Predictive Thermometer Verification And Calibration; Temperature Accuracy Verification With The Predictive Temperature Simulator; Temperature Accuracy Verification With The Predictive; Temperature Simulator - Datascope Accutorr Plus Service Manual

7.6 PREDICTIVE THERMOMETER VERIFICATION AND
The first, Temperature Accuracy Verification with the Predictive Temperature Simula-
tor, is a very quick method to confirm that the PTM is operating within the specified
limits. The PTM simulator is a Datascope proprietary test device, available for purchase
from the company. The Predictive Temperature Simulator (P/N 0454-00-0017) has not
been released for sale to customers in CE countries.
The second method, called the Water Bath Method, utilizes laboratory grade stirred
water bath to confirm that the PTM is operating within the specified limits.
In case of failure or inaccuracy of readings, the System Calibration Procedure may be
followed to re-adjust the device to factory specifications.
This procedure requires high accuracy test equipment and therefore it is not recommended
for field calibration. Datascope offers a comprehensive factory service program to support
this product."
7.6.1 Temperature Accuracy Verification with the Predictive Temperature
1. Measure the battery in the Predictive Thermometer module, verify that the voltage is
8.6 V or greater. NOTE: Newer modules do not contain a 9V battery. Skip this step.
2. Install the Predictive Temperature Module onto the Accutorr Plus and turn on the
monitor.
3. Remove the temperature probe from the probe holder and disconnect the connector
from the Predictive Thermometer module. Connect the Predictive Temperature
Simulator.
4. Select 85.0 ° F (29.4 ° C) and push the "Push to cycle PTM" button to reset the PTM.
5. Note the resultant display in the TIMER/TEMP window on the Accutorr Plus. It
should be 85.0 ° F (29.4 ° C).
6. Press the "Push to cycle PTM". Select the next higher temperature, 98.5 ° F (37.0 ° C).
Since this is a predictive device with "look ahead" algorithm, it is important to read
only the second number flashed on the display. The first, third or subsequent
flashing readings may be outside of the limits. Return to 85.0 ° F (29.4 ° C).
7. Repeat step 6 for the remaining temperatures. Record the test results. All readings
must be within 0.1 (F/C) degrees of simulator settings.
8. Disconnect the Predictive Temperature Simulator, and connect the normal temperature
probe. Insert, then remove the probe from the probe holder. This will reset the PTM,
and flash an initial value of 85.0 ° F or 29.4 ° C.
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Revised 01/11/00
CALIBRATION
Simulator
Accutorr Plus Service Manual
Chapter 7 - Calibration