tekmar 667 Snow Detector & Melting Control - Manual (Page 3)

3 of 28 © 2002 D 667 - 09/02
Symbol Description
Display
Melt Demand
Idle Demand
WWSD
Minimum
Maximum
Water
Melting
Buttons
Selects Menus, Items and
adjusts settings
Number Field
Displays the current value
of the selected item
Menu Field
Displays the
current menu
Item Field
Displays an abbreviated
name of the selected item
Status Field
Displays the current
status of the control's
inputs, outputs and
operation
2
Defi nitions
The following defined terms and symbols are used throughout this manual to bring attention to the presence of hazards of various risk
levels, or to important information concerning the life of the product.
INSTALLATION
CATEGORY II
- Warning Symbol: Indicates presence of hazards which can cause severe personal injury, death or
substantial property damage if ignored.
- Double insulated
- Local level, appliances
Lock / Unlock
Disp lays whether the access levels are
locked or unlocked.
°F, °C, sec, min, hr
Units of measurement. °F, °C, sec,
min, hr
Ovr
Override
Displays when the control is in override
mode.
Pump
Displays when the system pumps are
operating.
Pointer
Disp lays the control op eration as indicated
by the text.
Mixing Device Output Scale
Shows output of injection pump. Arrows show
whether the output is increasing or decreasing.
Burner
Displays when the Boiler relay is turned on.
Warning
Displays when an error exists or when a limit
has been reached.