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70 Model 7500 Instruction Manual
Teledyne Analytical Instruments
9. SPECIFICATIONS
9.1 Specications
(1) Standard specications
Principle of measurement:
CO2, CO, CH4, SO2; Non-dispersion infrared-ray
absorption method; Single light source and single beam
(single beam system)
O2: Paramagnetic method (O2 sensor built in) or
zirconia sensor method (O2 sensor externally installed)
Measurable gas components and measuring range:
Minimum range Maximum
range
CO2 0 to 500 ppm 0 to 100 vol%
CO 0 to 200 ppm 0 to 100 vol%
CH4 0 to 1000 ppm 0 to 100 vol%
SO2 0 to 1000 ppm 0 to 5000 ppm
O2 (built in) 0 to 5 vol% 0 to 100 vol%
O2 (external
zirconia)
0 to 5 vol% 0 to 25 vol%
• Max. 4 components measurement including O2.
• 1 or 2 measuring range per component.
• Measuring range ratio ≤ 1:5 (except built in O2) ≤ 1:20
(built in O2)
Max. 4 components and 2 ranges are selectable including
an O2 measurement. For measurable components and
possible combinations of measuring ranges, refer to
Tables 1 to 6.
Measured value indication:
Digital indication in 4 digits (LCD with back light)
• Instantaneous value of each component
• Instantaneous value after O2 correction (only in CO,
SO2 measurement with O2)
• Average value after O2 correction (only in CO, SO2
measurement with O2)
• O2 average value
Analog output signals:
4 to 20mA DC or 0 to 1V DC, non-isolated output. Analog
output corresponds to measured value indication in 1:1.
Permissible load; 550Ω max. for 4 to 20 mA DC100kΩ
min. for 0 to 1V DC
* Refer to Table 6, for the channel No. of displayed values
and analog output signals.
Analog input signal:
For signal input from externally installed O2 sensor.
Signal requirement; (1) Signal from Teledyneʼs Zirconia
O2 sensor (TYPE: ZFK7) (2) 0 to 1V DC from an O2
sensor Input section is not isolated. This feature is
effective when an O2 sensor is not built in.
Relay contact output:
1a contact (250V AC/2A, resistive load) Instrument error,
calibration error, range discrimination, auto calibration
status, solenoid valve drive for auto calibration, pump
ON/OFF.
1c contact (250V AC/2A, resistive load) Upper/lower
alarm contact output. Peak count alarm contact output.
* All relay contacts are isolated mutually and from the
internal circuit.
Contact input:
Non-voltage contact (ON/0V, OFF/5V DC, 5mA owing at
ON); Remote range changeover, auto calibration remote
start, remote holding, average value resetting; Isolated
from the internal circuit with a photocoupler. Contact
inputs are not isolated from one another.
*Only M3.5 screw terminals are used for all signal inputs
and outputs.
Power supply:
Rated voltage: 100V to 240V AC
Operating voltage: 85V to 264V AC
Rated frequency: 50/60 Hz
Power consumption: 70 VA max.
Power inlet: Conformity to EN60320 Class I type
Operation conditions:
Ambient temperature: -5°C to 45°C
Ambient humidity: 90% RH max.
Storage conditions:
Ambient temperature: -20°C to 60°C
Ambient humidity: 100% RH max.noncondensing
Dimensions (H x W x D):
19-inch rack mounting type: 177 x 483 x 493mm
Desk-top type: 194 x 483 x 493mm
Mass: Approx. 10 kg
Finish color:
Front panel; Off-white (Munsell 10Y7.5 / 0.5 or equivalent)
Casing: Steel-blue
Enclosure: Steel casing, for indoor use
Material of gas-contacting parts:
Gas inlet/outlet; SUS304
Sample cell; SUS304/neoprene rubber
Infrared-ray transmitting window; CaF2
Internal tubing; Toaron tube
Gas inlet/outlet:
Rc1/4 or NPT1/4 internal thread
Purge gas ow rate:
1 L / min (when required)