Category: Chromatography | Subcategory: Ion System

PE Nelson NCI 900 Network Chromatography Interface Model NCI 902

PE Nelson NCI 900 Network Chromatography Interface Model NCI 902 Image

ITEM: 29850 In Stock

  • Free 90 Day Warranty
  • One Year Upgrade Available
  • Tested & Serviced Prior to Shipping

Or call (860) 691-2213

PE Nelson NCI 900 Network Chromatography Interface Model NCI 902 ImagePE Nelson NCI 900 Network Chromatography Interface Model NCI 902 Image

The PE Nelson NCI 900 Network Chromatography Interface Model NCI 902 is an analog-to-digital (A/D) interfaces that acquire data from a chromatograph. You may perform a run either via manual injections or with an autosampler. The data acquired from the chromatograph are stored in the NCI buffer memory. These data readings are transmitted from the NCI buffer memory to the host computer through an IEEE-488 General Purpose Instrumentation Bus (GPIB), RS-232C serial link, or Ethernet connection.

 

Features:

  • Four programmable unipolar and four programmable bipolar voltage ranges (see below for specifications). Each voltage range provides a dynamic range of 1:5,000,000 (134 dB) at a sampling rate of one point per second. When using older versions of chromatography programs, the effective range is limited to 1:1,000,000 (120 dB).
  • Two, sense-input lines (Start and Stop). The sense-input lines signal the NCI to start or stop data collection.
  • One Instrument Ready relay. The Instrument Ready relay is on whenever the NCI is ready to take data from the chromatograph.
  • Fourteen optional relays. You can program these relays from a host computer to control external devices associated with the chromatography procedure.
  • 4 MB of dynamic memory. This dynamic memory stores data and executing programs.
  • The NCI 902 contains two A/D converters. The second A/D converter allows you to collect data from two detectors during a single run. 
  • The NCI 902 front panel has membrane switches and LEDs for controlling and monitoring sampling. The membrane switches allow you to start and stop data collection. The LEDs allow you to determine if the power to the NCI is on, if the NCI is ready to start the next run, if the NCI is currently acquiring data, and if the detector data are in range.

 

Specifications:

  • Dynamic Range: 134 dB minimum, 1 V range, 1 Hz
  • Input Impedance: 10 MW Differential Input
  • Input Ranges:
    • Unipolar 
      • 0.1 V: -0.0005 to +0.0995 V
      • 1.0 V: -0.005 to +0.995 V
      • 2.0 V: -0.01 to +1.99 V
      • 10.0 V: -0.05 to 9.95 V
    • Bipolar
      • 0.1 V: -0.05 to +0.05 V
      • 1.0 V: -0.5 to +0.5 V
      • 2.0 V: -1.0 to +1.0 V
      • 10.0 V: -5.0 to +5.0 V
  • Resolution:
    • 6 nV on 0.1 Volt Scale at 10 Hz
    • 60 nV on 1.0 Volt Scale at 10 Hz
    • 120 nV on 2.0 Volt Scale at 10 Hz
    • 0.6 mV on 10 Volt Scale at 10 Hz
  • Sampling Rate: 200 Hz to 0.1 Hz
  • Maximum Gain Error: ±2.0%
  • Maximum Std. Dev. Gain Error on 1.0 V Range: ±0.01%
  • Maximum Nonlinearity: ±0.01% FS
  • Rack/Vial: Contact Closure or TTL Compatible
  • Start/Stop Inputs:
    • 0.0 V to 0.8 V = “LOW”
    • 2.8 V to 5.0 V = “HIGH”
    • Hold “LOW” at least 10 ms
    • Level Sensitive/Not Latched
  • Operating Temperature: 0° to +45°C
  • Storage Temperature: –20° to +60°C
  • Operating Altitude: 0 to 2000 meters
  • Storage Altitude: 0 to 12,000 meters
  • Relative Humidity: 20% to 80% (non-condensing)

The ALT Difference

All Items Tested to
Manufacturer Spec

More Than 12,000
Items in Stock

Up to 1-Year
Warranty

Price Match
Guarantee

50%–80%
off Retail