The CAPSTAR-100 Carbon Dioxide Analyzer provides continuous measurement of expired CO2 over the range 0-10 percent. Its rapid response time, small sample flow requirements, and long-term stability make it ideal for respiratory gas measurement of rodents and larger animals. The heart of the instrument is a miniature infrared analyzer with exceptional stability, low maintenance, and a linear output. The heated measurement cell prevents water condensation. The SENSORPOD, which contains

the infrared measurement cell, attaches to the front panel by a 1.5m cable. This cell can be removed for cleaning, inspection, or replacement in minutes. The digital display shows CO2 concentration in percent or mmHg, and allows breath-by-breath peak end-tidal reading or continuous rapid response. Calibration is performed with a single calibrated gas and room air. The reliability and ease of operation of the

CAPSTAR-100 make it the perfect instrument for routine respiratory CO2 monitoring. It is the natural companion to our SAR-830 series Small Animal Ventilators for monitoring respiratory status. With the AVS-1 Advanced Ventilator System, it can control end-tidal CO2. It can also be used to monitor unassisted animals. Gas sampling rates of less than 30ml/min can be used, making it possible to monitor animals as small as rats. The fast response time of the CAPSTAR-100 allows end-tidal response plateaus with respiratory rates of 120 breaths/min. A range of accessories is available to ensure easy setup and convenient operation. An accessory pack containing sample tubing, moisture traps, and Nafion®

Standard Features:

• End-tidal peak or continuous readings

• Low sample flow requirements

• Accurate and stable monitoring

• Linear output signal for recording

Applications:

• Respiratory monitoring

• Use with ventilated or unassisted animals

• Suitable for rats and larger animals

• CO2 control with AVS-1 Ventilator

Specifications

Analyzer type . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . .single beam infrared

Sample cell materials . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .sapphire and stainless steel

Sample inlet connector . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . .0.062” OD brass tube

Recommended sample tubing size . . . . . . . . . . . . . . . . . . .0.040" - 0.062" ID Tygon™

Measurement range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .0-10% CO2

Analog output scaling . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . .100mV/% CO2 (0-1V)

Linearity . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .0.1% CO2

Repeatability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .0.1% CO2

Response time (T10 - T90) . . . . . . . . . . .  . . . . . . . . . . . . .100mS at 100 ml/min sampling

Response time (T10 - T90) . . . . . . . . . . . . . . . . . . . . . . . . .130mS at 50 ml/min sampling

Response time (T10 - T90) . . . . . . . . . . . . . . . . . . . . . . . . . .250mS at 30 ml/min sampling

Zero stability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .0.1% (8 hours), 0.2% (24 hours)

Operating temperature range . . . . . . . .  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5 - 40oC

Optical bench temperature . . . . . . . . . . . . . . . . . . . . . . . .48oC, temperature controlled

Warm-up time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5 min to 0.2%, 10 min to 0.1%

Sample rate flowmeter . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . .10 - 50 ml/min

Maximum sample cell pressure . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . .+5 psig

Interference effects: vaporized anesthetic agents . . . . . . . . . . . . .  . . . . . . . .negligible

Interference effects: 50% N2O . .. .0.1% at 0% CO2, 0.6% at 5% CO2 (uncompensated)

Nitrous oxide compensation (internal jumper for 25, 50, 75%) . . . . . . .0.1% at 5% CO2

Controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . .Zero, Span (10-turn dials)

Electrical requirements . . . . . . . . . . . . . . . . . . . . . .120VAC/220VAC switchable, 35VA

Dimensions (main unit) . . . . . . . . . . .  . . . . . . .9W x 5H x 9D in., 23W x 13H x 23D cm

Dimensions (SENSORPOD) . . . . . . . . . . . . . .3W x 2.5H x 3D in., 7.6W x 6.4H x 7.6D cm

Weight . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10 lbs (4.5kg)