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Fluke 789 ProcessMeter
| Measurement Function |
| V dc |
Range and Resolution
400.0 mV, 4.000 V, 40.00 V, 400.0 V, 1000 V
Best Accuracy (% of reading + LSD)
0.1 % + 1 |
| V ac (true-rms) |
Range and Resolution
400.0 mV, 4.000 V, 40.00 V, 400.0 V, 1000 V
Best Accuracy (% of reading + LSD)
0.7 % + 2 |
| mA dc |
Range and Resolution
30.000 mA
Best Accuracy (% of reading + LSD)
.05 % + 2 |
| A dc |
Range and Resolution
1.000 A (0.440 A continuous)
Best Accuracy (% of reading + LSD)
0.2 % + 2 |
| A ac |
Range and Resolution
1.000 A (0.440 A continuous)
Best Accuracy (% of reading + LSD)
1 % + 2 |
| Resistance |
Range and Resolution
400.0 Ohms, 4.000 k, 40.00 k, 400.0 k, 4.0 M, 40 M
Best Accuracy (% of reading + LSD)
0.2 % + 1 |
| Frequency (0.5 Hz to 20 kHz) |
Range and Resolution
199.99 Hz, 1999.9 Hz, 19.999 kHz
Best Accuracy (% of reading + LSD)
.005 % + 1 |
| Diode Test |
Range and Resolution
2.000 V (shows diode voltage drop)
Best Accuracy (% of reading + LSD)
2 % + 1 |
| Continuity |
Range and Resolution
Beeps for resistance < approx. 100 ohms |
| Output Function |
DC Current Output
(Internal battery operation) |
Range and Resolution
0.000 to 20.000 mA or 4.000 to 20.000 mA
(selectable at power-up)
Over-range to 24.000 mA
Drive Capability (% of span)
24 V compliance, or,
1,200 Ohms, @ 20 mA
Accuracy
.05 % |
DC Current Simulate
(Ext. 24 Volt loop supply) |
Range and Resolution
0.000 to 20.000 mA or 4.000 to 20.000 mA,
(selectable at power-up)
Over-range to 24.000 mA
Drive Capability (% of span)
1000 Ohms, @ 20 mA
Accuracy
.05 % |
| 24 V Loop Supply |
Range and Resolution
Minimum 24 V
Drive Capability (% of span)
250 Ohms @ 20 mA
Accuracy
> 24 V |
| Current Adjustment Modes |
Range and Resolution
Manual: 0.001 mA, 0.1 mA, 25 % and 100 % step
Automatic: Slow Ramp, Fast Ramp, 25 % step |
*Temperature range of 18 °C to 28 °C, for one year after calibration
| General Specifications |
Maximum voltage applied between
any jack and earth ground: |
1000 V RMS |
| Storage temperature: |
-40 °C to 60 °C |
| Operating temperature: |
-20 °C to 55 °C |
| Temperature coefficient: |
0.05 x (specified accuracy) per °C (for temperatures < 18 °C or > 28 °C) |
| Relative humidity |
95 % up to 30 °C;
75 % up to 40 °C; 45 % up to 50 °C;
35 % up to 55 °C |
| Vibration: |
Random, 2 g, 5-500 Hz |
| Shock: |
1 meter drop test |
| Safety: |
Designed in accordance with
EN61010, ANSI/ISA S82.01-1994 and
CAN/CSA C22.2 No. 1010..1-92
Over-voltage Category III |
| Size: |
50 mm H x 100 mm W x 203 mm L
(1.97 in H x 3.94 in W x 8.00 in L) |
| Weight: |
600 g (1.3 lbs) |
| Battery: |
Four AA alkaline batteries |
| Battery life: |
140 hours typical (measurement), 10 hours typical (sourcing 12 mA) |
| Warranty: |
3 years |
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