Model 5894 Wide Range Precision Ohmmeter

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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

General
Specification

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.

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
	10 mOhm	1 A
	100 mOhm	100 mA
	1 Ohm	10 mA
	10 Ohm	1 mA
	100 Ohm	1 mA
	1 kOhm	100 μA
	10 kOhm	100 μA
	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