ES-5488 Rev.9
M8SED
Dual Output Super-mini Signal Conditioners Pico-M Series
DC ALARM
(thumbwheel switch adjustment)
Functions & Features
• Providing relay outputs at preset DC input levels
• Dual (Hi/Lo) trip
• Thumbwheel switch setpoint adjustments
• Space-saving, easy-to-maintain, multi-channel installation base
MODEL: M8SED-[1][2][3]-R[4]
ORDERING INFORMATION
• Code number: M8SED-[1][2][3]-R[4]
Specify a code from below for each of [1] through [4].
(e.g. M8SED-A12-R/Q)
• Specify the specification for option code /Q
(e.g. /C01 )
[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] OUTPUT 1
1
: Hi trip (ON = tripped; OFF = untripped or no power)
2
: Hi trip (OFF = tripped; ON = untripped or no power)
[3] OUTPUT2
1
: Lo trip (ON = tripped; OFF = untripped or no power)
2
: Lo trip (OFF = tripped; ON = untripped or no power)
POWER INPUT
DC Power
R
: 24 V DC
(Operational voltage range 24 V ±10 %, ripple 10 %p-p max.)
[4] OPTIONS
blank
: none
/Q
: With options (specify the specification)
SPECIFICATIONS OF OPTION: Q
COATING (For the detail, refer to our web site.)
/C01
: Silicone coating
/C02
: Polyurethane coating
/C03
: Rubber coating
RELATED PRODUCTS
• Installation Base or Single Mount Base Socket (model: M8BSx)
This unit must be mounted on dedicated base or socket except Model M8BS2 base.
GENERAL SPECIFICATIONS
Construction
: Plug-in
Mounting screw
: M3 screw (torque 0.3 N·m)
Housing material
: Flame-resistant resin (black)
Power supply
: Via the Installation Base terminals
(model: M8BSx)
Isolation
: Input to output 1 to output 2 to power
Setpoint adjustments
: Thumbwheel switches (front);
0 – 99 % independently; 1 % increments;
(factory setting: 50 %)
Hysteresis (deadband)
: Approx. 1 %
Front LEDs
: Red LED turns on when the coil for Hi output is energized.
Green LED turns on when the coil for Lo output is energized.
Power ON timer
: Relays de-energized for approx. 2 seconds after power is turned on.
INPUT SPECIFICATIONS
■
DC Current
: Input resistor incorporated
OUTPUT SPECIFICATIONS
•
Relay Contact
: 125 V AC @0.2 A (cos ø = 1) *
30 V DC @0.5 A (resistive load) *
Maximum switching voltage
: 125 V AC or 60 V DC
Maximum switching power
: 25 VA or 15 W
Minimum load
: 100 mV DC @100 μA
Mechanical life
: 5 × 10
6
cycles
* When used with a multi-channel installation base (e.g. M8BS-16), the ratings derated as following.
Terminal block type: 125 V AC @0.2 A, 30 V DC @0.25 A
Cable connector type: 24 V AC @50 mA, 24 V DC @50mA
INSTALLATION
Current consumption
: Approx. 60 mA
Operating temperature
: 0 to 55°C (32 to 131°F)
Operating humidity
: 30 to 95 %RH (non-condensing)
Mounting
: Installation Base (model: M8BSx)
Weight
: 70 g (2.5 oz)
PERFORMANCE in percentage of span
Setpoint accuracy
: ±0.5 %
Trip point repeatability
: ±0.05 %
Temp. coefficient
: ±0.02 %/°C (±0.01 %/°F)
Response time
: ≤ 0.7 sec. (0 – 100 % at 90 % setpoint)
Line voltage effect
: ±0.1 % over voltage range
Insulation resistance
: ≥ 100 MΩ with 500 V DC
Dielectric strength
: 1500 V AC @1 minute (input to output 1 to output 2 to power to ground)
SWC test
: ANSI/IEEE-C37.90.1-1989
FRONT VIEW
EXTERNAL DIMENSIONS unit: mm [inch]
SCHEMATIC CIRCUITRY & CONNECTION DIAGRAM