Hampshire Controls CA5000-N Operating Instructions Manual
  1. Manuals
  2. Brands
  3. Hampshire Controls Manuals
  4. Measuring Instruments
  5. CA5000-N
  6. Operating instructions manual

Hampshire Controls CA5000-N Operating Instructions Manual

Liquid nitrogen backup system
Hide thumbs
Table of Contents

Advertisement

Quick Links

Download this manual
CA5000-N
Liquid Nitrogen Backup System
O
PERATING
I
NSTRUCTIONS
MANUAL
HAMPSHIRE
CONTROLS
CORPORATION
ONE GROVE STREET / P.O. BOX 516, DOVER, NEW HAMPSHIRE USA 03821
TEL. (603) 749-9424 FAX (603) 749-9433
U.S. TOLL FREE (866) 496-9424
WEB SITE:
http://www.hampshirecontrols.com
E-MAIL:
sales@hampshirecontrols.com

Advertisement

Table of Contents
loading
Need help?

Need help?

Do you have a question about the CA5000-N and is the answer not in the manual?

Questions and answers

Related Manuals for Hampshire Controls CA5000-N

Summary of Contents for Hampshire Controls CA5000-N

  • Page 1 CA5000-N Liquid Nitrogen Backup System PERATING NSTRUCTIONS MANUAL HAMPSHIRE CONTROLS CORPORATION ONE GROVE STREET / P.O. BOX 516, DOVER, NEW HAMPSHIRE USA 03821 TEL. (603) 749-9424 FAX (603) 749-9433 U.S. TOLL FREE (866) 496-9424 WEB SITE: http://www.hampshirecontrols.com E-MAIL: sales@hampshirecontrols.com...

  • Page 3: Table Of Contents

    CA5000-N Liquid Nitrogen Backup System Operating Instructions TABLE OF CONTENTS SAFETY WARNINGS ..................2 Unpacking Information ..................4 Tools & Materials Required for Installation ............4 Introduction ......................5 Features ....................... 5 Specifications ....................6 Installation......................7 Interconnections ................... 7 Sensor Probe ....................

  • Page 4: Safety Warnings

    The user assumes all risk and liability associated with the end use of this product. Cylinders that supply liquid nitrogen must be used to provide proper CA5000-N Liquid Nitrogen Freezer Backup System operation. Do not use high pressure nitrogen gas cylinders.
  • Page 5 POWER cord and the CONTROL CABLE must be disconnected, either on one end or the other. Place the CA5000-N Liquid Nitrogen Freezer Backup System BVM in a secure, stable location with easy access to the POWER cord and CONTROL CABLE connections.

  • Page 6: Unpacking Information

    CA5000-N Liquid Nitrogen Backup System Operating Instructions Unpacking Information The CA5000-N Liquid Nitrogen (LN2) Backup System is shipped in a single custom box. Please check the carton for the following: CA5000 Controller: alarm display module  CA5000 Battery-Valve Module (BVM) ...

  • Page 7: Introduction

    -175 °C. The CA5000-N is simple to operate. Plug in the CA5000-N, place the temperature probe in the freezer chamber to be monitored, and the CA5000 will display the temperature at that location.

  • Page 8: Specifications

    CA5000-N Liquid Nitrogen Backup System Operating Instructions SPECIFICATIONS Table 1: CA5000-N LN2 Freezer Backup System Specifications CA5000-N Liquid LN2 Freezer Backup System Backup Time (180-L LN2 cylinder) >48 hours at -60 ºC setpoint Liquid Nitrogen (LN2) Supply Pressure 18 - 24 psi (20 ºC) Backup Temperature Setpoint Range -150 ºC to -40 ºC...

  • Page 9: Installation

    Hampshire Controls’ instructions, by a qualified refrigeration technician, or other qualified personnel, in compliance with local, national, or regional regulations. Maintaining the safety of ULT freezer while installing the CA5000-N LN2 Freezer Backup System, and when the installation is complete, is the responsibility of the installer.

  • Page 10: Probe Installation

    CA5000-N LN2 Freezer Backup System will perform as expected. However, if the separation between the two temperatures is greater than 5 ºC, then the CA5000-N LN2 Freezer Backup System Controller and the Type T Thermocouple Temperature Probe should be returned to Hampshire Controls for temperature recalibration.

  • Page 11: Door Safety Switch

    CA5000-N Liquid Nitrogen Backup System Operating Instructions the ULT freezer. The output from the LN2 delivery tube within the ULT freezer should be located near the CA5000 temperature probe, but the LN2 flow should be directed away from the temperature probe and away from the freezer door.

  • Page 12: Door Switch, Relay Control Cable, Power

    CA5000-N Liquid Nitrogen Backup System Operating Instructions BVM FRONT VIEW BVM LEFT SIDE VIEW Pressure Relief Valve Visual LED indicators display system status: BATTERY VOLTAGE: is a 2-color LED.  Green indicates that the battery and charger are operating normally.

  • Page 13: Operational Check

    FRONT PANEL DISPLAY CA5000-N Operating Mode Instructions CA5000-N Liquid Nitrogen Backup System can be set in one of two functional modes: Operating Mode and Programming Mode. In Operating Mode, the CA5000 Controller displays the Type T Thermocouple Probe temperature and provides alarms and outputs based upon user- specified settings.

  • Page 14: Other Alarms

    Hi (High Alarm Setting). The STATUS LED flashes green when the temperature is in-range. The CA5000-N will not alarm until the out-of-range state has continued for the specified Ad (Alarm Delay Period). The Ad (Alarm Delay Period) prevents nuisance alarms such as those that might occur when opening the ULT freezer door when the probe is too close to the door.

  • Page 15: Ca5000-N Programming Mode Instructions

    The CA5000-N functions as a freezer temperature monitor, a ULT freezer coolant injection device, and an audio, visual, and output relay alarm system. The CA5000-N goes into alarm mode when the temperature sensed by the type T thermocouple probe exceeds the Hi (High Alarm Rev.
  • Page 16 Ad (Alarm Delay Period) – a delay (minutes) after the temperature first exceeds the Hi (High Alarm Setting) before the CA5000-N goes into alarm mode, Rd (Relay Delay Period) – an additional delay (minutes) after the temperature sensed by the type T thermocouple probe exceeds the SP (Setpoint) before the LN2 coolant injection valve and SPDT output relays are engaged, and SIL (Alarm Silence or Mute Period) –...

  • Page 17: Detailed Description Of Available Programming Parameters

    In Operating Mode, the ALARM will activate if the CA5000 temperature probe indicates a temperature greater than or equal to the Hi (High Alarm Setting) ºC. The Hi (High Alarm Setting) can be set between -200 ºC and 50 ºC. The CA5000-N Hi (High Alarm Setting) default setting is -70 ºC. SETPOINT/UP HI/MUTE/PROG.

  • Page 18: Rd (Relay Delay Period)

    CA5000-N Liquid Nitrogen Backup System Operating Instructions rd (Relay Delay Period) The rd (Relay Delay Period) delays activation of both the CA5000 BVM LN2 injection valve and the CA5000 Controller output RELAY. The rd (Relay Delay Period) may be set from 0 to 30 minutes.

  • Page 19: Ln2 Control Parameter

    CA5000-N Liquid Nitrogen Backup System Operating Instructions LN2 Control Parameters SP (Setpoint) The SP (Setpoint) is the temperature (ºC) at which LN2 will be injected into the ULT freezer or other target cabinet. The SP (Setpoint) range is from the Hi (High Alarm Setting) up to +40°C. Note that if the SP (Setpoint) is encountered, activation of the LN2 injection valve is delayed by the rd (Relay Delay Period).

  • Page 20: Off (Off Time)

    CA5000-N Liquid Nitrogen Backup System Operating Instructions OFF (Off Time) The OFF (Off Time) is the time interval (seconds) between LN2 injections. The OFF (Off Time) may be set from 10 to 900 seconds. The CA5000 default OFF (Off Time) is 40 seconds.

  • Page 21: Pur (Purge)

    CA5000-N Liquid Nitrogen Backup System Operating Instructions Pur (Purge) The Pur (Purge) control activates the LN2 injection valve. Use the Pur (Purge) to manually clear the LN2 delivery tube of high-pressure gas and air when changing LN2 tanks, for safety purposes, or maintenance purposes.

  • Page 22: Cst (Ln2 Started 'Cst' Minutes Ago)

    CA5000-N Liquid Nitrogen Backup System Operating Instructions CSt (LN2 Started ‘CSt’ Minutes Ago) The CSt (LN2 Started ‘CSt’ Minutes Ago) reports the number of minutes since the start of the most recent LN2 injection into the ULT freezer or target cabinet. The CSt (LN2 Started ‘CSt’ Minutes Ago) value is reset to zero by pressing the ALARM RESET button.

  • Page 23: All Parameters And Settings

    CA5000-N Liquid Nitrogen Backup System Operating Instructions All Parameters and Settings Table 3: CA5000-N LN2 Freezer Backup System – All Parameters and Settings Low Limit High Limit Factory Unit Resets? Standard Alarm Parameters Default High Temperature Alarm Limit -200 °C...

  • Page 24: Periodic Maintenance

    After 3 years (36 months) of use, replace the internal battery in the CA5000 BVM. Replace the  battery with a Hampshire Controls’ recommended battery only (p/n 68112 CA5000 Battery, 12 V – 12 Ah, Lead Acid, Rechargeable). Installation should be performed only by a qualified service technician.

  • Page 25: Replacement Parts

    Replacement Parts Table 4: CA5000-N LN2 Freezer Backup System Replacement Parts All replacement parts are exclusively sold by, and must be ordered from, Hampshire Controls. Part replacement, and any repairs, must be performed only by a qualified service technician. Replace the battery with a Hampshire Controls’...

  • Page 26: Troubleshooting Guide

    CA5000 Freezer Backup System will perform as expected. However, if the separation between the two temperatures is greater than 5 ºC, then the CA5000 Controller and the Type T Thermocouple Temperature Probe should be returned to Hampshire Controls for temperature recalibration.

  • Page 27: Limited Warranty

    Products believed to have such defects must be returned to the factory by prepaid transportation. Hampshire Controls’ obligation under this warranty is limited to the repair or replacement, at its option, of those items which upon examination prove to be defective. Such repair or replacement will be made without charge.

Table of Contents