2-din dvd multimedia station with built-in navigation & 6.5” touch panel control; dvd multimedia station with built-in navigation & 7” touch panel control (186 pages)
Dvd multimedia station with built-in navigation & 6.2-inch touch panel control multimedia station & 6.2-inch touch panel control installation manual (201 pages)
Page 2
It is easy to keep the navigation system up to date. Simply download new map data from Clarion’s portal site, store them on a microSD card and insert it into the Clarion NX702 via the front card slot. Unpleasant surprises are now avoided as navigation maps will match the real world.
Table of contents 1. Warnings and Safety information ..................6 2. Getting started.......................... 7 2.1 Buttons and other controls on the screen ................... 8 2.1.1 Using keyboards............................9 2.1.2 Beyond single screen tap...........................10 2.2 Map screen ............................11 ...
Page 4
3.1.2.2 Searching for a Place of Interest using preset categories................... 45 3.1.2.3 Searching for a Place of Interest by category..................... 47 3.1.2.4 Searching for a Place of Interest by name ......................49 3.1.2.5 Searching for a Place of Interest by its Phone Number ..................52 ...
Page 5
5.1.6 Road safety cameras and other proximity alert points ................81 5.1.7 Speed limit warning ..........................82 5.1.8 Traffic information in route planning .......................82 5.2 'More' menu ............................84 5.3 Settings menu............................ 85 5.3.1 Sound and Warnings ..........................87 5.3.2 Customize Quick menu..........................89 89 ...
It is important that you look at the display only when it is safe to do so. If you are the driver of the vehicle, we recommend that you operate Clarion Mobile Map before you start your journey. Plan the route before your departure and stop if you need to change the route.
2. Getting started Clarion Mobile Map is optimized for in-car use. You can use it easily by tapping the screen buttons and the map with your fingertips. When using the navigation software for the first time, an initial setup process starts automatically. Do as follows: Select the written language of the application interface.
The initial setup is now complete. The Configuration wizard can be restarted later from the Settings menu (page 85). After the initial setup, the Map screen appears and you can start using Clarion Mobile Map. 2.1 Buttons and other controls on the screen When you are using Clarion Mobile Map, you usually tap buttons on the touch screen.
Slider When a feature can be set to Drag the handle to different values in a range, move the slider to its Clarion Mobile Map shows an new position. indicator on a gauge that • Tap the slider where displays and sets the value.
Entering numbers and symbols to switch to a keyboard offering numeric and symbol characters. Finalizing the keyboard entry (accepting the suggested search result) Finalizing the keyboard entry (opening the list of search results) Finalizing the keyboard entry (saving your input) Canceling the keyboard entry (returning to the previous screen)
Gestures (drag&drop) You need to drag and drop the screen only in cases like: • Moving the handle on a slider. • Scrolling the list: grab the list anywhere and slide your finger up or down. Depending on the speed of the sliding, the list will scroll fast or slow, only a bit or till the end.
Page 12
Shows the time needed to reach the final destination of the route based on information available for the remaining segments of the route. If Clarion NX702 is capable of receiving live traffic information, the calculation takes into account traffic delays affecting your route if they are received.
2.2.3.1 Streets and roads Clarion Mobile Map shows the streets in a way that is similar to how the paper road maps show them. Their width and colors correspond to their importance: you can easily tell a freeway from a small street.
2.2.3.2 Turn preview and Next street When navigating a route, the top section of the Map screen shows information about the next route event (maneuver) and the next street or the next city/town. There is a field in the top left corner that displays the next maneuver. Both the type of the event (turn, traffic circle, exiting freeway, etc.) and its distance from the current position are displayed.
When navigating on multi-lane roads, it is important to take the appropriate lane in order to follow the recommended route. If lane information is available in the map data, Clarion Mobile Map displays the lanes and their directions using small arrows at the bottom of the map. Highlighted arrows represent the lanes you need to take.
2.2.3.4 Junction view If you are approaching a freeway exit or a complex intersection and the needed information exists, the map is replaced with a 3D view of the junction. The lanes you need to take are displayed with arrows. Signposts can also be present if information is available.
3D buildings 3D block representation of full city building data containing actual building size and position on the map. 2.2.3.7 Elements of the active route Clarion Mobile Map shows the route in the following way: Symbol Name Description Current GPS position and Start Your current position displayed on the map.
2.2.3.8 Traffic events Road segments affected by traffic events are displayed with an alternate colour on the map, and small symbols above the road show the nature of the event: to open the Traffic Summary screen. to open the list of traffic events: Now tap any of the list items to see its details, and to display the affected road segment in its full length on the map: If there are traffic events on the recommended route that the application has not...
Zooming in and out Changes how much of the map is displayed on the screen. Clarion Mobile Map uses high-quality vector maps that let you examine the map at various zoom levels, always with optimized content. It always displays street names and other text with the same font size, never upside-down, and you only see the streets and objects that you need.
Compass in 3D map The direction of the compass shows North. Tap the view mode button to switch to North-up view, and then tap again to rotate the map in the previous direction. Location information Tap this button to open a new screen with information about the selected map point, the Cursor.
Page 21
Find / Favorite (page This button opens the list of your Favorite destinations. Find / History (page This button opens the History list. You can select one of your previous destinations. My Route / Edit Route This button opens the route editing function. More / Settings / Route This button opens the route related settings.
Page 22
More / Trip Monitor This button opens the Trip Monitor screen where you can manage (page 98) your previously saved trip logs and track logs. Tap the top of the Map This button opens the list of maneuvers (the itinerary). screen during navigation.
2.2.6 Checking the details of the current position (Where Am I?) This screen contains information about the current position (or about the last known position if GPS reception is not available) and a button to search for useful Places nearby. You can access this screen from the map in one of the following ways: •...
: Gas stations Tap any of the buttons, select a Place from the list, and navigate to it. 2.3 Navigation Menu You can reach all parts of Clarion Mobile Map from the Navigation Menu. You have the following options: •...
Page 25
• to customize the way the navigation software works, to simulate demo routes or to run some additional applications. to start navigating on the map. The button itself is a miniature live map that shows your current position, the recommended route and the surrounding map area. Tap the button to enlarge the map to the full screen.
3 On-road navigation When first started, Clarion Mobile Map calculates routes using the road network of the high quality vector maps provided with the product. You can set up your route in different ways: • If you need a route for immediate navigation, you can select the destination and start navigating to it right away (normal navigation).
Navigation Menu. In the Navigation Menu, tap the following buttons: By default, Clarion Mobile Map proposes the country and state where you are. If needed, tap , enter the first few letters of the destination country or state on the keyboard, and select one from the list.
Page 28
Enter the street name: Start entering the street name on the keyboard. Find the street you need: • The most likely street name is always shown in the input field. To accept it, tap • If the desired name does not show up, the names that match the string appear in a list after entering a couple of characters (to open the list of results before it appears automatically, tap ).
Navigation Menu. In the Navigation Menu, tap the following buttons: By default, Clarion Mobile Map proposes the country, state and city/town where you are. If needed, , enter the first few letters of the destination country or state on the keyboard, and select one from the list.
Page 30
If needed, select a new city/town: Start entering the name of the city/town on the keyboard. Find the city/town you need: • The most likely city/town name is always shown in the input field. To accept it, tap • If the desired name does not show up, the names that match the string appear in a list after entering a couple of characters (to open the list of results before it appears automatically, tap ).
Page 31
Enter the house number: Enter the house number on the keyboard. (To enter letters, tap to finish entering the address. (If the entered house number cannot be found, the midpoint of the street is selected as the destination.) A full screen map appears with the selected point in the middle. If necessary, tap the map somewhere else to modify the destination.
Navigation Menu. In the Navigation Menu, tap the following buttons: By default, Clarion Mobile Map proposes the country and city/town where you are. If needed, tap , enter the first few letters of the country name on the keyboard, and select one country from the list of results.
Page 33
Enter the street name: Start entering the street name on the keyboard. Find the street you need: • The most likely street name is always shown in the input field. To accept it, tap • If the desired name does not show up, the names that match the string appear in a list after entering a couple of characters (to open the list of results before it appears automatically, tap ).
In the Navigation Menu, tap the following buttons: By default, Clarion Mobile Map proposes the country and state where you are. If needed, tap the button with the name of the country, enter the first few letters of the destination country or state on the keyboard, and select a country and state from the list.
Page 35
• If the desired name does not show up, the names that match the string appear in a list after entering a couple of characters (to open the list of results before it appears automatically, tap ). Select the street from the list. Enter the house number: Enter the house number on the keyboard.
After a short summary of the route parameters, the map appears showing the entire route. The route is automatically calculated. Tap to modify route parameters, or tap and start your journey. 3.1.1.5 Entering the midpoint of a street as the destination You can navigate to the midpoint of a street if the house number is not available: If you are on the Map screen, tap to return to the Navigation Menu.
Instead of entering the house number, tap . The midpoint of the street is selected as the destination. A full screen map appears with the selected point in the middle. If necessary, tap the map somewhere else to modify the destination. The Cursor ( ) appears at the new location.
Page 38
Find the street you need: • The most likely street name is always shown in the input field. To accept it, tap • If the desired name does not show up, the names that match the string appear in a list after entering a couple of characters (to open the list of results before it appears automatically, tap ).
3.1.1.7 Selecting a city/town center as the destination The city/town center is not the geometric center of the city/town but an arbitrary point the map creators have chosen. In towns and villages, it is usually the most important intersection; in larger cities, it is one of the important intersections.
Instead of entering the street name, tap . This way the center of the displayed city/town becomes the destination of the route. A full screen map appears with the selected point in the middle. If necessary, tap the map somewhere else to modify the destination. The Cursor ( ) appears at the new location.
Page 41
to open the numeric keypad. Start entering the ZIP code. Find the city/town you need: • The most likely ZIP code is always shown in the input field. To accept it, tap • If the desired number does not show up, open the list of results by tapping .
to finish entering the address. (If the entered house number cannot be found, the midpoint of the street is selected as the destination.) A full screen map appears with the selected point in the middle. If necessary, tap the map somewhere else to modify the destination.
3.1.2 Selecting the destination from the Places of Interest You can select your destination from the Places of Interest included with Clarion Mobile Map. Using the same screen, you can find a Place in different ways: •...
Page 44
After entering a few letters, tap to open the list of Places with names containing the entered character sequence. (optional) The Places in the list are ordered by the length of the necessary detour (when navigating a route) or by their distance from the current position (when no destination is given). If you need to reorder the list, tap Browse the list if necessary and tap one of the list items.
3.1.2.2 Searching for a Place of Interest using preset categories The Preset search feature lets you quickly find the most frequently selected types of Places. If you are on the Map screen, tap to return to the Navigation Menu. In the Navigation Menu, tap the following buttons: The preset search categories appear: •...
Page 46
• • If an active route exists, accommodation is searched around the destination of the route. • If there is no active route (destination is not selected), they are searched around the current position. • If the current position is not available either (no GPS signal), they are searched around the last known position.
3.1.2.3 Searching for a Place of Interest by category You can search for Places of Interest by their categories and subcategories. If you are on the Map screen, tap to return to the Navigation Menu. In the Navigation Menu, tap the following buttons: Select the area around which the Place should be searched for: •...
Page 48
Select one of the main Place categories (e.g. Accommodation) or tap to list all Places around the selected location or along the route. Select one of the Place subcategories (e.g. Hotel or Motel) or tap to list all Places in the selected main category around the selected location or along the route. Sometimes the list of brands in the selected Place subcategory appears.
11. Browse the list if necessary and tap one of the list items. A full screen map appears with the selected point in the middle. The name and address of the Place is displayed at the top of the screen. 12.
Page 50
• to search for a place around the destination of the active route. (The result list will be ordered by the distance from the destination.) • to search along the active route, and not around a given point. This is useful when you search for a later stopover that results in a minimal detour only, such as searching for upcoming gas stations or restaurants.
Page 51
if you have not done it before. Using the keyboard, start entering the name of the Place. 10. After entering a few letters, tap to open the list of Places with names containing the entered character sequence. 11. (optional) The Places in the list are ordered by their distance from the current or last known position, from the selected city/town, from the destination or by the length of the necessary detour.
15. After a short summary of the route parameters, the map appears showing the entire route. The route is automatically calculated. Tap to modify route parameters, or tap and start your journey. 3.1.2.5 Searching for a Place of Interest by its Phone Number You can search for Places of Interest by their phone number: If you are on the Map screen, tap to return to the Navigation Menu.
If necessary, tap the map somewhere else to modify the destination. The Cursor ( ) appears at the new location. Tap to confirm the destination, or tap to select a different destination. 10. After a short summary of the route parameters, the map appears showing the entire route. The route is automatically calculated.
Page 54
• : Medical and emergency services • : Police stations • : Gas stations Tap any of the quick search buttons to get an instant list of that type of Places. (optional) The Places in the list are ordered by their distance from the current or last known position, from the selected city/town, from the destination or by the length of the necessary detour.
3.1.3 Selecting a map location as the destination If you are on the Map screen, tap to return to the Navigation Menu. In the Navigation Menu, tap the following buttons: Locate your destination on the map: move and scale the map as needed. Tap the location that you want to select as your destination.
. The list of Favorite destinations is displayed. Tap the Favorite that you want to set as your destination. If necessary, browse down to see more of the list or tap and enter a few letters from the name of the Favorite destination.
• If you are in the Navigation Menu, tap and then tap A full screen map appears with the selected point in the middle. If necessary, tap the map somewhere else to modify the destination. The Cursor ( ) appears at the new location. Tap to confirm the destination, or tap to select a different destination.
Select a destination from the list. A full screen map appears with the selected point in the middle. If necessary, tap the map somewhere else to modify the destination. The Cursor ( ) appears at the new location. Tap to confirm the destination, or tap to select a different destination.
(optional) If necessary, tap then and enter the coordinate in UTM format. When finished, tap A full screen map appears with the selected point in the middle. If necessary, tap the map somewhere else to modify the destination. The Cursor ( ) appears at the new location.
A full screen map appears with the selected point in the middle. If necessary, tap the map somewhere else to modify the destination. The Cursor ( ) appears at the new location. Tap to confirm the destination, or tap to select a different destination.
to select the destination. The Destination menu appears and you can select the destination of the route the same way as described in the previous sections. When the new destination is selected, the list returns. To add more destinations, tap where you want to insert the new route point in the list, and repeat the above procedure.
3.3 Checking route parameters and accessing route related functions You can check different parameters of the route recommended by Clarion Mobile Map. If you are on the Map screen, tap to return to the Navigation Menu. In the Navigation Menu, tap The following pieces of information are displayed: •...
3.4 Modifying the route When navigation is already started, there are several ways to modify the active route. The following sections show some of those options. 3.4.1 Selecting a new destination when already having a route: New Route, Waypoint or Final Destination If you already have a recommended route and you select a new destination as described in the above sections, the application will ask you whether to start a new route, add a new waypoint (intermediate...
Page 64
If you already have a route, tap . If you are starting a new route, tap The first line is the start of the route, normally the current GPS position. Tap and confirm your action at the warning message. The Destination menu appears and you can select the start point of the route the same way you select a destination.
To return to normal navigation, tap 3.4.3 Editing the list of destinations (Edit Route) You can edit the route by modifying the list of destinations. You can add or remove destinations, modify the start position or reorder the list. If you are on the Map screen, tap to return to the Navigation Menu.
3.4.4 Pausing the active route You do not need to pause the active route: when you start driving again, Clarion Mobile Map restarts the voice instructions from your position. 3.4.5 Canceling the active route To cancel the navigated route, do one of the following: •...
Select one of the route alternatives and tap to return to the previous screen. Clarion Mobile Map recalculates the route. The orange line now shows the new recommended route. 3.4.7 Checking route alternatives for an existing route To recalculate the active route with a different route planning method, you can modify the Route settings (page 89).
Page 68
Select one of the route alternatives then tap and hold for a few seconds to return to the Map screen. Clarion Mobile Map recalculates the route. The orange line now shows the new recommended route. 68 NX702 English...
• • • Clarion Mobile Map recalculates the route optimized for the new vehicle type. The orange line now shows the new recommended route. 3.4.9 Changing the road types used in route planning To recalculate the active route with different road type preferences, do as follows. These changes can also be made in Settings (page 89).
Page 70
• - Clarion Mobile Map includes toll roads (pay roads where there is a per-use charge) in the routes by default. If you disable toll roads, Clarion Mobile Map plans the best toll-free route. • - Clarion Mobile Map includes ferries in a planned route by default.
3.5 Saving a location as a Favorite destination You can add any location to Favorites, the list of frequently used destinations. Planning a route to one of the Favorite destinations is described on page 55. Select a destination as described before. It can be an address, a Place, any location on the map, a previously used destination from History, etc.
3.6 Saving a location as an alert point You can save any map location as an alert point (for example a speed camera or a railroad crossing). Browse the map and select a location. The red Cursor appears there. Scroll down the list and tap On the newly opened screen, select the type of the alert point, the direction from which you expect the alert, and (if applicable) the speed limit for this alert point.
3.7 Editing an alert point You can edit a previously saved or uploaded alert point (for example a speed camera or a railroad crossing). Browse the map and select the alert point to edit. The red circle appears around the alert point. Scroll down the list and tap On the newly opened screen, modify the type of the alert point, the direction from which you expect the alert, or (if applicable) the speed limit for this alert point.
3.8 Watching the simulation of the route You can run a simulated navigation that demonstrates the active route. Do as follows: If you are on the Map screen, tap to return to the Navigation Menu. In the Navigation Menu, tap Scroll down the list and tap .
Page 75
(optional) You have the following controls during the simulation (the control buttons disappear after a few seconds but you can open them again if you tap the map): • : Jump to the next route event (maneuver). • : Pause the simulation. •...
4 Off-road navigation When first started, Clarion Mobile Map calculates routes using the road network of the high quality vector maps provided with the product. You can switch the application to off-road mode in Navigation settings in one of the following ways: •...
While driving without an active route: Smart Zoom will zoom in if you drive slowly and zoom out when you drive at high speed. 5.1.2 Daytime and night color themes Clarion Mobile Map uses different color themes during the day and during the night for both the map and the menu screens. •...
• : Results in a route with fewer turns and no difficult maneuvers. With this option, you can make Clarion Mobile Map to take, for example, the freeway instead of a series of smaller roads or streets. 78 NX702 English...
Page 79
• Vehicle types: When creating a new vehicle profile, select one of the below vehicle types. Besides the below mentioned conditions, dimension, weight and freight hazard restrictions can also be taken into account when planning a route. • • Maneuver restrictions and directional constraints are taken into account when planning a route.
Real-time Traffic events are also taken into account and sometimes greatly modify the route. Clarion Mobile Map automatically recalculates the route if you deviate from the proposed itinerary or if a newly received Traffic event concerns a part of the recommended route.
There is a special proximity warning for road safety cameras (like speed or red light cameras) and other proximity alert points (like schools or railroad crossings). These alert points are preloaded in Clarion Mobile Map. You can download more from www.clarion.naviextras.com or you can upload points in a specific text file if needed.
The maximum speed set in the vehicle profile is also used for this warning. Clarion Mobile Map alerts you if you exceed the preset value even if the legal speed limit is higher.
Page 83
Clarion NX702 contains the TMC receiver that is needed to receive Traffic events. If public Traffic data is broadcast at your location, Clarion Mobile Map automatically takes into account the traffic events received. You do not need to set anything in the program. The receiver will automatically search the FM radio stations for TMC data, and the decoded information will immediately be used in route planning.
The 'More' menu provides you with various options and additional applications. Tap the following buttons: Button Description You can configure the program settings, and modify the behavior of Clarion Mobile Map. Fine-tune route planning options, change the look of the Map screen, turn on or off warnings, or restart the Configuration wizard, etc.
Database End User License Agreement, or check the map and other contents of the application. You can also access program usage statistics. 5.3 Settings menu You can configure the program settings, and modify the behavior of Clarion Mobile Map. Tap the following buttons: The Settings menu has several options. Tap or scroll with your finger to see the full list.
Page 86
If more drivers use Clarion Mobile Map for navigating, their settings can be remembered by using one of the user profiles. You can fine-tune the appearance of the Map screen. Adjust the map view to your...
5.3.1 Sound and Warnings Adjust the different sounds of the application or change the voice guidance language. In addition, you can enable and set up different warnings and alerts. Button Description Tap this button to adjust the volume of the different sounds in the application. A new screen shows the different sound types and their controls.
Page 88
Maps may contain information about the speed limits of the road segments. Clarion Mobile Map is able to warn you if you exceed the current limit. This information may not be available for your region (ask your local dealer), or may not be fully correct for all roads in the map.
The rest of the buttons below are all related to the TMC function and are available only if the receiver is enabled. This setting determines how Clarion Mobile Map uses the received real-time traffic information in route calculation. When calculating a new route, or when recalculation becomes necessary based on the received Traffic events, Clarion Mobile Map avoids traffic events if it makes sense.
Page 90
Clarion Mobile Map includes toll roads (pay roads where there is a per-use charge) in the routes by default. If you disable toll roads, Clarion Mobile Map plans the best toll-free route. Clarion Mobile Map includes ferries in a planned route by default. However, a map does not necessarily contain information about the accessibility of temporary ferries.
Page 91
Tap this button to reveal the below options. Tap this button to create your own vehicle profile. Tap this button to reset all vehicle profiles to their default settings. When creating a new vehicle profile, first you need to select the vehicle type. Then you need to set the following parameters (some of them may not exist for the selected vehicle type).
Page 92
Select one or more hazard types if the vehicle carries dangerous material. Vehicle types: When creating a new vehicle profile, select one of the below vehicle types. Besides the below mentioned conditions, dimension, weight and freight hazard restrictions can also be taken into account when planning a route.
5.3.5 User profiles If more drivers use Clarion Mobile Map for navigating, their settings can be remembered by using one of the user profiles. Rename the profiles after tapping the edit button on the right so that all users know which profile to use and switch between profiles by tapping its name.
5.3.6 Map settings You can fine-tune the appearance of the Map screen. Adjust the map view to your needs, choose suitable color themes from the list for both daytime and night use, change the red arrow to a 3D car model, show or hide 3D buildings, turn track logging on or off, and manage you Place visibility sets (which Places to show on the map).
Page 95
Button Description Switch the map view between a 3D perspective view and a 2D top-down view. Adjust the basic zoom and tilt levels to your needs. Three levels are available. Switch between daytime and night color modes or let the software switch between the two modes automatically a few minutes before sunrise and a few minutes after sunset.
When you slow down while driving on a freeway, there is a chance that you are in a traffic jam so Clarion Mobile Map offers you a detour using the next exit. The message shows you distance of the exit and the difference in distance and estimated time compared to the original route.
The application will restart if you change this setting; you are asked to confirm this. You can set the distance units to be used by the program. Clarion Mobile Map may not support all the listed units in some voice guidance languages.
5.3.10 Trip monitor settings Trip logs contain useful information about your trips. Trip logs can be saved manually when you reach your destination or you can turn on the automatic saving here. You can access these logs in the Trip monitor.
Color theme Clarion Mobile Map comes with different color themes for daytime or night use of the map and menu screens. Themes are custom graphic settings and they can have different colors for streets, blocks or surface waters in 2D and 3D modes, and they display shades or shadows in different ways in 3D mode.
Page 100
Special alert points for speed, red light or bus lane cameras. Different data sources are available. You can configure Clarion Mobile Map to warn you when you approach one of these cameras. Detecting the location of Road Safety Cameras is prohibited in certain countries. It is the sole responsibility of the driver to check whether this feature can be used during the trip.
7 End User License Agreement 1 The contracting parties 1.1 This Agreement has been entered into by and between NNG Kft. (registered seat: 23 Bérc utca, H- 1016 Budapest, Hungary; Company reg.no.: 01-09-891838) as Licensor (hereinafter: Licensor) and You as the User (hereinafter: User; the User and the Licensor jointly referred to as: Parties) in subject of the use of the software product specified in this Agreement.
Page 102
from the Database owners in order to utilize the Database, to offer it for utilization and to transfer it for utilization as set forth in this Agreement. 5.4 Pursuant to this Agreement, all rights vested in the Software Product shall remain in the ownership of the Licensor, except for those to which the User is entitled under law or by virtue of this Agreement.
Page 103
8.5 The Licensor also draws the attention of the User to the fact that, when using the Software Product in any form of vehicle, observing the traffic regulations and rules (e.g. use of obligatory and/or reasonable and suitable security measures, proper and generally expected care and attention in the given situation, and special care and attention required due to the use of the Software Product) is the exclusive responsibility of the User.
Page 104
Uploading is executed through Licensor’s special software or by the User navigation device, and the upload may be enabled or disabled by User. After successful data upload, the collected data is deleted from the Software Product storage media. 10.3 Collected data is transmitted, stored and handled anonymously and no connection of the data with the User shall be established by Licensor or any third party.
Need help?
Do you have a question about the NX702 and is the answer not in the manual?
Questions and answers