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Biotech Systec Closed-loop Vacuum Pump Controller with 3 LED Indicators for DEGASi Classic, GPC, Mico, Semi-Prep Degassers - 9000-1056

Price: £462.56


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Biotech Systec Closed-loop Vacuum Pump Controller with 3 indicators for DEGASi Classic, GPC, Mico, Semi-Prep Degassers and OEM assemblies

Product Number: 9000-1056

For use with the following degassing vacuum pumps

  • Biotech Systec ZHCR Degasser Vacuum Pump, Analytical, bottom mounted - 9000-1471
  • Biotech Systec ZHCR Degasser Dual Stage Vacuum Pump, Analytical, bottom mounted - 9000-1892
  • Biotech Systec ZHCR Degasser Dual Stage Vacuum Pump, Preparative, bottom mounted - 9000-1896 
  • Biotech Systec ZHCR Degasser Dual Stage Vacuum Pump, Analytical, side mounted - 9000-2061

For use with the Following Degassers:

  • Biotech DEGASi CLASSIC Degassers
  • Biotech DEGASi GPC Degassers
  • Biotech DEGASi Semi-Prep Degassers
  • Biotech DEGASI PLUS Series Degassers

This product is a closed-loop vacuum pump controller with 3 indicator LEDs. This controller is configured for analytical scale applications.

Zero Hysteresis / Constant Run

The Systec ZHCR (Zero Hysteresis / Constant Run) vacuum pump is designed for membrane degassing of the HPLC mobile phase. Employing a patented closedloop, micro-stepping, RPM control-strategy permits the pump to run with continuously variable speed, providing quick pull-down at high RPM, and then sustaining a consistent vacuum level at low RPM.

  • Patented control eliminates baseline fluctuations
  • Inert flow path
  • 5+ year lifetime
  • Built-in anti-backflow check valves
  • Compact

Fluctuations in detector baseline due to changes in vacuum level are eliminated by not having to repeatedly stop and start a single-speed pump. This also greatly reduces wear and noise. The brushless motor enables quiet operation and is appropriate for environments where solvent vapors may be present. Flowpaths are entirely inert and the continuously purged head design allows the pump to start into a full vacuum – vacuum will not be released in the event of a power loss.

TECHNICAL DATA

Vacuum Pump
Air Flow (no vacuum):  650 SCCM @ 400 RPM; 45 SCCM @ 60 RPM 
Vacuum Level: <40 mmHg @ 60 RPM (1 SCCM air flow)
Pump-down Time:  <1 minute (with 4 MINI degassing channels, 50cc total internal chamber volume)
Pump Head Continuous Purge Air Flow Rate:  1 SCCM, Primary; 9 SCCM, Secondary 
Wetted Materials:     Polypropylene, PTFE, EPDM Rubber 
Noise:     <52 dB (@ 50 dB ambient)
Expected Lifetime: >5 years (continuous run @ 60 RPM)
Stepper Motor – Electrical Spec.
Type: Uni-Polar, 1 Amp @ 4.6V DC / phase; 200 steps / rev. 
Drive: Micro-stepped, control current set to 425 mA / phase avg. current
Chop Frequency: Approximately 25 kHz 
Speed: Continuously Variable. Ranges from 1 RPM to 450 PRM, depending on the deviation from vacuum setpoint in closed-loop control.
Power Requirement
15-24VDC: <5 watts Typical. 10 watts peak
Overcurrent Protection Device: 1.10 Amp Hold, 2.20 Amp Trip at 20 °C
Temperature
  • <25 °C rise above ambient with ambient <50 °C in open air
  • The 5 watts of heat dissipated will cause varying temperature rise in conditions other than open air
  • The maximum rated temperature of the pump is 75 °C
Pump Control Specifications
Power Requirements:  15-24V DC; <5 watts t ff ypical, 10 watts peak.
Vacuum Sensor Calibration Accuracy (NIST Traceable): ±0.5% of reading ±2 mmHg absolute over an ambient operating temperature range of 10-35 °C.
Vacuum Validation Output: Speed: 5mV DC /  0.13 kPa (1 mmHg) absolute from 2.7 to 106.7 kPa (20 to 800 mmHg) (0.100V DC @ 2.7 kPa (20 mmHg); 4.000V DC @ 106.7 kPa (800 mmHg)).
Accuracy:  ±1.0% of reading ±0.010V DC from 20 to 800 mmHg over an ambient operating temp. range of 10-35 °C.
Pump Speed Monitor Output (Test Point on P.C. Board): Signal: 5mV DC / 1 RPM from 10 to 450 RPM (0.050V DC @ 10 RPM; 2.250V DC @ 450 RPM).
Accuracy:   ±3.0% of reading over an ambient operating temp. range of 10-35 °C.
Closed-Loop  Control Setpoint: 6.7 kPa (50 mmHg) absolute (pump runs at high RPM until near setpoint, then speed is varied to maintain a value of 6.7 kPa absolute – load independent).
LED Indicators LED 1 (Green) Power on
LED 2 (Yellow)
  • Solid on = Normal operation, vacuum level >13.3 kPa (100 mmHg)
  • Flashing on 1 sec. / off 2 sec. = Vacuum sensor signal error (Error Code 4 
  • Flashing on 1 sec. / off 1 sec. = Operational error (Codes 1-3).
LED 3 (Green) Normal operation, vacuum within acceptable operating range.
Errors Detected 1 Pumpdown Unable to reach 13.3 kPa (100 mmHg) in 5 minutes.
2 High RPM Vacuum (mmHg) × motor speed (RPM) >6000 for more than
2 min. in the running state.
3 Low RPM Motor speed <10 RPM in the running state
4 Sensor Signal Sensor signal >106.7 kPa (800 mmHg) or sensor signal <1.3 kPa (10 mmHg)
Communications RS-232 communication to a PC is available as an accessory, with enabled communication firmware and customized PC software.

Tags: Degassing Systems > Systec Vacuum Pumps and Controllers > Replacement Parts > Spare Parts Systec


  • Model: 9000-1056
  • Manufactured by: Biotech

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