DFM-630
1 Models
Program Output
15
Relays
RATING
2 SPDT (Form C) internal; rated 3 A @ 30 VDC and 125/250
VAC resistive load; 1/14 HP (
≈
50 W) @ 125/250 VAC for
inductive loads
NOISE
SUPPRESSION
Noise suppression is recommended for each relay contact
switching inductive loads; see page 18 for details.
RELAY
ASSIGNMENT
Relays may be assigned to rate, total, or grand total.
DEADBAND
0-100% of span, user programmable
HIGH OR LOW
ALARM
User may program any alarm for high or low trip point.
Unused alarm LEDs and relays may be disabled (turn off).
RELAY
OPERATION
Automatic (non-latching)
Latching (requires manual acknowledge)
Sampling (based on time)
Alternation control (2 to 8 relays)
Off (disable unused relays and enable Interlock feature)
Manual on/off control mode
RELAY RESET
User selectable via front panel buttons, digital inputs
1. Automatic reset only (non-latching), when the input
passes the reset point or total is reset to zero.
2. Aut manual reset at any time (non-latching)
3. Manual reset only, at any time (latching)
4. Manual reset only after alarm condition has cleared
(Latching with clear)
Note: Front panel button may be assigned to acknowledge
relays programmed for manual reset.
TIME DELAY
0 to 999.9 seconds, on & off relay time delays
Programmable and independent for each relay.
FAIL-SAFE
OPERATION
Programmable and independent for each relay.
Note: Relay coil is energized in non-alarm condition.
In case of power failure, relay will go to alarm state.
AUTO
INITIALIZATION
When power is applied to the meter, relays will reflect the
state of the input to the meter.
