Thermo Scientific Alpha pH 800, Manual

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8 TECHNICAL SPECIFICATIONS
pH Range -2.00 to 16.00 pH
Resolution 0.01 pH
Relative Accuracy ±
0.01 pH
mV Range - 1000 to +1000 mV
Resolution 1 mV
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
Function (switchable)
Set-point controller
Controller characteristics Limit controller
Pickup / Dropout delay 0 to 2000 sec.
Switching pH hysteresis 0.1 to 1 pH
Switching ORP hysteresis 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
Electrical Data and Connections
Power Requirements 110 / 220 VAC (jumper selectable)
Frequency 48 to 62 Hz
Power Consumption max. 0.75 VA
Signal Output / Load
4 to 20 mA, galvanically isolated / max. 500
Ω
pH / ORP input BNC
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 exc 10% of
the nominal voltage
Transient Overvoltages Category II
Pollution Degree Category II
Ambient temp. operating range 0 to +50
o
C
Mechanical Specifications
Dimensions (control panel housing - L x H x W)
175 x 96 x 96 mm
Weights (control panel housing) max. 0.7 kg
Material ABS with polycarbonate (front housing)
Insulation (Front / Housing) IP 54 / IP 40