GE 610 User manual
MODEL 610
Liquid Nitrogen
Battery Operated Low Level Alarm
16380 13 Mile Rd. • Roseville, Michigan 48066 • (586) 778-0426 • Fax (586) 778-0479
www.gordinier.com Email: pat@gordinier.com
TABLE OF CONTENTS
Receiving and Unpacking 1
Features 2
Installing Bracket and Controller to Small Refrigerator 3
Low Level Probe Installation 4
Connect Probe to Controller 5
Connect Transformer to Controller 5
Option - Special Order 6
Testing the Controller 7
Charging the Battery 7
Calibrating Low Level Alarm 8
Care & Maintenance 9
MODEL 610
MODEL 610 RECEIVING & UNPACKING
Important!
Carefully examine the shipping carton and contents for damage. If carton or contents are
damaged, contact your Gordinier Electronics, Inc. distributor or Gordinier Electronics Inc. directly at
(586) 778-0426, immediately to file a claim. To preserve the right to claim shipping damages, the
packing, inspection and filing of the claim must take place promptly. Failure to inspect and file
promptly will release the shipper from liability.
Check the contents for apparent shipping damage such as broken knobs, switches or dented
cases. If there is any damage, IMMEDIATELY contact the carrier for corrective action.
If an operating problem has been detected once the instrument has been properly set up,
contact your Gordinier Electronics, Inc. distributor or Gordinier Electronics Inc. directly at
(586) 778-0426.
STOP! READ THIS ENTIRE INSTRUCTION MANUAL
If you do not understand these instructions, please contact us
for further explanation. Failure to comply may result
in damage to unit or poor equipment performance.
Gordinier Electronics, Inc.
16380 13 Mile Road
Roseville, MI 48066
Phone (586) 778-0426 Fax (586) 778-0479
www.gordinier.com Email: pat@gordinier.com
Model 610 1
Test Button
Audible Horn
Calibration
Setting
9 Volt Connection
Probe
Connection
On/Off Calibration
Toggle Switch
BATTERY OPERATED LOW LEVELALARM
Features:
This economical, battery operated nitrogen low level alarm, provides up to 5 days of alarm on one
charge.
This handy unit is also equipped with a built-in battery charger, a bracket designed to protect the unit
during fill. Model 610 Liquid Nitrogen Low Level Alarm, is a small self-contained unit with features
you would expect to find only in larger costly alarms, designed with a test circuit and probe protection.
MODEL 610
Model 610 2
♦Built-in battery charger
♦Continuous alarm (5 days on full battery charge)
♦Universal 9 volt AC Wall Transformer/OPTION 220 volt
♦Open or shorted probe protection
♦Push to test button (battery and alarm can both be
tested at the same time)
♦Easy Installation
♦Low battery indicator
♦Compact size (3 1/4” x 5 1/2” x 1 3/4”)
♦Complete with mounting bracket to fit on the unit handle
INSTALLING BRACKET AND
CONTROLLER TO SMALLREFRIGERATOR
WARNING
Do Not allow this controller to come in contact
with Liquid Nitrogen vapors
Model 610 3
MODEL 610
• Secure bracket to handle on storage unit with existing screw.
• Remove Velcro Film from strip (2 places) and position controller onto bracket.
Screw
Velcro Film
Bracket
Handle
Handle
Controller
LOW LEVELPROBE INSTALLATION
MODEL 610
WARNING
Do Not allow this controller to come in contact
with Liquid Nitrogen vapors
Model 610 4
Lower the Sensor Probe to bottom of tank and raise off the bottom to desired level. A minimum of
2 to 3 inches is suggested, this should allow for several days of safety margin. The sensor bulb is
approximately 1/4” from end of probe.
Note: Consult tank manufacturer for data on “Day of holding time per inch of liquid nitrogen
level”.
Sensor Probe
Liquid Nitrogen
Sensor Probe
Connector
Controller
End of Sensor
Probe
When proper depth is determined gently bend the probe wires at the neck of the dewar.
CONNECT PROBE AND TRANSFORMER
TO CONTROLLER
WARNING
Do Not allow this controller to come in contact
with Liquid Nitrogen vapors
MODEL 610
Model 610 5
Plug the 9 Volt AC Transformer into proper AC outlet. It is imperative, for safe and stable
operation, that the controller be connected to a properly grounded AC outlet. Unfortunately,
some of the three (3) prong outlets are not properly grounded. Check to make sure that the
outlet to be used is connected to a known ground BEFORE plugging in theAC power cord.
ProperAC Outlet
9 Volt
Transformer
9 Volts AC
Low Sensor Probe
9 Volt
Transmittor
Connector (B)
Plug the Probe (A) into the Controller (as shown above).
Plug the 9 Volt AC Transformer connector (B) into the Controller (as shown above).
The Power LED will light.
(B)
(A)
Horn
Refer to Page 5 for Probe
Connection to Controller Special Order Lid
inserts directly
into dewar.
Low Level
Alarm Probe
OPTION
Special Order Lid
WARNING
Do Not allow this controller to come in contact
with Liquid Nitrogen vapors
MODEL 610
Model 610 6
Special Order Lid
TESTINGTHE CONTROLLER &
CHARGINGTHE BATTERY
MODEL 610
Model 610 7
This unit comes complete with three (3) nickel cadium batteries and 9VAC power adapter for
battery charging, eliminating the need to ever buy, or replace batteries. Under normal operating
conditions, the batteries require charging once a month.
• The battery operated alarm is activated by turning the battery switch “On”.
• If the sensor probe is immersed in Liquid Nitrogen, there is no audible signal from the alarm unit.
When the sensor is removed from the liquid nitrogen, the audible signal will sound
in a few seconds (5 to 15 typically.)
• The audible signal can be tested when the sensor is immersed in liquid nitrogen by pushing the
“Push toTest” button. The audible signal will sound for 5 days contiuously depending on the
charge level of the batteries.
• The audible signal can be silenced by correcting the low liquid nitrogen level problem, or turning
the battery switch to “Off”.
• In the event that the single thermistor should open or break, a tone will alert the operators.
• The battery and alarm horn can be tested at any time.
• When the batteries begin to go low, the unit produces an audible sound.
Test Button
Battery “ON/OFF” Switch
CHARGING THE BATTERY
A battery charging circuit is built into the alarm unit, and a 120VAC to 9VAC power adapter (or
Optional 220V) is provided.
The unit needs to be periodically recharged to maintain the batteries at peak voltage.
It is recommended that you recharge every week-end, a minimum of once a month. Recharging
time is approximately 15 hours.
The battery charger light will indicate that the batteries are being charged.
CALIBRATING LOW LEVELALARM
MODEL 610
Model 610 8
• Submerge the Probe in liquid nitrogen (LN2) for 10 minutes.
• Press the battery “On/Off-Cal” toggle switch downward and hold.
• Use the screwdriver (supplied) turn the adjuster clockwise or counter-clockwise
until the tone begins to sound. Slowly turn the adjuster until the tone sound just disappears.
• Release the “Cal” toggle switch to its battery “Off” position.
• Press “Cal” toggle switch to its full upright position or battery “On”.
• Press the “Push to Test” button to assure the battery power is turned on and calibrated.
ADJUST WITH
SCREW-
DRIVER
“ON/OFF”-CAL
TOGGLE SWITCH
PROBE
TEST BUTTON
Table of contents
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