Potentiometer to Analog Signal Conditioners, Converters, Isolators, Transmitters, Alarms

• Lifetime Warranty on API Modules
• LoopTracker ^® 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

Literature and Links

API product brochure
Options & accessories
Cross reference
Regulatory Compliance page

UL Approvals

API modules USA
API modules Canada

APD modules USA
APD modules Canada

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

How to Order

1. Select a model
2. See data sheet for ordering info and options
3. Note that options affect pricing
4. Request a quote via chat or call us
5. 2-5 day typical lead time + shipping time
6. 5-10 day lead time for quantities of 5 or more + shipping time
7. To place your order

• Call 800-942-0315 for credit card order
• Find your authorized representative
• Call us to find your local distributor
• Set up an account to use a purchase order
• Outside the USA?

Potentiometer Input Alarm Trips

Factory Configured

APD 1800  from $319
APD 1820  from $339

Open Datasheet
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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

• 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

Potentiometer to DC Isolated Signal Conditioner

Factory Configured

API 4003 G I  from $339

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

• Hot-swappable plug-in design
• ReplacesAction 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)

Potentiometer to DC Isolated Signal Conditioner

Factory Configured

APD 4003  from $319

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

• Removable plugs
• I/O LoopTracker LEDs
• Output test button
• Full I/O/power isolation
• Selectable output sink/source
• 20 V output loop power supply
• Universal power 85-265 VAC, 60-300 VDC
• D option for 9-30 VDC, 10-32 VAC power

Potentiometer to DC Isolated Signal Conditioner

Field Selectable Minuteman Setup

API 4008 G  from $349

Open Datasheet
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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

• 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)

Potentiometer to DC Isolated Signal Conditioner

Field Selectable Minuteman Setup

APD 4008  from $339

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

• Minuteman one-minute setup
• Removable plugs
• I/O LoopTracker LEDs
• Output test button
• Full I/O/power isolation
• Selectable output sink/source
• 20 V output loop power supply
• Universal power 85-265 VAC, 60-300 VDC
• D option for 9-30 VDC, 10-32 VAC power

Universal Input to DC Isolated Signal Conditioner

Field Programmable

APD 8000  from $459

*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 output sink/source
• 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

IsoSplitter ^® Signal Splitter
1 Potentiometer Input to 2 DC Outputs

Factory Configured

APD 3393  from $539

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

• 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

DuoPak ^® 2 Channel Isolated Signal Conditioners

Factory Configured

APD 2000 Series  from $569

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

• 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

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

• 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

Typical applications include

• Convert a thermocouple to RTD signal to match dissimilar existing equipment
• Automatic gain control

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

• 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

Typical applications include

• Replace mechanical pot used for control of existing machinery
• Automatic control of instrumentation gain or offset
• Provide programmable adjustment for delays, filters or time constants.

Head-Mount Universal Transmitter, Isolated

Field Programmable

Fits DIN Form B Heads

T121  $159 *stock item*

Open Datasheet
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Open Installation Manual
Download Installation Manual
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Programmable
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
• EASY-USB configuration
• I/O isolation
• Low cost
• DIN B with 5.8mm (0.228"dia) center hole
• Power: 7 to 30 VDC current loop

USB - UART TTL Converter

EASY-USB  $109 *stock item*

Open Datasheet
Download Datasheet
Open Installation Manual
Download Installation Manual
EASY-USB Software Link

Programming kitK121
K121

Includes
Converter
Software mini CD (or download latest)
Adapter cable (std USB cable not included)

4 Digit 4-20 mA Loop Powered Display

Field Rangeable

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

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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