PHYSITEMP BAT-12 Operating Manual Download Page 4

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.

3.2

The special indications mentioned in 3.1 alert the user to unusual conditions

and can prevent the recording of erroneous readings.

3.3

When the instrument is switched on and a probe is connected, it should read

room temperature. This is normally about 25°C. Hold the tip of the probe between
the thumb and forefinger; if reading increases to 28-34°C, which is normal skin
temperature, it may be assumed that the instrument is working correctly. If the
instrument reads low, your hand may be cold. BAT-12 reads to 1/10°C.

3.4

Normal use of the thermometer is very simple. Switch ON, apply probe, read

temperature.

4.0 BATTERY REPLACEMENT

4.1

When a colon (:) appears in the center of the ditigal display, the battery needs

to be replaced. However, BAT-12 can be used without significant calibration error
for about one hour after the appearance of the colon.

4

TO MEASURE

TEMPERATURE

TEMPERATURE

RANGE

SPECIAL

INDICATIONS

BATTERY

REPLACEMENT

RECORDER

OUTPUT

Insert the plug of any Type T thermocouple
probe into the blue socket marked INPUT.
Switch ON. Apply probe. Read temperature.

Model BAT-12 reads  -100° to +200°C
0.1° resolution

Probe is above max. temp. See range
above.

Probe is disconnected or broken

Colon between center digits indicates
low battery.

Switch OFF. Use coin to undo 2 screws in back
and slide case off. Remove battery from clip
and replace with similar 9V battery.

3.5 mm miniature jack socket on front panel.
10mV/°C

MODEL: BAT-12          SERIAL NO.

BAT-12

OPERATING NOTES

PHYSITEMP INSTRUMENTS INC
154 HURON AVENUE, CLIFTON NJ 07013 U.S.A.          MADE IN 

U.S.A. 

0

18:88

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Summary of Contents for BAT-12

Page 1: ...ODUCTION 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 CALIBRATI...

Page 2: ......

Page 3: ...the same box if small or a separate package if they are longer than 12 inches 2 2 BAT 12 for battery operation is supplied ready for use with a 9V alkaline bat tery already installed Shipment will in...

Page 4: ...read temperature 4 0 BATTERY REPLACEMENT 4 1 When a colon appears in the center of the ditigal display the battery needs to be replaced However BAT 12 can be used without significant calibration error...

Page 5: ...he analog output with strip chart recorder The output impedance of BAT 12 is 2 Kilohms so connection to a potentio metric recorder will not affect either the calibration or accuracy The analog output...

Page 6: ...ronic reference circuitry 6 3 As compared with thermistor sensors which were formerly used exclusively in portable thermometers thermocouples have these advantages a Wide temperature range e g 200 C t...

Page 7: ...nical probes are guaranteed accurate to within 0 1oC in the range 0 50oC Copper Constantan type T thermocouples from other manufacturers are not normally this accurate Probes made from wire to special...

Page 8: ...1 2 handle suitable for use in the hand or in a micromanipulator and the micro thermocouple protrudes slightly beyond the steel sheath and has some thermal isolation from it This probe was designed f...

Page 9: ...og output Remove the output plug d Probe or sensor may be faulty open circuit Check by substituting anoth er probe or by a resistance check All probes should read less than 2000 ohms If you do not hav...

Page 10: ...ter can be invalidated by overheating ensure that this never happens 8 3 Bind the thermocouple probe to the tip of the glass thermometer so that they are close together Do not compress the glass therm...

Page 11: ...d Technology tables NIST monograph 125 Ambient Cold Junction 0 1 C from 0 to 50 C Temp Compensation Readout 3 1 2 digits 1 2 liquid crystal numerals Analog output 10mV per degree C approximately Power...

Page 12: ...itemp aol com 10 2 Physitemp Instruments Inc warrants this system to be free from defects in material or workmanship for 12 months from date of shipment Repair or replace ment will be made at no charg...

Page 13: ...PHYSITEMP INSTRUMENTS INC 154 Huron Avenue Clifton NJ 07013 U S A Tel 973 779 5577 Fax 973 779 5954 e mail physitemp aol com OPERATING MANUAL BAT 12 Microprobe Thermometer...

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