OPERATING MANUAL BAT-12 Microprobe Thermometer CONTENTS Section 1.0 INTRODUCTION 2.0 INITIAL INSTALLATION 3.0 OPERATING INSTRUCTIONS 4.0 BATTERY REPLACEMENT 5.0 ANALOG OUTPUT 6.0 TEMPERATURE MEASUREMENT WITH THERMOCOUPLE SENSORS 7.0 TROUBLE SHOOTING 8.0 CHECKING CALIBRATION 9.0 SPECIFICATIONS 10.
OPERATING INSTRUCTIONS FOR BAT-12 THERMOMETER 1.0 INTRODUCTION The Physitemp BAT-12 thermometer is a compact, portable, digital thermometer for use in the lab or in the field. It can be used with any Type T thermocouple sensor and is available in two versions: BAT-12, for battery operation only, uses a 9V alkaline battery. BAT-12R, a rechargeable version, is supplied with a 9V Nickel/Metal-Hydride battery and may be battery operated in the field or AC operated in the lab.
3.0 OPERATING INSTRUCTIONS 3.1 The following instructions are found on the metal label fixed to the BAT-12. They are reprinted here in case the label ever becomes defaced. BAT-12 OPERATING NOTES TO MEASURE Insert the plug of any Type T thermocouple TEMPERATURE probe into the blue socket marked INPUT. Switch ON. Apply probe. Read temperature. TEMPERATURE Model BAT-12 reads -100° to +200°C RANGE 0.1° resolution SPECIAL INDICATIONS 1 Probe is above max. temp. See range above.
4.2 Switch instrument OFF. Use a coin to undo screws on the back of the case and slide case off. Remove battery from clip and replace with a similar 9V battery. For BAT-12, alkaline batteries are recommended. Battery life will be approximately 160 hours. For BAT-12R, a suitable 9V rechargeable battery should be used. DO NOT INSTALL A NON-RECHARGEABLE BATTERY IN BAT-12R. If you accidently try to recharge a non-rechargeable battery it may burst, leak and damage the instrument. 5.0 ANALOG OUTPUT 5.
.0 TEMPERATURE MEASUREMENT WITH THERMOCOUPLE SENSORS 6.1 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.
6.6 Thermocouple probes, like all other temperature sensing devices, must be placed so that they reach, as closely as possible, the temperature of the material to be measured. Probes are tip-sensitive, but when measuring the temperatures of liquids, semi-solids or hard surfaces, it is not sufficient to bring only the tip into contact with the material being measured. This is because there will be loss of heat along both the thermocouple wires and their sheath, so readings will be low.
and almost instant response of the probe. Fluctuations can easily be eliminated by bringing the probe into contact with a metallic object, thus increasing its effective mass and slowing the response. Using a larger probe will have the same results. 6.10 Measurements on Solid Surfaces. These are most easily made with surface probes such as our BT-1 and MT-D. The rightangled tip provides the 10 diameters of probe contact specified in Section 6.6.
not be used on electrical equipment where voltages are present as the sensor is connected to the stainless steel sheath. The following probes are isolated and suitable for use on certain electrical equipment: TFT series, RET-1, ESO-1, IT-14, IT-18, IT-21. Check with out technical department for details. 7.0 7.1 TROUBLE SHOOTING Symptom Check below Readout not illuminated a, b Readout indicates 1 e Readout indicates 0 d Colon (:) in center of display b Calibration error suspected c, f, g a.
8.0 CHECKING CALIBRATION 8.1 The BAT-12 thermometer can have a ‘worst case’ error of 0.2°C. The ‘worst case’ is rarely met as it assumes that all sources of error are at their maximum, and that all are additive. A further possiblity of error is in the sensor. This is a maximum of 0.1°C at 50°C, 0.2°C at 100°C, rising to 3/8% of reading, i.e. a possible 1.5°C at 400°C. This is the maximum error for Special Limits Copper-Constantan thermocouples permitted by ANSI (American National Standards Institute.
9.0 SPECIFICATIONS Temperature range: -100° to +200°C Resolution: 0.1° Accuracy: 0.1° ±1 digit between 0 - 50°C 0.1% ± 1 digit over the full range Calibration: Conforms to National Institute of Standards and Technology tables -- (NIST monograph 125) Ambient Cold Junction Temp Compensation: ±0.
10.0 REPAIRS AND WARRANTY 10.1 If the BAT-12 is to be returned for any reason, please pack it with care and sent it prepaid to: Service Department PHYSITEMP INSTRUMENTS INC 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 a person we can contact 3. The complete return address for shipping.
PHYSITEMP INSTRUMENTS INC 154 Huron Avenue Clifton, NJ 07013 U.S.A. Tel: 973-779-5577 Fax: 973-779-5954 e-mail: physitemp@aol.