LOW LEVEL ALARM - Taylor Wharton
Contents
1. check is made and accessories from your supplier or from Taylor However the LED will remain red until the Wharton at the addresses listed below Please include LN level is raised above 25 percent the part number quantity and description of each part requested TEST The status light and the audible horn can be tested by depressing the TEST MUTE button This test can only be made so long as an alert condition does not exist Taylor Wharton 4075 Hamilton Blvd Theodore AL 36590 Taylor Wharton Phone 334 443 8680 800 TW TANKS 898 2657 Fax 334 443 22092. LOW LEVEL ALARM TW 307 B For Liquid Nitrogen Refrigerators The Cryo Sentry is an optional accessory for se lected models of portable liquid nitrogen refrigera tors It is designed to provide visual and audible alarms when the liquid nitrogen level drops below a preset level usuaully 25 percent of the container capacity This monitoring system provides a high level of security alerting the user to low nitrogen levels and serves as a reminder for scheduled refilling Safety The Cryo Sentry consists of three components Alarm Module Power Supply and Sensorcore Before using this accessory read the Handle with Care booklet TW 10 provided with the unit It details safety precautions that must be read and understood before using the equipment Following are a few precautions described in Handle with Care Please be sure to read the entire booklet Do not touch liquid or cold metal surfaces with your bare skin The liquid nitrogen used in cryogenic refrigerators is extremely cold 320 F 196 C Exposure of skin or eyes to liquid cold gas or frosted parts could result in a severe frostbite like injury Use only the sensorcore provided with this acces sory or the one originally shipped with the refrig erator A tight fitting plug or stopper will cause a pressure increase in the container that may damage the container and or cause personal injury Installation The Cryo Storage low level alert arri
3. ON H ee S The Cryo Storage low level alert automatically checks the liquid level every 30 minutes This conserves AAPM PELAY pie RECEPTACLE battery power thereby extended the security The 25 percent level notification provides sufficient time for the Remote Alarm Plug Connection user to refill the dewar The user can check the level without opening the Replacement Parts vessel by pressing the LEVEL CHECK button Re sults will be displayed in 30 seconds The possible Description Part Number results are provided in the following table Alarm Module cccccceeeeeeeeeeneeeeeeneees 5140 1124 7 Flash POWE SUDO o2snasedsvenerieneteecenssaintasnew ent 5190 3094 nora ana ROEK 8C20 Sensorcore Assembly for 18XT 20XT or 34XT re nee ee R033 8C40 Low Battery Red ___ isec___ Yes_ Sensorcore Assembly for 34HC R034 8C40 LowLN 2 Red __ 2sec Yes Sensorcore Assembly for 35HC R037 8C40 Sensor Fault Red __ 3sec __ Yes__ Sensorcore Assembly for 35VHC R036 8C40 Sensorcore Assembly for 1575RS RS15 8C40 Sensorcore Assembly for 3000RS RS30 9C16 Sensorcore Assembly for 4800RS ROS5K 8C27 MUTE The user can mute the audible Sensorcore Assembly for 3K 0 e0ceeeee RO3K 8C49 alarm at any time by pressing the TEST MUTE button The alarm will remain muted Ordering Information Order all replacement parts until the next 30 minute
4. ves ready for immediate use 110 VAC Power The alarm runs on either 110 VAC or 4 AA size battery power For 110 VAC simply plug the wall transformer into alarm module at the jack labeled AC POWER Next plug the sensorcore into the alarm module at the jack labeled SENSOR The Cryo Sentry can either be attached to your dewar with the VELCRO strips provided or can be mounted to the wall Lower the sensorcore into the refrigerator and plug the trans former into a 110 VAC outlet or a surge protected power supply Battery Power The alarm can also run on four 4 AA batteries Once installed the batteries will supply power to the monitor for an extended period of time To install the batteries remove the back cover and insert the batteries The positive terminal should be pointed towards the label on the battery holder ay Taylor Wharton Installation cont Remote Alert Duration of battery powered operation can vary from The remote alert circuit is activated immediatley once six months to one year depending on the usage An a Low Battery Low LN or Sensor Fault is detected audible and visual alert will be activated once battery The remote alert will remain active even if the battery power is low power is depleted Pins 1 and 2 are closed in normal operation Pins 2 and 3 are closed during a remote GRAY ORANGE PURPLE PLUG alert condition Operation 1 I N 2 COMM
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