Universal Thermistor to DC Isolated Transmitter, Field Configurable
APD 4152
Input:
Thermistor, or Custom Sensor
Output:
0-1 V to 0-10 V, ±5 V, ±10 V, 0-2 mA to 4-20 mA, Reverse Acting Optional
O
One Model Covers All Common Thermistor Sensors
O
Easy Setup
—
No Computer or Software Needed
O
Zero and Span Output Calibration Buttons
O
Full 1200 V Isolation
O
Input LoopTracker
®
LED, Output Test Function
O
Built-In Loop Power Supply for Sink/Source Output
Q
Convert/Isolate Thermistors for PLC Input, Control
and/or Validation
Q
Interface Thermistors with Panel Meters, PLCs,
Recorders, Data Acq., DCS, & SCADA Systems
Applications
Description
The APD 4152 accepts a thermistor temperature input and
provides an optically isolated and linearized DC voltage or
current output.
The sensor type, temperature range and output range are field
configurable. The input type is set with switches and its range
is configured using front buttons, a multimeter and an input
simulator. This provides a versatile solution that works with all
commonly available thermistor sensors.
Microprocessor-based linearization uses 41 to 55 segments or
up to a 14th order polynomial depending on the sensor type.
The input is sampled, digitally converted to a linearized tem-
perature signal and then passed through an optocoupler to the
output stage.
Full 3-way isolation (input, output, power) make this module
useful for ground loop elimination, common mode signal rejec-
tion, and noise pickup reduction.
The low noise 18 bit analog output is isolated and can be set up
for common voltage and milliamp output types.
Output Sink/Source Versatility
Standard on the APD 4152 is a 20 VDC loop excitation supply
for the milliamp output. The output can be selectively wired for
sinking or sourcing allowing use with a powered or unpowered
milliamp device.
LoopTracker
An API exclusive feature includes a green LoopTracker LED that
varies in intensity with changes in the process input signal.
It provides a quick visual picture of your process input at all
times and can greatly aid in saving time during initial startup
and troubleshooting.
Output Test
An API exclusive feature includes an output test switch to
provide a fixed output (independent of the input) when pressed.
The output test greatly aids in saving time during initial startup
and/or troubleshooting.
The test output level is adjustable from 0 to 100% of the
output span.
Input Types, Field Selectable
Thermistors: 44004/44033 2.252 k
Ω
at 25°C
44005/44030 3.000 k
Ω
at 25°C
44007/44034 5.000 k
Ω
at 25°C
44006/44031 10.00 k
Ω
at 25°C
44008/44032 30.00 k
Ω
at 25°C
YSI 400 2.252 k
Ω
at 25°C
Spectrum 1003k 1 k
Ω
Custom:
Provide sensor specifications, temperature
curve data, and temperature range
LoopTracker
Variable brightness green LED indicates input level and status
Status LED
Yellow LED for setup and operational status
DC Output Ranges, Field Selectable
Voltage: 0-1 V, 0-2 V, 0-4 V, 0-5 V, 1-5 V,
0-8 V, 0-10 V, 2-10 V,
±5 VDC, ±10 VDC
Current: 0-2 mA, 0-4 mA, 0-8 mA,
0-10 mA, 2-10 mA, 0-16 mA, 0-20 mA,
4-20 mA
20 V compliance, 1000
Ω
at 20 mA
Reverse Acting Output, Factory Set
R
option: Reverse acting output
increasing input = decreasing output signal
Reverse acting models cannot be converted to direct acting
Output Calibration
Zero and span set by using up/down buttons, ±10% range
Output Loop Power Supply
20 VDC nom., regulated, 25 mADC, <10 mV
RMS
max. ripple
May be selectively wired for sinking or sourcing mA output
Output Test
Front push button switch enables/disables test level output
Adjustable 0-100% of span via up/down buttons
Output Resolution
18 bit
Output Ripple and Noise
Less than ±0.2% of span
Accuracy
±0.1°C accuracy and 0.001°C resolution
Ambient Temperature Range and Stability
–10°C to +60°C operating ambient
Better than ±0.02% of span per °C stability
Response Time
300 milliseconds nominal
Isolation
Full 3-way isolation: input, output, power, 1200 V
RMS
min.
600 VACp or 600 VDC common mode protection
75 dB minimum common mode rejection
Simultaneous 50 Hz and 60 Hz rejection
Housing and Connectors
IP 40, requires vertical installation on a 35 mm DIN rail inside
a panel or enclosure
For use in Pollution Degree 2 Environment
Four 4-terminal removable connectors, 14 AWG max. wire size
Power
85-265 VAC, 50/60 Hz or 60-300 VDC, 3 W maximum
D versions: 9-30 VDC or 10-32 VAC 50/60 Hz, 3 W maximum
Removable Plugs
Sink or Source
mA Output
Setup and Status
LED
Input LoopTracker
LED
Zero and Span for
Output
Universal
Thermistor Input
Adjustable Output
Test Function
How to Order
Model
Description
Power
APD 4152
Thermistor input
to DC output
isolated
transmitter
85-265 VAC, 50/60 Hz or
60-300 VDC
APD 4152 D
9-30 VDC or 10-32 VAC
Options and Accessory
Universal
Power
Note:
An appropriate simulator and a multimeter are required
for setup. We can set up the I/O ranges at no extra charge.
Models are field rangeable. For free setup specify the following.
Thermistor: Sensor model/type, resistance
Custom:
Complete sensor data over temperature range
Temperature: Range in °F or °C
Output:
Range and type (mV, V, mA)
Options—add to end of model number
NC5
5 point NIST traceable calibration certificate
NC11
11 point NIST traceable calibration certificate
U
Conformal coating for moisture resistance
R
Reverse acting output
Accessory—order as separate line item
API BP4
Spare removable 4 terminal plug, black
Dimensions
Height includes connectors
0.89" W x 4.62" H x 4.81" D (22.5 x 117 x 122 mm)
Quick Link:
api-usa.com/apd4152
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Made in USA
File E145968
85-265 VAC, 60-300 VDC
model only
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Pb
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