Firma:              California

Modell:            ZRH

Kommentar:   Dokumente engl.

FEATURES

• Microprocessor controlled
• Single source, single beam optics
• Direct readout in engineering units
• Linear output
• Low sensitivity to vibration
• 1 or 2 components, multiple ranges
• Seif diagnosis function
• No optical alignment required
• RS-232C interface
• Easy maintenance
• 19" rack mountable

APPLICATIONS

·         Combustion efficiency:

            Boilers, incinerators & furnaces (CO,CO ₂ ,SO ₂ )

            Commercial ovens (CO, CO ₂ )

·          Controlled atmospheres:

            Heat treating (CO, CO ₂ , CH ₄ )

            Greenhouses (CO ₂ )

            Fermentation (CO ₂ )

            Air liquification (CO ₂ )

·          Landfill emissions (CO ₂ , CH ₄ )

·          Process chemical gas analysis

·          Respiration studies:

            Single breath lung diffusion (CO)

·          Stack gases: CEM (CO, CO ₂ ,SO ₂ )

·          Vehicle emissions

DESCRIPTION

The Model ZRH is a single or dual component non-dispersive infrared (NDIR) gas analyzer used for measuring CO, CO ₂ , CH ₄ and SO ₂ achieves high accuracy and provides multiple function and ease of Operation through the use of a microprocessor. lt is available in 19-inch rack, panel or tabletop mountings.

Zero and span calibrations are easily accom­plished by pressing the appropriate key on the front panel.

The ZRH has an improved single beam optical system which provides superior Per­formance to conventional double beam analyzers. lt is easy to maintain and offers excellent Jong term stability. The ZRH is ideal for continuous measurement in the combus­tion control of burners, incinerators and fur­naces as well as CEM-stack systems.

The dual cell type of transmission detector minimizes interferences from other gas com­ponents.

The ZRH optical design and modular con­struction assures Iong term reliability.

SPECIFICATIONS

MEASURABLE GAS COMPONENTS:

          Single-component, multiple range analyzer: CO2, CO, CH4 and SO2.

          Two-component multiple range analyzer: Any two Ranges:

                                               Up to 3 ranges (optional)

                                               200 ppm to 100%

                                               Range ratio—maximum 5 to 1

MEASURING SYSTEM:          Nondispersive infrared absorption (NDIR) method, single light       source - single beam

OUTPUTS:                              Analog 4 to 20mA DC, and simultaneous

                                               0 to 1 mV or 0 to 1V or 0 to 5V or 0 to 1OVDC selectable

                                               RS-232C

REPEATABILITY:

                                               1st range (low range): Within ±0.5% of full scale

                                               2nd range (high range): Within ±1% of full scale

ZERO DRIFT:                         Within ±1% of full scale/24 hours

SPAN DRIFT:                          Within ±1% of full scale/24 hours

RESPONSE TIME:                 Within 3 seconds, depending on cell length and flow rate

LINEARITY:                             ±1% of full scale

NOISE:                                    ±0.5% of full scale

POWER SUPPLY:                  100, 115, 200 (±10%) VAC, 50/60 Hz

POWER CONSUMPTION:     37VA max.

AMBIENT TEMPERATURE:   23-113°F (–5 to +45°C)

AMBIENT HUMIDITY:              Less than 90% RH non-condensing

ENCLOSURE:                        Steel casing, for indoor use

DISPLAY:                                4 digit LED for concentration display
                                               4 digit LED for sub-display

OUTPUT HOLD:                     Output value can be held during manual or automatic        calibration function

MEASURED GAS TEMPERATURE: 32-122°F (0 to 50°C)

                                               20-50°C for water vapor applications

WARM-UP TIME:                    Approximately 1 hour

GAS INLET/OUTLET, PURGE GAS INLET SIZE: NPT ¼” internal thread

MEASURED GAS FLOW RATE: 0.5 to 2 liters/min.

PURGE GAS FLOW RATE:   1 liter/min.

DIMENSIONS:                         Rack Mount 5%"H x 19"W x 17½"D

                                               (133mm x 483mm x 448mm)

                                               Panel Mount 514"H x 17½"W x 17½"D

                                               (133mm x 443mm x 448mm)

                                               Table Top 534"H x 17½"W x 17½"D

                                               (145mm x 443mm x 448mm)

WEIGHT:                                 Approximately 27 Ibs. (12 kg)