Seneca Signal Conditioners, Converters, Isolators, Transmitters

  • 1 Year Warranty
  • Hot-Swappable Design
  • Economical
  • Full I/O/Power Isolated Versions Available

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How to Order

  1. Select a model
  2. See data sheet for ordering info and power options
  3. Request a price via phone, chat, or email
  4. Stock to 3 week typical lead time (USA customers)
  5. To place your order
Model
Input/Output
Features
Product

DC to DC Isolated Signal Conditioner


Field Configurable


K109UI  $169 *more coming*

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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  $169 *in stock*

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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  $149 *1 in stock*

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Field Programmable Input
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
  • Low cost
  • DIN rail mount without tools
  • Powered by 4-20 mA loop

  • CE logo new EX
K121
K121

Thermocouple to DC Isolated Transmitter


Field Configurable


K109TC  $169 *in stock*

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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  $169 *in stock*

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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  $159
K107B  $159 *in stock*

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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  $89 *in stock*
KBUS  $15 *in stock*

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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
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-SG 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
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
Head terminal + 1 slot 35mm DIN rail bus system
For Z-PC Line
Required for Modbus connection
DIN rail mount with screw terminals, 1 slot
Connect one Z-PC series module
Connect power
Connect Modbus
Z-PC-DINAL1-35
Z-PC-DINAL1-35
Head terminal + 2 slot 35mm DIN rail bus system
For Z-PC Line
Required for Modbus connection
DIN rail mount with screw terminals, 2 slots
Connect one or two Z-PC series modules
Connect power
Connect Modbus
Z-PC-DINAL2-17.5
Z-PC-DINAL2-17.5
2 slot 35mm DIN rail bus connector
For Z-PC line
DIN rail mount with 2 slots
Connect one or two 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
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
Z110SZ110S Z110D
Z110D

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


Seneca S117P-1  $260 *1 in stock*

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  $139 *in stock*
S315-IP66  $300

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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 new!
S315
S315
Programming kitK121
K121
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 *in stock*

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Programmable
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
  • EASY-USB configuration
  • Low cost
  • DIN B mount with 5.8 mm (0.228" dia) center hole
  • Power: 19.2 to 30 VDC current loop

T121 CE logo new
T120

Head-Mount Universal Transmitter, Isolated


Field Programmable


Fits DIN Form B Heads
T121  $159 *in stock*

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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

T121 CE logo new
T121

AC Current Transmitter Loop Powered


Field Selectabe Ranges
Open Current Sensor Overview
Download Current Sensor Overview
T201  to 40A  $99 *in stock*
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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

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