DC to DC Math Function Transmitters, Isolated
API 4400 G through API 4408 G
Input:
0-100 mV to 0-10 VDC or 0-1 mA to 0-20 mA
Output:
0-1 V to ±10 VDC or 0-1 mA to 4-20 mA
O
Add, Subtract, or Average up to 4 DC Inputs
O
Factory Set Custom I/O Ranges
O
Easy-to-Install Plug-In Design
O
Full 2000 V Input/Output/Power Isolation
O
Input and Output LoopTracker
®
LEDs
O
Output Test Button
Q
Add, Subtract, Average Flow Signals
Q
Average Multiple Signals
Applications
Description
The API 4400 G through API 4408 G are factory configured to
accept two to four DC voltage or current inputs and provide
an optically isolated DC voltage or current output that is pro-
portional to the sum, average and/or difference of the inputs
depending on the model.
The A, B, C, and D inputs should be the same type, and mixed
input ranges are allowable. Consult the factory when selecting
mixed input ranges.
Inputs are converted to a percentage and then the math
function is applied. Consult the factory if true voltage math
is required.
The API 4400 G series uses no transformers or choppers in the
signal path for best noise immunity and freedom from AC arti-
facts in the output. The inputs are not isolated from each other
and use the same signal common connection. The modules do
features full 3-way (input, output, power supply) isolation. A
wide bandwidth 1 millisecond response model is available for
high-speed applications.
Common ranges as well as custom ranges are possible.
Consult the factory for assistance with special ranges.
LoopTracker
API exclusive features include two LoopTracker LEDs (green for
input, red for output) that vary in intensity with changes in the
process input and output signals. These provide a quick visual
picture of your process loop at all times and can greatly aid in
saving time during initial startup and/or troubleshooting.
Output Test
An API exclusive feature includes the Functional Test Button
to provide a fixed output (independent of the input) when held
depressed. The output test level is adjustable from 0 to 100%
of output span.
The functional test button greatly aids in saving time during
initial startup and/or troubleshooting.
Installation
The API 4400 G through API 4408 G plug into an industry stan-
dard 11-pin octal socket sold separately. Sockets API 011 and
finger-safe API 011 FS allow either DIN rail or panel mounting.
The plug-in design, 3-way isolation, and robust electronics
allows the module to be quickly hot-swapped without removing
the power or I/O signals.
DC Input Ranges
Factory configured, please specify each input range
Minimum Maximum
Voltage:
0-100 mVDC 0-10 VDC
Bipolar voltage: ±100 mVDC ±10 VDC
Current:
0-1 mADC
0-20 mADC, 4-20 mA
Popular ranges: 0-1 VDC, 0-5 VDC, 1-5 VDC, 0-10 VDC,
±5 VDC, ±10 VDC, 0-20 mA, 4-20 mA
System voltages must not exceed socket voltage rating
Inputs are converted to a percentage and then the math
function is applied. Consult factory for mixed ranges, special
ranges or non-standard functions.
Input Impedance
Voltage:
100 k
Ω
per volt nominal
Current: 50
Ω
nominal
Input Voltage Burden (Current)
1.0 V
RMS
maximum
Balance Between Inputs
Better than ±0.5% of span
LoopTracker
Variable brightness LEDs indicate I/O loop level and status
DC Output Range
Factory configured, please specify output range or consult fac-
tory. See table on other side for common ranges.
Voltage, 10 mA max.: 0-1 VDC to
0-10 VDC
Bipolar voltage:
±1 VDC to
±10 VDC
Current:
0-1 mADC to 0-20 mADC
20 V compliance, 1000
Ω
at 20 mA
Output Calibration
Multi-turn zero and span potentiometers for output
±15% of span adjustment range typical
Output Loop Power Supply
20 VDC nominal, regulated, 25 mADC, max. ripple <10 mV
RMS
Output Test
Sets output to test level when pressed
Adjustable 0-100% of span
Output Ripple and Noise
Less than 10 mV
RMS
Linearity
Better than ±0.1% of span
Ambient Temperature Range and Stability
–10°C to +60°C operating ambient
Better than ±0.02% of span per °C stability
Response Time
100 milliseconds typical, faster response times are available
DF
option: 1 millisecond response time
Isolation
2000 VRMS minimum
Full isolation: power to input, power to output, input to output
Individual inputs are single-ended (common ground)
Housing and Sockets
IP 40, requires installation in panel or enclosure
API 011 or API 011 FS socket
Socket mounts to 35 mm DIN rail or can be surface mounted
Power
Standard:
115 VAC ±10%, 50/60 Hz, 2.5 W max.
P option:
85-265 VAC 50/60 Hz, 60-300 VDC, 2.5 W
A230 option: 230 VAC ±10%, 50/60 Hz, 2.5 W max.
D option:
9-30 VDC, 2.5 W typical
Hot Swappable
Plug-In Design
Power options—add to end of model number
A230
230 VAC
P
85-265 VAC or 60-300 VDC
D
9-30 VDC
Options—add to end of model number
DF
Fast response, 1 millisecond nom. response time
DF option will cause output noise levels greater
than standard specifications.
U
Conformal coating for moisture resistance
Accessories—order as separate line item
API 011
11-pin socket
API 011 FS
11-pin finger-safe socket
API CLP1
Module hold-down spring for high vibration or
mobile applications
Free Factory
I/O Setup!
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Made in USA
API 011
300 V Rating
API 011 FS
300 V Rating
API CLP1
1.75"
2.38"
Variable Brightness
Input LED
Output Test Button
Output Test Adjust
Output Span
Output Zero
Variable Brightness
Output LED
2.75"
Model
Function
Factory Configured Input
Output
Power
API 4400 G
(A + B + C + D) / 4
Specify 4 input ranges
Factory configured,
specify output range
115 VAC
API 4401 G
(A + B + C) / 3
Specify 3 input ranges
115 VAC
API 4402 G
(A + B) / 2
Specify 2 input ranges
115 VAC
API 4403 G
(A + B + C – D) / 3
Specify 4 input ranges
115 VAC
API 4404 G
(A + B – C – D) / 2
Specify 4 input ranges
115 VAC
API 4405 G
A – B – C – D
Specify 4 input ranges
115 VAC
API 4406 G
(A + B – C) / 2
Specify 3 input ranges
115 VAC
API 4407 G
A – B – C
Specify 3 input ranges
115 VAC
API 4408 G
A – B
Specify 2 input ranges
115 VAC
Quick Link
api-usa.com/4400
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