Partlow Limit Switches
LFHL* Indicating High Temperature Limit Device
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* Fail-safe feature in the event that the temperature drops below normal ambient due to damage to the thermal sensing element
* A red signal, light remains on as long as temperature is below the limit setting
* FM and CSA listed
* Flush or wall mount
* Equipped with both manual reset and element failure switches
N5-10X* Non-indicating High Temperature Limit Device
* This unit is designed to
operate in conjunction with a primary temperature controller to provide positive safety
shutdown of industrial heating systems
* The instrument also contains a fail-safe feature in the event temperature drops below normal ambient because of accidental severance of sensing bulb or capillary
* This unit has manual reset, internal switch actuation adjustment and is available with any temperature ranged element from -30F to 1100F
* CSA and FM listed
N79-79* Non-Indicating Controllers
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* This unit is a two switch, non-indicating temperature control with unlimited differential setting capabilities between switches
* The unit is used where two fixed temperatures are specified as control points and where a change or adjustment of those points is seldom required
* UL and CSA listed
* Temperature setting on the N79-79 may be set by the factory or the user
by simply adjusting screws inside the control case in conjunction with an accurate
temperature-sensing device place adjacent to the thermal sensing element
ZFHL* Non-Indicating High Temperature Limit Device
* This unit is used in
conjunction with a primary temperature controller to cut off heat supply if present
temperature is exceeded
* The externally set Model ZFHL is tamperproof by application of a clear acrylic dial and knob shield which is held in place by capstan cover screws
* Reset button on front of cover, FM listed
* Agency recognition is void if instrument is modified from factory
standard
ZF 79* Non-Indicating Controller
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* This unit is a compact single-switch industrial temperature controller designed to operate fuel valves or relays which start and stop heating or cooling systems
* It can also be used as a limit device for sounding an alarm, actuating lights or to shut down equipment at a predetermined temperature
* Compact, flush or wall mounted (brackets included) externally adjustable set point, available in twelve optional ranges within -30F to 1100F
* UL and CSA listed
* Temperature is set by turning the large, easy to handle setting knob on
the front of the instrument to the desired point on a 200 degree semi-circular scale
* Note: requires additional capillary systems.
 CIRCULAR CHART |
 CONTROLLERS |
