



Model SM series are potentiometer setting meter relays with dual Hi & Lo settings. The setters are used multi-turns resistive potentiometers as preset buffers which settings are able to be read directly in display for switch selection. The input functions of the units are of wide varieties & ranges, including many parameters of industry process and power system as DCV, ACV, DCA, ACA, DC rate, and temperature.
The SMV AC Voltage Meter Relay provides a four digit display with up to 9999 counts with find resolution & the displays are of high rate-super brightness LED, 0.56" size.
Dual control outputs compliant Hi & Lo setting of SPDT relay contacts of an on-off control type. The outputs also comply with delaying function adjusted 0-30 second standards & longer requirements for 0-60 or 0-120 seconds with specified request. Dead band is also an option available as selective or alternative to time delayer.
This model features a specially designed open-door type in the meter; it keeps convenience in presetting & protects settings to avoid undersired miss changes in field application.
The SMV AC Voltage Meter Relay provides a four digit display with up to 9999 counts with find resolution & the displays are of high rate-super brightness LED, 0.56" size.
Dual control outputs compliant Hi & Lo setting of SPDT relay contacts of an on-off control type. The outputs also comply with delaying function adjusted 0-30 second standards & longer requirements for 0-60 or 0-120 seconds with specified request. Dead band is also an option available as selective or alternative to time delayer.
This model features a specially designed open-door type in the meter; it keeps convenience in presetting & protects settings to avoid undersired miss changes in field application.
- Multi-turn Potentiometer setting
- Dual Hi & Lo setting
- Wide input parameters & ranges
- Output with adjustable time delayer
- 4 digits up to 9999 counts
- Accuracy :
- 0.25% fs± 2 counts
- Stability :
- Temperature < 100 pm per ℃, 5-50℃
- Long term stability < 0.15% draft per year
- Input burden :
- < 0.5 VA for AC
- Display :
- Display : 4 digits maximum 9999 counts, 0.56" super rate LED
- Setting :
- Hi & Lo set standard, Hi-Hi set optional
- Hi comparator setting < meter input output relay energy
- Lo comparator setting > meter input output relay energy
- Multi-turns potentiometer for each setting
- Switchable display range for S1, S2 & M (input measured)
- Response time :
- Analog conversion < 1 sec of average integration typically
- Analog to Digital conversion 2 sample rate per second
- Input over capability:
- Voltage maximum for 100V rms or 2 x full input which ever great current input
- Frequency :
- 40-400 Hz AC related meters
- Control output :
- On-off control type
- Relay contact output of spdt type for each setting
- Capacity AC250V / 2A, AC125V / 3A, DC24V / 3A
- Time delayer adjustable 0-30 sec. typically, 0-60, 0-120 sec. for option
- Dead band for option alternatively & availably to time delayer
- Output indication : LED lamp energy in front panel
- Comm. mode voltage : 2KV rms 50 / 60 Hz 1 minute
- Impulse voltage : 4KV 1.2 * 50 us common mode test
- Operating condition : 0 to 50℃, 20-90% RH non-condensed
- Storage condition : -10 to 70℃
- Power supply :
- Standard AC 110 / 220V 50 / 60HZ ±15%, <5VA
- Option DC 12V / 24V / 48V / 125V, < 6 Watts