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Digital thermometer

Type: 307P

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This instrument is a portable 3½ digit, compact-sized digital thermometer designed to use external K-type thermocouple as temperature sensor.

 

Temperature indication follows National Bureau of Standards and IEC 584 temperature/voltage tables for Ktype thermocouples. One K-type thermocouple is supplied with the thermometer.

 

  • Capable of receiving two Type K thermocouple inputs
  • Differential display of the two thermocouple inputs
  • Hand held with moulded rubber holster and wrist strap
  • ±0.1°C/°F or 1°C/°F auto ranging resolution
  • Accuracy: -50°C to 0°C ±0.2°C, 0°C to 600°C ±0.3% of reading +1°C, 600°C to 1300°C ±0.5% of reading +1°C
  • 14mm high digits in LCD display
  • Offset adjustment
  • Weight 300g
  • Power supply: 9V battery (supplied)

 

Electrical specification

 

Temperature Scale: Celsius or Fahrenheit user-selectable


Measurement Range:
-50°C to 1300°C, (-58°F to 2000°F)


Resolution:
1°C or 1°F, 0.1°C or 0.1°F


Accuracy:
Accuracy is specified for operating temperatures over the range of 18°C to 28°C (64°F to 82°F), for 1 year, not including thermocouple error.
±( 2°C ) -50°C to 0°C
±( 0.3% rdg + 1°C ) 0°C to 600°C
±( 0.5% rdg + 1°C ) 600°C to 1300°C


Temperature Coefficient:
0.1x( specified accuracy ) per °C . ( 0°C to 18°C , 28°C to 50°C ).


Input Protection:
60V dc or 24V rms ac maximum input voltage on any combination of input pins.


Reading Rate:
2.5 times per second.


Input Connector:
Accepts standard miniature therm ocouple connectors (flat blades spaced 7.9mm,center to center).

 

Environmental

 

Ambient Operation Range: 0°C to 50°C, (32°F to 122°F)


Storage Temperature:
-20°C to 60°C, (-4°F to 140°F)


Relative Humidity:

0% to 80% (0°C to 35°C) (32°F to 95°F)
0% to 70% (35°C to 50°C) (95°F to 122°F)

 

General

 

Display: 3½ digit liquid crystal display (LCD) with maximum reading of 1999


Battery:
Standard 9V battery (NEDA 1604,IEC 6F22)


Battery Life:
100 hours typical with carbon zinc battery, 200 hours typical with alkaline battery


Dimensions:
184mm (H) x 62mm (W) x35mm (D)


Weight:
10.6oz (300g) including holster


Supplied Probe:
4-foot type “K” thermocouple bead probe (teflon tape insulated). Maximum insulation temperature 260°C (500°F).

  • Description
  • This instrument is a portable 3½ digit, compact-sized digital thermometer designed to use external K-type thermocouple as temperature sensor.

     

    Temperature indication follows National Bureau of Standards and IEC 584 temperature/voltage tables for Ktype thermocouples. One K-type thermocouple is supplied with the thermometer.

     

    • Capable of receiving two Type K thermocouple inputs
    • Differential display of the two thermocouple inputs
    • Hand held with moulded rubber holster and wrist strap
    • ±0.1°C/°F or 1°C/°F auto ranging resolution
    • Accuracy: -50°C to 0°C ±0.2°C, 0°C to 600°C ±0.3% of reading +1°C, 600°C to 1300°C ±0.5% of reading +1°C
    • 14mm high digits in LCD display
    • Offset adjustment
    • Weight 300g
    • Power supply: 9V battery (supplied)

     

    Electrical specification

     

    Temperature Scale: Celsius or Fahrenheit user-selectable


    Measurement Range:
    -50°C to 1300°C, (-58°F to 2000°F)


    Resolution:
    1°C or 1°F, 0.1°C or 0.1°F


    Accuracy:
    Accuracy is specified for operating temperatures over the range of 18°C to 28°C (64°F to 82°F), for 1 year, not including thermocouple error.
    ±( 2°C ) -50°C to 0°C
    ±( 0.3% rdg + 1°C ) 0°C to 600°C
    ±( 0.5% rdg + 1°C ) 600°C to 1300°C


    Temperature Coefficient:
    0.1x( specified accuracy ) per °C . ( 0°C to 18°C , 28°C to 50°C ).


    Input Protection:
    60V dc or 24V rms ac maximum input voltage on any combination of input pins.


    Reading Rate:
    2.5 times per second.


    Input Connector:
    Accepts standard miniature therm ocouple connectors (flat blades spaced 7.9mm,center to center).

     

    Environmental

     

    Ambient Operation Range: 0°C to 50°C, (32°F to 122°F)


    Storage Temperature:
    -20°C to 60°C, (-4°F to 140°F)


    Relative Humidity:

    0% to 80% (0°C to 35°C) (32°F to 95°F)
    0% to 70% (35°C to 50°C) (95°F to 122°F)

     

    General

     

    Display: 3½ digit liquid crystal display (LCD) with maximum reading of 1999


    Battery:
    Standard 9V battery (NEDA 1604,IEC 6F22)


    Battery Life:
    100 hours typical with carbon zinc battery, 200 hours typical with alkaline battery


    Dimensions:
    184mm (H) x 62mm (W) x35mm (D)


    Weight:
    10.6oz (300g) including holster


    Supplied Probe:
    4-foot type “K” thermocouple bead probe (teflon tape insulated). Maximum insulation temperature 260°C (500°F).

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Cold Junction Compensation = °C

Calculate value of resistance to temperature
(values according to ITS-90 scale)

R = Ω  T = 0 °C

Calculate value of temperature to resistance
(values according to ITS-90 scale)

T = °C R = 0 Ω

Limit values for the calculator

-200 °C - 850 °C

18,52 Ω - 390,48 Ω

Cold Junction Compensation = °C

Calculate value of resistance to temperature
(values according to ITS-90 scale)

R = Ω  T = 0 °C

Calculate value of temperature to resistance
(values according to ITS-90 scale)

T = °C R = 0 Ω

Limit values for the calculator

-60 °C - 250 °C

69,52 Ω - 289,16 Ω

Cold Junction Compensation = °C

Calculate value of thermoelectric emf to temperature

E = mV T = 0 °C

Calculate value of temperature to thermoelectric emf

T = °C  E = 0 mV

Limit values for the calculator

-210 °C - 1200 °C

-8,095 mV - 69,553 mV

Cold Junction Compensation = °C

Calculate value of thermoelectric emf to temperature

E = mV T = 0 °C

Calculate value of temperature to thermoelectric emf

T = °C  E = 0 mV

Limit values for the calculator

-270 °C - 1372 °C

-6,458 mV - 54,886 mV

Cold Junction Compensation = °C

Calculate value of thermoelectric emf to temperature

E = mV T = 0 °C

Calculate value of temperature to thermoelectric emf

T = °C  E = 0 mV

Limit values for the calculator

-270 °C - 1300 °C

-4,345 mV - 47,513 mV

Cold Junction Compensation = °C

Calculate value of thermoelectric emf to temperature

E = mV T = 0 °C

Calculate value of temperature to thermoelectric emf

T = °C  E = 0 mV

Limit values for the calculator

-270 °C - 1000 °C

-9,835 mV - 76,373 mV

Cold Junction Compensation = °C

Calculate value of thermoelectric emf to temperature

E = mV T = 0 °C

Calculate value of temperature to thermoelectric emf

T = °C  E = 0 mV

Limit values for the calculator

-270 °C - 400 °C

-6,258 mV - 20,872 mV

Cold Junction Compensation = °C

Calculate value of thermoelectric emf to temperature

E = mV T = 0 °C

Calculate value of temperature to thermoelectric emf

T = °C  E = 0 mV

Limit values for the calculator

-50 °C - 1768.1 °C

-0,226 mV - 21,103 mV

Cold Junction Compensation = °C

Calculate value of thermoelectric emf to temperature

E = mV T = 0 °C

Calculate value of temperature to thermoelectric emf

T = °C  E = 0 mV

Limit values for the calculator

-50 °C - 1768.1 °C

-0,236 mV - 18,694 mV

Cold Junction Compensation = °C

Calculate value of thermoelectric emf to temperature

E = mV T = 0 °C

Calculate value of temperature to thermoelectric emf

T = °C  E = 0 mV

Limit values for the calculator

0°C - 1820 °C

-0,003 mV - 13,820 mV

Pomoc. Instrukcja użytkownika.

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