The 618 is a Legacy product and is not recommended for new designs. The lead time for the 618 may be as long as 12 weeks and may require a minimum quantity order. Please call for availability.
Description
The Sensoray Models 618/19 offer a cost-effective way to acquire sensor data for any PCI bus system. They feature 16-bit resolution from 8 or 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 618/19 adapter boards plug directly into any PCI 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 37-conductor flat cable and remotely mountable screw- termination board, either model 7409TB or model 7409TDIN with DIN rail mounting hardware.
Calibration
Models 618/19 automatically self-calibrate 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 | Low-Level Programming of 618/19
Software and Manuals
The 2518 and 2519DIN are supplied with the necessary Ethernet software. An optional data logging program, QuickSense, allows easy channel definition and data readback.
Specifications
| Input resistance |
1000 M ohms |
| 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 |
PCI |
| Input Power |
5 volts at 100 mA | 12 volts at 35 mA |
| For Sensor Types, Resolution, Range and Codes click here |
Images and Mechanical Drawings
Prices
| Model 618 |
8 channel Smart A/D |
Please call for availability |
| Model 619 |
16 channel Smart A/D |
Please call for availability |
| Model 7409TB |
Small termination board |
Qty. 1 $65 |
Qty. 2-9 $59 |
| Model 7409TC |
Large termination board |
Qty. 1 $105 |
Qty. 2-9 $95 |
| Model 7409TDIN |
7409TC with DIN mounting |
Qty. 1 $140 |
Qty. 2-9 $125 |
| Model 7409C |
18” interconnect cable |
Qty. 1 $14 |
Qty. 2-9 $12 |
| Model 7409C1 |
1 meter interconnect cable |
Qty. 1 $28 |
Qty. 2-9 $25 |
| Model 7506TDIN |
40 contact terminal board |
Qty. 1 $79 |
Qty. 2-9 $79 |
| Model QuickSense |
Data logging program |
Qty. 1 $195 |
Qty. 2-9 $195 |
