Thermocouple Input to Dual Thermocouple Output Splitter/Converter, Factory Ranged
APD 41390
1 Input:
Any Thermocouple
2 Outputs:
Any 2 Thermocouples, Alarm Relay Options
O
Split or Convert a T/C to Any Two T/C Types
O
Add Additional Isolated Output to Existing T/C
O
Zero and Span Output Calibration
O
Input LoopTracker
®
Q
Split/Convert Thermocouples for PLC Input, Control
or Validation
Q
Interface Thermocouples with Panel Meters, PLCs,
Recorders, Data Acq., DCS, & SCADA Systems
Applications
Description
The APD 41390 accepts a thermocouple temperature input and
provides two independent thermocouple outputs. This makes
it useful to match up the available thermocouple type with
an instrument T/C input, for data recording, or when isolating
inputs and outputs.
The thermocouple types are factory set. Both output tempera-
tures correspond to the input temperature and are limited by
the smallest ANSI temperature range of the three T/C types you
select. Each T/C type may be different if desired. Use appropri-
ate thermocouple extension wire as needed.
The input is sampled, CJC compensated, digitally converted to
a linearized temperature signal, and then passed to the output
stages where it is converted to two simulated thermocouple
outputs with CJC compensation. Contact factory if the CJC
compensation is to be disabled.
Full 4-way galvanic isolation (input, output 1, output 2, power)
make this module useful for ground loop elimination, common
mode signal rejection, and noise pickup reduction.
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.
Thermocouple Input, Factory Set
T/C types:
J, K, T, E, M, N, P, R, S, B, C, D, G
Temp. range: Full ANSI range, or specify °F or °C range
Linearity:
±0.1°C and 0.001°C resolution
Linearization: Polynomials, 1°C segments for types M and P
T/C CJC:
Automatic
T/C current: Less than 10 µA, including burnout sense
T/C burnout: Upscale (standard),
B
: downscale,
N
: none
Custom:
Provide T/C millivolt data, °F or °C range
Status LEDs
LoopTracker:
Variable brightness green for input level
Yellow LED:
Error status
Red/green LED: Alarm state (with alarm option only)
Thermocouple Output, Channel 1, Factory Set
T/C types:
J, K, T, E, M, N, P, R, S, B, C, D, G
Temp. range: Limited by smallest ANSI T/C range
Linearity:
To temperature
Linearization: Polynomials, 1°C segments for types M and P
T/C CJC:
Automatic, can be factory disabled
Thermocouple Output, Channel 2, Factory Set
T/C types:
J, K, T, E, M, N, P, R, S, B, C, D, G
Temp. range: Limited by smallest ANSI T/C range
Linearity:
To temperature
Linearization: Polynomials, 1°C segments for types M and P
T/C CJC:
Automatic, can be factory disabled
Output Calibration
Zero and span potentiometers for each output, ±15% range
Output Resolution
16 bit
Output Ripple and Noise
Less than ±0.2% of span
Optional Alarm Relay
Single setpoint dual DPST contact sets, factory configured
1 Form A (NO) and 1 Form B (NC) contact sets (4 terminals)
May be field wired for Form C operation
8 A max @ 240 VAC
resistive load
Use external contact
protection (RC snub-
ber) for inductive loads
Red/Green bi-color
LED for alarm status
One set point, 12
turn potentiometer,
0-100% of span
One reset point, 12
turn potentiometer, 0-100% of span
Default: HI alarm, non-latching, normal acting (failsafe)
Relay Test button toggles relay to opposite state or resets
relay with HT option
Ambient Temperature Range and Stability
–10°C to +60°C operating ambient
Better than ±0.02% of span per °C stability
Response Time
500 milliseconds minimum
Isolation
Full 4-way galvanic: input, output 1, output 2, 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. Allow room for air flow.
For use in Pollution Degree 2 Environment
Eight 4-terminal removable connectors, 14 AWG max. wire size
Power
85-265 VAC, 50/60 Hz or 60-300 VDC, 6 W maximum
D versions: 9-30 VDC or 10-32 VAC 50/60 Hz, 6 W maximum
Dimensions
1.78" W x 4.62" H x 4.81" D
(45 mm W x 117 mm H x 122 mm D)
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Made in USA
Applications Link
api-usa.com/apps
Pb
Lead
Free
How to Order
—
Factory Ranged and Configured
Options
Model
Power
Input
Outputs
Alarm
Code
Description
APD 41390
85-265 VAC, 60-300 VDC
Specify
T/C type,
temperature
range in
°F or °C
Ch. 1
specify
T/C type
Ch. 2
specify
T/C type
none
-
B
N
RA
HP
HT
U
Upscale burnout (standard)
Downscale burnout
No burnout, last valid value
Reverse-acting alarm
Latching relay, power-off reset
Latching relay, push button reset
Conformal coating for moisture
resistance
APD 41390 D
9-30 VDC, 10-32 VAC
APD 41390 H
85-265 VAC, 60-300 VDC
HI alarm
(failsafe std.)
APD 41390 DH
9-30 VDC, 10-32 VAC
APD 41390 L
85-265 VAC, 60-300 VDC
LO alarm
(failsafe std.)
APD 41390 DL
9-30 VDC, 10-32 VAC
Optional Alarm
Relay
Input
LoopTracker
LED
Zero and
Span for
Each Output
Removable Plugs
1 2 3 4
5 6 7 8
9 10 11 12
13 14 15 16
25 26 27 28
29 30 31 32
17 18 19 20
21 22 23 24
See Wiring
Diagrams on
Next Page
Universal
Power
Quick Link:
api-usa.com/tc
Status LED
Note: Temperature range is limited by the smallest ANSI
range of the three T/C types selected.
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
