Specifications
Page 7
54400_spec.fm Specifications
Alarm Relay Outputs: Two unpowered SPDT relays each rated at 5 A
resistive, 240 V ac maximum. Can function as sample set point alarms (high
or low) or as a system warning indicator or a system alarm indicator. Use
either high voltage (greater than 30 V RMS and 42.2 V PEAK or 60 V dc) or
low voltage (less than 30 V RMS and 42.2 V PEAK or 60 V dc). Do not use a
combination of high and low voltage.
Alarm Connection: Connection made by a removable three wire plug
through a ½-inch conduit hole in the case. Wire range: 12–18 AWG.
Recorder Output: One isolated recorder output, 4–20 mA (can be adjusted
to 0–20 mA). Recommended load impedance 3.6 to 500 ohms.
Recorder Output Connections: Connection made by a removable three
wire plug through a ½-inch conduit hole in the case. Wire range: 12–22 AWG.
Optical
Light Source: Class 1 LED (light emitting diode) with a peak wavelength of
520 nm; 50,000 hours estimated minimum life
Performance
Operating range: 0–5 mg/L free or residual chlorine
Accuracy: ±5% or ±0.035 ppm whichever is greater
Precision: ±5% or ±0.005 ppm whichever is greater
Detection Limit: 0.035 ppm
Cycle Time: 2.5 minutes
Calibration: Uses default calibration curve
Power Switch: User accessible power switch is required.
Recorder: One 4-20 mA/0–20 mA
Alarm Relay Outputs: Two SPDT relays, 5A resistive load at 240 V ac. Can
function as sample set point alarms (high or low) or as a system warning
indicator or a system alarm indicator.
Optional External Outputs: Hach AquaTrend
®
Network Interface
Environmental
Storage Temperature Range: -40 to 60 °C (-40 to 140 °F)
Operating Temperature Range: 5 to 40 °C (41 to 104 °F)
Humidity: 90% at 40 °C (90% at 104 °F)
Air Purge (optional): 0.1 CFM instrument quality air at 20 psig maximum,
¼-inch OD tubing
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