tekmar 667 Snow Detector & Melting Control Installation - Manual (Page 19)

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LOCK / UNLOCK (FACTORY SETTING IS UNLOCK)
The Lock / Unlock DIP switch is used to lock and unlock the access level of the control and tekmar Net™ tN2 device. Once locked,
access levels can not be changed. To determine if the control is currently locked or unlocked, a small segment representing a padlock
is viewed in the bottom right hand corner of the display. When the padlock is closed, the access level cannot be changed.
To change the access level, set the DIP switch to the unlocked, or down position. The current access level of the control or
tekmar Net™ tN2 device is viewed in its Miscellaneous (Misc) menu. While viewing the access level, use the
▲ and ▼ keys to select
between the Limited (LTD), User (USER), Installer (INST) or Advanced (ADV) access levels.
To lock the access level, select the appropriate access level in the Miscellaneous (Misc) and move the DIP switch from the unlocked
position to the locked position. As long as the DIP switch is in the locked position, the access level of the control or tekmar Net™ tN2
device can no longer be viewed or adjusted in its Miscellaneous (Misc) menu.
IDLE DEMAND / MELT DEMAND (FACTORY SETTING IS MELT DEMAND)
The Idle Demand / Melt Demand DIP switch is used for melting and idling operation. The position of the DIP switch determines what
the Melt / Idle Demand terminals (15 and 16) are used for. When the DIP switch is set to the Melt Demand position, the Melt / Idle Demand
terminals (15 and 16) are used to place the snow melting system into Melting mode.
When the DIP switch is set to the Idle Demand position, the Melt / Idle Demand terminals (15 and 16) are used to force the snow melting
system into Idling mode.
Access Levels
The tekmar Snow Detector and Melting Control 667 comes with four Access
Level settings. These Access Levels restrict the number of Menus, Items
and Adjustments that can be accessed by the user. The four access levels
are Limited (LTD), User (USER), Installer (INST) and Advanced (ADV).
The access level of the control is found in the Miscellaneous (Misc) menu
when the Lock / Unlock DIP switch is set to the Unlocked position. In the
Advanced access level, all of the control settings are available to the user.
In the User access level, only a few of the menus and items are available.
The Limited access level is the most restricted of them all. The control’s
factory setting is Installer (INST). This access level is suffi cient for the
normal set up of the control. Once the control is set up, the appropriate
access level should be selected for the people that deal with the control
on a regular basis.