Potentiometer to Analog Signal Conditioners, Converters, Isolators, Transmitters, Alarms
- 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
Product brochure
Options & accessories
Regulatory compliance
Click on PDF links below
for product information
Reference Info
Ground Loops
RFI/EMI
LoopTracker and Output Test
Sink vs Source
Applications
Manual burner control
Motor load control
Milling machine feed
Phase separtor water level
Damper position
Phase separtor water level
Fail safe valve control
Municipal water tower level
Blower louver position
Steam Condensate Monitoring
Ground Loops
RFI/EMI
LoopTracker and Output Test
Sink vs Source
Applications
Manual burner control
Motor load control
Milling machine feed
Phase separtor water level
Damper position
Phase separtor water level
Fail safe valve control
Municipal water tower level
Blower louver position
Steam Condensate Monitoring
How to select your product
- Open pdf datasheet for your model
- Select model, range, units, options, accessories
- Contact us if you need assistance
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Model
Input/Output
Features
Product
Potentiometer Input Alarm Trips
Factory Configured
APD 1800 from $379
APD 1820 from $399
Open Datasheet
Download Datasheet
Any full-range potentiometer
0-100 Ω to
0-1 Mega Ω
APD 1800 Single Alarm Trip
Dual SPDT contact sets
Standard: HI alarm, non-latching, normal acting
See data sheet for alarm options
APD 1820 Dual Alarm Trip
2 independent SPDT contact sets
Standard: HI/LO alarms, non-latching, normal acting
See data sheet for alarm options
0-100 Ω to
0-1 Mega Ω
APD 1800 Single Alarm Trip
Dual SPDT contact sets
Standard: HI alarm, non-latching, normal acting
See data sheet for alarm options
APD 1820 Dual Alarm Trip
2 independent SPDT contact sets
Standard: HI/LO alarms, non-latching, normal acting
See data sheet for alarm options
- User adjustable setpoint(s)
- User adjustable deadband(s)
- 8 Amp SPDT contacts
- Input LoopTracker LED
- Alarm status LEDs
- Alarm options: LO, HI/HI, LO/LO, band alarm
- Optional reverse acting
- Optional latching alarms
- Push to test/reset
- Remote push to test/reset
- Full I/O/power isolation
- Removable plugs
- DIN rail mount without tools
- Universal power 85-265 VAC, 60-300 VDC
- D option for 9-30 VDC, 10-32 VAC power
APD 1800, APD 1820
Potentiometer to DC Isolated Signal Conditioner
Factory Configured
API 4003 G I from $349
Open Datasheet
Download Datasheet
Input range
Any full-range potentiometer
0-100 Ω to 0-1 Mega Ω
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
Any full-range potentiometer
0-100 Ω to 0-1 Mega Ω
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 4003
- 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 4003 GI
Potentiometer to DC Isolater/Converter
Custom application: 100-900 Ohms to 0-20 mA
TX-4003 (74614) call for price
Open Datasheet
Download Datasheet
TX-4003 (74614)
Do not substitute with API-4003 G
Input range
100 to 900 Ohms
Output range
0-20 mA sinking
Do not substitute with API-4003 G
Input range
100 to 900 Ohms
Output range
0-20 mA 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-4003Potentiometer to DC Isolated Signal Conditioner
Factory Configured
APD 4003 from $389
Open Datasheet
Download Datasheet
Input range
Any full-range potentiometer
0-100 Ω to 0-1 Mega Ω
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
Any full-range potentiometer
0-100 Ω to 0-1 Mega Ω
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
- Removable plugs
- I/O LoopTracker LEDs
- 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
APD 4003
Potentiometer to DC Isolated Signal Conditioner
Field Selectable Minuteman Setup
API 4008 G from $359
Open Datasheet
Download Datasheet
Any full-range potentiometer
0-100 Ω to 0-1 Mega Ω
18 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
0-100 Ω to 0-1 Mega Ω
18 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 4008 G
Potentiometer to DC Isolated Signal Conditioner
Field Selectable Minuteman Setup
APD 4008 from $399
Open Datasheet
Download Datasheet
Any potentiometer
0-100 Ω to 0-1 Mega Ω
0 to 90% offset capable
Can use partial potentiometer ranges
18 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
0-100 Ω to 0-1 Mega Ω
0 to 90% offset capable
Can use partial potentiometer ranges
18 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
- Removable plugs
- I/O LoopTracker LEDs
- 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
APD 4008
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
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
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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
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
IsoSplitter
®
Signal Splitter
1 Potentiometer Input to 2 DC Outputs
Factory Configured
APD 3393 from $609
Open Datasheet
Download Datasheet
Use any full range 100 Ω to 1 MΩ potentiometer
Specify output range for each channel
2 independent output channels
0-1 V to 0-20 V
±1 V to ±10 V
0-1 mA to 0-25 mA, 4-20 mA
Specify output range for each channel
2 independent output channels
0-1 V to 0-20 V
±1 V to ±10 V
0-1 mA to 0-25 mA, 4-20 mA
- One potentiometer input
- Two isolated DC output channels
- Selectable sink/source mA output
- 20 V output loop power supplies
- I/O LoopTracker LEDs
- 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 3393 Potentiometer IsoSplitter
DuoPak ® 2 Channel Isolated Signal Conditioners
Factory Configured
APD 2000 Series from $629
Specify input range for each channel
APD 2003 Ch1: DC mV/V/mA Ch2: Potentiometer
APD 2013 Ch1: RTD Ch2: Potentiometer
APD 2033 Ch1: Potentiometer Ch2: Potentiometer
APD 2035 Ch1: Potentiometer Ch2: Strain gauge
APD 2036 Ch1: Potentiometer Ch2: AC mV/V/mA
APD 2037 Ch1: Potentiometer 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
APD 2003 Ch1: DC mV/V/mA Ch2: Potentiometer
APD 2013 Ch1: RTD Ch2: Potentiometer
APD 2033 Ch1: Potentiometer Ch2: Potentiometer
APD 2035 Ch1: Potentiometer Ch2: Strain gauge
APD 2036 Ch1: Potentiometer Ch2: AC mV/V/mA
APD 2037 Ch1: Potentiometer 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 Potentiometer
Analog To Resistance Converter
Factory Configured
ATR167 call for quote
Open Datasheet
Download Datasheet
Specify input type and range
RTD
Thermocouple
Frequency to 5kHz
Pulse input from proximity sensor
Millivolt/Volts
Potentiometer or resistance
Specify output range
Potentiometer: 1k, 2k, 5k, 10k, 20k, 50k, 100k, 200k, custom
RTD
Thermocouple
Frequency to 5kHz
Pulse input from proximity sensor
Millivolt/Volts
Potentiometer or resistance
Specify output range
Potentiometer: 1k, 2k, 5k, 10k, 20k, 50k, 100k, 200k, custom
- High resolution true analog output
- 3-wire pot or 2-wire variable resistor output simulation
- Front zero and span pots
- Output level LED
- Full I/O/power isolation
- Universal power options: 8 VDC to 280 VAC
-
Convert a thermocouple to RTD signal to
match dissimilar equipment - Automatic gain control
ATR167
Analog To Potentiometer Converter
Factory Configured
ATP 168 call for quote
Open Datasheet
Download Datasheet
Specify input type and range
RTD
Thermocouple
Frequency to 5kHz
Pulse input from proximity sensor
Millivolt/Volts
Potentiometer or resistance
Specify output range
Potentiometer: 1k, 2k, 5k, 10k, 20k, 50k, 100k, 200k, custom
RTD
Thermocouple
Frequency to 5kHz
Pulse input from proximity sensor
Millivolt/Volts
Potentiometer or resistance
Specify output range
Potentiometer: 1k, 2k, 5k, 10k, 20k, 50k, 100k, 200k, custom
- Convert a signal to a potentiometer output
- 3-wire pot or 2-wire variable resistor output simulation
- 8 bit output resolution (255 count)
- Front zero and span pots
- Output level LED
- Full I/O/power isolation
- Universal power options: 8 VDC to 280 VAC
-
Replace mechanical pot used for control of
existing machinery - Automatic control of instrument gain or offset
-
Provide programmable adjustment for delays,
filters or time constants.
ATP168
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
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)
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
Input: 4-20 mA
Display: 4 digit red LED
- 1/8 DIN panel mount or IP66 housing
- Scaleable 4 digit display
S315
