IET Labs LS Series Inductance Decade Substituters

IET Labs LS Series Inductance Decade Substituters

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IET Labs LS Series

Data Sheet

Features:

Direct reading
Accurate
Broad choice of standard and optional models with
many powerful features
Error proof
Color coded
Compact, convenient, and rugged
Options:
- Shielded case with grounding post
- Panel mounting
- Low residual impedance switch
- Protection fuse
- Programmable control

Description

The LS Series are an economical, indispensable collection of tools with a variety of uses in engineering, design, troubleshooting, or service fields.

Direct reading - No fumbling with multiple slide or rotary switches. The IET family of digital substituters uses convenient side by side thumbwheel switches. Simply dial in the desired values and use.

Accurate - In addition to standard 1% economical units, tolerances of 0.1%, 0.05%, 0.01%, and others are available.

Broad choice of standard and optional models with many powerful features -
A full line of standard substituters will satisfy most requirements. Other IET families of precision products include:

Laboratory standards
Transfer standards
Programmable control
RTD simulation
High power
Very high resistance

Error proof - Since the impedance values are set and read directly, no mistakes can be made as with rotary or slide switch decade boxes. No need to examine and sum groups of switches — simply read one number.

Color coded - Different colored switches separate the various impedance ranges.

Compact, convenient, and rugged - Made of high impact plastic, these substituters are very portable and reduce clutter on a busy lab bench.

Options:

Shielded case with ground ing post
Panel mounting
Low residual impedance switch
Protection fuse
Programmable control

Models, Options, & Accessories

Specifications:

Model	RS-200	RS-201	RS-200W	RS-201W	CS-300	CS-301	RCS-500	RCS-502	LS-400	LS-400A
Type of Substituter	Resistance	Precision Resistance	Wide Range Resistance	Wide Range Precision Resistance	Capacitance	Precision Capacitance	Resistance Capacitance	Precision Resistance Capacitance	Wide Range Inductance	Inductance
Accuracy*	±(1%+25 mΩ)	±(0.1%+25 mΩ)	±(1%+30 mΩ)	±(0.1%+30 mΩ)	±(4%+3 pF)	±(1%+3 pF)	Combines RS-200 and CS-300	Combines RS-201 and CS-301	±(2%+0.5 µH)	±(2%+0.5 µH)
Decades	7		9		6				4	3
Range	0 - 9,999,999 Ω		0 - 99,999,999 Ω		0 - 99.9999 µF				0 - 9,999 H	0 - 999 mH
Resolution	1 Ω		0.1 Ω		100 pF				1 mH	1 mH
Type of Components	Metal film resistors; wirewound or resistance wire for 0.9 Ω and under				100-900 pF: mica 0.001 0.009 µF: polystyrene 0.01-0.9 µF: polycarbonate 1-9 µF: polyester 10-90 µF: polarized tantalum				Toroidal Inductors
Ratings	0.5 W**				100 V (20 V for 10 - 100 µF)				See Table Below
Residual Impedance	0.3 O (0.04 O/dec.)†, typical		0.3 O (0.04 O/dec.)†, typical		30 pF(5 pF/dec) typical				0.2 Ω (0.04 Ω/dec.)†, typical
Physical	8.1 x 7.9 x 5.6 cm; 184 g (3.2 x 3.1 x 2.2 in; 6.5 oz.)		12 x 7.9 x 5.6 cm; 235 g (4.7 x 3.1 x 2.2 in; 8.3 oz)		12 x 7.9 x 5.6 cm; 235 g (4.7 x 3.1 x 2.2 in; 8.3 oz)		18.8 x 11 x 6 cm, 410 g (7.4 x 4.3 x 2.4 in, 14 oz)		12 x 7.9 x 5.6 cm, 230 g (4.7 x 3.1 x 2.2 in, 8 oz)

* Accuracy after subtraction of the Residual Impedance; traceable to NIST. LS-400 and LS-400A Test Conditions: 1 kHz; 1 Vrms; series model; 23°C.

** Higher power resistance substituters (1 W or higher) avail able; see optional models below or HPRS data sheet.

† Residual Impedance may be reduced to 0.04 O or 5 pF for lowest decade with LR Option. This makes for more effective usage at low impedances. Lowest decade is isolated from others with a switch when desired.

Additional Information for Inductance Substituters

Inductance	Frequency Range	Max Q	Rating
0.1 - 0.9 mH	300 Hz - 2 MHz	100 @ 80 kHz	700 mA
1 - 9 mH	300 Hz - 1 MHz	80 @ 40 kHz	500 mA
10 - 90 mH	300 Hz - 800 kHz	80 @ 40 kHz	300 mA
0.1 - 0.9 H	300 Hz - 200 kHz	40 @ 20 kHz	100 mA
1 - 9 H	200 Hz - 20 kHz	30 @ 8 kHz	20 mA
10-90 H	200 Hz - 6 kHz	60 @ 80 2 kHz	4 mA

IET Labs
Main Page

IET Labs
Inductance Decade Boxes

IET Labs
Price List

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