Enciris Technologies - Sensoray Products Division :: Analog I/O boards :: Model 7419

ENCIRIS TECHNOLOGIES - SENSORAY PRODUCTS DIVISION

Sensoray Products

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Model 7419 | Analog to Digital Converter

Features

Supports thermocouples, RTD’s, strain gauges, voltage in, 4-20 mA, thermistors, and resistors
16 differential input channels plus sensor excitation
Each channel is software programmable for sensor type, gain, low-pass filtering, scan rate
Auto-calibration eliminates trimpots
Low power consumption

Description

The Sensoray Models 7419 offer a cost-effective way to acquire sensor data for any STD bus system. They features 16-bit resolution from 16 channels, each individually programmable for a different sensor type. Analog- to-digital conversion is performed in under 22 milliseconds, providing 45 channels per second scan rate.

The 7419 adapter boards plug directly into any STD bus computer. Linearization, calibration, and sensitivity are software programmable, eliminating trim potentiometers and the need for board access. Sensor field wiring is accomplished with a 40-conductor flat cable and remotely mountable screw- termination board, either model 7409TB or model 7409TDIN with DIN rail mounting hardware.

Calibration
Models 7419 self-calibrates automatically by measuring internal precision references. Reference data is stored in EEPROM so the adapter board may be easily interchanged. Signal conditioning is provided for thermistors, RTD’s, thermocouples, strain and pressure, resistance and voltage inputs. Standard correction for nonlinear sensors is built in. Custom compensation can be down loaded.

Excitation
A pulsed constant-voltage source is provided for strain and pressure sensors. A pulsed constant-current source is provided for resistive sensors. Lead loss errors from RTD’s, thermistors, and resistors are eliminated with the use of a four-wire circuit.

An on-board microprocessor continually scans the active sensor channels. Each channel is amplified, digitized, filtered, converted to engineering units, and stored in on-board memory. This process is independent of host CPU activity.

Application Notes
Thermocouples >> Lead loss errors >> Typical sensor connections

Software and Manuals
7419 Instruction Manual >> Released 2/1/99
SDK18 (32-bit DLL) >> Released 5/1/03

Model 7418/7419 Board Layout

7418/19 details

General Specifications

Input resistance

1000 Mohms

Max. input voltage

63 VAC rms

CMMR

95 db min

Max. command mode

+/- 5 volts

A/D converter

16-bit integrating

Conversion time

22 mS per channel

A/D scan rate

45 samples/sec

Operating temperature

-25°C to 85°C

Interface

STD 80

Input power

5 volts at 100 mA

Sensor Types, Resolution, Range and Codes

Sensor connector pinout

Details

SKU	SKU16148
Weight	300.00 g
Single item price(ex. VAT):	Contact us for pricing!

	Contact us for availability

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Accessories

	Model 7409TB \| Termination Board
	Model 7409TC \| Termination Board
	Model 7409TDIN \| Termination Board
	7409C \| Cable: 40 conductor, 18” flat cable
	7409C1 \| Cable: 40 conductor, 1 meter flat cable for connection to analog signals