60
Display
Type
Dual 5-digit, 7-segment backlit LCD
Information
16-character, single line dot-matrix
Energy-saving function
Backlit LCD configurable as ON or Auto-Off after 60s
Logbook*
Electronic record of major process events and calibration data
Real-time clock*
Records time for logbook and auto-manual functions
*Available if option board is fitted
Retransmission outputs
2 (4 optional) fully-isolated standard
Relay Outputs – On/Off
Number of relays
Three, supplied as standard
Five, when ordered with option board
Number of set points
3 supplied as standard or 5 with option card fitted
Set point adjustment
Configurable as normal or failsafe high/low, bandwidth alarm
(composite high/low) or diagnostic alert
Hysteresis of reading
Programmable 0 to 5% in 0.1% increments
Delay
Programmable 0 to 60s in 1s intervals
Relay contacts
Single-pole changeover
Rating 5A, 115/230V AC, 5A DC
Insulation
2kV RMS contacts to earth/ground
Analog Outputs
Number of current outputs (fully isolated)
Two supplied as standard or 4 with option board fitted
Output ranges
0 to 10mA, 0 to 20mA or 4 to 20mA
Analog output programmable to any value between
0 and 22mA to indicate system failure
Accuracy
±0.25% FSD, ±0.5% of reading (whichever is the greater)
Resolution
0.1% at 10mA, 0.05% at 20mA
SPECIFICATION
Conductivity
Range
Conductivity Programmable
0.000 to 1999mS
–1
(uncompensated)
Concentration
0.000 to 1.999 digits
(user configurable)
Selectable concentration ranges
0 to 15% NaOH
0 to 18% HCl
0 to 20%H2SO4
0 to 40% H3PO4
0 to 20% NaCl
User-defined table
Temperature
–20 to 300°C (–4 to 572°F )
Sensor Full Scale Measurement Ranges
(a) TB4 Group A and AC400 cells 0 to 1,999mS
–1
(uncompensated)
(b) TB4 Group B cells
0 to 1,999µS
–1
(uncompensated)
Minimum span
(a)
TB4 Group A and AC400 cells
100.0µS
–1
(b)
TB4 Group B cells
10.00µS
–1
Concentration
5% of the maximum set
concentration range
Temperature
10°C (50°F)
Note
. Refer to corresponding data sheets for process limit
specifications of TB4 and AC400
cells.
Resolution, Display
Conductivity
(a) TB4 Group A cells
0.1 µS
–1
AC400 cells
0.1mS
–1
(b) TB4 Group B cells
0.01µS
–1
Concentration
0.001 digits
(configuration dependent)
Temperature
0.1°C (0.1°F)
Accuracy, Display
Conductivity
± 0.5% measurement range
per decade
Temperature
10°C (50°F)
Display temperature range
–20 to 300°C (–4 to 572°F)
Temperature sensor
Pt1000 or 3k Balco
Temperature coefficient
Programmable 0 to 9.99%/°C and fixed temperature
compensation curves (programmable) for acids and neutral salt.
Reference temperature
25°C (77°F)
Dosing control functions
Long-dose alarm
0 to 10 mins. (user-configurable)
Initial charge function
0 to 30 mins. (user-configurable)
Содержание AX413
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