Teledyne 3350 - Microprocessor based control room monitor for personnel safety User Manual

Page 37

A-1

Alarm Oxygen Monitor

Appendix

Teledyne Analytical Instruments

Appendix

A.1

Specifications

Range:

0-25% Oxygen

Sensitivity:

0.5% of full scale

Accuracy:

±2% of full scale (at constant temperature)

±5% of full scale (over operating temperature
range once the system has reached equilibrium)

Response Time:

90% in less than 20 seconds at 25°C (B-3 cell)

Operating, and Storage Temperature:

0-50°C

Relative Humidity:

0-95% Non condensing

Maximum Altitude:

6562ft (2000 meters)

Reproducibility:

± 1% of full scale

Sensor Type:

B-3

Display:

Light emitting diode display - LED.

Battery Life:

48 hours (non-alarm condition) non-failsafe

17 hours (non-alarm conditions) failsafe

Power Requirements:

AC 100 to 240VAC @ 50/60 Hz, 0.3A MAX
Battery Backup version charges and maintains a
12 VDC lead acid battery.

Signal Output:

Voltage: 0-10 VDC, Negative Ground (10mA
MAX)

Current: 4-20 mA, Negative Ground (15V
MAX open circuit) 10VDC/500ohms maximum
operating range.

Audible Alarm:

12-15 VDC

4.3mA Max.

Range ID:

0-10VDC (0-10mA MAX) (80mA short circuit)

Enclosure:

Wall Mounting, NEMA-4 enclosure.

Approx. 8"(W) x 10"(H) x 6"(D)

Alarms: Factory Set:

CAUTION = 20.0%
DANGER = 19.5%

CELL FAIL

Audible Buzzer

Visual Red, Indicator Lamps