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Summary of Contents for Accucold TM1A
- Page 1 TM1A Digital Alarm Module User Manual Accucold Division of Felix Storch, Inc. Write Model and Serial Numbers here: An ISO 9001:2015 registered company Model No.: 770 Garrison Avenue Serial No.: Bronx, NY 10474 www.accucold.com...
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Page 3: Table Of Contents
The TM1A is quite simple to operate. Plug in the unit, place the probe in the location to be monitored, and the display will show the temperature of that location. Pushing the three buttons allows the user to program both high and low alarm set points for the temperature range. -
Page 4: Unit Check
HECK Check the serial number label on the rear of the unit to be certain that it is the proper unit for your application. The label will show model number, temperature range, probe type, and any options in the following format: 140-T-P-O. Temperature ranges: T Code Range, ºC... -
Page 6: Panel
ANEL The LCD Display shows the temperature in ºC or ºF, depending on the option. • If the unit has the battery-backup option, the display shows a BAT message to indicate that there has been a power loss and it is running on the battery. The STATUS tricolor LED shows the status of the unit. -
Page 7: Unpacking Information
If the display is blank, check to make sure that power is going to the unit. If the STATUS LED is lit (any color), the TM1A has power. If not, verify that the power supply is plugged into the unit and into line power. -
Page 8: Basic Operation
The TM1A will not declare an alarm until the out-of-range state has continued for a specified time (the “alarm delay”). This alarm delay time will prevent transient nuisance alarms. - Page 9 • Continue holding Lo and release the Hi button To manually reset the Highest and Lowest to the current temperature • HOLD both the Hi and the Lo buttons together • (Observe “H L” on display) • Press the Mute/Program button •...
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Page 10: Switch Alarm Operation
When the Switch Input is in the alarm condition for longer than the Switch Alarm Delay time, the TM1A will alarm and display the door status “OP” or “CL”. Once the unit mutes the alarm, the display will return to the current temperature. -
Page 11: Sensor Probe
ENSOR ROBE The probe supplied with the TM1A is a highly accurate temperature sensor. The sensor may be put in water or other mild aqueous solutions. NOTE: Avoid submerging the probe in solvents or harsh chemicals. Use protective thermowells when monitoring such materials. -
Page 12: Probe Calibration: Recommendations
Choose a probe location that offers the safety desired for the enclosure contents. Probe Calibration: Recommendations Accucold recommends that the calibration of the alarms be verified annually. All our temperature alarms are factory calibrated to NIST standards and tested by factory trained personnel. -
Page 13: Probe Calibration: Software Offset
OFFSET to -2. If you need it to display 1 degree higher, set it to 1. Probe Calibration: Full Hardware Calibration The temperature sensor used in the TM1A has excellent long-term stability and should not need recalibration in normal usage. However, if the probe is subjected to temperature extremes outside of the normal operating range for the unit, or if the probe is damaged and needs to be replaced, it must be recalibrated. - Page 14 1.3. Plug the unit into a 110-120 volt power supply. 2. Adjust the Zero Point: 2.1. Stir the ice water bath and place the temperature probe in it. Let the probe sit in the bath for about 5 minutes to allow it to stabilize at temperature. 2.2.
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Page 15: Optional Features
Remove the screw located on the outside of the left side of the module to activate the battery option. When line power is present, all the normal features of the TM1A are operating. When line power is lost, the battery provides power to continue to display the temperature of the area being monitored. -
Page 16: Current Output Option (I)
This computer monitoring option is used with our computer-based CMS system. This option provides a 4-prong terminal strip for power in and voltage out. Digital Computer Monitoring System (D) This serial communication option can be configured for RS232, RS485, or RS485/DMS. Please contact Accucold for serial protocol. -
Page 17: Programming
ROGRAMMING To program the TM1A Hold the Program button for two seconds to bring the unit into Programming mode. The display will show the first parameter that can be programmed (high temperature limit). The name of the parameter will flash, then the current value of that parameter. -
Page 18: Parameter Lists
SAD (Switch Alarm Delay) The TM1A will not declare an alarm until the switch has been in its alarm position for a specified time (the "switch alarm delay"). The switch alarm delay time can be set for 0 to 30 minutes. - Page 19 OFF (Offset) This is a software Offset that allows the user to correct the temperature display. See the “Probe Calibration: Software Offset” section. dEF (Definition) Defines ºC/ºF and whole/tenth display. Def Value T'140 Setting tenth ºC whole ºC tenth ºF whole ºF Not all settings are applicable to all options.
- Page 20 Quick List of Button Functions While in Run mode: Press: Display high temperature alarm point Display low temperature alarm point MUTE + LO Display software version number HOLD HI & TAP LO Display the Highest Temperature reached since power up or manual Highest/Lowest Reset HOLD LO &...
- Page 21 (Metallic) which is known to the State of California to cause cancer. For more information go to www.P65Warnings.ca.gov Note: Nickel is a component in all stainless steel and some other metallic compositions. Accucold Division of Felix Storch, Inc. An ISO 9001:2015 registered company 770 Garrison Avenue Bronx, NY 10474 www.accucold.com...
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