Resistance Measurement
Model 5894 Wide Range Precision Ohmmeter
Features
- Measurement range 1.0000 mOhm to 100.00 kOhm
- Resolution 0.1µOhm
- 0.03% Accuracy
- RS232 interface
- Printer interface
- PLC interface
- Programable limits
For more information about this product contact Tinsley
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With a wide measurement range the new Tinsley 5894 is suitable for applications that require either a milli-ohmmeter or micro-ohmmeter. The robust design is suitable for workshop or laboratory use. It
has an impressive range of features included as standard. Two measurement modes are available: “Fast” for normal resistance and automated processes and “Slow” for the accurate measurement of
inductive devices such as motor and transformer windings. The instrument is also provided with an input protection circuit to guard against voltage spikes that can occur when measuring inductive
components. By simply connecting a resistance thermometer, measurements of copper and aluminium can be made relative to 20°C. A special feature to limit the open circuit voltage to less than 20mV is included to enable “Dry contact resistance” measurements to be made.
Specification
See the table below for a run-down of this product's specifications.
Range
(Manual or Automatic) |
1.0000mOhm to 100.00kOhm |
Resolution |
0.1μOhm |
Over range |
80% to 18,000 |
Max. Uncertainty |
0.03% read. + 2dgt |
Measuring Speed/Time |
10 measurements/second |
Display |
4-½ digits |
Current @ |
1 mOhm |
1 A |
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10 mOhm |
1 A |
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100 mOhm |
100 mA |
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1 Ohm |
10 mA |
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10 Ohm |
1 mA |
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100 Ohm |
1 mA |
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1 kOhm |
100 μA |
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10 kOhm |
100 μA |
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100 kOhm |
10 μA |
Measuring Voltage |
4V (20mV limit for contacts) |
Max. Inductive Power |
< 100 VA |
Temperature Comp. |
With PT100 Probe Range 20°C/23°C |
Temp. coefficient |
Off, Cu or Al |
Zero Correction |
Compensated at each measurement |
Input Protection |
Against inductive spikes |
Error detection display and message (RS232) |
Open potential leads: ‘SEN’ (‘ESEN’) |
Open current leads: ‘CUR’ (‘ECUR’) |
Over range >80%: ‘OVR’ (‘EOVR’) |
Limits |
0... 18,000 upper/lower |
Limits overrun display and message (RS232) |
> or < in front of measured value
'>’ or ‘<’ as first sign of message |
Limit settings |
Manual (keys) or RS232 |
Ports/Interface |
RS232, Parallel Printer, PLC |
Measuring Start Via |
Key, RS232, PLC, Potential free contact |
Dimensions |
280 x 80 x 240 mm (W x H x D) |
Weight |
Approx. 3kg |
Environment |
-10°C to 40°C
-20°C to 60°C
<95% Humidity, not condensing |
For more information about this product contact Tinsley
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