ETR-4220 and ETR-4230 1/4 Din Microprocessor Based Smarter Logic^® Temperature Controls
96mm x 96mm · Smarter Logic for Superior Control · Only 2" Panel Depth Required · Universal Sensor Input · Universal Power Input · Automatic Tuning of PID Parameters · Sealed Mylar Front Panel · 3 Independent Outputs on ETR-4220 · 4 Independent Outputs on ETR-4230 · °F or °C Display · Configurable Security · All Control Parameters Front Panel Adjustable · Auto/Manual Operation · 3 Year Warranty
Size is the important feature of 1/4 DIN ETR-4220 and ETR-4230 Controls. Size in the large dual displays. The Process Display is 5/8". And the lack of size all 1/4 DIN ETR controls require only a 2" panel depth. Smarter Logic provides perfect control. A proportional cooling output for heat/cool processes is included on the ETR-4230. Many applications can be controlled with the ETR-4220 and ETR-4230 because of the Universal Input feature. Economical versions are the ETR-4120 and ETR-4130. 1/4 DIN OGDEN controls are just the right size, at the right price.

Ordering Number	Description	User Price in US Dollars
ETR-4220-31211	Universal input, relay output	$360.00
ETR-4220-31221	Universal input, relay output, with alarms	$377.00
ETR-4220-31311	Universal input, output for SSR	$360.00
ETR-4220-31321	Universal input, output for SSR, with alarms	$377.00
ETR-4220-31511	Universal input, 4-20mA output	$385.00
ETR-4220-31521	Universal input, 4-20mA output, with alarms	$402.00
ETR-4230-312221	Universal input, relay heat & cool output, with alarms	$407.00
ETR-4230-312211	Universal input, relay heat & cool output	$390.00