ES-5064 Rev.15

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 our web site.)
/C01: Silicone coating
/C02: Polyurethane coating
/C03: Rubber coating
/C04: Polyolefin 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 our 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