Speci Cations - 3M Bair Hugger 675 Service Manual

Acronym Definitions
EMI Electromagnetic Interference
EMC Electromagnetic Compatibility
ESD Electrostatic Discharge
IV Intravenous
LED Light-emitting Diode
LCD Liquid Crystal Display
RF Radio Frequency
PCS Proximal Control Sensor
PMS Proximal Monitor Sensor
RPM Revolutions Per Minute
Physical Characteristics
Dimensions
14.5" high x 10.5" deep x 11" wide
(36.2 cm high x 26.7 cm deep x 28 cm wide)
Weight 9.93 lb (4.5 kg)
Relative noise level 50 dBA
Hose
Flexible
Length: 80" (203 cm)
Weight: 1.51 lb (0.686 kg)
Diameter: 2" (5.08 cm)
Unit Intake Filter MERV 14*
Recommended Filter Change Every 12 months or 500 hours of use.
*See "Frequently Asked Questions on Filtration" section
Recommended operating environment
Temperature 15°C-25°C (59°-77°F)
Humidity Up to 80% relative humidity (non-condensing)
Altitude Max 2,000 m
Operating temperatures
Temperature control Electronically controlled
Heat generated 2217 BTU/hr (average), 650 W (average)
Time to reach operating 2 - 5 minutes (dependent on blanket model)
temperature
Time required for the contact surface temperature to
heat up from 23 ± 2°C to 37°C (73 ± 2°F to 99°F)
Storage/transport -20°C to 45°C (-4°F to 113°F)
temperature
Store all components in a cool, dry place when not in use.
Safety System
Thermostat Independent electronic circuit; thermal cutoff shuts the heater
OFF to ensure hose end air remains below 56°C (53°C ±
3°C typical).
Alarm system Over-temperature (≤56°C, 53°C ± 3°C typical): red Over-Temp
indicator symbol will flash alternately with the "Wrench"
symbol, alarm sounds, heater and blower shut down, operating
indicator lights turn OFF, and control panel becomes
unresponsive. Remove from service.
Under-temperature (<3°C of selected temperature/setting
for 3 minutes): blue Under-Temp indicator symbol will flash
alternately with the "Wrench" symbol, alarm sounds, heater
and blower shut down, operating indicator lights turn OFF, and
control panel becomes unresponsive. Remove from service.
Fault "Wrench" symbol displays and alarm sounds. Heater and blower
shut down, operating indicator light turns OFF and control
panel becomes unresponsive. Service required.
Overcurrent Dual input fused lines. Fuses are to be accessed and/or
protection replaced only by service personnel.
12
Alarm/Fault Codes
Alarm conditions General fault
Over-temperature
Under-temperature
Fault code indicator Yes on LCD screen
Filter change indicator Yes: Triggered by 500 hours of use
Electrical Characteristics
Heating element 1190 W Resistive
Heater control 3 stage heater
flicker free
Temperature settings Ambient
32° C (89.6° F)
38° C (100.4° F)
43° C (109.4° F)
Temperature accuracy +/- 3° C
Temperature display
0.1° C
resolution
Leakage current Meets UL 60601-1 and IEC 60601-1 requirements
Blower motor Non-adjustable, one speed
Airflow: up to 44 cfm or 20.77 L/s
Operating speed: 4,700 RPM
Power consumption Peak: 1255 W
Average: 650 W
Power cord 15 ft., SJT, 3 cond., 13 A
15 ft., SJT, 3 cond., 15 A
4.6 m, HAR, 3 cond., 10 A
Device ratings 110-120 VAC, 50/60 Hz, 11.7 A, or
220-240 VAC, 50/60 Hz, 6 A, or
100 VAC, 50/60 Hz, 12 A
Fuses Type: Fast acting ceramic fuses, 250 VAC
AMP rating:
Operating speed: F (Fast Acting)
Breaking capacity:
3M™ Bair Hugger Model 675 Warming Unit – Service Manual
12 A (110 - 120 VAC)
8 A (220 - 240 VAC)
15 A (100 VAC)
15 A, 12 A: 750 A @ 250 Vac
15 A, 12 A: 10,000 A @ 125 Vac
8 A: 200 A @ 250 Vac
8 A: 10,000 A @ 125 Vac