Fluke 789 ProcessMeter - Test Functions & Output Modes; General & Environmental Specifications

789
Users Manual
44
Diode Test and Continuity Test
Diode test indication: Displays voltage drop across
device, 2.0 V full scale. Nominal test current 0.2 mA at 0.6
V. Accuracy ±(2 % + 1 count).
Continuity test indication: Continuous audible tone for
test resistance < 100 Ω
Open circuit voltage: < 2.9 V
Short circuit current: 220 μA typical
Overload protection: 1000 V rms
Loop Power Supply
Voltage: 24 V, Short Circuit protected
DC Current Output
Source mode:
Span: 0 mA or 4 mA to 20 mA, with overrange to 24 mA
Accuracy: 0.05 % of span
1
Compliance voltage: 28 V with battery voltage >~4.5 V
Simulate Mode:
Span: 0 mA or 4 mA to 20 mA, with overrange to 24 mA
Accuracy: 0.05 % of span
1
Loop voltage: 24 V nominal, 48 V maximum, 15 V
minimum
Compliance voltage: 21 V for 24 V supply
Burden voltage: < 3 V
General Specifications
Maximum voltage applied between any jack and earth
ground: 1000 V
Storage temperature: -40 °C to 60 °C
Operating temperature: -20 °C to 55 °C
Operating altitude: 2000 meters maximum
Temperature coefficient: 0.05 x specified accuracy per
°C for temperatures < 18 °C or > 28 °C
1
0.1 x specified
accuracy per °C for temperatures < 18 °C or > 28 °C