Saelig Offers DMM, Power Supply, Wireless Tester
October 21, 2013. Saelig last week announced it is offering a 6 ½-digit DMM, 400- and 800-W programmable power supplies, and a wireless transmission tester.
The GDM-8261A high-precision 6 ½ digit digital multimeter with offers dual measurement displays, 11 measurement functions, and 10 highly accurate math functions (35 ppm DC voltage accuracy) to accommodate the most frequently performed parameter measurements in many application fields. The GDM-8261A offers current measurement ranges as low as 100 µA (100-pA resolution) or as high as 10 A, and if offers voltage measurements with a resolution of 100 nV. In addition, 10 different math functions can be selected in order to display dB, dBm, or other complex parameters. The GDM-8261A performs two measurements simultaneously and shows both results on two displays.
The GDM-8261A can be fitted with an optional scanner card for measuring 16 voltage channels and two current channels at 2,400 readings/s to facilitate the measurement of multiple test points on one or many devices. With this multi-point measurement capability, the GDM-8261A can be used as a semiautomatic ATE system to increase the throughput of manufacturing test or as a datalogger to perform long-term monitoring or characterization of a device under test. The DMM-Viewer PC software package is available to support the multi-channel measurements of the scanner card. An NI LabVIEW driver is also available to help users create virtual instruments for automated test set-ups. Both USB and RS-232 interfaces are standard, with GPIB or LAN user-installable options also available. Price starts at $950.00.
Power Supply
The PSB-2000 series flexible power supplies offer flexible high-voltage, low-current/low-voltage, high-current output characteristics. V/I combinations for a range of applications at up to 800 W are covered by six models, including one power booster. The PSB-2000 Series offers an output voltage of 0 to 80 V and 0 to 800 V, with an output power of 400 W or 800 W. Series/parallel connections can be applied to PSB-2000 supplies for higher power outputs.
The PSB-2000 Series provides three sets of preset function keys to memorize regularly used settings of voltage, current, and power for rapid recall. A serial-controlled sequence function, using an RS-232C, USB, or optional GPIB interface, can produce output power defined by a sequence of set voltage and current steps provided by an attached PC. This capability is valuable for creating standard test procedures for verifying devices under test by quickly changing operating conditions.
The PSB-2000 Series feature overvoltage and overcurrent protection. When charging batteries, the Hi-Ohm mode of the PSB-2000 series will prevent reverse current from damaging the power supply. Analog control and analog monitor interfaces are provided on the rear panel to control PSB-2000 output via an external voltage or to externally monitor the voltage and current output status. The PSB-2000's panel can be rotated 90° for a choice of vertical or horizontal mounting to accommodate optimum space utilization.
The units are made by Taiwan-based GW Instek; prices start at $1580.00.
Wireless Transmission Tester
The RF-id SOLO quickly and accurately determines the frequency of virtually any wireless transmitter, providing a simple and accurate way to read the frequencies of wireless audio and industrial communications equipment.
The compact handheld RF-id SOLO instantly reads both analog and digital wireless single-carrier transmission frequencies from 50 MHz to 2.5 GHz. Determining the frequency of a transmitter is as simple as holding it near the RF-id SOLO for a reading that is accurate to within 10 Hz.
Measuring 1.9 x 3.3 x 0.75 in., the lithium-ion rechargeable battery-powered unit can also be powered with external 5-VDC power (supply included). Three membrane buttons (Light/Menu/Hold) provide access to all functions.
The RF-id SOLO is supplied with two antennas. The near-field antenna is useful for measurements for transmitters within inches of the source, and a 3-in. antenna can be used for further-field measurements. A signal strength bar-graph meter on the LCD screen is useful for estimating the relative strength of a transmitter.
Since it works with both digital and analog single-carrier transmissions in the 50-MHz to 2.5-GHz range, the RF-id SOLO can be used with transmitters such as commercial RFID tags, industrial wireless systems, 2-way radios, listening devices, intercoms, and cell phones, provided that the signals are not spread-spectrum or frequency-hopping. Price starts at $225.