News From G Instruments G Instruments is a proud sponsor of the fifth ISA Water & Wastewater and Automatic Controls Symposium, 3-5 August 2010, Orlando, FL USA Universal input power supplies GPS122, GPS123 and GPS125 power supplies will have a version with a dual isolated output. The second output will provide isolated 24 VDC / 42 mA intended mostly to power isolated analog outputs of our flow computers. Coming soon .......... Flow Computers for Liquids GFC100/200 series Flow Computers All GFC100/200 series flow computers / totalizers will have a panel mount version in DIN 72x72 mm with IP65 (NEMA-4) protection. Coming soon .......... GFC301 wall mount IP65 (NEMA-4) dual channel flow computer for liquids, gases and steam is released. Batch functionality has been added to each channel. The analog output (when 4-20 mA loop power) works from 7.0 V allowing up to 250 ohm load on a car / truck battery. All options for the analog output have a lot higher accuracy and resolution. All GFC100/200 series flow computers now have an ''E'' version. All the same features but in one inch wider enclosure - more space for the wires. A new GFC110A-B flow computer has been released. Accepts a biderectional flow sensor and displays flow rate A, flow rate B and total A-B. GFC116 low power flow computer / totalizer has been released. It has a simplified menu, separate volume units for rate and total and no batch, limit, datalog or alarm options. KFACTOR unit is not fixed but in the total units programmed. SETP is in pulses per total unit. GFC106 micro power flow computer / totalizer has been released. It has a simplified menu, separate volume units for rate and total and no batch, limit, datalog or alarm options. KFACTOR unit is not fixed but in the total units programmed. SETP is in pulses per total unit. Conductivity Transmitters G Instruments designs and manufactures conductivity transmitters with very high accuracy and reliability. GCT20K: =4-20 mA output with reverse polarity and surge protection, very low consumption, very small size =resolution better than 2 uS/cm =built-in the head of the probe. So it is just the probe and a thin cable coming out of it. =tripple isolation - the electrodes are isolated from the 4-20 mA output and the power. The power is also isolated from the 4-20 mA output. =potential free electrodes, so the measurement does not change or polarize the liquid. =field programmable from 0 to 20 000 uS/cm. Both the conductivity for 4 mA and 20 mA are programmable so the output can be moved up/down, scaled or inversed. =field programmable temperature coefficient from 0.00 to 10.00 % / oC. =operating temperature, liquid: -20 to +120 oC =operating temperature, electronics: -30 to +80 oC =very high chemical and wear resistance =platinum RTD used for temperature compensation ensuring very accurate temperature measurement and compensation =IP67 (NEMA-6) protection on the electronics =Kynar PVDF body, graphite electrodes, mounts in a 1'' tee GCT20K-MB: =same as GCT20K except it has a fully programmable and fully compliant, isolated RS485 MODBUS RTU instead of 4-20 mA analog output =1/8 load, so up to 247 devices can be connected on the same 2-wire network =resolution 1 uS/cm =temperature, non-compensated conductivity, compensated conductivity, temperature coefficient and many other parameters can be read many times a second. GCT20K-MB can be the perfect device for solutions with non-linear and non-standard temperature compensation. The master can read the temperature and the non-compensated conductivity and do its own compensation with polynomials, splines, or complex formulas. The master can also reprogram the temperature comefficient of GFC20K-MB continuously depending on the temperature, thus making a better compensation. Coming soon ..... GMAG100 is evolving The new version of GMAG100 is released. Even higher accuracy and turn down along with very much improved performance at the low end. New universal input power supplies New 10W and 20W universal input power supplies GPS123, released: 10W, universal input 90 - 264 VAC, highly isolated and protected output 24VDC/0.42A with low ripple. Board assembly or mounted in a weather proof enclosure ... GPS125, released: 20W, universal input 90 - 264 VAC, highly isolated and protected output 24VDC/0.84A with low ripple. Board assembly or mounted in a weather proof enclosure ... Analog outputs All 4-20 mA analog outputs of our devices will work with voltage down to 6VDC. Same high accuracy, on even higher loads (up to 1600 ohm). Great when powering from a car battery .... Software New version of ''GRD Master'' software coming soon to cover all new versions of GRD100 series remote displays and add more functions. New ''GTT Master'' and ''GMAG Master'' software will greatly help for quick field programming, monitoring and control of our field programmable temperature transmitters and magmeters ....