DC Instruments | AC Instruments | Resistance Standards | Current Shunts | Thermometry
Guildline Instruments has been manufacturing world-leading electrical metrology equipment and standards in Canada since 1957.
Many of Guildline’s products are the only commercially-available instruments capable of the stated accuracy.
Guildline’s ISO 17025-accredited calibration lab maintains the lowest uncertainty levels from 1µΩ to 10PΩ outside of the National Metrology Institutions.
DC Instruments
| 6530 Teraohmmeter  Click Here for datasheet |
Guildline Instruments 6530 TeraOhm Bridge-Meter Series is the latest innovation in High Resistance and Ultra-High Resistance Measurements. These Bridge-Meters incorporate the latest technology for high resistance measurements providing Metrologists with measurement results superior to that of commercially available Dual Source Bridges.
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| 6622A DCC Resistance Bridge  Click Here for datasheet |
Guildline Instruments 6622A series introduces new design concepts and the best in measurement uncertainties for Direct Current Comparator (DCC) Resistance Bridges manufactured by anyone today. Unique innovations in 6622A design and modularity means users no longer have to decide what Bridge satisfies current requirements as well as guess as to what Bridge would meet future requirements.
The 6622T adds temperature measurement functionality to the 6622A |
| 6622T DCC Thermometry Bridge  Click Here for datasheet |
Guildline Instruments model 6622T Thermometry Bridge expands upon the success of 6622A Series Resistance Bridges by utilizing Guildline’s electrical metrology expertise to offer outstandingly low thermal uncertainty and extreme stability. Unique innovations in hardware and software design have brought about this wide range thermometry bridge accommodating SPRT’s, PRT’s, various RTD’s including thermistors. The measurement range of the 6622T is from 0.1Ω to 100kΩ. |
| 6623 High Current Range Extender  Click Here for datasheet |
Guildline Instruments 6623 DCC Bridge Range Extender is a high current adapter, including an integral reversing switch, designed specifically for use with the 6675A or 9975 Direct Current Comparator bridges. The 6623 allows currents of up to 100 Amperes to pass through the resistor under test.
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| 6664C Scanner  Click Here for datasheet |
Guildline’s 6664C Low Thermal Quad Scanner is the first commercial scanner capable of operating at 1000V. This has greatly improved the measurement/calibration throughput of standards laboratories, since many high ohm measurements can now be automated.
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| 6625 Complete Systems  Click Here for datasheet |
Technel and Guildline work together to determine which equipment best fits your requirements and your budget. The 6625A is a modular, customer specified Resistance Measurement System. Typically, the System is composed of a 6622A Series Bridge, a 6634A Resistance Standard, 6664C Series Scanners and a 6623A Series Range Extender. Click here for more information
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AC Instruments
| 7620 Wide Band Amplifier  Click Here for datasheet |
Guildline Model 7620 is a very wide band transconductance amplifier. By connecting the output from a stable voltage source to the 7620, it is capable of producing outputs up to 20 amps over a specified frequency range of DC to 100 kHz, and a usable frequency range extending to 1 MHz.
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| 7410 AC Voltage Reference  Click Here for datasheet |
Guildline Model 7410 AC Voltage Reference is a digitally synthesized AC voltage source. It provides 16 Multiple waveform shapes at 16 different frequencies, and at 5 different voltage levels. Precision waveforms stored in non-volatile memory are generated using new technology developed at The National Institute of Standards and Technology (NIST).
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| 9910 Capacitance Bridge  Click Here for datasheet |
Guildline Instruments model 9910A High Voltage capacitance bridge is an instrument employing the AC Current Comparator principle. This makes the 9910A a unique and versatile instrument for a wide range of applications including cable testing, corona loss measurements, insulator and dielectric testing, inductance measurements, potential transformer error measurements, shunt reactor loss measurements and power transformer testing.
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Resistance Standards
Temperature Stabilized Click Here for datasheet |
Guildline models 6634A and 6636 are temperature stabilized standard resistors. These rack-mountable units provide the ultimate in stability using Guildline’s proprietary EMI-shielded thermal chamber. Front and Rear terminal units are available with your choice of connectors. Available in numerous standard ranges from 0.1Ω to 100 TΩ, custom ranges are also available. |
Air Standards Click Here for datasheet |
Guildline models 7334, 9334, 9336, and 9337 are standard resistors stabilized for use in air at room temperature. These unique standards provide the accuracy levels you require without the need for messy oil baths or long wait times for the instrument to reach steady state.
Available in numerous standard ranges from 1μΩ to 100 GΩ and custom ranges to 10 PΩ. Model 7334 is also acceptable for use an an AC standard. |
| 9340 Decade Boxes  Click Here for datasheet |
Guildline Instruments 9340 series of precision DC Resistance Standards are a complete family of easy to use resistance standards offering the best combination of highest accuracy and widest range commercially available.
There are 5 standard types available from 3 dial to 7 dial. The smallest increment offered is 10 mΩ full-scale total resistance available is just over 10 TΩ full-scale resistance values in the range are available in all the dial sizes. Accuracy of the 9340 Decade Resistance Boxes is better than ± 0.01% from mid range of 1Ω to 10MΩ steps. This means Guildline decade boxes are over 20 times more accurate than most competitors’ floor specifications. |
| 5030 Air Baths |
Guildline Instruments 5030 series of precision air baths provide uniform constant temperature stable to 0.03°C over 24 hrs. With the improved temperature coefficients of Guildline products, these high quality air baths are an excellent alternative to traditional oil baths for environmental control.These baths have a range of 15°C to 50°C and a cooling capacity to 6°C below ambient. The enclosure is also fully EMI shielded.Two circulation fans provide excellent circulation plus a measure of redundancy. |
Current Shunts
| 9230A Precision DC  Click Here for datasheet |
Guildline Instruments 9230A series of precision DC current shunts are true 4-terminal devices intended for the ultra-precise measurement of DC current. They are constructed from specially selected elements supported on an insulating base for mechanical stability. These units are covered with a perforated metal shell to allow proper cooling while providing physical protection of the elements.
Available Forced Convection option allows improved thermal dissipation and higher current measurements. Models are available for current measurement ranges from 5A up to 12,000 A with custom ranges available. The optional forced air attachment extends the measurement range of the unit by a factor of two. |
| 7350 AC Current Shunts  Click Here for datasheet |
Guildline Instruments 7350 series of four-terminal AC Current Shunts are high-accuracy, high stability non-inductive shunts in a ruggedized and shielded enclosure. The 7350 series shunts are constructed with very small values of reactance and are ideal for use over a wide frequency range from DC to 100 kHz with uncertainty down to 35 ppm, low temperature coefficients and excellent stability. To suit a wide range of customers and applications, the 7350 Series shunts provide power dissipation capability of up to 10 Watts and a maximum current capability up to 25A. For best performance, the model 73401 Forced Convection Unit is available for forced aircooling. |
| 9211A Multiple Value Resistor/Shunt  Click Here for datasheet
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Guildline Instruments model 9211A is a four-terminal bench-top or rack-mount instrument designed for convenient measurement of current in nine ranges from 10 mA to 300 A.
All connections and adjustments are accessible on the front panel. Range selection is made by means of two brass plugs inserted into the ports on the panel. |
