Device Name:
MD-1a
Manufacturer:
R.A. Fischer Co., Inc.
Power Source:
AC line
110-115 VAC 60 Hz
Fuse Rating:
3/8 Amp, Type 3AG
Number of Output Modes:
1
Mode Type:
Direct Current (DC)
Constant Current:
No
Constant Voltage:
No
Minimum Output Voltage:
0.0 VDC
Maximum Output Voltage:
150 VDC (no load)
Minimum Output Current:
0.0 DCma
Minimum “Active” Current:
1.0 DCma (load dependent)
Maximum Output Current:
Load dependent:
50 DCma (meter FS) w/nominal 1K load
78 DCma direct short
Output Short Circuit Duration:
1 minute
Line Current Isolation:
Split bobbin transformer (UL #E63829)
Automatic Trip overload:
N/A
Patient Override Control:
N/A
Indicator Display:
Unit Functioning (Active lamp)
Current Level (analog DC milliameter)
Meter ranges:
0-10 DCma w/0.2ma resolution
0-50 DCma w/1.0ma resolution
Meter Accuracy
-20% to +20% FS
Timer/Auto shutoff:
N/A
Typical Leakage current:
Chassis:
10 uA
Electrodes: 5 uA
Maximum Leakage current:
Chassis:
50 uA
Electrodes: 50 uA
Standards:
UL-544 Patient Connected or equivalent
Electrical Safety Certification:
Los Angeles Electrical Testing Laboratory
Application #249247
Note: Output specifications measured at 115VAC line voltage
DEVICE SPECIFICATIONS
The Model MD-1a does not require specific periodic maintenance beyond regular
inspection of the device and accessory cords. Refer to the following page for
recommended inspection procedures.
DEVICE MAINTENANCE
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