Signal Conditioners, Converters, Transmitters: DC Input

Analog DC to DC Signal Conditioners, Converters, Isolators, Transmitters
6 Year 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 Links Product brochure Options & accessories Cross reference Regulatory compliance Click on PDF links below for product information	Reference Info Ground Loops RFI / EMI LoopTracker and Output Test Sink vs Source Applications Monitoring motor speed with a PLC Building heat SCR control Manual override of computer control Monitor pressure with a PLC Control & monitor with one flow meter Monitor product moved by conveyor Pharmaceutical process validation Dam bubbler SCR drive voltage Blower speed DC motor voltage and current DC motor current Bindicator level xmtr to PLC Contol conveyor material Sewage pumping stations Hydraulic fracking control Anemometer interface to PLC Special API4300 for engine speed	How to select your product Open pdf datasheet for your model Select model, range, units, options, accessories Contact us if you need assistance Need a quote? Contact us at , or Get a quote via "Chat with us" below, or Call 800-942-0315 and ask for Sales	Ready to order? Send your order to If you don't have open terms with us, we'll call you for your credit card info Other ways to order Click here to set up an account Click here to find your authorized dealer or if you are outside the USA Call us to find your local authorized distributor
Model	Input/Output	Features	Product
DC to DC Isolated Signal Conditioners Factory Configured API 4300 G from $339 Open Datasheet Download Datasheet	API 4300 G Specify input range Factory configured 0-100 mVDC to 0-500 VDC ±100 mVDC to ±10 VDC 0-100 μADC to 0-900 mADC Specify output range Factory configured 0-1 V to 0-10 V ±1 V to ±10 V 0-1 mA to 0-20 mA, 4-20 mA	Hot-swappable plug-in design Replaces Action AP 4300 I/O LoopTracker LEDs Output test button Full I/O/power isolation 18 V loop power supply Uses API-008 8-pin socket 115 VAC powered A230 option for 230 VAC P option: 85-265 VAC, 60-300 VDC power (+$60) D option: 9-30 VDC power (+$60)	API 4300 G
DC to DC Isolater Custom application: 0-20 mA to 0-20 mA Sinking input and output TX-4300 (74613) call for price Open Datasheet Download Datasheet	TX-4300 (74613) Do not substitute with API-4300 G Input Range 0-20 mADC sinking Output Range 0-20 mADC sinking	Used for Turblex, Siemens, Howden equipment Hot-swappable plug-in design I/O LoopTracker LEDs Output test button Full I/O/power isolation Plugs into standard 8-pin socket 9-30 VDC powered	TX-4300
Low Range DC to DC Isolated Signal Conditioners Factory Configured API 4310 G from $369 Open Datasheet Download Datasheet	API 4310 G Narrow/Low Input Specify input range Factory configured 0-10 mV to 0-100 mV ±10 mV to ±100 mV 0-100 μA to 0-1 mA Specify output range Factory configured 0-1 V to 0-10 V ±1 V to ±10 V 0-1 mA to 0-20 mA, 4-20 mA I/O reversal available	Hot-swappable plug-in design Replaces Action AP 4310 I/O LoopTracker LEDs Output test button Full I/O/power isolation 18 V loop power supply Uses API-008 8-pin socket 115 VAC powered A230 option for 230 VAC P option: 85-265 VAC, 60-300 VDC power (+$60) D option: 9-30 VDC power (+$60)	API 4310 G
DC to DC Isolated Signal Conditioner Factory Configured APD 4300 from $399 Open Datasheet Download Datasheet	APD 4300 Specify input range 0-100 mVDC to 0-300 VDC ±100 mVDC to ±10 VDC 0-1 mADC to 0-1000 mADC, 4-20 mA Specify output range Factory configured 0-1 V to 0-20 V ±1 V to ±10 V 0-1 mA to 0-20 mA, 4-20 mA I/O reversal available APD 4300 PLC Input range: 4-20 mA Output range: 4-20 mA	Removable plugs I/O LoopTracker LEDs Output test button Output test terminals for manual override capability Full I/O/power isolation Selectable I/O sink/source 15 V input loop power supply 20 V output loop power supply Universal power 85-265 VAC, 60-300 VDC D option for 9-30 VDC, 10-32 VAC power Correct sink-sink or source-source mismatches Isolate single-ended inputs Eliminate PLC/DCS ground loops Use with Allen Bradley, GE/Fanuc, IDEC, Omron, Mitsubishi, Modicon, Siemens, Panasonic, Honeywell analog inputs	APD 4300
DC to DC Isolated Signal Conditioner Field Selectable Minuteman Setup API 4380 G from $369 Open Datasheet Download Datasheet	24 Field configurable inputs 0-50 mV to 0-10 V ±5 V, ±10 V 0-1 mA to 0-20 mA, 4-20 mA 16 Field configurable outputs 0-1 V to 0-10 VDC ±5 V to ±10 V 0-2 mA to 0-20 mA, 4-20 mA	Minuteman one-minute setup Hot-swappable plug-in design Replaces Action AP4380, Wilkerson MM4380 I/O LoopTracker LEDs Output test button Full I/O/power isolation 18 V loop power supply Uses API-008 8-pin socket 115 VAC powered A230 option for 230 VAC P option: 85-265 VAC, 60-300 VDC power (+$60) D option: 9-30 VDC power (+$60)	API 4380 G
DC to DC Isolated Signal Conditioner Field Selectable Minuteman Setup APD 4380 from $419 Open Datasheet Download Datasheet	53 field configurable input ranges 0-10 mVDC to 0-130 VDC ±5 mV to ±65 VDC 0-200 μA to 0-50 mADC 18 Field configurable output ranges 0-1 V to 0-10 VDC ±5 V to ±10 V 0-2 mA to 0-20 mA, 4-20 mA	Minuteman one-minute setup Removable plugs I/O LoopTracker LEDs Output test button Full I/O/power isolation Selectable I/O sink/source 15 V input loop power supply 20 V output loop power supply Universal power 85-265 VAC, 60-300 VDC D option for 9-30 VDC, 10-32 VAC power	APD 4380
DC to DC Isolated Signal Conditoner Field Selectable Minuteman Setup API 4385 G from $379 Open Datasheet Download Datasheet	24 field configurable inputs -50-0 mVDC to 0-20 VDC, 20-40 VDC 0-200 μADC to 0-40 mADC, 10-50 mADC Selectable offset -100% to +100% 16 field configurable outputs 0-1 V to 0-10 V ±5 V, ±10 V 0-2 mA to 0-20 mA, 4-20 mA Non-interactive zero and span pots	Minuteman one-minute setup Selectable offset Non-interactive zero and span Hot-swappable plug-in design I/O LoopTracker LEDs Output test button Full I/O/power isolation 18 V loop power supply Uses API-008 8-pin socket 115 VAC powered A230 option for 230 VAC P option: 85-265 VAC, 60-300 VDC power (+$60) D option: 9-30 VDC power (+$60)	API 4385 G
DC to DC Isolated Signal Conditoner High Voltage DC Input Field Selectable Minuteman Setup API 4380 GHV3 from $429 Open Datasheet Download Datasheet	24 field configurable inputs 0-1 VDC to ±200 VDC 16 field configurable outputs 0-1 V to 0-10 V ±1 V to ±10 V 0-2 mA to 0-20 mA, 4-20 mA	Minuteman one-minute setup Hot-swappable plug-in design I/O LoopTracker LEDs Output test button Full I/O/power isolation Uses API-008 8-Pin Socket 115 VAC powered A230 option for 230 VAC P option: 85-265 VAC, 60-300 VDC power (+$60) D option: 9-30 VDC power (+$60)	API 4380 GHV3
DC to DC Isolated Signal Conditoner High Voltage DC Input Field Selectable Minuteman Setup APD HV-DC from $489 Open Datasheet Download Datasheet	8 selectable input ranges 7 standard plus 1 factory set 0-100 VDC to 0-1200 VDC, and custom Specify custom range if required (2000 VDC max.) Call us for bipolar input ranges 18 selectable output ranges 0-1 V to 0-10 V, ±5 V, ±10 V, 0-2 mA to 0-20 mA, 4-20 mA	I/O LoopTracker LEDs Output test button Full I/O/power isolation DIN rail mount 22.5 mm wide Universal power 85-265 VAC, 60-300 VDC D option for 9-30 VDC, 10-32 VAC power	APD HV-DC
DC-DC converter with 5KV Isolation Factory Configured HVI237 call for quote Open Datasheet Download Datasheet	Specify input type and range 1 to 100mADC 100 to 100VDC 100V to 2000VDC 0-5A true RMS Selectable range option: +/-100mV, 100mV, +/-250mV, 0-250mV Selectable range option: 150 VAC, 300VAC true RMS Specify output type and range One or two outputs available (not isolated from each other) 4-20mA (specify sink or source) 0-10V Custom output ranges Customized response time 250µs to 5s, 500mS standard	Convert a High Voltage signal to a DC output Front zero and span pots Output level LED Full I/O/power isolation Universal power options: 8 VDC to 280 VAC	HVI237
IsoSplitter® Signal Splitter 1 DC Input to 2 DC Outputs Factory Configured APD 4930 from $399 Open Datasheet Download Datasheet Open Features Download Features	Specify input range 0-10 mVDC to 100 VDC ±50 mV to ±10 VDC 0-1 mADC to 0-50 mADC, 4-20 mADC Specify output range for each channel 2 independent channels 0-1 V to 0-20 V ±1 V to ±10 V 0-1 mA to 0-25 mA, 4-20 mA	Removable plugs Output LoopTracker LEDs Selectable sink/source mA input 15 V input loop power supplies Sourcing mA output (sinking optional) 20 V output loop power supplies Sinking mA outputs optional Output test/manual override terminals Full I/O/power isolation DIN rail mount 22.5 mm wide Universal power 85-265 VAC, 60-300 VDC D option for 9-30 VAC/VDC power	APD 4930 DC IsoSplitter
IsoSplitter® Signal Splitter 1 DC Input to 2 DC Outputs Factory Configured APD 4393 from $589 Open Datasheet Download Datasheet	Specify input range Factory Configured 0-10 mVDC to 100 VDC ±50 mV to ±10 VDC 0-1 mADC to 0-50 mADC, 4-20 mADC Specify output range for each channel 2 independent channels 0-1 V to 0-20 V ±1 V to ±10 V 0-1 mA to 0-25 mA, 4-20 mA	Removable plugs I/O LoopTracker LEDs Selectable sink/source mA input 15 V input loop power supplies Selectable sink/source mA output 20 V output loop power supplies Output test button Full I/O/power isolation DIN rail mount 45 mm wide Universal power 85-265 VAC, 60-300 VDC D option for 9-30 VAC/VDC power	APD 4393 DC IsoSplitter
Universal Input to DC Isolated Signal Conditioner Field Programmable APD 8000 from $529 *Free I/O Range Setup* Include your I/O ranges on your order, and we'll set it up for you! Open Datasheet Download Datasheet Open Feature Summary Download Feature Summary	Field configurable inputs DC volts: 35 ranges from ±25mVDC to ±10 VDC DC mA sinking input, 20 ranges from ±0.5mADC to ±20mADC Potentiometer: 100Ω min. to 1 MegaΩ max. Thermocouple: J, K, T, E, R, S, N, B, C, D, G, M, P RTDs: 2, 3, or 4 wire, 10Ω to 8000Ω RTDs Thermistor: 44000 series, YSI 400, Spectrum Custom input available 18 field programmable output ranges Voltage: 0-1V, 0-2V, 0-4V, 0-5V, 1-5V, 0-8V, 0-10V, 2-10V, ±5V, ±10V Current: 0-2mA, 0-4mA, 0-8mA, 0-10mA, 2-10mA, 0-16mA, 0-20mA, 4-20mA Can be wired for sink or source	Switch and pushbutton setup Removable plugs Input LoopTracker LED Output test button Full I/O/power isolation Selectable sink/source output 20 V output loop power supply Universal power 85-265 VAC, 60-300 VDC D option for 9-30 VDC, 10-32 VAC power For orders of 5 or more, call us for lead times	APD 8000
Universal Input to DC Isolator/Converter V, mA, Ohms, TC, RTD Z109REG2-1 $289 Open Brochure Download Brochure Open Installation Manual Download Installation Manual Click to see ALL Seneca products Download .dwg CAD Drawing Download .stp 3-D Drawing	Configurable Input mV, V, (Bipolar from 75 mV to 20 V) mA (Bipolar up to 20 mA) RTD: Pt100, Pt500, Pt1000, Ni100, KTY81, KTY84, NTC; 3-4 wire Thermocouple: Type J, K, R, S, T, E, B, N, Potentiometer: 500 Ω to 100 kΩ Rheostat: 500 Ω to 25 kΩ Strobe: Alternative to output relay Output One isolated mA or Voltage Sink or source mA Configurable range 1 relay output	Configurable via DIP switches, USB, or Android app 3-way isolation 9-40 VDC/19-28 VAC power Free setup software Free Android App 1 year warranty DIN rail mount 17.5 mm wide	Z109REG2-1
DC to DC Isolated Signal Conditioner Field Configurable K109UI $250 stock item Open Datasheet Download Datasheet Open Installation Manual Download Installation Manual Click to see ALL Seneca products	Field Configurable Input Input: 0-20 mA, 4-20 mA, 0-5 VDC, 1-5 VDC, 0-10 VDC, 2-10 VDC, 0-15 VDC, 0-30 VDC Field Configurable Output Output: 4-20 mA, 0-20 mA, 20-4 mA, 20-0 mA, 0-5 V, 1-5 V, 0-10 V, 10-0 V	Only 6.2 mm wide DIP switch configuration Full 3-way isolation Low cost DIN rail mount without tools Power: 19.2-30 VDC or K-SUPPLY+KBUS	K109UI
DC to DC Isolated Transmitter with Sink/Source Input Field Configurable K109S $250 stock item Open Datasheet Download Datasheet Open Installation Manual Download Installation Manual Click to see ALL Seneca products	Field Configurable Input Input: 4-20 mA, 0-20 mA, 20-4 mA, 20-0 mA, 0-5 V, 1-5 V, 0-10 V, 10-0 V Field Configurable Output Output: 4-20 mA, 0-20 mA, 20-4 mA, 20-0 mA, 0-5 V, 1-5 V, 0-10 V, 10-0 V	Only 6.2 mm wide DIP switch configuration Full 3-way isolation Low cost DIN rail mount without tools Power: 19.2-30 VDC or K-SUPPLY+KBUS	K109S
Universal Input to 4-20 mA Loop Powered Transmitter Field Programmable K121 $165 stock item K121-C $190 ranged to order Open Datasheet Download Datasheet Open Installation Manual Download Installation Manual Click to see ALL Seneca products	Field Programmable Input Requires EASY-USB for configuration Input: –150 mV to +150 mV –30 V to +30V –24 mA to 24 mA RTD: Pt100, Pt500, Pt1000, Ni100 Thermocouple: J, K, T, E, R, S, B, N Potentiometer: 500 Ω to 10 KΩ Resistance: 1750 Ω Output: 4-20 mA loop powered Powered by the output loop	Only 6.2 mm wide PC programmable configuration Full 2-way isolation DIN rail mount without tools Powered by 4-20 mA loop	K121
DuoPak^® 2 Channel Isolated Signal Conditioners Factory Configured APD 2000 Series from $629	Specify input range for each channel APD 2000 Ch1: DC mV/V/mA Ch2: DC mV/V/mA APD 2001 Ch1: DC mV/V/mA Ch2: RTD APD 2003 Ch1: DC mV/V/mA Ch2: Potentiometer APD 2005 Ch1: DC mV/V/mA Ch2: Strain gauge APD 2006 Ch1: DC mV/V/mA Ch2: AC mV, V, mA APD 2007 Ch1: DC mV/V/mA Ch2: Frequency Specify output range for each channel 2 independent channels 0-1 V to 0-20 V ±1 V to ±10 V 0-1 mA to 0-25 mA, 4-20 mA	Optional I/O reversal I/O LoopTracker LEDs Selectable sink/source mA output 20 V output loop power supplies Output test buttons Full I/O/power isolation Removable plugs DIN rail mount 45 mm wide Universal power 85-265 VAC, 60-300 VDC D for 9-30 VDC, 10-32 VAC power	APD 2000 Series DC
Head-Mount Universal Transmitter, Isolated Field Programmable Fits DIN Form B Heads T121 $159 stock item T121-C $179 pre-programmed to order Open Datasheet Download Datasheet Open Installation Manual Download Installation Manual Click to see ALL Seneca products	Programmable Requires EASY-USB for configuration Input: Pt100 or Ni100, Pt500, Pt1000 J, K, R, S, T, B, E, N Potentiometer mVDC, VDC Selectable Output Output: 4-20 mA, 20-4 mA	Order T121-C for pre-programmed I/O 44 mm dia I/O isolation DIN B with 5.8mm (0.228"dia) center hole Power: 7 to 30 VDC current loop	T121
USB - UART TTL Converter EASY-USB $140 stock item Open Datasheet Download Datasheet Open Installation Manual Download Installation Manual EASY-USB Software Link	Programming Kit for K121, T120, T121	Includes Converter Software mini CD (or download latest) Adapter cable (std USB cable not included)	EASY-USB
4 Digit 4-20 mA Loop Powered Display Field Rangeable S315 $150 stock item S315-IP66 $310 Open Datasheet Download Datasheet Open Installation Manual Download Installation Manual Click to see ALL Seneca products	Loop Powered Display Input: 4-20 mA Display: 4 digit red LED	1/8 DIN panel mount or IP66 housing Scaleable 4 digit display	S315

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Analog DC to DC Signal Conditioners, Converters, Isolators, Transmitters

DC to DC Isolated Signal Conditioners

API 4300 G from $339

DC to DC Isolater

TX-4300 (74613) call for price

Low Range DC to DC Isolated Signal Conditioners

API 4310 G from $369

DC to DC Isolated Signal Conditioner

APD 4300 from $399

DC to DC Isolated Signal Conditioner

Field Selectable Minuteman Setup

API 4380 G from $369

DC to DC Isolated Signal Conditioner

Field Selectable Minuteman Setup

APD 4380 from $419

DC to DC Isolated Signal Conditoner

Field Selectable Minuteman Setup

API 4385 G from $379

DC to DC Isolated Signal Conditoner High Voltage DC Input

Field Selectable Minuteman Setup

API 4380 GHV3 from $429

DC to DC Isolated Signal Conditoner High Voltage DC Input

Field Selectable Minuteman Setup

APD HV-DC from $489

DC-DC converter with 5KV Isolation

HVI237 call for quote

IsoSplitter® Signal Splitter 1 DC Input to 2 DC Outputs

APD 4930 from $399

IsoSplitter® Signal Splitter 1 DC Input to 2 DC Outputs

APD 4393 from $589

Universal Input to DC Isolated Signal Conditioner

Field Programmable

APD 8000 from $529

Universal Input to DC Isolator/Converter V, mA, Ohms, TC, RTD

Z109REG2-1 $289

DC to DC Isolated Signal Conditioner

Field Configurable

K109UI $250 *stock item*

DC to DC Isolated Transmitter with Sink/Source Input

Field Configurable

K109S $250 *stock item*

Universal Input to 4-20 mA Loop Powered Transmitter

Field Programmable

K121 $165 *stock item*

K121-C $190 ranged to order

DuoPak® 2 Channel Isolated Signal Conditioners

APD 2000 Series from $629

Head-Mount Universal Transmitter, Isolated

Field Programmable

T121 $159 *stock item*

T121-C $179 pre-programmed to order

USB - UART TTL Converter

EASY-USB $140 *stock item*

4 Digit 4-20 mA Loop Powered Display

Field Rangeable

S315 $150 *stock item* S315-IP66 $310

DC to DC Isolated Signal Conditoner
High Voltage DC Input

DC to DC Isolated Signal Conditoner
High Voltage DC Input

IsoSplitter® Signal Splitter
1 DC Input to 2 DC Outputs

IsoSplitter® Signal Splitter
1 DC Input to 2 DC Outputs

Universal Input to DC Isolator/Converter
V, mA, Ohms, TC, RTD

K109UI $250 stock item

DC to DC Isolated Transmitter
with Sink/Source Input

K109S $250 stock item

Universal Input to 4-20 mA
Loop Powered Transmitter

K121 $165 stock item

DuoPak^® 2 Channel Isolated Signal Conditioners

T121 $159 stock item

EASY-USB $140 stock item

S315 $150 stock item
S315-IP66 $310