RTD Input Alarm Trips, Factory Ranged, Isolated
APD 1400, APD 1420
Input:
2 or 3 Wire RTD
Output:
Two 8 Amp SPDT Relays
O
Factory Set Input Range
O
Removable Plugs for Faster Installation
O
Input LoopTracker
®
and Alarm Status LEDs
O
Full 1200 V Isolation
O
Alarm Test, Optional Reset Button
O
RTD Leadwire Compensation
Q
Process Limit Alarm
Q
Monitor, Heaters, Refrigerators, Ovens
Q
Process Signal Over or Under Alarms
Applications
Temperature Input
Factory configured, please specify the following
Resistance at 0°C, curve, temperature range
RTD types:
10
Ω
to 2000
Ω
RTDs including
100
Ω
0.00385 DIN, 100
Ω
0.003916,
100
Ω 0
.00392, 10
Ω
Cu,
1000
Ω
Ni-Fe, 120
Ω
Ni
Temperature range: °F or °C
100°F (55°C) min. span or consult fac-
tory
RTD Typical Excitation Current
10
Ω
:
10 mA
100
Ω
:
2 mA
1000
Ω
: 0.5 mA
2000
Ω
:
0.2 mA
Leadwire Compensation
< ±0.05% of span per 1
Ω
change in leadwire resistance
Isolation
Power to input isolation:
1200 V
Common mode protection: 600 VAC
p
or 600 VDC
LoopTracker
Variable brightness LED indicates input level and status
APD 1400 Relay Output
Dual SPDT Form C contact sets operating in unison
1 setpoint adjustment, 1 deadband adjustment
Standard: HI alarm, non-latching, normal acting
Options: LO alarm, latching, reverse acting
APD 1420 Relay Output
2 independent SPDT Form C contact sets
2 setpoint adjustments, 2 deadband adjustments
Standard: HI/LO alarm, non-latching, normal acting
Options: LO/LO, HI/HI, LO/HI alarms, latching, reverse acting
Relay Contact Ratings
8 A max @ 240 VAC resistive load
External contact protection such as an RC snubber is recom-
mended for inductive loads
Setpoint
12 turn potentiometer adjustable from 0 to 100% of span
Deadband
12 turn potentiometer adjustable from 1 to 100% of span
Response Time
70 milliseconds typical
Output Test/Reset Button
Front button or external contact closure toggles relays to
opposite state when pressed.
Resets relay if latching relay option is ordered
Ambient Temperature Range and Stability
–10°C to +60°C operating ambient
Better than 0.04% of span per °C
Switching Current (A)
Switching Voltage (V)
0
3 5 10
30 50 100 300 500
8
5
3
1
0.5
0.3
0.1
AC inductive load
(cos
f
= 0.4)
AC resistive
load
DC inductive load
(L/R = 7 ms)
DC resistive
load
Alarm Options
—
add to end of model number
L
APD 1400 with LO trip. Alarm trips on decreasing signal.
HH
APD 1420 with HI/HI trip. Alarms trip at their respective
trip points on increasing signal.
LL
APD 1420 with LO/LO trip. Alarms trip at their respec-
tive trip points on decreasing signal.
LH
APD 1420 with LO/HI trip. Alarm 1 trips on decreasing
signal. Alarm 2 trips on increasing signal.
HT
Latching alarm with push button reset
HP
Latching alarm with power-off reset. Module power
must be turned off to reset alarms
R
Reverse-acting alarms. Relay coils energized in an alarm
condition. No alarm condition with module power off.
U
Conformal coating for moisture resistance
Accessory—order as separate line item
API BP4
Spare removable 4 terminal plug, black
© 08-18
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1220 American Way Libertyville, IL 60048
Phone:
800-942-0315
Fax: 800-949-7502
A
BSOLUTE
P
ROCESS
I
NSTRUMENTS
Model
Input
Standard Alarm Configuration
Power
APD 1400
Factory ranged, specify:
Sensor type
Calibration curve
Temperature range in
°F or °C
Single setpoint dual SPDT relays
HI alarm, non-latching, normal acting
85-265 VAC or 60-300 VDC
APD 1400 D
9-30 VDC or 10-32 VAC
APD 1420
2 setpoints, 2 SPDT relays
HI/LO alarms, non-latching, normal acting
85-265 VAC or 60-300 VDC
APD 1420 D
9-30 VDC or 10-32 VAC
Description
The APD 1400 and 1420 accept an RTD temperature input
and provide a visual alarm indication and alarm relay contact
outputs.
The input type, range, and alarm types are factory configured.
The input can be configured for most 10
Ω
to 2000
Ω
RTDs.
Front-accessible potentiometers are used to adjust alarm
setpoint and deadband.
LoopTracker and Alarm Status LEDs
API exclusive features include a LoopTracker LED that varies
in intensity with changes in the process input signal.
A red/green bi-color alarm status LED (two on the APD 1420)
visually indicate alarm status.
These LEDs provide a quick visual picture of your process
at all times.
Output Test / Unlatch
API's exclusive Output Test button can be used to verify the
alarm and system operation and also provides the additional
function of unlatching the alarm when the latching option has
been ordered. This feature can be remotely operated.
The output test button greatly aids in saving time during initial
startup and/or troubleshooting.
Dimensions
0.89" W x 4.62" H x 4.81" D
(22.5 x 117 x 122 mm)
Height includes connectors
Housing and Connectors
IP 40, requires installation in panel or enclosure
For use in Pollution Degree 2 Environment
Mount vertically to a 35 mm DIN rail
Four 4-terminal removable connectors, 14 AWG max wire size
Power
85-265 VAC, 50/60 Hz or 60-300 VDC, 2 W maximum
D versions: 9-30 VDC or 10-32 VAC 50/60 Hz, 2 W maximum
Quick Link:
api-usa.com/1000
Input:
0-50 mV to ±10 VDC, 0-1 mA to 4-20 mADC
Output:
Two 8 Amp DPST Relays
1 2 3 4
5 6 7 8
9 10 11 12
13 14 15 16
See Wiring
Diagrams on
Next Page
1 2 3 4
5 6
7 8
9 10 11 12
13 14 15 16
Universal Power
Alarm Status LED
Input LoopTracker LED
Alarm Test Function
Adjustable Deadband
Two 8 Amp SPDT
Alarm Relays
Custom Input Ranges
Removable Plugs
Adjustable Setpoint
File E145968
85-265 VAC, 60-300 VDC
model only
Free Factory
I/O Setup!
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Made in USA
Quick Link:
api-usa.com/1400
Applications Link
api-usa.com/apps
