Analog to Frequency Signal Conditioner converts 4 to 20 mA to Frequency

Sept. 2, 2010
Calex Mfg. Co., Inc. announces the availability of the Calex Model 8505. The 8505 analog to frequency converter offers a cost effective solution for a single or multiple channel PLC I/O systems. Ideally suited to convert a 4 to 20 mA sensor output into a PLC frequency input.The 8505 is designed to operate into the common 24 volt, 7 mA PLC discrete counter input. It provides 1 kHz to 5 kHz output frequency for a 4 µA per Hertz resolution. The output is linear to 0.01% with a very high accuracy of better than 0.1%. The output is an isolated floating optocoupler which provides DC isolation from the input and DC power. The 8505 ishoused in a plastic case with a built in DIN Rail mounting foot. The case dimensions are 3.78”L x 1.06”W x 1.65” H. All connections are made to easily accessible screw terminals. The 8505 Series is backed by Calex’s five year warranty and is UL 508 and UL 1604 compliant. Pricing for the 8505 is $83.30/ea (100).