OPERATING MANUAL THERMALERT MONITORING THERMOMETER TH-5 CONTENTS Section 1.0 INTRODUCTION 2.0 INITIAL INSTALLATION 3.0 PRECAUTIONS 4.0 DIRECTIONS FOR USE 5.0 REPLACING BATTERIES 6.0 CHECKING CALIBRATION 7.0 USE OF THERMALERT WITH CHART RECORDER 8.0 9.0 10.
OPERATING INSTRUCTIONS THERMALERT MONITORING THERMOMETER, TH-5 1.0 The Physitemp Clinical Monitoring Instruments, Thermalerts TH-5 and TH-8, are compact, portable, battery operated digital readout thermometers for continuous clinical temperature monitoring. 2.0 INITIAL INSTALLATION 2.1 Plug any Physitemp type T thermocouple probe into the blue polarized socket on the rear of the instrument. 2.2 The TH-5 thermometer is designed to mount as follows: (a) Flat, on rubber feet provided.
.0 DIRECTIONS FOR USE 4.1 Connect any Physitemp type T thermocouple probe to the blue polarized socket on the rear of the instrument. 4.2 Switch ON by depressing switch on front of unit - switch shows orange when in ON position. For several seconds the digital display should read “1888” as a segment check. Do not use if any display segment is inoperative. A calibration check is not necessary before each use. 4.3 Read temperature. Leave on for monitoring as long as desired. 4.4 Switch off after use.
6.0 CHECKING CALIBRATION 6.1 The Thermalert TH-5 thermometer incorporates an automatic zeroing amplifier which produces near-perfect stability of calibration. A calibration check is not necessary before each use. Under normal circumstances, the instrument will provide years of service without requiring recalibration. 6.
.6 Checking high end of temperature range: Prepare a water bath at approximately 45°C. Follow measurement instructions given in Section 6.5. 6.7 Allowing for some reading error in the mercury thermometer (there can be none in reading the digital instrument display) and possible probe error, readings should agree within the limits noted in Section 9.7) This means, as an approximate rule-of-thumb, that differences between standard and instrument readings should not exceed 0.2°C.
.0 USE OF THERMALERT WITH A CHART RECORDER 7.1 Analog output is optional on Model TH-5. WARNING: Use of AC-powered equipment with Physitemp Thermometers. As it is powered entirely by low-voltage batteries, Physitemp Thermometer TH-5 presents no safety hazard to patients. However, caution is advised when using the TH-5 with a chart recorder for recording patient temperature. Such auxiliary equipment, when AC-powered and in faulty condition, can create a potential shock hazard.
.0 SPECIFICATIONS Temperature Range 25°C - 45°C Resolution 0.1°C Repeatability 0.1°C Calibration Conforms to National Institute of Standards and Technology tables (Monograph 125). Instrument Accuracy 0.1°C digit Sensors Any Physitemp type T thermocouple probe. Ambient Operating Range 15°C - 45°C Readout 3 1/2 digits, LCD 0.5” high Display check Automatic “1888” displayed after switch-on tests all segments. Batteries 4 “C” cells. Alkaline or Mercury may be used.
.0 TEMPERATURE MEASUREMENT WITH THERMOCOUPLE SENSORS 9.1 The thermocouple is a simple and widely accepted device for measuring temperature. It comprises two wires of dissimilar metals fused together to form a junction which produces an electrical output proportional to temperature.
Here is a useful rough rule: Heat leakage effects are substantially reduced when an amount of probe equal to 10 or more sheath diameters is immersed or laid on the suface. For example, with a probe of 1/16” diameter, 10 x 1/16” = 10/16 = .625 = the minimum immersion depth. 9.7 Errors between thermocouple probes. All Physitemp probes and sensors are made with thermocouple wire that has been specially tested to meet our own stringent standards. Our probes are guaranteed accurate to within 0.
10.0 REPAIRS AND RECALIBRATION 10.1 In the event that a Thermalert Monitoring Thermometer is to be returned for repair and recalibration, please pack it with care and send it prepaid to: Physitemp Instruments, Inc. Service Department 154 Huron Avenue Clifton, NJ 07013 USA Please include with the instrument: (1) A note describing any problems encountered. (2) The name and telephone number of the user or other person we can contact. (3) The complete return address for shipping. 10.
