Thermo Fisher Scientific Alpha pH 1000 - Manual (Page 31)

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9 TECHNICAL SPECIFICATIONS
pH Range 0.00 to 14.00 pH
Resolution 0.01 pH
Relative Accuracy ± 0.01 pH
mV Range 0 to 100.0% / -1000 to +1000 mV
Resolution 0.1% / 1mV
Relative Accuracy
± 1 mV
Temperature - 9.9 to + 125.0 o C
Resolution 0.1
o
C
Relative Accuracy
± 0.5 o C
Sensor Pt 100 /Pt 1000 (jumper selectable)
Temperature Compensation Auto / manual (reference at 25.0
o
C)
Set-point and Controller Functions
limit controller Function (switchable)
pulse length/ frequency controller
Controller characteristics proporational controller
Adjustable period with pulse length controller 0.5 to 20 sec.
Adjustable period with pulse frequency controller 60 to 120 pulses/min
Pickup / Dropout delay 0 to 2000 sec.
Switching pH hysteresis 0.1 to 1 pH
Switching ORP hysteresis 1 to 10.0% / 10 to 100 mV
Contact outputs, controller 2 potential-free change-over contacts
Switching voltage / current / power max. 250 VAC / max. 3A / max. 600 VA
Alarm Functions
Function (switchable) Latching / pulse
Wash cycle 0.1 to 199.9 hrs
Wash duration 1 to 1999 s
Pickup delay 0 to 2000 s
Switching voltage / current / power max. 250 VAC / max. 3A / max. 600 VA
Electrical Data and Connections
Power Requirements 110 / 220 VAC (jumper selectable)
Frequency 48 to 62 Hz
Power Consumption max. 7 VA
Signal Output / Load 4 to 20 mA, galvanically isolated
Load Max. 600 Ω
pH / ORP input BNC, screw terminals
Connection terminal Terminal blocks 5-pole / 17-pole, removable
Mains fuse / fine wire fuse slow-blow 250 V / 100 mA
EMC Specifications
Emissions According to EN 50081-1
Susceptibility According to EN 50082-1
Environmental Conditions (For Indoor Use)
Altitude Up to 2000 m
Maximum Relative Humidity 80% up to 31 o C decreasing linearly to 50%
at 40
o
C
Power Supply Mains supply voltage fluctuations not
exceeding +10% of the nominal voltage
Transient Overvoltages Category II
Pollution Degree Category II
Ambient temp. operating range -10 to +50 o C