Service Manual

8-2 Model 340 Telemetry System Revision A
2006920-001
Technical Specifications: Transmitter
Transmitter
Table 8-1. Transmitter
Category Technical Specifications
Physical Characteristics
Height:
Width:
Depth:
Weight:
1.8 in (4.5 cm)
5.4 in (13.8 cm)
7.5 in (19.0 cm)
1.75 lbs (0.8 kg)
Environmental Conditions
Ambient Temperature:
Relative Humidity:
Atmospheric Pressure:
Operating Storage
50°F to 104°F (10°C to 40°C) 14°F to 131°F (–10°C to 55°C)
5% to 95%, non-condensing 5% to 95%, non-condensing
700–1060 mbar (525–795 mmHg) 700–1060 mbar (525–795 mmHg)
Certification and Compliance
UL:
FCC:
Industry Canada:
340 Original Release and Plus 340M
UL-544 Listed UL-544 Listed
Complies with FCC Part 90 Complies with FCC Part 95
Complies with RSS-119 Complies with RSS-210
Monitoring Modes
Fetal Heart Rate:
Uterine Activity:
Maternal Heart Rate:
Ultrasound (US) and Fetal ECG (FECG)
External Tocotransducer (TOCO) or Internal Intrauterine Pressure Catheter (IUPC)
Maternal ECG (MECG)
Ultrasound Mode
System:
Transmitter Frequency:
Intensity (I
sata
):
Pulse Doppler
1.151 MHz
<5 mW/cm
2
ECG Mode
Input Impedance:
dc Tolerance:
Common Mode Rejection Ratio:
FECG Sensitivity:
MECG Sensitivity:
>1 GΩ
±1 V
>90 dB
20 µV to 1 mV
0.5 mV to 5 mV
TOCO Mode
Type:
Sensitivity:
Range:
Tocotransducer
20 µV/relative unit
–50 to +250 relative units
IUPC Mode
Type:
Sensitivity:
Range:
dc Strain Gauge
20 µV/mmHg
–50 to +250 mmHg
RF Section
Output Power:
Available Frequencies:
Channel Bandwidth:
340 Original Release and Plus 340M
10 mW 4 mW
430–470 MHz 608–614 MHz
25 kHz 25 kHz
Transmission Range: 340 Original Release and Plus 340M
1640 ft (500 m), line of sight 200 ft (61 m), line of sight