CONCORD, CA (April 22, 2008) - Pacific Instruments, Inc. announces a new thermocouple scanner that breaks existing price, performance and size barriers. Model 6850 provides uniform temperature references (UTR), voltage scanner and USB 2.0 interface for up to 96 thermocouples all in a 2U (3 ½”) high, rack-mounted enclosure.
Coupled with Pacific’s PI660 software, the 6850 conditions, displays and records B, C, E, J, K, N, R, S, and T-type thermocouples. Programmable gains from 1 to 5,000 provide the highest accuracy for each thermocouple type. Each channel is digitized with 16-bit resolution at programmable rates up to 2,000 samples per second. Data output on the USB 2.0 interface may be recorded and viewed on real-time displays.
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MODEL 6850
Thermocouple / Voltage Scanner Turnkey Measurement System |
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The 6850 is available with 32, 64, or 96 input channels. Each channel has a uniform temperature reference that measures and provides the reference junction temperature to PI660 or other software that calculates thermocouple temperatures. Thermocouple wire terminates to screw-terminals that are located on removable cards at the rear of the enclosure. Low-pass filters are provided with 10 or 100 Hz bandwidth.
The scanner achieves its high accuracy by employing voltage substitution calibration. An external, NIST-traceable voltage standard is connected and provides reference voltages for gain and zero calibration. Firmware in the 6850 along with PI660 software automates the calibration process. As data is digitized, it is corrected for gain and zero variances, making the acquired data NIST-traceable and providing the highest accuracy.
The 6850 may also be used as a voltage scanner. The differential inputs have 50 Megohm input impedance and are protected to ±25 Volts differential and common mode. Full scale input sensitivity is programmable from ±2 mV to ±10 Volts. It can also be used to record the output of 4-20 mA or 0-20 mA process transducers. Programmed settings such as gain and alarm levels are stored in non-volatile memory and automatically restored when power is applied or the system reset.
Two alarms are provided with upper and lower programmable limits for each channel. The alarm limits are checked each time the channel output is digitized, providing the fastest possible response to out of limits conditions. The alarms are visible in real-time displays and in conjunction with Series 6000 digital I/O modules may be used to provide audible or visual operator warnings or control external equipment.
The 6850 is fully compatible with Pacific’s Series 6000 data acquisition and control systems. The enclosures’ USB 2.0 data and control interfaces may be connected to a Series 6000 system that will then recognize the 6850 hardware and provide the appropriate functionality for control and acquisition.
Contact
Chris Lloyd
National Sales Manager
(925) 827-9010
clloyd@pacificinstruments.com
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