ES-2124 Rev.8
ADN
Limit Alarms (potentiometer adj.) A-UNIT
TWO-WIRE TRANSMITTER ALARM
(with square root extractor)
Functions & Features
• Powering a 4 – 20 mA DC current loop
• Providing SPDT relay outputs at preset current levels
• Shortcircuit protection
• Square root extraction
• Applicable to smart transmitters
• Dual (Hi/Lo) trip
• Energized or de-energized coil at a tripped condition selectable
• Deadband (hysteresis) adjustable
• Enclosed relays
• Relays can be powered 110 V DC
• High-density mounting
Typical Applications
• Annunciator
• Various alarm applications
MODEL: ADN–1[1][2]–[3][4]
ORDERING INFORMATION
• Code number: ADN-1[1][2]-[3][4]
Specify a code from below for each of [1] through [4].
(e.g. ADN-111-B/Q)
• Specify the specification for option code /Q
(e.g. /C01/S01)
INPUT
Current
4 – 20 mA DC (Input resistance 250 Ω)
SETPOINT ADJUSTMENTS
1
: Single-turn screws
[1] SETPOINT 1 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)
[2] SETPOINT 2 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] POWER INPUT
AC Power
B
: 100 V AC
C
: 110 V AC
D
: 115 V AC
F
: 120 V AC
G
: 200 V AC
H
: 220 V AC
J
: 240 V AC
DC Power
S
: 12 V DC
R
: 24 V DC
V
: 48 V DC
P
: 110 V DC
[4] OPTIONS
blank
: none
/Q
: With options (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
TERMINAL SCREW MATERIAL
/S01
: Stainless steel
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 1 to output 2 to power
Zero adjustment
: -5 to +5 % (front)
Span adjustment
: 95 to 105 % (front)
Setpoint adjustments
: 270°-turn screwdriver adjustments (front); 0 – 100 % independently
Low-end cutout function
: Below 1 % input. A setpoint below 10 % output equals 0 %.
Deadband
(hysteresis) adjustments
: 1 - 100% of square root value (rear)
Front LEDs
: LED turns on at a tripped condition; red for output 1, green for output 2
Power ON timer
: Relays de-energized for approx. 2 seconds after power is turned on.
SUPPLY OUTPUT
Output voltage
: 24 – 28 V DC with no load
Current rating
: ≤ 22 mA DC
•
Shortcircuit Protection
Current limited
: 35 mA max.
Protected time duration
: No limit
INPUT SPECIFICATIONS
■
DC Current
: Input resistor incorporated
OUTPUT SPECIFICATIONS
■
Relay Contact
: 100 V AC @ 1 A (cos ø = 1)
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
: 380 V AC or 125 V DC
Maximum switching power
: 120 VA or 30 W
Minimum load
: 5 V DC @ 10 mA
Mechanical life
: 5 x 10
7
cycles
For maximum relay life with inductive loads, external protection is recommended.
INSTALLATION
Power input
•
AC
: Operational voltage range: rating ±10 %,
50/60 ± 2 Hz, approx. 2.5 VA
•
DC
: Operational voltage range: rating ±10 %, or 85 – 150 V for 110 V rating (ripple 10 % p-p max.)
approx. 2 W (80 mA at 24 V)
Operating temperature
: -5 to +60°C (23 to 140°F)
Operating humidity
: 30 to 90 %RH (non-condensing)
Mounting
: Surface or DIN rail
Weight
: 380 g (0.84 lb)
PERFORMANCE in percentage of span
Trip point repeatability
: ±0.5 % with input 1 – 100 %
Temp. coefficient
: ±0.05 %/°C (±0.03 %/°F)
Response time
: ≤ 1 sec. (0 – 100 % at 90 % setpoint)
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 1 to output 2 to power to ground)
EXTERNAL VIEW
EXTERNAL DIMENSIONS & TERMINAL ASSIGNMENTS unit: mm [inch]
SCHEMATIC CIRCUITRY & CONNECTION DIAGRAM