Mod-tronic APD 1500 Series Quick Start Manual

Strain Gauge Transducer Alarm Trips, Factory Ranged, Isolated
Input: 100 Ω to 10,000 Ω Bridges, 5 mV to 2000 mV, 1-10 VDC Excitation
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
Applications
Q Load Cell Weighing Systems and Scales
Q Strain Gauge Pressure Sensors and Transducers
Q Tanks, Scales, Extruder Melt Pressure, Crane Loads
Strain Gauge Input Range
Factory configured, specify sensor mV/V rating and mV range
Minimum sensor rating: 5 mV
Maximum sensor rating: 2000 mV
Millivolt range is determined by the sensitivity of the sensor
(mV/V) and the excitation voltage applied.
mV/V sensitivity X excitation voltage = total mV range
Input Impedance
1 MΩ minimum
Isolation
Power to input isolation: 1200 V
Common mode protection: 600 VAC or 600 VDC
p
Excitation Voltage
Factory configured, please specify excitation voltage
Refer to the sensor manufacturer's recommendations.
Excitation: 1 to 10 VDC, 30 mA max.
Fine adjustment: Approximately ±0.25 VDC
Stability: ±0.01% per °C
Designed for one 350 Ω (or greater) sensor
LoopTracker
Variable brightness LED indicates input loop level and status
APD 1500 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 1520 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
AC inductive load AC resistive
(cos f = 0.4)
8
5
3
DC inductive load
1
(L/R = 7 ms)
0.5
DC resistive
0.3
load
0.1
0 3 5 10 30 50 100 300 500
Switching Voltage (V)
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 0.02% of span per °C
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Made in USA
Free Factory
I/O Setup!
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
load
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
Model
APD 1500
APD 1500 D
APD 1520
APD 1520 D
Alarm Options—add to end of model number
L
APD 1500 with LO trip. Alarm trips on decreasing signal.
HH APD 1520 with HI/HI trip. Alarms trip at their respective
trip points on increasing signal.
LL APD 1520 with LO/LO trip. Alarms trip at their respective
trip points on decreasing signal.
LH APD 1520 with LO/HI trip. Alarm 1 trips on decreasing
signal. Alarm 2 trips on increasing signal.
File E145968
85-265 VAC, 60-300 VDC
model only
Removable Plugs
Two 8 Amp SPDT Alarm Relays
Alarm Test Function
Input LoopTracker LED
Alarm Status LED
Adjustable Deadband
Adjustable Setpoint
Custom Input Ranges
See Wiring
Diagrams on
Next Page Universal Power
Input Standard Alarm Configuration
Single setpoint dual SPDT relays
Factory ranged, specify
HI alarm, non-latching, normal acting
sensor mV/V rating,
mV range, excitation
2 setpoints, 2 SPDT relays
voltage
HI/LO alarms, non-latching, normal acting
APD 1500, APD 1520
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Description
The APD 1500 and APD 1520 accept a strain gauge, bridge, or
load cell input and provide a visual alarm indication and alarm
relay contact outputs.
The input is factory configured to a specific excitation volt-
age and millivolt input range. The input can be configured as
zero-based (i.e., 0 to 20 mV), bipolar (i.e., –30 to +30 mV) for
push-pull applications, or offset (i.e., 5 to 33 mV) to electroni-
cally compensate for deadweights (tare).
The alarm types are factory configured.
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 bicolor alarm status LED (two on the APD 1520)
visually indicate alarm status. These LEDs provide a quick
visual picture of your process at all times.
Output Test / Unlatch
The API 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.
85-265 VAC or 60-300 VDC
9-30 VDC or 10-32 VAC
85-265 VAC or 60-300 VDC
9-30 VDC or 10-32 VAC
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
See Wiring
Diagrams on
Next Page
Power