CALL A.WIHARTA 081294124885 085778084789 087784022201 Automatic temperature compensation. Simple wiring with removable terminal modules. The mV 600 controllers have been engineered with the same outstanding features as the pH 500 meters. The fail safe alarm system protects these meters against the pitfalls of process control. User selectable timing capability safeguards against overdosing. These instruments have a differential input, extending electrode life by eliminating ground loop current through the reference. Users can choose between ON/ OFF and proportional control as well as selectable current and voltage output. For more flexibility and better resolution for chart recorders, choose any two points between 0 and 2000 mV to correspond to the analog output spans. RS232 capability makes two mV 600 models PC compatible. Wiring the controllers is simple with extractable terminal modules. A host of self-testing features and user friendly functions make mV 600 a great value. single setpoint, on/ off control, analog output, 115V. Range: 1 mV ORP, -9.9 to 120 degree celsius temperature. Resolution: 1 mV ORP, 0.1 degree celsius temperature. Temperature accuracy at 20 degree celsius: + / -2 mV ORP, + / -0.5 degree celsius temperature. Input impedance: 10^ 12 Ohm. ORP calibration : automatic, two point, at 0 and 350 or 1900 mV. Outputs: digital: RS232 bi-directional opt isolated; or analog, galvanically isolated: 0-1 mA, 0-20 mA and 4-20 mA, 0-5 VDC, 1-5 VDC and 0-10 VDC. Set point relay: 1 or 2 contact outputs SPDT 5A-250 VAC, 5A-30 VDC ( resistive load) , fuse protected ( 2A, 250V fast fuse) . Alarm relay: 1 contact output SPDT, 5A-250 VAC, 5A-30 VDC ( resistive load) , fuse protected ( 2A, 250V fast fuse) . Power supply: 115 VAC + / -10 percent or 230 VAC + / -10 percent; 50/ 60 Hz. Power consumption: 15 VA. Over current protection: 400 mA 250V fast fuse. Max oscillation frequency: 4 MHz. Environment: 0 to 50 degree celsius ( 32 to 122 degree fahrenheit) ; RH max 95 percent non-condensing.