Strain Gage to PLC Converter includes 10 V excitation source.
Press Release Summary:
DIN-mount Model 8555 accepts 0-50 mV differential or single-ended signal and converts it to 0-5 kHz pulse compatible with PLC high-speed inputs. Output is an isolated floating optocoupler transistor, which provides dc isolation from input and dc power. It is linear to 0.01% with accuracy of better than 0.1%. Powered by 24 Vdc with max current draw of 45 mA, Model 8555 provides control system for variety of weighing applications when combined with Micro PLC.
Original Press Release:
Low Cost Strain Gage to PLC Converter
Calex Mfg. Co., Inc. announces the model 8555 DIN mount Strain Gage to Frequency converter which is a cost effective solution for taking strain gage or load cell signals and converting them to a pulse for input into the high speed counter of a PLC. The 8555 accepts a 0 to 50mV differential or single ended signal and converts it to a 0 to 5kHz pulse compatible will virtually all PLC manufacturer's high speed inputs. The 8555 includes a 10 Volt excitation source making it a complete turn key strain gage/load cell conditioner. The list price for the 8555 is only $125 and when combined with a Micro PLC provides a very cost effective control system for a variety of weighing applications.
For input requirements other than 0 to 50mV, Calex has produced a number of variations all the way down to 0 to 2mV full scale for customer specific applications. The output of the 8555 is an isolated floating optocoupler transistor which provides DC isolation from the input and DC power. The output frequency of 0 to 5kHz can also be adjusted by the factory for customer specific applications. The output is linear to 0.01 % with a very high accuracy of better than 0.1 %. The built-in 10 Volt excitation source provides sufficient current to drive a 350 Ohm bridge. The 8555 is powered by 24VDC with a maximum current draw of 45mA.
The dimensions of the 8555 are 1.65"Hx 1.06"Wx3.78"L. The unit is recognized to UL 508 and UL 1604. Units are typically available from stock to three weeks. For more information, contact CALEX Mfg. Co., Inc., 2401 Stanwell Dr., Concord, CA, 94520, www.calex.com, sales@calex.com, ph:800-542-3355 or 925-687-4411, fax: 925-687-3333.
