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Signal Link Signal Conditioner

$550.00

In Stock

Product Description

Signal Conditioner • DIN-Rail Mount • Signal Link

Multi-Function Signal Conditioner for Load Cells and Force Sensors

The Signal Link is a compact, DIN-rail signal conditioner that converts mV/V strain-gauge signals into standardized analog, digital, and relay outputs for industrial measurement and control. A single unit replaces a stack of discrete amplifiers, isolators, and transmitters: five scalable analog output ranges, MODBUS-RTU over RS-485 or USB-C, and three programmable relays for setpoint and alarm control.

Built around the high-speed AD-09 converter with selectable sampling from 10 to 7,200 Hz and resolution of approximately 400,000 counts at 3 mV/V, the Signal Link delivers laboratory-grade precision in a 1.0 in wide panel-ready enclosure. It accepts up to eight 350 ohm load cells over 4-wire or 6-wire sensing and snaps tool-free onto any standard 35 mm DIN rail. Everything is configurable from the front panel with no laptop required.

System-level Cal PLC calibration trims the entire signal chain end-to-end across five reference points, so what the load cell senses is exactly what the PLC reads. Backed by a 12-month warranty, with US-based support from Transcell's facility in Buffalo Grove, IL since 1981.

7,200 Hz

Max Sampling Rate

AD-09 high-speed converter

400K cts

Resolution

@ 3 mV/V input

8 cells

Load Cell Capacity

Up to 8 × 350 Ω

4 outputs

Analog Output Types

0-10V, ±10V, 4-20mA, ±20mA

1.0 in

Panel Width

35 mm DIN rail, tool-free

Core Capabilities

One Conditioner, Every Output

Signal Link signal conditioner side view showing all terminal connections

Universal Analog Output

Four field-selectable output modes: 0-10 V, ±10 V, 4-20 mA, and ±20 mA. User-defined force scaling with ±0.03% FS accuracy into a 1 kΩ load. Drives PLCs, indicators, DCS, and SCADA directly.

Signal Link signal conditioner top and bottom terminal connections

Dual Digital Communication

RS-485 half-duplex MODBUS-RTU daisy-chains up to 32 nodes on a single addressable bus. USB-C carries VCP for PC configuration and firmware updates. Both ports transmit continuous and demand ASCII formats simultaneously.

Signal Link front panel OLED display showing gross weight homescreen

Three Programmable Relays

Three normally-open Form-A relays switch up to 250 VAC / 30 VDC at 5 A (150 W) each. One isolated optocoupled input triggers manual operations. Four built-in process modes: Auto Fill, Manual Fill, Check-Weight, and Pass-Band.

Signal Link front panel OLED display showing 4-20mA analog output mode

System-Level Cal PLC Calibration

Cal PLC steps the live analog output through five fixed reference levels at 0, 25, 50, 75, and 100% of range. Trim the connected PLC, indicator, or DCS at each point so the entire measurement chain is calibrated end-to-end, not just the sensor stage.

Technical Features

Every Capability, On Board

High-Speed Acquisition: 10 to 7,200 Hz

The AD-09 converter with 5 V square-wave excitation samples at selectable rates up to 7,200 Hz, resolving approximately 400,000 counts at 3 mV/V. Rated input range is ±4.5 mV/V with a maximum of ±7.8 mV/V.

Smart Filtering and Stability

Layered digital filtering: simple moving average (1 to 8 samples), autoranging filter (32, 48, or 64 samples), auto-engaged FIR at 10 and 20 Hz, and zero tracking (0 to 0.002 mV/V window) keep readings rock-steady under vibration and dynamic loads.

White OLED Display, 6 Digits

64 × 48 dot-matrix white OLED shows up to six digits plus unit glyphs (lb, kg, g, kN, t) and status annunciators for center-of-zero, net/gross, and stability. Three tri-color status LEDs mirror relay outputs OUT1, OUT2, and OUT3.

Front Panel Configuration: No Laptop Required

Four-key navigation (DISPLAY, MENU, SELECT/TARE, EXIT) accesses six on-device menus: Measure, Cal Setup, V/mA Out, Dig Comm, Relay IO, and System. All parameters set directly on the device. Scan the front-panel QR code for quick access to manuals.

±5-Point Linearization

Positive and negative linearization up to five points each corrects non-linear sensor response across the full operating range. Combined with Key-In span calibration and live calibration modes for flexible commissioning in the field.

32-Node MODBUS-RTU Network

RS-485 half-duplex bus daisy-chains up to 32 Signal Link units on a single addressable line. Supports MODBUS-RTU 16/32 bit and ASCII PRT/PT2/PT5 formats at 2,400 to 57,600 baud. Fit a 120 ohm terminator at each end node.

On-Device Interface

Read It. Set It. On the Rail.

A white dot-matrix OLED and a four-key pad put live readings and the full six-menu configuration system on the front of the device, visible and adjustable without disconnecting from the panel.

Home

Gross Weight

Measure

Run-Mode Menu

Sig Type

Output Config

4-20 mA

Analog Mode

White OLED, 6 Digits

64 × 48 dot-matrix display with unit glyphs (lb, kg, g, kN, t) and status symbols for center-of-zero, net/gross, and stability. Selectable decimal placement and count-by (1, 2, or 5).

Tri-Color Status LEDs

Red, green, and orange LEDs mirror relay outputs OUT1, OUT2, and OUT3, giving operators at-a-glance process state from across the panel without reading the display.

Four-Key Navigation

DISPLAY, MENU, SELECT/TARE, and EXIT walk through all six on-device menus: Measure, Cal Setup, V/mA Out, Dig Comm, Relay IO, and System. Password lock-out available.

Process Control

Four Built-In Relay Control Modes

The Relay IO menu continuously compares gross or net weight against preset setpoints to drive three relay outputs, enabling dosing, check-weighing, sorting, and alarms directly on the device, with or without a PLC.

Mode 01

Auto Fill

Three sequential setpoints gate coarse, medium, and fine feed. Relays re-activate automatically if weight falls back.

Mode 02

Manual Fill

Same staged logic as Auto Fill, triggered from the control input and measured as the change from start weight. Outputs latch and hold.

Mode 03

Check-Weight

Classifies each load against Low, High, and Ex-High limits. Fires distinct relays for under-weight, accept, over, and reject on grading lines.

Mode 04

Pass Band

Simple in-tolerance window defined by Low and High setpoints. Green LED confirms when the measured weight sits inside the accepted band.

Wiring and Connections

Every Port, Mapped

All field wiring lands on color-keyed, detachable screw-terminal blocks split across the top and bottom sides of the module. The USB-C port is the only non-removable connector. A flat-blade tool is supplied.

Top Edge

Analog OutVo+, Vo-, Io+, Io-

USBType-C (VCP + firmware)

Load CellTEDS, ±EXC, ±SEN, ±SIG, SHIELD

Power+VIN, -VIN, PE (DC 12-30 V)

Bottom Edge

RS-485AA, BB, AA, BB (daisy-chain)

Trigger InputIN_V+, IN_V- (10-30 VDC, opto)

Relay OUT1250 VAC / 30 VDC, 5 A (red LED)

Relay OUT2250 VAC / 30 VDC, 5 A (green LED)

Relay OUT3250 VAC / 30 VDC, 5 A (orange LED)

OUT_COMCommon return for OUT1-OUT3

Where It Works

Common Applications

Filling & Batching

Hopper & Tank Weighing

Electronic Belt Scales

Check-Weighing & Sorting

PLC / SCADA Integration

Force & Press Monitoring

Material Dosing

Test Stands & R&D

Technical Data

Key Specifications

Specification	Signal Link
A/D Converter	AD-09 High-Speed
Sampling Rate	10 to 7,200 Hz (selectable)
Resolution	~400,000 counts @ 3 mV/V
Input Signal Range	±4.5 mV/V rated, ±7.8 mV/V max
Excitation	5 V square wave
Load Cell Capacity	Up to 8 × 350 Ω (4/6-wire, TEDS-ready)
Analog Output Types	0-10 V, ±10 V, 4-20 mA, ±20 mA
Analog Accuracy	±0.03% FS @ 20°C
Analog Nonlinearity	±0.002% FS
Digital Communication	RS-485 (MODBUS-RTU) + USB-C (VCP)
Network Nodes	Up to 32 daisy-chain
Relay Outputs	3 × Form-A, NO, 250 VAC / 30 VDC, 5 A
Trigger Input	1 opto-isolated, 10-30 VDC, 12 mA max
Display	64 × 48 white OLED, 6 digits, 3 LEDs
Power Supply	DC 12-30 V ±10%, ≤ 4 W, 500 mA max
Operating Temperature	-30 to +60°C (compensated -10 to +40°C)
Protection Rating	IP20
Enclosure	PA, UL 94 V-0
Dimensions (H × W × D)	3.9 in × 1.0 in × 4.6 in (100 × 25 × 117 mm)
DIN Rail	35 mm standard, tool-free snap mount
Warranty	12 months limited

Laboratory-Grade Accuracy

±0.03% FS analog output accuracy. ±0.001% FS digital nonlinearity. AD-09 high-speed converter with approximately 400,000 count resolution at 3 mV/V.

Panel-Ready Form Factor

1.0 in wide, tool-free snap mount onto standard 35 mm DIN rail. Detachable screw terminals. Stacks shoulder-to-shoulder. No fasteners required.

12-Month Warranty

12 months limited warranty. US-based support from Transcell's facility in Buffalo Grove, IL since 1981.

Category: Uncategorized

Dimensions / 3D Drawings

Note: You may need a software that can open/view STEP files.

Data Sheets

PTST50-100t-Datasheet.pdf

Interchangeable

Ask us about our OEM and Dealer Pricing

Insights

Accurate and Reliable Force Feedback Using Load Pins

Experience to Solve Your Problems

Proven product quality and performance combine with our engineering experience to solve force measurement challenges in any industry that needs load cells and related force sensing equipment.

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