Tolerances – Fluke Biomedical medSim 300B User Manual

Page 156

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medSim 300B

Operators Manual

6-8

4. For respiration, set the "LEAD" switch to "II/RL-LL" and the "IMPEDANCE"

switch to "500". The first respiration step is a reference step. Do not adjust it.

Record it and add it to the value called for in the remaining respiration steps, or

offset the DMM to zero.

5. For blood pressure, connect the blood pressure calibration cable to the 10-volt

supply and DMM as follows:

Cable Wire Connection
GRY +SUPPLY
GRN -SUPPLY
BLK +DMM
RED -DMM

6. Set the "SENSITIVITY" switch to "40". Set the supply to +10 V ±10 mV. The

calibration steps call for +10 V or -10 V or 0 V. To get the -10 V exciter, reverse

the connections to the supply. To get 0 V exciter, remove the connections from

the supply.

7. To calibrate temperature, use the temperature calibration cable. Set the

"CARDIAC OUTPUT/ VAR TEMP" switch to "VAR TEMP". Following are the

three different cable and switch settings used in the calibration steps:

Cal Steps Cable Colors Probe Switch DMM Current
T1 GRN-RED

700

10-100

µA

T2 GRY-RED

700

1-10

µA

400 BLK-RED

400

10-100

µA

The chart above also indicates the DMM output current that must be used.

Note

Most meters use 100 µA for the 20 k

e

range and 10 µA for the 100 k

e

range.

8. To calibrate cardiac output, use the cardiac output cable. Set the "CARDIAC

OUTPUT/VAR TEMP" switch to "CARDIAC OUTPUT".

9. Set the DMM to measure resistance using 10 µA. Connect the black cable lead to

the "+DMM" jack and the red cable lead to the "-DMM" jack.

10. When the last step is completed, the calibration constants are automatically

stored in the medSim 300B and a long beep indicates that the calibration

procedure is completed. Now you may reassemble the unit.

Tolerances

Adjustment tolerances for each step:

ECG REF

No adjustment; reading is <±5 mV

ECG 5 mV

±0.02 m

PACE ±700

±0.4 mV

PACE REF

No adjustment; reading is <±5 mV

ATRIAL PACE

±0.2 mV

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