7
Output Volume For data collection systems
• Jumper selectable for: one Form-C or two Form-A
• Jumper selectable pulse width (default = 62.5 msec.)
• One mechanical (Dry-reed) switch for uncorrected volume (second switch optionally available)
• SPA Board optionally available
Memory
• Audit Trail: 140+ days of hourly
• Event Log: 500+ records
• Alarm Log: 200+ records
• Flash: Resident firmware (upgradable via laptop)
• E
2
PROM: Resident pressure compensation coefficients and critical calibration/
configuration item values
Accuracy
Maximum error at reference conditions including linearity, repeatability and hysteresis.
• Computation: ±0.1% of corrected vol. reading
• Pressure transducer: ±0.25% of full scale
• Temperature Sensor: ±0.5
O
F
• Combined computation: ±0.25% of full scale
(pressure & temperature)
Ambient Temperature Effects
From -40
O
F. to 170
O
F. (-40
O
C. to 76.6
O
C. )
• Computation: ±0.1% of corrected vol. per 100
O
F.
• Pressure Transducer: ±0.3% of full scale per 100
O
F.
• Temperature Sensor: No effect
Long Term Stability
• Computation : ±0.1% of corrected vol. per year
• Pressure Transducer: ±0.3% of full scale per year
• Temperature Sensor: ±0.2% per year
Environmental Conditions
• Ambient Temperature: -40
O
F. to 170
O
F. (-40
O
C. to 76.6
O
C. )
• Ambient Humidity: 0 to 100%
noncondensing
Enclosure
• Cast aluminum alloy, surface treated, baked enamel paint
• Lexan viewing windows for; uncorrected mechanical index, corrected volume LCD
• Stainless steel door latch with padlock hasp
• Mounting plate with gasket and bolts to accommodate most meters
Certifications
• UL certified for Class I, Divisions 1 & 2, Group D
• CSA certified for Class I, Divisions 1 & 2, Groups C & D