Functions & Features • Provides a DPDT relay output at a preset DC input level • Thumbwheel switch setpoint adjustments • Adjustable deadband • Latching or non-latching output • Relays energized or de-energized at tripped condition Typical Applications • Various alarm applications Super-mini Signal Conditioners Mini-M SeriesDC ALARM (thumbwheel switch adjustment; DPDT output)MODEL: M2AS-[1][2][3][4][5]-[6][7]ORDERING INFORMATION • Code number: M2AS-[1][2][3][4][5]-[6][7] Specify a code from below for each of [1] through [7]. • Specify the specification for option code /Q (e.g. /C01/S01) Note: Must be used with its socket. NOT installable to a multi-unit installation base. (e.g. model: M2BS-16) 1: Hi (coil energized at alarm) 2: Hi (coil de-energized at alarm) 3: Lo (coil energized at alarm) 4: Lo (coil de-energized at alarm) N: Standard type S: Enclosed type M2: 100 - 240 V AC (Operational voltage range 85 - 264 V, 47 - 66 Hz) (Operational voltage range 24 V ±10 %, ripple 10 %p-p max.) R2: 11 - 27 V DC (Operational voltage range 11 - 27 V, ripple 10 %p-p max.) (Select '/N' for 'Standards & Approvals' code.) (Operational voltage range 85 - 150 V, ripple 10 %p-p max.) Standards & Approvals (must be specified) /N: Without CE /CE: CE marking Other Options blank: none /Q: Option other than the above (specify the specification) SPECIFICATIONS OF OPTION: Q (multiple selections) COATING (For the detail, refer to our web site.) /C01: Silicone coating /C02: Polyurethane coating /C03: Rubber coating /C04: Polyolefin coating TERMINAL SCREW MATERIAL /S01: Stainless steel

MODEL: M2AS GENERAL SPECIFICATIONS Construction: Plug-in Connection: M3 screw terminals (torque 0.8 N·m) Screw terminal: Chromated steel (standard) or stainless steel Housing material: Flame-resistant resin (black) Isolation: Input to output to power Overrange input: -14 to +113.5 % When the relay’s untripped point relative to the preset alarm setpoint and deadband is out of this range, the relay remains latched. Setpoint adjustments: Thumbwheel switches (front); 0 – 99 % independently; 1 % increments Deadband (hysteresis) : Thumbwheel switches (front); 1 – 99 % independently; 1 % increments...

MODEL: M2AS EXTERNAL VIEW Output Setpoint Adj. Deadband Adj. Output Monitor LED Reset Control EXTERNAL DIMENSIONS unit: mm [inch] 6 [.23] DIN RAIL 35mm wide • When mounting, no extra space is needed between units. TERMINAL ASSIGNMENTS unit: mm [inch] INPUT RESISTOR (model: REM2) Input shunt resistor attached for current input.

MODEL: M2AS SCHEMATIC CIRCUITRY & CONNECTION DIAGRAM ■ Relay Protection • AC Powered THUMBWHEEL SWITCHES Inductive Load (Coil) RESET CONTROL • DC Powered Inductive Load (Coil) Diode, Varistor or CR Circuit *Input shunt resistor attached for current input. FUNCTIONS ■ HIGH ALARM: When the signal input exceeds the preset setpoint, the relay provides a tripped condition. • Hi Alarm ■ POWER ON DELAY TIME: The relay does not provide a tripped condition for a duration of the preset Power ON Delay Time (TDP) after the power supply is turned on, even when the signal input is in an alarm range. Input...

MODEL: M2AS Specifications are subject to change without notice.