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Programmable Decade.

The PRS Programmable Resistance Capacitance Inductance Decades.
A broad range of laboratory grade decade substituters for applications requiring a cost effective
programmable impedance unit controlled manually and by a computer.

Wide range and resolution:
Resistance: 1 mΩ to 100 MΩ
Capacitance:1pF - 1000µF
Inductance: 1mH - 10 H

Programmable Decade

Model  Description 
PZS  PZS Programmable Decade.

Dual PZS Resistance
Multiple control mode:
Thumbwheel switch
IEEE-488.1
IEEE-488.2 (w/SCPI)
RS232C (w/SCPI)
National Instruments LabVIEW hardware and software tools available
Special RTD and custom configurations High power versions
Programmable "open circuit" and "short circuit" states optional

 Programmable capacitance decade

Choice of Performance:
PRS-200 Series - economical 1% accuracy
PRS-201 Series - laboratory 0.1% accuracy
PRS-202 Series - high accuracy to 0.01%
PRTD Series - programmable RTD simulation.
Package Configuration: Convenient standard 19" rack mounting or more portable benchtop versions are available. Both single and dual units are available.
Low thermal emf: Specially selected relays along with tellurium copper binding posts insure minimum thermal emf drift.
High Power: Power of 100’s of watts and high current options are available.
 Programmable inductance standard

Combinations:
Dual or combination resistance-capacitance-inductance models may be configured
Special Requirements: High voltage nonstandard values, ultra low tempco o special programming needs can be accommodated.
Rear Outputs: Single or dual front and rear outputs are available with option RO.
Wide choice of impedance ranges:
resistance, capacitance and inductance of up to 10 decades may be specified. Resistance may range from 1 m to 100 M.

PRS Programmable decades
Model PRS-200 PRS-201 PRS-200W PRS-201W PRS-202 PRS-202W PRTD
Type Resistance Precision
Resistance
Wide Range
Resistance
Wide Range
Precision
Resistance
High
Precision
Resistance
Wide Range
High Precision
Resistance
Precision
Absolute
Value Resistance
Accuracy 1% +70
0.1%+ 30
1%+ 70
0.1%+ 30
0.05% + 15 mΩ 0.05% + 15
Decades 7 9 7 9 6 or more
Range 0 - 9,999,999 Ω 0 - 99,999,999.9 Ω 0 -
9,999,999
Ω
0 -
99,999,999.9
 Ω
4-10,003.99 Ω
Resolution 1 Ω 0.1 Ω 1 Ω 0.1 Ω 0.01 or 0.001 Ω
Max. Load* 0.5 A, 200 V (dc + ac peak), 0.2 W/step,
2 W unit, whichever applies first.*
3 A, 200 V (dc + ac peak), 0.5 W/step,
4.5W/unit, whichever applies first.*

Model PCS-300 PCS-301 PLS-400 PLS400A
Type Precision
Capacitance
Wide
Range
Inductance
Range Inductance
Accuracy 4% + 5 pF 1% + 3 pF 2%
Decades 6 4 3
Range 0 - 99.999 9 F 0 - 9.999 H 0 - 999 H
Resolution 100 pF 1 mH 1 mH
Type of
Components
100-900 pF: Mica
0.001-0.009 F: Polystyrene
0.01-0.9 F: Polycarbonate
1-9 F: Polyester
10-90 F: Polarized tantalum
Toroidal inductors
Max. Load* 100 V (20 V for 10-100 F)
Residual
Impedance
7 pF, typical

* These specifications are dynamic switching limits.
The maximum voltage, power, or current which may be applied at any particular resistance setting may be
higher as long as the setting is unchanged, or the unit is switched dry.