·Some details are not shown. Please refer to specification sheets for all information.

M2AS1

Super-mini Signal Conditioners Mini-M Series

DC ALARM
(thumbwheel switch adjustment; single SPDT output)

Functions & Features
• Provides a SPDT 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
• Annunciator
• Various alarm applications

MODEL: M2AS1–[1][2][3][4]–[5][6]

ORDERING INFORMATION
• Code number: M2AS1-[1][2][3][4]-[5][6]
Specify a code from below for each of [1] through [6].
  (e.g. M2AS1-6111-M2/CE/Q)
• Specify the specification for option code /Q
  (e.g. /C01/S01)

[1] INPUT
Current
A: 4 – 20 mA DC (Input resistance 250 Ω)
Voltage
4: 0 – 10 V DC (Input resistance 1 MΩ min.)
5: 0 – 5 V DC (Input resistance 1 MΩ min.)
6: 1 – 5 V DC (Input resistance 1 MΩ min.)

[2] ALARM OUTPUT
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)

[3] ON DELAY TIME
1: 0.05 second
2: 0.1 second
3: 0.2 second
4: 0.5 second
5: 1 second
6: 2 seconds
7: 5 seconds
8: 10 seconds

[4] POWER ON DELAY TIME
1: 1 second
2: 2 seconds
3: 3 seconds
4: 4 seconds

[5] POWER INPUT
AC Power
M2: 100 – 240 V AC (Operational voltage range 85 – 264 V,
 47 – 66 Hz)
DC Power
R: 24 V DC
(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.)
P: 110 V DC
(Operational voltage range 85 – 150 V, ripple 10 %p-p max.)

[6] OPTIONS (multiple selections)
Standards & Approvals (must be specified)
/N: Without CE or UKCA
/CE: CE marking
/UK: CE, UKCA 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 M-System's web site.)
/C01: Silicone coating
/C02: Polyurethane coating
/C03: Rubber coating
TERMINAL SCREW MATERIAL
/S01: Stainless steel

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
(latching output when set to 00)
Front LED: Red LED turns on when the coil is energized.
Reset input: Latched output reset with the front control button or remotely via base socket terminals.

INPUT SPECIFICATIONS
DC Current:
Shunt resistor attached to the input terminals (0.5 W)
Reset Contact Input
ON resistance: ≤ 1 kΩ 
 Detecting level: ≤ 0.43 V
OFF resistance: ≥ 50 kΩ 
 Detecting level: ≥ 4 V

OUTPUT SPECIFICATIONS
Relay Contact:
120 V AC @5 A (cos ø = 1)
240 V AC @2.5 A (cos ø = 1)
30 V DC @5 A (resistive load)
Maximum switching voltage: 250 V AC or 120 V DC
Maximum switching power: 600 VA or 150 W
Minimum load: 5 V DC @10 mA
Mechanical life: 5 × 107 cycles

INSTALLATION
Power Consumption
AC:
 Approx. 3 VA at 100 V
 Approx. 4 VA at 200 V
 Approx. 5 VA at 264 V
DC: Approx. 3 W
Operating temperature: -5 to +55°C (23 to 131°F)
Operating humidity: 30 to 90 %RH (non-condensing)
Mounting: Surface or DIN rail
Installation Base (model: M2BS) is not adaptable.
Weight: 150 g (0.33 lb)

PERFORMANCE in percentage of span
Setpoint accuracy: ±0.5 %
Deadband setpoint accuracy: ±0.5 %
Power ON timer: Rating ±0.5 sec. or 20 %, whichever is greater.
Trip point repeatability: ±0.05 %
Temp. coefficient: ±0.015 %/°C (±0.008 %/°F)
Delay time (response time with 90 % setpoint for a step input 0 – 100 %)
Codes 1, 2
: Rating ±25 msec.
Codes 3 to 8: Rating ±20 %
Line voltage effect: ±0.1 % over voltage range
Insulation resistance: ≥ 100 MΩ with 500 V DC
Dielectric strength: 2000 V AC @1 minute  (input to output to power to ground)

STANDARDS & APPROVALS
EU conformity:
EMC Directive 
  EMI EN 61000-6-4
  EMS EN 61000-6-2
Low Voltage Directive 
  EN 61010-1
  Measurement Category II (output)
  Installation Category II (power)
  Pollution Degree 2
  Input or output to power: Reinforced insulation (300 V)
  Input to output: Basic insulation (300 V)
RoHS Directive
UK conformity (UKCA):
The UK legislations and designated standards are equivalent to the applicable EU directives.
(Refer to M-System’s website for more information about the legislations and designated standards.)

EXTERNAL VIEW

EXTERNAL DIMENSIONS unit: mm [inch]

TERMINAL ASSIGNMENTS unit: mm [inch]

SCHEMATIC CIRCUITRY & CONNECTION DIAGRAM

FUNCTIONS

MG Co., Ltd.