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1 

I

NTRODUCTION

 .......................................................................................................................................... 1 

U

NIT 

C

HECK

 .............................................................................................................................................. 2 

P

ANEL

 ...................................................................................................................................................... 4 

U

NPACKING 

I

NFORMATION

 .......................................................................................................................... 5 

O

PERATIONAL 

C

HECK

 ................................................................................................................................ 5 

B

ASIC 

O

PERATION

 ..................................................................................................................................... 6 

H

IGHEST

/L

OWEST 

O

PERATION

 .................................................................................................................... 6 

S

WITCH 

A

LARM 

O

PERATION

 ....................................................................................................................... 8 

S

ENSOR 

P

ROBE

 ........................................................................................................................................ 9 

P

ROBE 

C

ALIBRATION

:

 

R

ECOMMENDATIONS

 ................................................................................................ 10 

P

ROBE 

C

ALIBRATION

:

 

S

OFTWARE 

O

FFSET

 ................................................................................................. 11 

P

ROBE 

C

ALIBRATION

:

 

F

ULL 

H

ARDWARE 

C

ALIBRATION

 ................................................................................ 11 

O

PTIONAL 

F

EATURES

 ............................................................................................................................... 13 

F

AHRENHEIT 

O

PTION 

(F) .......................................................................................................................... 13 

H

IGH

-R

ESOLUTION 

D

ISPLAY 

(H) ............................................................................................................... 13 

R

ELAY 

O

PTION 

(R) .................................................................................................................................. 13 

B

ATTERY 

B

ACK

-U

P 

(B) ............................................................................................................................ 13 

C

URRENT 

O

UTPUT 

O

PTION 

(I) .................................................................................................................. 14 

V

OLTAGE 

O

UTPUT 

O

PTION 

(V) ................................................................................................................. 14 

A

NALOG 

C

OMPUTER 

M

ONITORING 

S

YSTEM 

(CMS)..................................................................................... 14 

D

IGITAL 

C

OMPUTER 

M

ONITORING 

S

YSTEM 

(D) ........................................................................................... 14 

P

ROGRAMMING

 ........................................................................................................................................ 15 

P

ARAMETER 

L

ISTS

 ................................................................................................................................... 16 

 

I

NTRODUCTION

 

The TM1A Digital Alarm is a temperature monitoring and alarm device with user-programmable 

high/low alarm set points and initial alarm delay time. Parameters are stored in non-volatile memory 
and are maintained even when power is removed.  

The temperature readout for the TM1A can be factory-set to ºC or ºF. It can also be readily 

mounted into optional custom panels, for integration with existing equipment. 

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.  

Optional features allow the unit to send temperature data to a recorder or (through an 

appropriate translator), a computerized monitoring system. Please contact Accucold for details of the 
many possibilities! 

 

T

ABLE OF 

C

ONTENTS

 

 

Summary of Contents for TM1A

Page 1: ...tal Alarm Module User Manual Accucold Division of Felix Storch Inc An ISO 9001 2015 registered company 770 Garrison Avenue Bronx NY 10474 www accucold com Write Model and Serial Numbers here Model No...

Page 2: ......

Page 3: ...rm device with user programmable high low alarm set points and initial alarm delay time Parameters are stored in non volatile memory and are maintained even when power is removed The temperature reado...

Page 4: ...o 400 C 32 to 752 F Probe Types P Code Probe P100 100 RTD standard probe P1000 1000 RTD U Micro amp current source K K type thermocouple T T type thermocouple Options O Code Option F Fahrenheit displa...

Page 5: ...3...

Page 6: ...ort chirp It gives an audible tick to indicate a button has been pressed The MUTE PROGRAM button has three functions In Normal Run mode if the unit is beeping pressing the button will mute the beeper...

Page 7: ...power check the label on the power supply to verify compatibility If the air temperature is within the unit s operating range the display should show the current probe air temperature If the display...

Page 8: ...ng is out of range for 0 0 and below The STATUS LED glows green when the probe reads an in range temperature and red when the temperature is out of range The TM1A will not declare an alarm until the o...

Page 9: ...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 Observe...

Page 10: ...meters to specify the amount of time to delay before alarming 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 statu...

Page 11: ...obe Installation The probe may be used in air or in a simulated product such as glycol If installing the sensor in a cabinet or enclosure particularly freezers make sure to use good techniques to prev...

Page 12: ...ded later than if it was located near the top However locating the sensor too close to the top of the chest freezer could result in the alarm being sounded due to routine lid opening Choose a probe lo...

Page 13: ...ometer adjuster Water bath in an insulated container and at a KNOWN temperature different from 0 C Use a thermometer you can trust Ice water bath with plenty of clean solid ice in it The following bat...

Page 14: ...Using a rubber band or masking tape join the sensor probe and the thermometer so that their sensing tips are as close together as possible 3 2 Stir the probe thermometer in the water bath Allow time...

Page 15: ...for the relay delay to time out the relay will not go into its alarm position The relay will also drop out if power to the alarm is lost acting as a power loss detector When the main power to the ala...

Page 16: ...ut is 370 mv 0 370 v If the monitored temperature is 20 C the voltage present at the V option connector is 200 mv 0 200v NOTE This voltage output signal is intended for recorders and data loggers only...

Page 17: ...count 4 Holding either button for half a second will change the parameter value by 10 counts It will continue to step by ten on further button pushes as long as the pushes occur within a short period...

Page 18: ...Relay Delay This parameter is used in conjunction with the relay option If there is an alarm condition the relay contacts will switch The relay delay parameter allows the user to set the amount of tim...

Page 19: ...nth display Def Value T 140 Setting 0 tenth C 1 whole C 2 tenth F 3 whole F Not all settings are applicable to all options I out thermocouples SA Switch Alarm The unit is able to monitor a door or ano...

Page 20: ...t Reset HOLD LO TAP HI Display the Lowest Temperature reached since power up or manual Highest Lowest Reset HOLD HI LO TAP MUTE Display if switch input is open OP or closed CL MUTE Mute alarm beeper f...

Page 21: ...ide the United States 5 Repairs to parts or systems resulting from unauthorized modifications made to the appliance 6 The removal and reinstallation of your appliance if it is installed in an inaccess...

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