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407907-EN v1.5 10/13
2
Introduction
Congratulations on your purchase of the Heavy Duty Extech 407907 RTD Thermometer which
offers high precision and selectable 0.1
o
and 0.01
o
resolution. The LCD display provides low
battery and overload indication. Selectable temperature units °C & °F provides measurement
versatility. This meter is shipped fully tested and calibrated and with proper use will provide years
of reliable service.
Specifications
General Specifications
Display
4-1/2 digit (20,000 count) LCD display with over-range
and low battery indication
Measurement
Temperature (selectable °C & °F units)
Data Hold
Freezes displayed reading
RTD Probes (sold separately)
4-wire platinum 100 RTD;
0.00385 alpha coefficient (meet DIN IEC 751)
RTD probe jack
Proprietary 4 pin circular connector
(uses Extech RTD probes – sold separately)
Sampling Time
Approximately 0.4 seconds
Memory record/recall
Meter stores Maximum and Minimum readings
Data Output
RS-232 PC Interface
Operating conditions
Temperature: 32°F to 122°F (0°C to 50°C); RH: < 80%
Power Supply
9V battery
Power consumption
15 mA DC (approx.)
Weight
0.53 lbs. (242g)
Dimensions
7.1 x 2.8 x 1.3” (180 x 72 x 32 mm)
Range Specifications
Temperature Ranges
Resolution
Accuracy (% of reading)
o
F
-199.99
o
to 392.00
o
F
0.01
o
F
± (0.1% + 0.4
o
F) *
392.0
o
to 1562.0
o
F
0.1
o
F
o
C
-199.99
o
to 199.00
o
C
0.01
o
C
± (0.1% + 0.2
o
C) *
200.0
o
to 850.0
o
C
0.1
o
C
* Probe accuracy is additional