Ref: DA90

Screw-on strain sensor - 100 µm/m - IP65 - optional amplifier

Type: strain sensor;
Measuring range : 100 µm/m
Signal output: 1,5mV/V, 0-10V, 4-20mA
dimensions: 78mm x 40mm x15mm;
material: tool steel, zinc-plated;
connection: 5m 2 x 2 x 0,25 PUR;
weight: 170 g
Mounting : 4 bolts M6
Operating temperature: -20 / +85 °C
Voltage input: 1...10 VDC or 14..30 VDC

Introduction

The strain sensor DA90 is suitable for strain and force measurement on machine elements under rough conditions. The strain on the surface of the constructional element is measured by the strain sensor due to the bolted-assembly.

The connection cable is protected by a non-crushable spiral tube. The temperature behavior and conversion factor depend on the geometrical and material pairing of sensor and component. The sensor is calibrated by subjecting the component to a known force.

The measuring range is 100µm/m. The strain gage is wired as quarter bridge. Rated output is 1,5mV/V. The operating temperature range is -20 à +85°C. The excitation voltage ranges 1 to 10 VDC (nominal : 5VDC). Available with embedded amplifier with 4-20mA and 0-10VDC output in option

Specifications

Model	Output	Offset	Voltage input
DA90	1,5mV/V	0 mV/V	1..10VDC
DA90e 0-10	0-10 VDC	0V	14..30VDC
DA90e 0-10-5	0-10 VDC	5V	14..30VDC
DA90e 4-20	4-20mA	4mA	14..30VDC
DA90e 4-20-12	4-20mA	12mA	14..30VDC
DA90i 0-10	0-10 VDC	0V	14..30VDC
DA90i 0-10-5	0-10 VDC	5V	14..30VDC
DA90i 4-20	4-20mA	4mA	14..30VDC
DA90i 4-20-12	4-20mA	12mA	14..30VDC

DA90e : low-pass filter: 0-100 Hz, with threshold detection DA90i : low-pass filter : 0-25 kHz, without threshold detection

Dimensions

Installation

Installation is done quite simply by screwing the sensor with 2 screws M10 on an even material surface.

The DA90e / DA90i onboards an integrated electronic GSV-15L / GSV-6L which provides an output signal 0-10V or 4...20 mA proportional to the applied force on the constructional element. The electronic GSV-15L offers a digital input for automatic zero adjustment, a digital input for autoscale and a digital output as threshold switch. The Scaling can be completed at part load (5% steps). The GSVL-6L provides high performance signal conditionning, with up to 25 kHz bandwidth.