• Lifetime Warranty on API Modules
• LoopTracker ^® I/O LEDs
• Hot-Swappable Plug-In Design
• Zero and Span Output Calibration
• Push to Test Output
• Full I/O/Power Isolation

Click on PDF links below
for product information

DC to DC Signal Conditioners
Math Functions

Factory Configured

APD44xx series  from $499

Open Datasheet
Download Datasheet
APD 4400: (A+B+C+D)/4
APD 4401: (A+B+C)/3
APD 4402: (A+B)/2
APD 4403: (A+B+C–D)/3
APD 4404: (A+B–C–D)/2
APD 4405:  A–B–C–D
APD 4406: (A+B–C)/2
APD 4407:  A–B–C
APD 4408:  A–B
APD 4410: A x B
APD 4420: A / B
APD 4430: Input or output squared
APD 4440: Square root of input or output
APD 44xx: Custom math or linearization  from $539

DC to DC Signal Conditioners
High/Low Select Functions

APD44Hx and APD44Lx series  from $499

Open Datasheet
Download Datasheet
APD 44H2: High select from 2 inputs
APD 44H3: High select from 3 inputs
APD 44H4: High select from 4 inputs
APD 44L2: Low select from 2 inputs
APD 44L3: Low select from 3 inputs
APD 44L4: Low select from 4 inputs

4 Digit 4-20 mA Loop Powered Display

Field Rangeable

S315  $139 *stock item*
S315-IP66  $300

Open Datasheet
Download Datasheet
Open Installation Manual
Download Installation Manual
Click to see ALL Seneca products

Literature and Links

API product brochure
See all DC input transmitters
Options & accessories
Cross reference
Regulatory Compliance page

Specify input ranges
Factory configured
Input negative is common
Voltage: 0-50 mVDC to 0-10 VDC
Bipolar voltage: ±25 mVDC to ±10 VDC
Current: 0-1 mADC to 0-20 mADC
Bipolar current: ±0.5 mADC to ±20 mADC
Specify output range
Factory configured
0-1 V to ±10 V
0-2 mA to 0-20 mA, 4-20 mA

Specify input ranges
Factory configured
Input negative is common
Voltage: 0-50 mVDC to 0-10 VDC
Bipolar voltage: ±25 mVDC to ±10 VDC
Current: 0-1 mADC to 0-20 mADC
Bipolar current: ±0.5 mADC to ±20 mADC
Specify output range
Factory configured
0-1 V to ±10 V
0-2 mA to 0-20 mA, 4-20 mA

Loop Powered Display
Input: 4-20 mA
Display: 4 digit red LED

Reference Info

LoopTracker and Output Test
Sink vs Source
RFI/EMI

Applications

Phase separator water level control
Air Flow measurement
Milling machine feed

• Output LoopTracker LED
• Output test button
• I/O/power isolation
• Inputs share common ground
• Hot-swappable design
• 85-265 VAC, 60-300 VDC power
• D option for 9-30VDC/10-32VAC power
• For orders of 5 or more, call us for lead times

• Output LoopTracker LED
• Output test button
• I/O/power isolation
• Inputs share common ground
• Hot-swappable design
• 85-265 VAC, 60-300 VDC power
• D option for 9-30VDC/10-32VAC power
• For orders of 5 or more, call us for lead times

• 1/8 DIN panel mount or IP66 housing
• Scaleable 4 digit display