Model SDM 693 Flow Meter / Controller (FMC-002)
The SDM 693 is a high performance, industrial-grade digital flow meter. It accepts all the standard process signals: pulse, open collector, switch, TTL or square wave displaying them in engineering units on a six digit display. The display also includes an extra zero which may be used to handle numbers up to 999,999.
Single Button Scaling allows calibration to be performed via a single front panel push-button. There are no complicated menu trees to navigate or button-pushing sequences to memorize. An internal 12 or 24 VDC power supply is available to power the flow sensor. The NEMA 4 rated front panel makes the 693 ideal for location in wet and dry areas. Options for the 693 include 2 and 4 relays: 4-20 MA output, or 2 and 4 relays with 4-20 MA output.
2 or 4 Relays
Relays #1 and #2 are assigned to total and trip when total exceeds preset values and reset when total is reset to zero. #2 relay is user programmable to reset total to zero when the preset value is reached.
Relays #3 and #4 are assigned to rate and may be programmed for high or low alarms with 0-100% deadband. Relay configurations consist of two for total only, two for rate only, or two for total and two for rate (see ordering information).