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Model 789 ProcessMeter™

 

Technical Specifications

Current Sourcing

Range: 0-20 mA or 4-20 mA
Resolution: 0.05% of span
Drive Capability: 24 V Compliance or 1200 W @ 20 mA

Current Measurement

Range: 0-1 A AC or DC
Resolution: 1 mA
Accuracy: 0.2% + 2 LSD (DC)

Range: 0-30 mA
Resolution: 0.001 mA
Accuracy: 0.05% + 2 LSD

Frequency

to 19.999 kHz, 0.005% + 1 LSD

Continuity

Beeps for resistance < 100 W

Voltage measurement

Range: 0-1000 V AC (true-rms) or DC
Resolution: 0.1 mV to 1.0 V
Accuracy: 0.1% Rdg + 1 LSD (VDC)

Resistance measurement

to 40 MW, 0.2% + 1 LSD

Diode test

2.0 V shows diode voltage drop

Display current and % of span

Yes

Auto step, auto ramp

Yes

 
 

Environmental Specifications

Operating Temperature

-20 ēC to 55 ēC

Storage Temperature

-40 ēC to 60 ēC

Humidity (Without Condensation)

95% up to 30 ēC
75% up to 40 ēC
45% up to 50 ēC
35% up to 55 ēC

Temperature coefficient

0.05 x (specified accuracy) per ēC
(for temperatures < 18 ēC or > 28 ēC)

 
 

Safety Standards

Electrical Safety

Designed in accordance with IEC 1010-1, ANSI/ISA S82.01-1994 and CAN/CSA C22.2 No. 1010.1-92

Overvoltage category

IEC 1010-1 CAT III

Maximum voltage

1000 V rms

 
 

General Specifications

Size

50 x 100 x 203 mm

Weight

600 g

Batteries

4 AA Alkaline batteries

Warranty

3 years

Battery life

140 hours typical (measurement),
10 hours typical (sourcing 20 mA)

Shock & Vibration

Random, 2 g, 5-500 Hz
1 meter drop test

 


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Rapid-Tech Equipment
ABN 79 883 184 102
1300 Ferntree Gully Road. Scoresby. Victoria 3179
P.O. Box 4243 Knox City Centre. Victoria 3152

Phone: +61 3 9763 3299     Fax: +61 3 9753 2132