Specifications - Fluke 77 Calibration Information Manual

Model 77 Series IV
Calibration Information

Specifications

Accuracy is specified for 1 yr after calibration, at operating temperatures of 18 °C to 28 °C, with relative humidity at 0 % to 90 %. Accuracy
specifications take the form of ±([ % of Reading ] + [ Counts ]).
Maximum voltage between any
terminal and earth ground ................................... 1000 V
Surge protection ................................................... 8 kV peak per IEC 61010
W Fuse for mA inputs .......................................... 440 mA, 1000 V FAST Fuse
W Fuse for A inputs ............................................. 11 A, 1000 V FAST Fuse
Display
Digital.............................................................. 6000 counts, updates 4/sec
Bar Graph ....................................................... 33 segments; Updates 32/sec
Frequency....................................................... 10,000 counts
Capacitance.................................................... 1,000 counts
Altitude
Operating ............................................................ 2,000 meters
Storage ............................................................... 12,000 meters
Temperature
Operating ........................................................ -10 °C to +50 °C
Storage ........................................................... -40 °C to +60 °C
Temperature coefficient ....................................... 0.1 X (specified accuracy / °C (<18 °C or >28 °C)
Electromagnetic Compatibility
(EN 61326-1:1997) ................................................. In an RF field of 3 V/M, accuracy = specified accuracy except in temperature: specified
Relative Humidity (Maximum Non-condensing). 90 % to 35 °C
Battery Life ............................................................ 400 hrs typical (Alkaline)
Size (H x W x L) ..................................................... 4.3 cm x 9 cm x 18.5 cm
Weight.................................................................... 420 g
Safety Compliance................................................ ANSI/ISA S82.02.01, CSA C22.2-1010.1, IEC 61010 to 1000 V Measurement Category
Certifications......................................................... CSA, TÜV (EN61010), UL, P, ; (N10140),VDE
4
accuracy ± 5 °C (9 °F)
75 % to 40 °C;
45 % to 50 °C
III, 600 V Measurement Category IV