Guildline Instruments High Resistance Measurement Bridge/Meter 6540/6530


Electrical Metrology

Resistance Standards

Range : 1 µ to 10 PΩ 
Accuracy: As low as 2 PPM
Stability: < 1 PPM per year 

Capacitance Standards

Range : 1 pF to 10,000 µF   
Accuracy: As Good as 5 PPM 
Stability: < 1 PPM per year

Inductance Standards

Range : 1 µH to 10H   
Accuracy: As Good as 0.1% !
Stability: < 0.01% per year

Decade Resistance Boxes

Range : 1 µ to 11 TΩ 
Accuracy: As low as 20 PPM
Stability: < 5 PPM per year 

Decade Capacitance Boxes

Range : 1 pF to 10,000 µF   
Accuracy: As Good as 0.05% 
Stability: < 0.02% per year

Decade Inductance Boxes

Range : 1 µH to 11H   
Accuracy: As Good as 0.8% !
Stability: As low as 0.5% per year

9340-4T Precision 4-Wire Ultra Low Value RTD Simulators and DC Resistance Standards

  • Resistance Ranges include Decades from 1 µΩ to 10 kΩ
  • Excellent for milli-Ohm and micro-Ohm Applications and Instruments
  • True 4-Wire Terminal Design
  • Accuracy Better than  ± 0.01 %

Direct Current Comparator Resistance Bridges Series 6622A

  • Widest Available Range from 1 mΩ ~1 GΩ
  • Best Accuracy: ± 0.015 ppm of Reading
  • Modular Design, Expandable Capabilities, Complete Investment Protection
  • Wide Range of Ratios: 0.1:1 ~ 100:1

High Resistance Measurement
Bridge/Meter 6540/6530

  • Bridge and Direct Measurement Modes of Operation
  • Resistance Range 100 kΩ to 20 PΩ
  • “True Ratio” Provides Multi‐Ratios from 1:1 up to 100:1
  • Test Voltages 1 to 1000 V

Precision DC Current Shunts Model 9230A

  • Series Ranges from 10 A to 10,000 A
  • 3 Point Current Calibration Provided
  • < 10 ppm Long Term Stability
  • Extremely Low Self-Heating Effects

Transconductance Amplifier Model 7810

  • 100 A Model!
  • Calibrated Frequency Range (DC to 100 kHz)!
  • Uncalibrated 100 kHz to 2 MHz!
  • High 9 V Voltage Compliance!
  • Unique Touch Screen Interface and Embedded Windows Computer!

7520 Precision Automated DC Voltage Divider

  • Sub ppm ratio Uncertainties
  • Automated Self-Alignment (i.e. Self Calibration)
  • No External Standards required for Self-Alignment
  • Wider voltages range from 1:1 to 1000:1 & Reverse
  • Input voltage range from 1 to 1100 volts 

1422 SERIES VARIABLE AIR CAPACITORS

  • Range as low as 0.002 pF and as high as 1150 pF (Depending on Model)
  • Stability: better than 0.02% full scale per year
  • Settable to 40 ppm
  • Low temperature coefficient, low losses

HARS SERIES RESISTANCE DECADE BOX

  • Resistance from 1 mΩ to 111 MΩ
  • Available in double-power version: HARS-X2
  • Wide choice: single through 11 decade units
  • High accuracy – 0.01% (100 ppm) or 0.1% depending on model

HRRS-5 KV & 10 KV SERIES -
HIGH RESISTANCE DECADE BOX

  • Choose from units with a max. resistance of 1 GΩ, 10 GΩ, 10 GΩ, 1TΩ or 11 TΩ
  • Units use the most stable and accurate resistors and custom high voltage switches
  • Maximum Voltages of 5000 V or 10,000 V. For 2000 V, consider the standard HRRS Series
  • Used for calibration of Meggers and sourcing out precision high resistance.

HACS-Z SERIES HIGH ACCURACY DECADE CAPACITANCE BOX

  • Range from 1 pF to 11,111 µF
  • High accuracy of 0.05% + 0.5 pF
  • Units available with as few as 3 and as many as 11 decades
  • Excellent Stability 100 ppm per year
  • 3-Terminal shielded construction

PRS-330/370 World's Most Precise Programmable Resistance Box & RTD Simulator

  • Resistance range: 0.1 Ω to 20 MΩ with a Resolution of 1 μΩ  or 6 digits
  • Lab grade accuracy (70 ppm + 1 mΩ): 1.5 times better than conventual manual decade resistors
  • Large color touchscreen, soft keys and intuitive interface promotes little to no training

1865+ DIGITAL MEGOHMMETER I/R TESTER

  • Measurements from 1 kΩ to 100 TΩ, with auto ranging
  • 0.5% measurement accuracy
  • Programmable test voltage from 1 to 1000 Vdc
  • Improved High-visibility blue LCD graphical display for menu programming and test results
  • Direct reading of measured resistance or current

IET/QUADTECH 1910/1920 1 MHZ LCR METER

  • 20 Hz to 1 MHz frequency range 27,000 possible frequency 
  • 0.1% basic measurement accuracy
  • Measures 15 impedance parameters, dc resistance, voltage and current
  • IEEE-488.2,RS-232, handler, and serial printer interfaces all standard
  • Wide measurement range with 5 digit measurement resolution
  • Four-terminal Kelvin connections to maintain measurement integrity

GENRAD 1693 PRECISION LCR METER

  • The World’s standard for ac resistance, low frequency inductance and Capacitance measurement in a metrology environment
  • 0.02% measurement accuracy and +/- 0.0001 Df
  • Programmable frequency 12 Hz – 200 kHz
  • Extremely reliable can last up to 30+ years

IET 7660 PRECISION LCR METER

  • Ultra Precision – 0.05% basic measurement accuracy
  • Programmable frequencies from 10 Hz to 2 MHz
  • Standard USB-Type B, RS-232, GPIB and LAN Interfaces
  • Measures 14 impedance parameters (2 simultaneously)

Humidity Metrology

Reference Chilled Mirror Hygrometer Model 373

  • Wide measuring range -95 to +95 ̊C frost/dew point
  • Dual mirror temperature sensors
  • Frost/Dew Point Accuracy: ≤ ± 0.1 °C 
  • High pressures up to 20000 kPa
  • Touch screen full color LCD user interface

973-SF6 Analyzer

  • Best accuracy: Frost/Dew Point: ± 0.5°C , Volume SF6:  ± 0.5%, SO2: 2% of range
  • The 973-SF6 chilled mirror technology relies on the drift-free physical principles of condensation
  • Gas containment system with automatic pump back with No gas loss
  • User Verifiable Calibration
  • Lower Cost of Owner ship

Model 2500 Benchtop/Mobile Humidity Generator

  • 0.5% of Reading RH Uncertainty
  • Relative Humidity Range: 10 to 95%
  • Temperature Range: -10 to 70°C
  • Automated Control of User Set-points
  •  2500 ControlLog Automation Software

Model 2900 Automated Humidity Generation System

  • 0.5% of Reading RH Uncertainty
  • Relative Humidity Range: 10 to 98%
  • Temperature Range: -10 to 72°C
  • Generate: RH, DP, FP, PPM, Multipoint Profiles
  • Multi-point Touch LCD
  • High Flow Capability of 50 L/min

Model 3920 Automated Low Humidity Generation System

  • Based on NIST Proven “Two-Pressure” Principle
  • Relative Humidity Range: 0.00003% to ~50%
  • Frost/Dew Point Temperature Range: -95 to 10°C
  • Generate: RH, DP, FP, PPM, Multipoint Profiles
  • 10.1 “Multi-point Touch LCD
  • High Flow Capability of 10 L/min

Temperature Metrology

PT12 Precision Thermometer

  • Twelve channel temperature measurement
  • High precision, stability and repeatability
  • Internal temperature compensated high stability reference resistors
  • PC software for easy GUI or command line system control and data acquisition
  • Simple to setup, configure and use
  • Touchscreen user interface with graphing
  • Supports THERMOtelligent 100 Ω and 25.5 Ω Smart 4-wire PRTs

AM8060 Precision Thermometer

  • Accuracy up to ±0.008°C
  • Resolution of 0.001°C
  • Temperature  Range -260°C to 850°C
  • Dual Channels
  • Data storage into USB flash drive as easy as plug-and-record

AM1860/AM1850 Metal-Sheath SPRTs

  • Competitive pricing
  • Inconel™ sheath provides durability
  • AM1860 Temperature Range: -200°C to 670°C
  • AM1850 Temperature Range: -200°C to 500°C
  • W(Ga) ≥ 1.11807
  • W(Hg) ≤ 0.844235
  • Fully meets the ITS-90 criteria for standard thermometers

AM1762/1760 Secondary SPRTs

  • Reliable SPRT for daily use
  • Rtpw Drift: <4mK after 100hrs at 661°C
  • Short-term stability: <0.002°C at 0.01°C
  • Temperature Range: -200°C to 670°C
  • Inconel™ sheath to withstand harsh environments
  • Fully meets the ITS-90 criteria for reference thermometers

OCEANOGRAPHY

Autosal Salinometer 8400B

  • Word’s only trusted and most accurate standard instrument for measuring salinity. 
  • Accuracy <0.002 Salinity
  • Range 2 to 42 in Salinity 
  • Improved temperature stability 
  • No temperature compensation required 
  • Small samples & rapid measurements 

Portasal Salinometer 8410A

  • Accuracy < 0.003 Salinity
  • Completely Portable with Laboratory Accuracy
  • Direct Calculation of Salinity
  • Rugged, Compact Enclosure
  • Small 100 ml Samples and Rapid Measurements
  • Easy to Set Up and Operate
  • Expanded Temperature Range of 15 °C to 38 °C
  • Microprocessor Controlled with RS-232 and IEEE