AS4R  Plug-in Signal Conditioners M-UNIT

RTD ALARM

(dual or quad alarm trip; field-configurable)
Functions & Features
• Provides relay outputs at preset temperature levels
• Quad or dual trip
• Setting and display in engineering unit values
• Setpoint adjustments with the front keypad
• Software lock
• Adjustable hysteresis (deadband)
• On-delay timer
• Hi/Lo trip and energized/de-energized coil independently selectable for each setpoint
• Enclosed relays
• Relays can be powered by 200 V AC and 100 V DC
• High-density mounting on DIN rail
Typical Applications
• Annunciator
• Various alarm applications

MODEL: AS4R–[1]–[2][3]

ORDERING INFORMATION

• Code number: AS4R-[1]-[2][3]
Specify a code from below for each of [1] through [3].
  (e.g. AS4R-2-R/UL/Q)
• Specify the specification for option code /Q
  (e.g. /C01/SET)

[1] OUTPUT

2:  4 points; N.O. or make contact
3:  4 points; N.C. or break contact
5:  2 points; SPDT or transfer contact

[2] POWER INPUT

AC Power
M2 : 100 – 240 V AC, 50 – 60 Hz
 (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.)
P : 110 V DC
(Operational voltage range 85 – 150 V, ripple 10 %p-p max.)

[3] OPTIONS (multiple selections)

Standards & Approvals
blank : CE marking
/UL : UL approval, CE marking
Temperature Range
blank : -5 to +55°C
/T : Wide operating temperature range -25 to +55°C
(Option /T is Not selectable with UL approval.)
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 (UL not available)
TERMINAL SCREW MATERIAL
/S01 : Stainless steel (UL not available)
EX-FACTORY SETTING
/SET : Preset according to the Ordering Information Sheet
 (No. ESU-1606)

GENERAL SPECIFICATIONS

Construction : Plug-in
Connection : M3.5 screw terminals
Screw terminal : Chromated steel (standard) or stainless steel
Housing material : Flame-resistant resin (black)
Isolation : Input to output to power
Burnout : Upscale standard; downscale optional by programming
Sampling cycle:  100 msec.
User-configurable items : Front key pad
• Alarm setpoint
• Power ON-delay time
• Alarm ON-delay time
• Moving average
• Hi/Lo trip operation
• Coil at alarm
• Hysteresis (deadband)
• Temperature limit
• Temperature unit
• RTD type
• Others
(Refer to the instruction manual)
■  DISPLAY
LED : 8 mm (.31”) 7 segment, red
Number of display digits : 4 digits for DATA display;
2 digits for ITEM display
PV indication:  Temperature in engineering unit
Overrange indication : LEDs blinking
Power saving mode : Displays turn off if the keys are untouched for a preset time period
LEDs : Red LEDs turn on when coils are energized.
(L1 and L2 for 2-point alarm.  L1, L2, L3 and L4 for 4-point alarm.)

INPUT SPECIFICATIONS

Maximum leadwire resistance:  200 Ω per wire (3-wire)
Sensing current:  ≤ 1.0 mA
Default setting : Pt 100 (JIS ’97, IEC) -100.0 – +500.0°C
Minimum step:
  -199.9 to 999.9: 0.1
  Not greater than -200, not lower than 1000: 1

OUTPUT SPECIFICATIONS

■  Quad Alarm
Relay rating:
120 V AC @ 1 A (cos ø = 1)
240 V AC @ 0.5 A (cos ø = 1)
30 V DC @ 1 A (resistive load)
Maximum switching voltage (Note) :  380 V AC or 125 V DC
Maximum switching power (Note) :  120 VA or 30 W
Minimum load:  5 V DC @ 10 mA
Mechanical life:  5 × 10 ⁷  cycles
■  Dual Alarm
Relay rating:
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 (Note) :  380 V AC or 125 V DC
Maximum switching power (Note) :  600 VA or 150 W
Minimum load:  5 V DC @ 10 mA
Mechanical life:  5 × 10 ⁷  cycles

(Note): The value indicate capacity of output relay in equipment.
 Use within relay rating for EU and UL.

INSTALLATION

Power consumption
• AC : ≤ 6 VA
• DC : ≤ 3.5 W
Operating humidity : 30 to 90 %RH (non-condensing)
Mounting : Surface or DIN rail
Weight : 500 g (1.1 lb)

PERFORMANCE in percentage of FS input

Setpoint accuracy (trip point accuracy) :
±(0.1% of FS + 1 digit)
±(0.2% of FS + 1 digit) for Cu 10
Display accuracy:  ±(0.1 % of FS + 1 digit)
Temp. coefficient : ±0.015 %/°C (±0.008 %/°F)
Response time : ≤ 1.5 sec. (0 – 100 % at 90 % setpoint)
Burnout response : ≤ 5 sec.
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 to output to power: Basic insulation (300 V)
RoHS Directive
Approval :
UL/C-UL general safety requirements
  (UL 61010-1, CAN/CSA-C22.2 No.61010-1)