when you first turn ON the L452, the first screen that appears is the top-level Measurement Data screen displaying mea- surement data for both channels 1 and 2. This is the instrument’s Home screen. Suppose you want to view the minimum and maximum data for channel 2. -
Page 48: Recording Screens
This screen is disabled if a recording is active or scheduled recording session. one has been scheduled. Pressing ▼ displays the Stop Date and Time screen. Pressing ▲ displays the Sample Period and Storage Period screen. Data Logger Model L452 GlobalTestSupply www. .com Find Quality Products Online at: sales@GlobalTestSupply.com... -
Page 49: Channel 1 And Channel 2 Configuration Screens
Upper Limit and Lower Limit screen (if the input type is set to analog) Equivalence screen (if the input type is set to Pulse) Trigger screen (if the input type is set to Event) Data Logger Model L452 GlobalTestSupply www. .com Find Quality Products Online at: sales@GlobalTestSupply.com... - Page 50 Within Limits, Outside Limits, and Disabled. This screen is only available for analog input. Pressing ▼ displays the Upper Limit and Lower Limit screen. Pressing ▲ displays the High Scal- ing screen. Data Logger Model L452 GlobalTestSupply www. .com Find Quality Products Online at:...
- Page 51 (rising) or when it goes from high to low (falling). Pressing either ▲ or ▼ displays the Enabled/Dis- abled and Input Type screen. Data Logger Model L452 GlobalTestSupply www. .com Find Quality Products Online at:...
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Page 52: Instrument Configuration Screens
Language and Date/Time Format screen (see above). Pressing ▼ displays the Bluetooth Enable/Dis- able and Visibility screen. Pressing ▲ displays the Configuration Reset screen. Data Logger Model L452 GlobalTestSupply www. .com Find Quality Products Online at: sales@GlobalTestSupply.com... -
Page 53: Instrument Information Screens
A.5 Instrument Information Screens These screens display general information that applies to the instrument. They are display-only and cannot be modified through the L452 user interface (although some of these settings can be changed through the DataView Data Logger Control Panel). These screens are not available in Remote mode. - Page 54 The recording name can be changed via the DataView Data Logger Control Panel. Pressing ▼ displays the Model Number, Serial Number, and Firmware Revision screen. Press- ing ▲ displays the Recording Sessions screen. Data Logger Model L452 GlobalTestSupply www. .com Find Quality Products Online at:...
- Page 55 LIMITED WARRANTY The Model L452 is warranted to the owner for a period of one year from the date of original purchase against defects in manufacture. This limited warranty is given by AEMC Instruments, not by the distributor from whom it was purchased. This warranty is void if the unit ®...