Jewett T100-1, T100-3 Service Manual

Installation

Operation and Service Manual

TEMPERATURE

SURVEILLANCE MODULE

MODEL NUMBER T100-1 & T100-3

WITH SELF TEST FEATURE

IMANES,

JEWETT

O 1992 by the Jewett Refrigerator Co. Inc., Buffalo, NY 14213-1098, USA. All rights reserved. Manual No. 090193

GENERAL

INFORMATION

JEWETT TEMPERATURE

SURVEILLANCE

MODULE

)

Start

Up

Procedures

for

the

Jewett

T100-1

and

T100-3 Surveillance Module

Now

that

your BBR

Blood Bank

Refrigerator

or

BPL

Blood

Plasrna Freezer is set in place and in operation, the following

items

should

be accomplished

to place

the

T100

Module

in

operation.

1.

Fill

the upper and lower solution

bottles

to

within

1°

of

the

top with

the proper

solution:

BBR

Series - 10% Glycerine in

water

BPL

Series

- 50%

Glycol

Base

Antifreeze

in water

The

probes should be placed back

into

the

botties ensuring

that

the

lower 4"

of

the probes

are

completely

immersed.

2.

Connect

the back-up

battery

(9

volt)

to

the

module.

The battery

is

located

in

a

holder on

the top

of the

dust

cover

on

the

back

of

the

surveillance

module.

3.

After

24

hours

of

operation,

the

surveillance

module

should

be

checked

for

proper operation.

By using

this manual

as

a

guide,

operate

the

various

functions.

This

will

not

only ensure

proper

operation,

but

will

also

familiarize

you

and

your

staff

with

it's

correct

operation.

The	Jewett	Self Test	Ternperature/Power Surveillance Module is					a sophisticated precision electronic instrument.
Its	primary	purpose	is to	assure the	user	of stored	product safety.	The	module is designed to	be a separate
and	distinct	system	which	operates	and	functions	independently	from	the refrigeration control	system.

SEVEN BASIC FUNCTIONS PERFORMED BY THE MODULE

1. High/Low Temperature Self Test Feature

2.

Calibration

Check

for Digital Display Accuracy.

3.

Monitoring

of

Temperature

With

or Without

the Presence of AC Power

4.

Constant 24 Hour Surveillance of Temperature Within the Refrigerator or Freezer Cabinet.

5.

Constant

Display

of the Upper

Solution

(or

Product) Temperature With

Provision

for

the

User

to

Select

and

Momentarily

Display the Lower Solution (or

Product) Temperature.

6.

A

Door

Ajar

Status indicator Light and Audible Signal.

7.

Low Back-Up

Battery

Indicator

Light and

Audible Signal.

à

OPERATIONOFTHE MODULE

Page	2 of this		manual	illustrates and			identifies the		location	of various operational functions.	.
The	module	face panel		is	divided	into	two	sections,	Display	and Monitor. The following paragraphs describe the
indications		and	functions		that take	place		in these sections.

DISPLAY SECTION

The digital display indicates the temperature

of

the

upper

solution

within

the

refrigerated cabinet when the green

upper

solution

LED

is illuminated.

To

display

the

lower

solution

temperature,

depress the lower solution selection

Touch Pad Switch momentarily. The instrument now senses and displays the

lower

solution

for

a

period of 4

seconds. The display will automatically return

to

display

of

the

upper

solution

temperature.

The

Alarm

Test

Function

-

The

high

alarm

is

activated

by

depressing

and

releasing

the

High

Alarm

Touch

Pad

Switch.

The

temperature

will rise until the module

reaches

the

High

Activation

Temperature

(T100-1, +5.5°C.,

T100-3, -20°C.}. The low

alarm is

activated by

depressing

and

releasing

the

Low

Alarm

Touch

Pad

Switch.

The

temperature will

fall

until

the module reaches the Low Activation Temperature

(T100-1, +1.5°C.). The temperature

display

will

return

to

normal

operating

temperature

once

the alarm

point

is achieved.

The

Calibration

Function

-

By

depressing

the

Calibration

Touch

Pad

Switch,

the

digital will display the following:

T100-1

(10*C.),

T100-3

(-20*C.).

If the

display

is

more

than

.2

+ or

-

off,

see

page 4

for

calibration

instructions.

MONITOR SECTION

~

The	Temperature		Section	-	Monitors	the
and	presence	or	absence	of	AC primary
extinguish, the		appropriate		temperature

temperature

of

the

upper

solution within

the

refrigerator or freezer cabinet

power.

Ouring

a

primary

(AC)

power failure,

the

digital

display

will

LED

will

be

illuminated,

and

a

pulsating

audible

will be

present.

AudibleheDelaySection

- Consists

of

a Start

Touch

Pad

Switch,

Reset

Touch

Pad

Switch and four green LED

Lamps designating 5, 15,

30 or

45

minutes.

To

silence

an

audible

signal depress

the

start switch once and the

5 minute LED Lamp will illuminate

and

a

5

minute

silence

period

will

begin.

A longer

silence period may

be

selected by once again depressing

the

start

switch.

The

silence

period can

also

be selected by depressing the

start switch and holding it

down

until the

desired

silence

period

is

obtained.

The

selected silence period

can

also be cancelled by depressing the reset switch.

The Power

Section

- Consists

of

a

red

Power

Failure

LED,

a red

Battery

Low

LED,

and

a

Battery

Test

Touch

Pad

Switch.

During

an

AC

Power Failure, the failure LED

will

be

illuminated

and

a

pulsating

audible

signal

will

be

present.

If

the

back-up

battery

power

becomes

low

(7.0

VDC

measured

under

load),

the

Low

Battery

LED

will

flash and an audible signal

will

be

present.

To

check

the

battery,

depress

the

Battery

Test

Touch

Pad

Switch,

this will

simulate

an

AC

power

failure.

During

this

test

the

digital

display

will

extinguish,

the appropriate

temperature

LED

will

be

illuminated,

the

power

failure

LED

and a

pulsating

audible

will

be

present.

Upon

the

completion

of the Battery Test Furction,,

momentary display of -88.8

on

the

digital

display,

and

every

LED

will

illuminate

for

approximately

1

second.

This

will

ensure

that

all

LED's

on

the

face

and

all segments

of

the

.

digital

display

will

illuminate.

)

TheDoorAjarSection

- Consists

of

a

red

LED

Door

Ajar tamp, and a Reset

Touch

Pad

Switch.

When

the

refrigerator

(or freezer)

door

is

properly

closed,

no

indication

is

present.

Whenever

the

door

is

intentionally

or

unintentionally

open

(ajar)

the

red

LED

Door

Ajar

lamp

will

flash.

If

the

door

remains

open

for

approximately

three (3)

minutes

(+ or

-

30

seconds),

a

pulsating

audible

signa!

will

be

heard.

!f the

Door

Ajar

alarm

condition

is

not

corrected

and

the temperature of the upper solution reaches

4.5°

C., a signal will be sent

to

the

remote

location

monitor

where

applicable.

If

it is

necessary

for the

door

to

remain

open

after the

audible

signal

sounds,

depress

the

Door

Ajar Reset

Touch Pad Switch and the audible will be silenced for an additional three minutes.

1.

"

v

и

				DISPLAY
1100	-1			SELECTION
				UPPER
					VA
SURVEILLANCE				SOLUTION
MODULE	DEGREES			LOWER	o“
		ALARM		SOLUTION
		TEST			L
	HIGH	ALARM		SELECT	m
	LOW	ALARM		LOWER
	CALIBAATION
			MONITOR
		TEMPERATURE		POWER

1.

Digital

Dispiay

Displays

temperature

in

degrees

C.,

as measured

by

the

selected

temperature

sensor.

2.

Upper

Solution

LED

When

green

LED

is

illuminated

the

digital display provides a reading

from the sensor in the upper

solution

bottle.

3.

Lower

Solution

LED

When

this

green

LED

is

illuminated

the

digita!

display

provides

a

reading from the sensor in the lower

solution

bottle.

i

4.

Lower

Solution

Touch

Pad

Selection

Switch

This

switch

when

pressed

is

used

to momentarily display a reading of

solution temperature in the lower

section

of

the

refrigerator

or

freezer.

5.

Door

Ajar

LED

This

red

LED

will

fash

whenever

the door is open or ajar

{not

completely

closed.)

8.

Door

Ajar

Reset

Touch

Pad Switch

This

switch.when

pressed

will

silence the door ajar timer to

provide

an

additional

silence

period

(3 minutes) before the audible

signal

operates

again.

7.

Audible

signal

source

This

device

will

provide

a

continuous

sound

when

the

temperature

in

the

upper

solution

exceeds the upper (T100-1 5,5*C.,)

T100-3 -20° C.) or

lower

(T100-1

only

1.5°

C.)

limits

or

a

pulsing

sound

when

there

is

an

AC

power

failure,

low

voltage in the back up

battery

or

when

the

door

ajar

feature

is

activated.

8.

Power

Failure

LED

This

red

LED

will

fiash

if

the

AC

power

fails

or

when

the

battery

test

)

switch

is

pressed.

9.

Battery

Low

LED

This

red

LED

will

fash

when

the

10.

Battery

Test

battery

voltage

drops

below

7 VDC.

Touch

Pad

Switch

When

this

switch

is

pressed

all

display

indication is extinguished except the

appropriate

temperature

indicator LED and

the

power

failure LED.

11.

Audible

Silence Time

Selection

LED's

These

LED's

when

illuminated

indicate

audible

me

period sstected (5, 15, 30 or

45

minutes).

When the time period expires

the

LED

will

extinguish.

12.

Audibla

Reset

Touch

Pad

Switch

This

switch

when

pressed

will

cancel

the

time

period

that

was

previously

selected,

13.

Audible

Silence

Touch

Pad

To

silence

tha

audible

sound

press the

Selection

Switch

switch

until

the desired green LED is

Huminated

indicating

5,

15,

30

or

45

-

minutes.

14.

Temperature

Low

LED

(T100

-1

only)

When

the

red

LED

is

illuminated

the

temperature

in

the

upper

solution

bottle

is

below

1.5°

C.

15.

Temperature

Sate

LED

When

this

green

LED

is

illuminated

the

temperature

in

the

upper

solution

bottle

is

in

the

safe

range.

16.

Temperature

High

LED

When

the

red

LED

is

illuminated

the

temperature

in

the upper

solution bottle is

above

5.57

©.

(T100

-3 at-

209

C.).

17,

Calibration

Touch

Pad

Switch

When

this

switch

is prassed

the

digital

will

display

the

following:

T100-1

10.0

18.

Low

Alarm

Touch

Pad

Test

Switch

When

this

switch

la

pushed

and

released

(7100-1

only)

the

alarm

sensor

in

the upper

solution

bottle will be cooled until the temperature

reaches

the

alarm

polnt of +1.5°C. At this

time the audible sound and the low temp-

erature

LED

are

activated.

Once

the

alarm point is achieved the module will

return

to

normal

operation.

19.

High

Alarm

Touch

Pad

Test

Switch

When

this

switch

is

pushed

and

released

the alarm sensor in the upper solution

bottle

la

warmed

until

the

temperature.

teaches

the

alarm point (T100-1, +5.5°C.,

T100-3, -20°C.). At

this time the

audible

sound and the high temperature LED are

activated.

Once

the

alarm

polnt

la

achleved

the

module

will

retum

to

normal

operation,