F9 Fetal & maternal Monitor Service Manual Periodic Tests
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11.2.2 TOCO Performance Test
This test checks the performance of TOCO measurement.
Required Equipment: TOCO Test Kit, Weights
1) Connect the equipment and the monitor as shown:
2) Switch on the monitor.
3) Press
AUTO ZERO key to zero the system when no weight is added to the tray.
4) Add weights to the tray. Document the weights (W1, W2, W3, W4) when the TOCO
value reaches 25 (V1), 50 (V2), 75 (V3) and 100 (V4).
5) Calculate the non-linearity (NL) with this formula: NL
n
= (1 – ) x 100%.
(n = 2, 3, 4). Error within 10% is acceptable.
TOCO Transducer
TOCO Test Kit
Weight F9 Monitor
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