YSI 2700 User Manual
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YSI 2700 User Manual

Monitor and control accessory
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YSI 2700
Stirring Motor
A l l t r a d e m a r k s , b r a n d n a m e s , a n d b r a n d s a p p e a r i n g h e r e i n a r e t h e p r o p e r t y o f t h e i r r e s p e c t i v e o w n e r s .
• C r i t i c a l a n d e x p e d i t e d s e r v i c e s
• I n s t o c k / R e a d y - t o - s h i p
Artisan Scientific Corporation dba Artisan Technology Group is not an affiliate, representative, or authorized distributor for any manufacturer listed herein.
Limited Availability
Used and in Excellent Condition
Buy Today!
https://www.artisantg.com/77315-14
• We b u y y o u r e x c e s s , u n d e r u t i l i z e d , a n d i d l e e q u i p me n t
• F u l l - s e r v i c e , i n d e p e n d e n t r e p a i r c e n t e r

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Summary of Contents for YSI 2700

  • Page 1 YSI 2700 Stirring Motor Limited Availability Used and in Excellent Condition Buy Today! https://www.artisantg.com/77315-14 A l l t r a d e m a r k s , b r a n d n a m e s , a n d b r a n d s a p p e a r i n g h e r e i n a r e t h e p r o p e r t y o f t h e i r r e s p e c t i v e o w n e r s .
  • Page 2 <6,#5:63 Monitor and Control Accessory 8VHU·V#0DQXDO Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
  • Page 3 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...

  • Page 4: Table Of Contents

    Table of Contents 1. Introduction ..............................1 1.1 Product Description ..........................1 1.2 Features..............................1 1.3 Product Specifications .......................... 2 1.4 Digital Signals............................3 2. Installation ..............................4 2.1 Unpacking............................. 4 2.2 Installation ............................4 3.
  • Page 5 List of Figures Figure 1 PC Board Installation ........................4 Figure 2 Eprom Installation ........................... 5 Figure 3 Fuse Installation ..........................6 Figure 4 Pump Installation..........................7 Figure 5 Tube Routing Label......................... 8 Figure 6 JP1 Settings ............................. 9 Figure 7 Output Polarity ..........................10 Figure 8 Handshake Signals ........................

  • Page 6: Introduction

    Once delivered to the external chamber, the 2700 SELECT Sipper Tube rotates out to the chamber to aspirate a preprogrammed volume of sample. The 2700/2730 system can operate unattended for days or weeks, provided sufficient reagent supply is considered.

  • Page 7: Product Specifications

    Analog/Control • Dual selectable analog outputs • PID control • Normal or inverted TTL outputs • Allows analysis of discrete samples without initiating regulation 416# 3URGXFW#6SHFLILFDWLRQV Monitor Size: External Chamber..........0.75 x 0.75 x 0.88 inches Pump Head ............2.0 x 2.2 x 0.85 inches Pump Motor ............

  • Page 8: Digital Signals

    Ack\ signal input. Ack\ input Active low, resets Ready output, minimum width >10ms. SysErr output Active High, indicates 2700 not ready to sample. Filtrate output external sample pump control. BLK. Pump output feed/diluent pump control for Black Probe Chemistry.

  • Page 9: Installation

    #2 Phillips screwdriver, needle-nose pliers and a 5/16″ or small adjustable wrench are needed. The steps are as follows: Turn off instrument power using the switch on the rear of the 2700 case. Do not unplug the power cord.

  • Page 10: Figure 2 Eprom Installation

    BLACK Figure 2 Eprom Installation Discharge any static electricity again by touching the YSI 2700 chassis momentarily. Remove the IC U11 from its socket using a small flat-head screw-driver or pocket knife. Make sure to place the screwdriver under the IC and not the socket before you start to pry it up. Avoid bending the pins.

  • Page 11: Figure 3 Fuse Installation

    14. Next swing open the front panel of the 2700 and remove the side access plate on the left side of the 2700 near the front of the instrument. This is the area through which the 2700 Sipper Tube will move to reach the External Sample Chamber.

  • Page 12: Figure 4 Pump Installation

    20. Repower the instrument. The printer should print a heading showing 2700 configuration (single or dual channel) and the new software version (2.81). 21. Next align the Sipper Tube with respect to the 2700 Sample Chamber as you would do in 2700 Setup. Very likely this has already been done on your unit.

  • Page 13: Figure 5 Tube Routing Label

    26. Now test the alignment using the "Sipper down" command. Tighten the locknut on the inside of the 2700 and the thumb screw under the Chamber Bracket while the Sipper Tube is in the External Chamber. Use the up and down commands to retest. Press 0 to exit.

  • Page 14: Configuration

    35 seconds. You may shut off the pump at any time by exiting the Service menu. 29. The Monitor and Control Accessory is now installed. Now configure the 2700 SELECT measurement and run mode parameters as required for your application. Refer to Section 2 Setup in your 2700 SELECT USER’S MANUAL.

  • Page 15: Full Scale Concentration

    The filtrate pump control output from the YSI 2730 is provided to control a user-supplied external pump for pumping the sample from its point of origin to the 2700. The timing of this signal is the same as the purge pump of the YSI 2730 accessory and is setup inside the "Monitor" part of the RunMode menu. This option is normally not used since the 2730 monitor pump can transport most samples to the external chamber.

  • Page 16: Examples

    4.1.2 Examples Monitor Only Monitor with 2730 Control Monitor with Computer Control Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...

  • Page 17: Electrical Interface

    These "handshake signals" are nominally +5 volts for a logic 1 and ground (0 volts) for a logic 0. The "READY" signal is output from the YSI 2730 and is set to a logic 1 when the analog output signals have been updated.

  • Page 18: Auxiliary Connector / Signal List

    4.2.3 Auxiliary Connector / Signal List On the back of the YSI 2700 instrument is the 15 pin "D" type connector labeled "AUXILIARY" where the 2730 signals emanate. The following table relates the signals with the connector pin positions and cable wire colors.

  • Page 19: Software

    814# 6RIWZDUH Features specific to the YSI 2730 have been added to the Setup and Service sections of the 2700 menu structure. Figure 9 shows the new structure with the 2730 features in bold lettering. The following section briefly describes the 2730 menu options.

  • Page 20: Setup

    815# 6HWXS 5.2.1 Monitor As described in Section 2, Installation, there are six menu selections under Monitor Setup that you must consider. Briefly, they are: External Pump Purge Time..Time in seconds required to deliver fresh sample from your source to the External Sampling Chamber Station # ........Station number where the Sipper Tube will go for a monitor sample, usually station #5 the external sampling chamber...

  • Page 21: Sterilization

    If the tubing is connected to the bioreactor after sterilization, a sterile connection must be made. After sterilization the pump should be remounted onto the 2700. Refer to Section 8.1, Tubing Replacement, before installing the tubing in the solenoid valve. The antiseptic cycle must be enabled (see Section 5.2.1) and the antiseptic solution must be primed immediately after the tubing is reconnected (see...

  • Page 22: Analog /Control

    When in the monitoring mode and when the 2700 is stabilized in terms of calibration drift, you will likely want to change some of these parameters to minimize interference of calibration with monitor sampling. For example, you may elect to disable autocalibrations related to time and number of samples, then use the PreCal option under Monitor Setup.
  • Page 23 3.5 Liters. You know from previous fermentations of that the maximum consumption rate of glucose is approximately 28.5 g/L/hr. The feed pump delivery rate is 0.1 L/min. The 2700 sampling interval is 5 minutes. The lowest acceptable concentration of glucose feedstock (Cnc) is calculated as follows: Sampling Interval = SI = 5 minutes Maximum rate of change = Mrc = 28.5 g/L/hr = 0.475 g/L/min.

  • Page 24: Analog Output

    The Time-Per-Unit error (TPU) for this setup is calculated as follows: Pump rate (in seconds) = (0.1 L/min.) / (60 sec/min.) = 0.00166 L/sec. Feed Delivery Rate = Cpdlv = 20.78 g/L * 0.00166 L/sec = 0.035 g/sec. TPU = (1 / Cpdlv) * Vol TPU = (1 / 0.035) * 3.5 TPU = 101 The TPU parameter has another important function in the 2730 software.

  • Page 25: Service

    This option is used to align the external chamber with the sipper needle. When this option is selected, the sipper will swing out of the 2700 and stop above the external sample chamber. Option 2-Down will allow the sipper needle to be lowered to test external chamber alignment.

  • Page 26: Printed Setup Information

    USER’S MANUAL for details on how to get a printout of your setup. The bold type highlights the Monitor and Analog/Control sections. In the Monitor Section the 2700 is set up to monitor from station #5 (the external chamber) every 3 minutes. The purge time for the pump is 40 seconds, the flow rate is 2000 uL/Minute and no calibration is performed before (precal) the sample.

  • Page 27: Service

    The sample lines and sample pump tubings are nearer the 2700 SELECT case wall. The waste line is closest to you. The pump waste tubing contains a retainer (plastic washer) on the inlet (top) side of the pump. The sample pump tubing contains a retainer (plastic washer) and a plastic tab attached on the inlet (top) side.

  • Page 28: Solenoid Valve Tubing Replacement

    Secure the two pump housings together with the O-rings. Finally, resecure the pump body assembly to the 2700 sideplate using the two thumb screws. Reconnect the tubing as shown in Figure 3. Repower the instrument, if necessary. Enter Service mode and check pump function for proper flow direction.

  • Page 29: Troubleshooting

    Symptoms related to 2730 Monitor and Control Accessory are somewhat limited. Most problems will be related to monitor pump function and/or tubing obstructions. Refer to Section 8 (Troubleshooting) in the 2700 SELECT USER’S MANUAL as an extension of this troubleshooting section.
  • Page 30 CORRECTIVE ACTION: Check Section 8.1 and correct tubing configuration. SYMPTOM ________________________________________________________________ Monitor Station results appear to be lower than expected and excess air is observed in the 2700 SELECT sample chamber. POSSIBLE CAUSE: The 2700 Sipper Tube is not properly aligned in the vertical plane, i.e., not moving down far enough into external chamber.
  • Page 31 POSSIBLE CAUSE: Tubing routed incorrectly in solenoid valve. CORRECTIVE ACTION: Check tubing routing per Section 8.1.2. NOTE: Replace membrane if damaged by antiseptic. FOR PROBLEMS NOT IDENTIFIED IN THE ABOVE CHART CONTACT YSI TECHNICAL SUPPORT FOR ASSISTANCE. REFER TO APPENDIX B FOR PHONE, FAX AND ADDRESS INFORMATION.

  • Page 32: Schematic Diagram

    ;17# 6FKHPDWLF#'LDJUDP Figure 12 Schematic 1 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...

  • Page 33: Figure 13 Schematic 2

    Figure 13 Schematic 2 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...

  • Page 34: Parts List

    ;18# 3DUWV#/LVW REF # PART NO. DESCRIPTION 2731 Preventive Maintenance Kit 110430 PC board assembly 062428 Fuse, PCB, 2 Amp, 125V, fast act. 027709 Cable, interface 8.5.1 Monitor Pump/Solenoid Assembly Refer to reference numbers in the diagram on the following page (Figure 14). REF # PART NO.

  • Page 35: Figure 14 Monitor Pump/Solenoid Assembly

    Figure 14 Monitor Pump/Solenoid Assembly Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...

  • Page 36: External Chamber Assembly

    8.5.2 External Chamber Assembly REF # PART NO. DESCRIPTION 023013 Chamber Bracket 023024 Compression Spring 110440 Chamber 001008 Thumb Screw 061994 Thumb Nut 061700 Outlet Fitting, 10-32, 3/32″ hose 069818 Flat Washer, #6, .550″ x .031″ Figure 15 External Chamber Assembly Artisan Technology Group - Quality Instrumentation ...

  • Page 37: Appendix A - Required Notice

    <1# $SSHQGL[#$#0#5HTXLUHG#1RWLFH The Federal Communications Commission defines this product as a computing device and requires the following notice. This equipment generates and uses radio frequency energy and if not installed and used properly, may cause interference to radio and television reception. It has been type tested and found to comply with the limits for a Class A or Class B computing device in accordance with the specification in Subpart J of Part 15 of FCC Rules, which are designed to provide reasonable protection against such interference in a residential installation.

  • Page 38: Appendix B - Warranty And Shipping Information

    431# $SSHQGL[#%#0#:DUUDQW\#DQG#6KLSSLQJ ,QIRUPDWLRQ The YSI Model 2700 Analyzer is warranted for one year from date of purchase by the end user against defects in materials and workmanship, exclusive of batteries. Within the warranty period, YSI will repair or replace, at its sole discretion, free of charge, any product that YSI determines to be covered by this warranty.

  • Page 39: Cleaning Instructions

    We will contact the sender for instructions as to the disposition of the equipment. Disposition costs will be the responsibility of the sender. When service is required, either at the user's facility or at YSI, the following steps must be taken to insure the safety of our service personnel.

  • Page 40: Packing Instructions

    4315# 3DFNLQJ#,QVWUXFWLRQV 1. Clean and decontaminate items to insure the safety of the handler. 2. Complete and include the Cleaning Certificate. 3. Place the product in a plastic bag to keep out dirt and packing material. 4. Use a large carton, preferably the original, and surround the product completely with packing material.
  • Page 41 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
  • Page 42 1725 Brannum Lane Yellow Springs, Ohio 45387 USA 027424 937 767-7241 • 800 765-4974 • Fax 937 767-9353 A27424C Info@YSI.com • www.YSI.com May 00 © 1998 YSI Incorporated Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...

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