LTH Electronics HPT63, Руководство по эксплуатации

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1 Introduction
1
1 Introduction
1.1 About the HPT63
The HPT63 is a microprocessor-controlled pH or Redox transmitter. The unit utilises
a multifunction LCD to display readings and provide feedback to the operator. It is
available with different options to provide fully configurable control, alarm and
feedback with up to two relays and two 0/4-20mA current output sources.
1.2 Unit Specification
Measurement input Single ended or differential with solution ground.
pH
Separate glass and reference electrode pair. Separate
Antimony and reference electrode pair or combination electrode
Redox
Separate metal and reference electrode pair or combination
electrode.
Other manufacturers’ sensors can be accommodated.
Ranges of measurement 0.00 to 14.00pH
-1999mV to +1999mV
-50
° C to +300 ° C
Accuracy ±
0.05pH
±
3mV
Linearity ± 0.1% of range
Repeatability ±
0.1% of range
Operator adjustment
pH
Antimony
Redox Slope
60-120%
60-120%
NA Offset
3 to 11 pH
-4 to +4 pH
-400 mV to +400 mV
Temperature sensor PT1000 RTD or 3K Balco thermistor.
Temperature accuracy ±
0.2
°
C
Operator adjustment (Temp) ±
50
°
C, or
±
122
°
F
Temperature compensation type
Automatic or manual 0
°
C to 100
°
C
Off-Line Facility
( for calibration and
commissioning ) The relays are de-energised and the current output is held at
the last on-line value. Can be initiated remotely by a contact
closure.
Ambient Operating Temperature
-20
°
C to +50
°
C (-4
°
F to +122
°
F) for full specification.
Ambient temperature variation ±
0.01% of range /
°
C ( typical )
Display Custom back-lit LCD module. 4 character (& sign) 7 segment
(20mm high) for measured value, 2x3 dot matrix for units
indication, and 1x16 dot matrix for information and
programming.