PRS IET | Alldatasheet

Document overview

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Technical content

Features

  • Resistance from 1 mΩ/step to

10 MΩ /step

  • Accuracy: ±(0.01% + 15 mΩ) to ±(1% + 70 mΩ)
  • Manganin wire for resistance values < 1 Ω/step
  • Precision metal fi lm resistors for PRS-200 and PRS-201 for 1 Ω/step and over
  • Sealed wirewound non-inductive resistors for PRS-202 for 1 Ω/step to 100 kΩ/step
  • Precision metal oxide fi lm resistors for 1 MΩ and higher steps for PRS-202 PRTD - Programmable RTD Simulator
  • Absolute reading, no "zero" resistance correction required
  • Resistance from 4 Ω to 1000 Ω /step
  • Resolution: 0.001 Ω PRS Programmable Resistance Subs tuter with -D Digital Display and -RM rack mount op ons
  • Accuracy: ±(0.02% + 10 mΩ) PCS - Programmable Capacitance Substituter The PCS Series of programmable capaci- tance substituters is ideal for both laboratory and industrial applications requiring highly reliable and automated switching of capaci- tance.
  • Capacitance from 100 pF to 10 µF /step
  • Accuracy: ±(0.5% + 3 pF) to ±(4% + 3 pF)
  • 100 pF to 100 nF/Step decades utilize mica capacitors PLS - Programmable Inductance Substituter The PLS Series of programmable inductance substituters is ideal for both laboratory and industrial applications requiring highly reli- able and automated switching of capacitance. The PLS is similar to the IET 1492 Decade Inductor.
  • Inductance from 1 mH to 1H /step
  • Accuracy: ± 2% RESISTANCE - RTD CAPACITANCE IND UCTANCE
  • Single or dual (two subs tuters in one chassis) versions
  • Built to order so completely confi gurable at no added cost
  • Special and high power versions available, contact IET Labs. with your requirements.

IET LABS, INC. in the Gen Rad Tradition www.ietlabs.com TEL: (516) 334-5959 • EMAIL: info@ietlabs.com Programmable Resistance - Capacitance - Inductance - RTD Decade Substituter PRS-PCS-PLS-PRTD Series Page 2 of 5 PRS Catalog Nov 2021 OPTIONS AND CONFIGURATIONS Dual PRS Resistance and PCS Capacitance Subs tuter with rack mount op on Model PRS-201 Bench Resistance Subs tuter Choice of Performance: PRS-200 Series - economical 1% ac- cu ra cy PRS-201 Series - laboratory 0.1% ac- curacy PRS-202 Series - high accuracy to 0.01% and improved stability using wire-wound resistors for 1 Ω/step to 100 kΩ/step for stability of 10 ppm/year. This compares to 50 ppm/year using precision metal fi lm resistors in the PRS 200 and 201. Digital Display (D Option): Shows the remotely programmed or manu- ally set value. This is useful for con fi rm ing or mon i tor ing the selected com mand val ue, remote or local. This option requires the rack mount RM option. Wide choice of impedance ranges: re sis tance, capacitance and in duc tance of up to 10 decades may be specifi ed. Resistance may range from 1 mΩ to 100 MΩ. Package Confi guration: Convenient stan dard 19" rack mounting (RM) or more por ta ble benchtop versions, are available. Both sin gle and dual units are available. Combinations: Dual units can combine any two re sis tance, capacitance, induc- tance substituters in one chassis. Rear Outputs: Single or dual front panel binding posts are standard. Rear binding post outputs are available with option RO. PRTD: Low-resistance models with a fi xed minimum re sis tance setting (4 Ω. or as specifi ed by customer) are suit able for RTD (Re sis tance Tem per a ture De- tector) sim u la tions. This design vir tu al ly elim i nates the eff ect of zero resistance and relay contact re sis tance, providing the spec i fi ed absolute accuracy over its entire range. Short-Circuit (SC) and Open-Circuit (OC) Options: Optional short-circuit and open-circuit modes of operation. These states are con trolled only in the RE MOTE pro gram ming mode. The O pen Circuit OC option gives the user an open circuit immediately in series with the HI bind ing post during switching between values. The Short Circuit SC operation gives the user a short circuit across the HI and the LO binding posts during switching. The short circuit imped- ance is very small, <20 mΩ, typically 5 mΩ. This is lower than the regular zero resistance setting. In both these cases, the un der ly ing re sis tance set ting is un af- fect ed and may still be controlled. Special Customer Requirements: High volt age, nonstandard values, high stability, ultra-low temp erature coeffi cient or improved accuracy can be ac com- mo dat ed. High-Power Options: Power dissipa- tion requirements of up to 500 Watts can be accommodated. -D Digital Display Op on PLS Programmable Inductance Subs tuter with digital display and rack mount op ons

IET LABS, INC. in the Gen Rad Tradition www.ietlabs.com TEL: (516) 334-5959 • EMAIL: info@ietlabs.com Programmable Resistance - Capacitance - Inductance - RTD Decade Substituter PRS-PCS-PLS-PRTD Series Page 3 of 5 PRS Catalog Nov 2021 REMOTE CONTROL AND PROGRAMMING Remote Control Options: IEEE-488: GPIB interface features *IDN? and cal date query, allow- ing you to improve your instrument and calibration tracking capabilities. GPIB addressing is controlled via DIP switch es or commands on the GPIB bus. RS232: This interface conforms to EIA-STD-RS-530; with a 25 pin DTE interface. The PRS is a standard DTE device in RS232 mode. Connection to a PC is made via a null-modem cable. Ethernet: This interface conforms to IEEE 802.3 When equipped with any remote con- trol functionality, the PRS front pan el switch de ter mines if RE MOTE mode is en abled. Regardless of remote control type, setting the front panel switch to the LOCAL po si tion al ways dis ables the re mote control “set” value. Supported commands include: *IDN?, *RST, *SAV, *STB?, SYST: ERR?, CAL:DATE? and SOURce:DATA <VAL- UE> The remote output value is set by sending a ‘SOURCe:DATA’ com mand fol lowed by a string that represents the digits as they would be se lect ed using the thumbwheels. Leading and trailing zeros are re quired to set each decade prop er ly; the dec i mal point is not used. LABVIEW DRIVERS AND SOFTWARE LabVIEW instrument drivers are avail- able for units equipped with GPIB or RS232C options. These drivers are written based on the National Instru- ments instrument template, using VISA handles and standard initialize, confi g- ure and query functions. To aid the user in operating the PRS/ PCS/PLS, two “Keyboard” Controller programs - the easiest way to control GPIB or RS232 devices without writ- ing a program - are available from IET. This Keyboard programs automatically fi nds your device at start-up and it lets For ex am ple; the PRS-202-IEEE has a least sig nifi cant digit value of 1 mΩ and a remote logic maximum of 12 com mand decades. To set a value of 50,000.045 Ω, the com mand string would be: SOURCe:DATA 000050000045 The PRS-201 & PRS-202 RS-232 has a least signifi cant digit value of 0.1 Ω and a remote logic maximum of 10 command decades. To set a value of 2,500.8 Ω, the com mand string would be: SOURCe:DATA 0000025008 you enter just the data that you want to send to the device. This program works with ICS and National Instruments GPIB cards.

IET LABS, INC. in the Gen Rad Tradition www.ietlabs.com TEL: (516) 334-5959 • EMAIL: info@ietlabs.com Programmable Resistance - Capacitance - Inductance - RTD Decade Substituter PRS-PCS-PLS-PRTD Series Page 4 of 5 PRS Catalog Nov 2021 SPECIFICATIONS User interface: Front panel switch se lects RE MOTE (Optional: IEEE-488 , Ethernet or RS-232 interface) or LOCAL (front-panel thumbwheel) operation. Accuracy: The accuracy shown in the chart below applies after sub trac tion of the "zero setting" residual impedance. Accuracy (PRTD): The absolute accuracy indicated be- low applies with out requiring subtraction of "zero setting" residual impedance. Min. setting (PRTD): 4 Ω or customer specifi ed. Thermal emf: < 15 µV; < 10 µV, typical. Terminals : Four low-emf, gold-plated, tellurium-cop per 5-way bind ing posts are used for HI and LO ter mi nal pairs for CUR RENT and SENSE. GND bind ing post is con- nect ed to the case, to the chassis ground and to the earth ground. Rear outputs are available with the RO option. Switching time: <4 ms per change; <7 ms for ≤0.05% units. Power requirements: 90 - 264 Vac , 47 - 63 Hz. 30 Watts Max. Dimensions: Bench model: 22 cm W x 12 cm H x 24 cm D (8.5" x 4.44" x 9.25") Rack model: Panel: 48.3 cm W x 13.2 cm H (19" x 5.2"); behind panel: 42.7 cm W x panel: 3.8 cm (1.5"). Weight: Bench model: 2.0 kg (4.5 lb); Rack model: 4.5 kg (10 lb); Dual rack mount model: 6.4 kg (14 lb); weight specifi cations are nominal. Remote Control Options: IEEE: GPIB standard 24 pin connector, conforms to IEEE-488.2; SCPI 1994.0 command set; Hardware or software confi gurable addressing range of 0 to 30. RS232: 25 pin male DTE interface conforms to EIA- STD-RS-530; SCPI 1994.0 command set; data rates from 300 to 115200 bps. Ethernet: IEEE 802.3 compliant, Speeds 10 BaseT (10 Mb/s) and 100 BaseT (100 Mb/s), IP Address Static or DHCP, Factory setting 192.168.1.254 static Model PRS-200 PRS-201 PRS-200W PRS-201W PRS-202 PRS-202W PRTD PCS-300 PCS-301 PLS-400 PLS400A Type Resistance Precision Resistance Wide- Range Resistance Wide-Range Precision Resistance High-Precision Resistance Wide-Range High-Precision Resistance Precision Absolute-Value Resistance Precision Capacitance Wide-Range Capacitance Wide-Range Inductance Inductance Decades 7 9 7 9 6 or more 6 4 3 Resolution 1 W 0.1 W 1 W 0.1 W 0.01 or 0.001 W 100 pF 1 mH Type of Compo- nents Resistance wire for 0.1 W steps and under Precision metal fi lm for 1 W steps and over Resistance wire for 0.1 W steps and under Wirewound, sealed non-inductive resistors for 1 W to 100 kW steps *; Precision metal-oxide fi lm resistors for 1 M W steps and over 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 See inductance Substituters for specifi cations Max. Load 0.5 A, 200 V (dc + ac peak), 0.2 W/step, 2 W unit, which- ever applies fi rst. 3 A, 200 V (dc + ac peak), 0.5 W/step, 4.5 W/unit, whichever applies fi rst.

100 V (20 V for 10-100 µF)

<450 mW <600 mW <100 mW <140 mW typ. <100 mW Absolute Value 7 pF, typ. higher with Rear Output <1 µH * PRS with accuracy of 0.1% to 4% use precision metal fi lm resistors for 1 W steps and over

IET LABS, INC. in the Gen Rad Tradition www.ietlabs.com TEL: (516) 334-5959 • EMAIL: info@ietlabs.com Programmable Resistance - Capacitance - Inductance - RTD Decade Substituter PRS-PCS-PLS-PRTD Series Page 5 of 5 PRS Catalog Nov 2021 _ PRS - B - 5 - .1 - IEEE - -RM -RO-SC-OC-D STANDARD MODELS PRS-200 Programmable Resistance Substituter PRS-201 Programmable Precision Resistance Substituter PRS-200W Programmable Wide-Range Resistance Substituter PRS-201W Programmable Wide-Range Precision Resistance Substituter PRS-202 Programmable High-Precision Resistance Substituter PRS-202W Programmable Wide-Range, High-Precision, Resistance Substituter PCS-300 Programmable Capacitance Substituter PCS-301 Programmable Precision Capacitance Substituter PLS-400 Programmable Wide-Range Inductance Substituter PLS-400A Programmable Inductance Substituter PRTD Models Programmable RTD Simulator INTERFACE OPTIONS IEEE Option IEEE-488.2 Interface RS232 Option Serial interface Ethernet Option Ethernet IEEE 802.3

ORDERING INFORMATION

IEEE: IEEE-488.2 RS232: Serial 232/485 Ethernet: IEEE 802.3 PRS with IEEE-488 remote control, rear outputs, short circuit and open circuit operation, and digital display) CONFIGURATION In order to satisfy any unique requirements for programmable substituters, generate a part number from the table below. Impedance per Step for Lowest Decade

0.001 W to 10 MW

(in ohms) 100 pF to 100 µF 1 µH to 10 H (PRS-200 and PRS-201 limited to 0.01 W) No. of Decades 1 to 10 Tolerance Type of Substituter PRS: Resistance PCS: Capacitance PLS: Inductance PRTD: RTD Simulator Custom: Spec ify maximum required voltage, current and power. i.e. 3A/200V/250W No. of Units NIL: Sin gle 2: Dual Interface Options Rack Mounting RM: Rack mount option Custom V, I and P Rating X: 0.01% + 15 mW Q: 0.02% + 15 mW A: 0.05% + 15 mW B: 0.1% + 30 mW C: 0.5% + 30 m W F: 1% + 70 m W G: 2% + 70 m W H: 4% + 70 mW OTHER OPTIONS RM Option Rack mount for PRS-202/Dual Units not available for PRS-200 or 201 RO Option Rear output D Option Digital display of programmed value SC Option Short circuit option OC Option Open circuit option HP Custom high power specifi cations GPIB CABLES CBL-488-1 1 meter IEEE-488 cable Other Options RO: Rear out puts D: Dig i tal Dis play SC: Short Cir cuit OC: Open Cir cuit HP: High Power