Streck Temp-Chex Digital II Gebrauchsanweisung

Temp-Chex Digital II
INSTRUCTIONS FOR USE
The Temp-Chex Digital II thermometer assembly is designed as a convenient device for monitoring the
temperature when storing a variety of products including clinical laboratory reagents, controls, and patient
specimens.
PRINCIPLE
Temp-Chex Digital II is comprised of a digital thermometer base unit and accompanying stainless steel
temperature probe. This thermometer is manufactured to meet NIST/DKD standards of accuracy and is certified
traceable to NIST/DKD standards. Temp-Chex Digital II is accurate to ±1° C between -50° C and -30° C, ±0.5° C
between -30° C and 90° C, ±2° C between 90° C and 150° C and ±3° C between 150° C and 200° C. Temp-Chex
Digital II is not a NIST or DKD thermometer.
COMPONENTS
The stainless steel temperature probe comes within a pre-assembled glass vial/probe unit containing glass beads
as filler material. This glass vial/probe unit connects to the thermometer base unit through the use of a metal cord.
The base unit can be attached magnetically, with adhesive, or by keyhole to any compatible exterior surface.
CALIBRATION STATEMENT
Prior to shipment, Temp-Chex thermometers are stored in a controlled environment. With proper care, the
thermometer should maintain its accuracy. Due to use in diverse applications and handling, there is no precise
way to predict how long calibration will be maintained. As with any thermometer, drift is a possibility and accuracy
can be affected by shock, aging, temperature and contamination through daily use. Periodic recalibration or
verification should be scheduled by each laboratory in accordance with its accrediting agency and/or
established procedure. At a minimum, annual recalibration or verification from the date the thermometer is put
"in use" is good lab practice. A space is provided at the top of the Certificate of Calibration to record the "in use"
date. The date of certification listed for this thermometer is for reference use only. Please contact Streck Technical
Service at 800-843-0912 or technicalservices@streck.com with any questions.
INSTRUCTIONS FOR USE
1. Unpack the thermometer base unit and the glass/vial probe unit with the connector cord. Connect the sensor
probe to the unit.
2. Open the battery cover and remove the battery strip to turn on the unit. The display will show full segment
display for about three seconds and then display current temperature and MIN/MAX values.
3. Select the temperature unit by the [°C-°F] switch on the back of the unit. The unit is now ready to be placed
into service. Record readings once the temperature has become stable.
4. Place the glass/vial probe unit inside of the temperature-controlled area. Mount the base unit outside of this
area. To mount the Temp-Chex Digital II:
a. Prior to attachment of the base unit, determine if the wall is ferrous metal and will allow use of the
magnetic section. If so, make sure the surface is clean and free of any moisture or frost. Place the
enclosed magnet on the surface and then attach the Temp-Chex Digital II base unit. Verify that it will hold
properly before placing into service.
b. If the wall is not ferrous metal or if the surface does not provide proper magnetic attraction, the adhesive
surface of the enclosed magnets can be used. The surface should be clean and dry. First check that
the two magnetic parts adhere to each other (if incorrectly aligned, the magnets will repel each other).
Maintain proper orientation of the magnetic strip when attaching it to the freezer, incubator, or refrigerator
wall. Remove paper backing from the second magnet, attach the adhesive side to the wall and allow
a few minutes to establish the appropriate bonding prior to attaching the magnet already affixed to the
Temp-Chex Digital II base unit. It is safest to attach the base unit to walls in such a position that a shelf
can support it. However, provided the appropriate attachment procedure has been followed, the base unit
should remain stationary.
FUNCTIONS
DISPLAY MODES
When the unit is powered on, the default display is the MIN/MAX mode.
Press the [MODE] button once to change the display to the LO/HI alarm mode.
Press the [MODE] button again to change the display to the DATE/TIME mode.
Press the [MODE] button again to change the display to the MIN/MAX mode.
SETTING DATE AND TIME
To set the date and time, press the [MODE] button to display the DATE/TIME mode.
Press the [SET] button on the back of the unit. The setting to adjust will flash. Press either the [ ↑ ] or [ ↓ ] button
on the back of the unit to change the year setting, then press [SET]. Use the [ ↑ ] or [ ↓ ] button to change the date,
then press [SET]. Use the [ ↑ ] or [ ↓ ] button to change the time, then press [SET] to accept.
NOTE: If the date and time is changed, all the memory will be reset.
TURNING AUDIBLE LOW/HIGH ALARM ON OR OFF
NOTE: The unit will automatically record the date and time of an out of alarm limit when the Low/High
alarm is turned on. The unit will record 10 events.
In the LO/HI alarm display mode, press the Alarm (
is on, the ( ) icon will be displayed. The icon will be displayed in the LO/HI alarm and MIN/MAX display modes.
SETTING ALARM
These settings are user-defined based on the laboratory's criteria for the controlled environment.
To set the Low/High alarm, press the [MODE] button to display the LO/HI Alarm mode.
Press the [SET] button on the back of the unit.
Enter the low alarm temperature setting by pressing the [ ↑ ] or [ ↓ ] button on the back of the unit, then press
[SET].
Enter the high alarm temperature setting by pressing the [ ↑ ] or [ ↓ ] button on the back of the unit, then press
[SET].
When the temperature reading exceeds the user-defined low or high alarm values, the alarm will sound,
the LO ALM or HI ALM icon will flash and the LED in the upper right hand corner of the unit will flash.
The alarm will sound for one minute. After that time, the sound will be two beeps every one minute to
preserve battery life. The audible alarm will stop when the temperature returns to within the alarm limits
but the LED will continue to flash until the memory is cleared.
) button to turn on or off the alarm function. When the alarm
MIN/MAX TEMPERATURE
In the MIN/MAX display mode, the display will read the current temperature and the MIN/MAX temperature
memory.
Press the [EVENT] button to read the MAX temperature and the date and time of the reading.
Press the [EVENT] button to read the MIN temperature and the date and time of the reading.
Press the [EVENT] button again to return to the MIN/MAX display mode.
To clear the MIN/MAX memory, press the [CLEAR] button to permanently delete all MIN/MAX events in
memory.
LOW/HIGH ALARM DATE/TIME STAMP
In the LO/HI alarm display mode, press the [EVENT] button to read the LO/HI alarm generated with its associated
date/time stamp.
A number on the top left corner of the screen will indicate the number of events recorded. A zero will display with
all dashes if no events have been recorded.
Press either the [ ↑ ] or [ ↓ ] button on the back of the unit to scroll through the date/time stamped events.
Press the [EVENT] button to exit the reading mode.
To clear the LO/HI memory, scroll through the Date/Time stamped events and press the [CLEAR] button
to permanently delete all LO/HI events in memory.
LIMITATIONS:
• Do not remove probe from unit. If probe is disconnected, the alarm will sound and a red light will flash.
Reconnect the probe, wait for the audible beep to stop, then press the Alarm (
Flashing will stop. Press the Alarm button to enable the audible alarm and continue using the unit.
• The base unit should not be exposed to extreme temperatures.
• Avoid transferring probe unit directly from one extreme temperature environment to another (e.g., freezer to
oven); instead, allow unit to slowly adjust to room temperature first.
• Do not immerse glass vial/probe unit in liquid (e.g., water baths).
• If probe insertion within the glass vial/probe unit becomes offset relative to its original position, adjust insertion
such that approximately 1 / inch (30 mm) of the probe extends above the top surface of the vial.
3
16
• If the thermometer is placed outside of the range of designed use, the display may read the following: "LLL"
when used below -50° C, "HHH" when used above 200° C.
• If using the thermometer within the range of designed use and the display reads "LLL" or "HHH", make sure
the probe is inserted correctly.
BATTERY
The battery life for this unit is typically one year. Replace the AAA batteries if:
• The Low Battery Voltage symbol appears in the upper right hand corner.
• There is no display (the battery may be discharged).
• Readings are inconsistent.
SPECIFICATIONS
Measurement Range: -50 to 200° C / -58 to 392° F
Accuracy:
±1.0° C between -50° C and -30° C.
±0.5° C between -30° C and 90° C.
±2.0° C between 90° C and 150° C.
±3.0° C between 150° C and 200° C.
Display resolution: 0.1° C
Sampling rate: 1.0 second
Battery: 1.5V AAA
Display size: 37 mm (W) x 37 mm (H)
Probe size: 65 mm (L)
Probe cord length: 1524 mm
Product size: 65 mm (W) x 97 mm (H) x 20 mm (D)
Product weight: ≈130 g
ORDERING INFORMATION
Please call our Customer Service department toll free 800-228-6090 for assistance. Additional information can
be found online at www.streck.com.
INTERNET CERTIFICATE OF CALIBRATION DIRECTIONS
A translated, generic Certificate of Calibration can be obtained at www.streck.com using the Temp-Chex Digital II
product page, by calling 800-843-0912 or by calling your local supplier.
GLOSSARY OF HARMONIZED SYMBOLS
EC REP LOT
Authorized Batch
Representative in Code
the European
Community
IVD
In Vitro Diagnostic Manufacturer
Medical Device
Glossary of symbols may contain symbols not used in the labeling of this product.
7002 S. 109 Street
Omaha, NE 68128
) button to turn the alarm off.
REF
Biological Risk Catalog
Number
Consult Temperature
Instructions Limitation
For Use
Use By
WEEE
350646
2014-09