800-942-0315
More

Seneca Signal Conditioners, Converters, Isolators, Transmitters
  • 1 Year Warranty
  • Hot-Swappable Design
  • Economical
  • Full I/O/Power Isolated Versions
    •
*stock item*
Normally stocked, but quantities available
may vary on a daily basis
Please call to confirm quantities and lead time
Click on PDF links below
for product information
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
Model
Input/Output
Features
Product
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

CE UL

Z109REG2-1
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

UL Listed CE logo
K109UI
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

UL Listed CE logo
K109S
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

    • CE logo EX
K121
K121

Thermocouple to DC Isolated Transmitter


Field Configurable


K109TC  $250 *stock item*

Open Datasheet
Download Datasheet
Open Installation Manual
Download Installation Manual
Click to see ALL Seneca products
Field Configurable Input
Input: Thermocouple: J, K, T, E, R, S, N, B
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

UL Listed CE logo
K109TC
K109TC

100 Ω RTD to DC Isolated Transmitter


Field Configurable


K109PT  $250 *stock item*

Open Datasheet
Download Datasheet
Open Installation Manual
Download Installation Manual
Click to see ALL Seneca products
Field Configurable Input
Input: One 100 Ω RTD, 385 Curve RTD, 2, 3, or 4 wire
–150 to 650°C, (–238 to 1202°F), 50°C min. span
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

UL Listed CE logo
K107A
K109PT

RS-485 to RS-485 or
RS-232 to RS-485
Repeaters/Isolators/Amplifiers


K107A  $175
K107B  $175 *stock item*

Open Datasheet
Download Datasheet
Open Installation Manual
Open Installation Manual
Click to see ALL Seneca products
K107A RS-485 to RS-485
Data X: One RS-485 half duplex
Data Y: One RS-485 half duplex
K107B RS-232 to RS-485
Data X: One RS-232 half duplex
Data Y: One RS-485 half duplex
  • 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

UL Listed CE logo
K107A K107B
K107A            K107B

K-SUPPLY and KBUS Power Supply
for K-Series Modules


K-SUPPLY  $99 *stock item*
KBUS  $17 *stock item*

Open Datasheet
Download Datasheet
Open Installation Manual
Download Installation Manual
Click to see ALL Seneca products
Regulated Power Distribution
Input: 19.2 to 30 VDC
Output: 19.2 to 30 VDC
  • Only 6.2 mm wide
  • Power supply distribution
  • Regulated and isolated
  • Low cost
  • DIN rail mount without tools
  • Power: any 19.2-30 VDC supply

CE logo
K107A
K-SUPPLY                 K-BUS
Input
One RTD
Selectable for Pt100, Pt500, Pt1000, Ni100
2/3/4 wire
Configurable range
Output
One isolated mA or Voltage
Sink or source mA
Configurable range

CE UL

Z109PT2-1
Z109PT2-1

AC to DC Isolated Current Measurement


Field Configurable
Z201-H  $199
Module power: 85-265 VAC/VDC
Z201  $179
Module power: 19-40 VDC, 19-28 VAC
Open Datasheet
Download Datasheet
Open Z201-H manual
Download Z201-H manual
Open Z201 manual
Download Z201 manual
Field selectable input ranges
0-5 Amps AC
0-10 Amps AC
Selectable via wiring terminal
Field selectable output ranges
0-1 V, 0-5 V, 0-10 V, 2-10 V
0-20 mA, 4-20 mA sink or source
  • Full I/O/power isolation
  • Selectable sink/source mA output
  • Mount to 35 mm DIN rail
  • Z201-H power: 85-265 VAC/VDC
  • Z201 power: 19-40 VDC, 19-28 VAC

CE

Z201-H Z201
Seneca Z201-H and Z201
Field Configurable Input
Input: One input channel connection for up to 4 (350 Ω) or
8 (1000 Ω) strain gauge load cells
4 or 6 wire
Excitation supply
Sensitivity: 1 to 64 mV/V
Switch I/O for either tare or alarm
Field Configurable Output
Output: 4-20 mA, 0-20 mA
0-5 V, 0-10 V
Modbus RTU with backplane connector system
Open Z-SG application note
Download Z-SG application note
Download Z-SG DWG CAD file
Download Z-SG 3D STP CAD file
Download Z-series LabView drivers
  • Only 17.5 mm wide
  • DIP switch configuration
  • Calibration via S117P1 or push button
  • 3-way isolation
  • Low cost
  • DIN rail mount without tools
  • Power: 10-40 VDC, 19-28 VAC

CE logo
Z-SG
Z-SG
Field Configurable Input
Input: One input channel connection for up to 4 (350 Ω) or
8 (1000 Ω) strain gauge load cells, 87 Ω minimum impedance
4 or 6 wire
Use SG-EQ4 for easy wiring of mutiple load cells
Excitation supply
Sensitivity: 1 to 64 mV/V
Switch I/O for either tare or alarm
Field Configurable Output
Output: 4-20 mA, 0-20 mA
0-5 V, 0-10 V
Modbus RTU
Configure with EASY SETUP software and standard micro-USB cable
0.01% FS accuracy class
24 bit analog-digital conversion
Upgradeable firmware
Settable sampling rate
Alarm with programmable hysteresis
Configurable resolution
Settable floating-point value
Stabilized measurement with noise filter
Download EASY SETUP software
Download Z-series LabView drivers
Download Z-SG3 3D STP CAD file
  • Only 17.5 mm wide
  • EASY SETUP software and DIP switch configuration
  • Calibration via software or push button
  • 5-way isolation
  • DIN rail mount without tools
  • Power: 10-40 VDC, 19-28 VAC

CE logo
Z-SG3
Z-SG3

Load Cell, Strain Gauge, Bridge
Sum Board / Sum Box


SG-EQ4  $85
Board only
SG-EQ4-BOXPG7  $340
Board in box
Open SG-EQ4 instructions
Download SG-EQ4 instructions
Open SG-EQ4 installation
Download SG-EQ4 installation
Input
Up to 4 strain gauges
Output
Summed signal from up to 4 strain gauges
  • Connect up to 4 strain gauges
  • For 4-wire / 6-wire load cells
  • Internal jumpers for configuration
  • Trim pots for equalized 4 wire signal
sg-eq4
SG-EQ4
sg-eq4
SG-EQ4-BOXPG7
Head terminal + 1 slot
For one 17.5mm or one 35mm wide Z-PC module
Connect power
Connect Modbus
Required for Modbus connection
DIN rail mount with screw terminals, 1 slot
Connect one 17.5 or 35mm Z-PC series module
Z-PC-DINAL1-35
Z-PC-DINAL1-35
Head terminal + 2 slots
For one or two 17.5mm wide Z-PC modules
Connect power
Connect Modbus
Required for Modbus connection
DIN rail mount with screw terminals, 2 slots
Connect one or two 17.5mm Z-PC series modules
Z-PC-DINAL2-17.5
Z-PC-DINAL2-17.5
2 slot extension terminal
For one or two 17.5mm wide Z-PC modules
Connect power
Connect Modbus
Required for Modbus connection
DIN rail mount with 2 slots
Add one or two 17.5mm Z-PC series modules
Z-PC-DIN2-17.5.jpg
Z-PC-DIN2-17.5
Input Power
110 VAC to 230 VAC, 47-63 Hz, 0.7 A, or
110 VDC to 315 VDC, 0.7 A
Output
24 VDC ±2%, 1.5 A max.
  • 1 year warranty
  • 1.5 kV isolation
  • LEDs for input power and status
  • "Power good" status relay
  • Short-circuit and over-load protection

CE

Seneca Z-SUPPLY
Z-SUPPLY

Z110 Loop Powered Isolators
1 Channel or 2 Channel


Z110S  $145 *stock item*
Z110D  $200 *stock item*

Open Datasheet
Download Datasheet
Open Installation Manual
Download Installation Manual
Click to see ALL Seneca products
Download CAD Drawing
Input
Z110S: One 4-20 mA loop
Z110D: Two 4-20 mA loops
Output
Z110S: One isolated 4-20 mA loop
Z110D: Two isolated 4-20 mA loops
  • Replaces API LPI-1
  • Replaces API LPI-2
  • Replaces API DPI-2
  • Powered by the input loop
  • 1 year warranty
  • DIN rail mount
  • 17.5 mm wide

CE
Z110S Z110D
Z110S         Z110D

RS232/USB, TTL/USB, RS485/USB Isolated Serial Converter


Seneca S117P-1  $299 *stock item*

Open S117P-1 datasheet
Download S117P-1 datasheet
Open S117P-1 installation
Download S117P-1 installation
S117P-1 Software

Download S117P-1 Software
Programming kit for
T120
T121
Z-SG
Includes
Converter box
Software mini CD (or download latest)
Adapter cable
s117p1
S117P1

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

CE logo
S315
S315
Programming Kit for K121, T120, T121
Includes
Converter
Software mini CD (or download latest)
Adapter cable (std USB cable not included)
EASY-USB
EASY-USB

Head-Mount RTD Transmitter, Non-Isolated


Field Programmable


Fits DIN Form B Heads
T120  $89 *stock item*

T120-C  $109 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 RTD
2, 3, or 4 wire
Selectable Output
Output: 4-20 mA, 20-4 mA
  • Order T120-C and specify I/O for pre-programmed model
  • 44 mm dia
  • DIN B mount with 5.8 mm (0.228" dia) center hole
  • Power: 19.2 to 30 VDC current loop

T121 CE logo
T120

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 CE logo
T121

AC Current Transmitter Loop Powered


Field Selectabe Ranges
Open Current Sensor Overview
Download Current Sensor Overview
T201  to 40A  $109 *stock item*
Open Installation Manual
Download Installation Manual

Input T201
5, 10, 15, 20, 25, 30, 35, 40 Amps AC
Output
4-20 mA
Power
5-28 VDC current loop
  • Measures AC Current
  • DIP-switch selectable ranges
  • Solid core design

CE
UL
T201
T201

Input T201DC
5, 10, 20, 40,
±5, ±10, –5-20,
–10-40 ADC
Input T201DC100
10, 25, 50, 100,
±5, ±10, –5-20,
–10-40 ADC
Output
4-20 mA
Power
5-28 VDC current loop
  • Measures DC Current
  • DIP-switch selectable ranges
  • Solid core design

CE
UL
T201DCH 50
T201DC 40 Amp DC
T201DC100
T201DC 100 Amp DC

Input T201DCH
25, 50 ADC/AAC
Input T201DCH100
50, 100 ADC/AAC, ±50, ±100 ADC
Input T201DCH300
150, 300 ADC/AAC, ±150, ±300 ADC
Output
0-10 VDC
Powered by
10-28 VDC
  • Hall Effect measures AC or DC
  • DIP-switch selectable ranges
  • Solid core design
CE
UL
T201DCH 50
T201DCH 50 Amp
T201DCH100
T201DCH 100, 300 Amp

Input T201DCH50-LP
50 ADC/AAC, ±50 ADC
Input T201DCH100-LP
50, 100 ADC/AAC, ±50, ±100 ADC
Input T201DCH300-LP
150, 300 ADC/AAC, ±150, ±300 ADC
Output
4-20 mA
Power
9-28 VDC current loop
  • Hall Effect measures AC or DC
  • DIP-switch selectable ranges
  • Solid core design
CE
UL
T201DCH50-LP
T201DCH 50 Amp
T201DCH100-LP
T201DCH 100, 300 Amp

DIN Rail Adapter for T201 Current Sensors


A-DIN-T201  $19 *stock item*

No datasheet
Plastic DIN Rail adapter
Fits Seneca T201 current sensors
Mount current sensor on a standard 35 mm DIN rail
seneca-a-din-t201.jpg
seneca-a-din-t201-clip.jpg
A-DIN-T201

Full Website