The 718 is a Legacy product and is not recommended for new designs. The lead time for the 718 may be as long as 12 weeks and may require a minimum quantity order. Please call for availability.
Sensoray Models 718/19 offer a cost-effective way
to acquire sensor data for any Compact PCI system. It features 16-bit
resolution from 8 channels 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 718/19 adapters plug directly into any 3U slot of a Compact PCI 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 718/19 automatically self- calibrates 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 718 comes equiped with an SDK listed below. 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 |
Compact PCI |
| Input Power |
5 volts at 100 mA | -12 volts at 45 mA |
| For Sensor Types, Resolution, Range and Codes click here |
Images and Mechanical Drawings
Prices
| Model 718 |
8 channel Smart A/D |
Please call for availability |
| Model 719 |
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 $72 |
| Model QuickSense |
Data logging program |
Qty. 1 $195 |
Qty. 2-9 $195 |
