Abstract: A probe for measuring the surface temperature of a pipe includes a detector assembly and a rectangular strap. The detector assembly includes a rigid, unitary clamp member having a bottom, pipe engagement surface, an oppositely disposed upper surface, and first and second locking dogs extending upwardly from the upper surface. The locking dogs define a gap having a width WG. A temperature sensor assembly is carried on the pipe engagement surface. The proximal end portion of the strap is mounted to the clamp member. The strap is flexible, longitudinally resilient and has a thickness TU in an unstretched condition and a thickness TS in a stretched condition, where TU>TS, TU>WG, and WG>TS. The probe is mounted to the pipe by positioning the pipe engagement surface of the clamp member against the pipe, wrapping the strap around the pipe, and applying a tensile force to the distal end portion of the strap such that the thickness of the strap decreases from TU to TS.

Abstract: A probe for measuring the surface temperature of a pipe includes an active clamp assembly and a passive clamp assembly, with the first end of the passive clamp assembly pivotally mounted to the first end of the active clamp assembly. The active clamp assembly has a first end portion forming a lower handle and a second end portion forming an upper jaw. A clamp temperature sensor assembly is carried in the upper jaw and an electronics module having a display panel is carried in the lower handle. The passive clamp assembly has a first end portion forming an upper handle and a second end portion forming a lower jaw. A spring biases the upper handle away from lower handle.

Abstract: A hand-held electronic instrument including a unitary, sleeve-shaped housing having a battery compartment and an electronics compartment housing a microcomputer. A sensing probe and a probe mounting member are removably mounted and fluidically sealed to the front end portion of the housing. A battery door assembly fluidically seals the rear end portion of the housing and is removable to provide access to the battery compartment for replacing spent batteries. A latch pin extending laterally from the latch operator of the battery door assembly engages a partition on the housing to retain the assembly to the housing. A battery polarizing plate disposed intermediate the battery and the electrical contacts for the battery ensure that the proper polarity is applied. Software stored in the microcomputer includes a calibration routine for facilitating calibration of the instrument and an energy savings routine for extending the life of the battery.

Abstract: An adjustable pocket thermometer sheath assembly includes a sheath having a longitudinally extending body member defining a central bore. A pocket clip has a sleeve portion slidably mounted on the sheath and a body member having an opening. The pocket clip is slidably moveable on the sheath from an adjustment position, where the sleeve portion is disposed proximate the lower end of the sheath and the body member extends longitudinally outward from the lower end, to a storage position, where the sleeve portion is disposed proximate the upper end of the sheath and the body member is disposed adjacent the exterior surface of the sheath. The adjustment member of the thermometer may be inserted into the opening when the pocket clip is in the adjustment position such that the inner surface of the opening engages the flats of the adjustment member to prevent rotation therebetween.

Abstract: A super heat calculator for air conditioning systems comprising a microprocessor, a control panel, a temperature sensor, and a pressure sensor. Vapor pressure models for all expected air conditioning refrigerants are stored in a data storage unit of the microprocessor. Positioning a rotary switch on the control panel directs the microprocessor to utilize the vapor pressure model associated with the refrigerant assigned to the switch position. The temperature sensor and pressure sensor are installed between the evaporator and compressor of the air conditioning system. The temperature and pressure signals are sent to a dual slope analog to digital converter located in the control panel. The temperature of the refrigerant is automatically displayed when the calculator is turned on. Pressing the SUPER-HEAT button on the control panel initiates calculation of the degree of super heat. The microprocessor reads the refrigerant temperature and pressure values and stores them in the storage unit.