3205B Micro Ohm Meter

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Model 3205B Micro-Ohmmeter - Discontinued
New Model 3207

Product Summary

The BLI 3205B 4½ digit micro-ohmmeter makes high accuracy low resistance measurements with ease. The proven 4-wire measurement method cancels lead resistance errors inherent in 2 wire systems. The stability achieved in the 3205B design allows for quick precision measurements to be made without the time consuming and painstaking adjustments by conventional bridge techniques.

Applications:

cables, components, skin and frame bonds, PC boards, bus bars & contactors, electrodes, motors & transformers systems

Product Features

	4½ digit display
	True 4-wire input eliminates lead resistance error
	Pulse Mode Operation
	Rechargeable Internal Battery-optional
	20 mW to 2000 W Full Scale Ranges
	1 mW resolution
	Basic Accuracy 0.03%

Product Specifications

Ranges

Range	Maximum Reading	Resolution	Maximum Current	Maximum Dissipation*
20 mW	19.999 mW	1 mW	1 A	10 mW
200 mW	199.99 mW	10 mW	100 mA	1 mW
2000 mW	1999.9 mW	100 mW	10 mA	0.1 mW
20 W	19.999 W	1 mW	10 mA	1 mW
200 W	199.99 W	10 mW	1 mA	0.1 mW
2000 W	1999.9 W	100 mW	0.1 mA	0.01 mW

* At half power

Accuracy
± (0.03% Rdg. + 0.02% of range + 2 digits) for all ranges.
Reference Condition: 25° C, 50% RH, Temp. Co. (±5 ppm of reading per °C)

Input Termination
4-Wire(2 voltage and 2 current binding posts)

Input Protection
Maximum input voltage 250 V rms, 300 V pk (ac+dc)
Current terminals protected by 1 A fuse, accessible on rear panel

Compliance Voltage
approximately 2 V

Zero Adjust
Front panel screwdriver adjustment

Display
4 ½ digits max., 19,999 counts, 0.5" LED

Warm-up
15 minutes for specified accuracy

Operating Modes
Continuous:
Continuous:
Read rate approx. 2 Rdg's/sec
Pulse:
Test current pulsed when MEASURE pushbutton depressed. Display stored until next pushbutton action. Pulse duration of 1.4 sec. ± 0.1 sec.

Optional Rechargeable Battery: A minimum of 8 hours continuous operation for all ranges, except the 20mW range. To achieve 8 hours of operation for the 20mW range, the unit must be operated in the pulse mode.

Overload
Display blinks over 19,999 counts in CONTINUOUS operating mode and blanks out over 19,999 counts in PULSE mode

Environmental Characteristics
Operating:
Operating:
Temp 10° to 45° C, RH less than 80% to 40 C

Storage
Temp. -40° to 75° C, RH no condensation

Dimensions
Height 3-1/16" (76 mm), Width 8-3/4" (222 mm), Length 10-1/2" (273 mm)
Weight 6 lbs. 1 oz (2.77 kg)

Power
90-132 V, 50-400 Hz
198-265 V 50-400 Hz

Ordering Information - this product is discontinued

Revised: March 28, 2008.