Drager Caleo Incubator Service instructions

Caleo
Electrical Safety Test in the USA and Canada according to
according to UL2601-1 / Table 19.100 and Table IV

1 Visual inspection of basic unit

· Power cord and power cord connection

· Compare fuses to stated ratings on the backside of the Incubator next to the inlet of

the power cord.

2 Safety testing Caleo with Biotek Model 501

· Warning: These tests can expose personnel to hazardous electric shock and must
be carried out with caution.

· Note: Do not plug the Biotek 501 Pro safety analyzer power cord into a line
isolation monitor as inaccurate readings may occur.

· Plug the Biotek 501 Pro power cord into a live AC receptacle, place the power
switch of the Biotek 501 Pro to the "1" or ON position and ensure that the keys
marked "GROUND", "NEUTRAL" and "POLARITY" are in the NORMAL position.

· Note: If the corresponding red LEDs for Ground, Neutral, and Polarity are not lit,
they are in the normal position.

2.1 Chassis Resistance Testing

· Attach the ground lead from the red "Test lead" input to the ground hole of the AC
test receptacle on the Biotek 501 Pro. Select the "Single lead" condition by
ensuring that the "SINGLE/DUAL" key is not illuminated. Press the gray key
marked "RESIST", then press the blue key marked "CAL". When the word CAL is
no longer shown in the display window of the Biotek 501 Pro, you may proceed.

· Remove the red lead from the ground hole of the AC test receptacle and attach the
alligator clip to the free end, leaving the other end plugged into the red "Test lead"
input of the Biotek 501 Pro with the "Single Lead" and "Resistance" conditions still
selected.

Caleo Electrical Safety Test with Biotek Model 501 November 2001 Page 1 of 4

· Plug the Caleo power cord into the test receptacle of the Biotek 501 Pro.

· Perform 5 tests with the probe attached to the following test items of the Caleo:

a) Pole, short

b) Pole, long (option)

c) Rail for accessories next to mains input

d) Air heating

e) Ground stud at the mains voltage distributor

· The resistance reading then shown on the Biotek 501 Pro is the "Chassis
Resistance". Bend and exercise the power cord to check for intermittent reading.

· Maximum allowable test values:

Chassis Resistance 0.2 Ohm

· Afterwards leave alligator clip at the potential ground stud.

2.2 Enclosure Leakage Current (Chassis Leakage Testing)

· Press the gray "LEAKAGE" key, leaving all other selections from the previous test
the same.

· Switch on Caleo and allow the unit to complete the self-test.

· Switch on humidity module (if option is installed).

· Set air temperature and humidity higher than measured values.

· Set up the Biotek 501 Pro for the following tests by using the white keys labeled

"Ground", "Neutral" and "Polarity".

· Note: If the corresponding red LEDs for Ground, Neutral, and Polarity are not lit,
they are in the normal position.

· This is a measurement of the leakage current from the Chassis to earth ground.

Caleo Electrical Safety Test with Biotek Model 501 November 2001 Page 2 of 4