Specification - ABB 4623 Manual

10 SPECIFICATION

Display
Measured value:
5-digit, 7-segment back-lit l.c.d.
Information:
16-character, single line, dot matrix back-lit l.c.d.
Ranges:
programmable 0 to 1.00µS/cm up to 10.00µS/cm
Scaling:
µS/cm at xx °C (°F).
Accuracy:
±1% f.s.d., ±1 digit.
Linearity:
±0.2% f.s.d.
Resolution:
±0.1% f.s.d.
Temperature measuring range:
–10°C to 110°C (14 to 230°F).
Temperature compensation:
–10°C to 110°C (14 to 230°F) automatic.
Temperature coefficient:
Fixed at 2.0%/°C (1%/°F).
Temperature sensor:
Pt100 resistance thermometer.
Reference temperature:
25°C (77°F) fixed.
Set Points and Relays
No. of set points:
Two.
Set point adjustment:
Programmable.
Set point hysteresis:
±1% of setpoint (fixed).
Local set point annunciation:
Red l.e.d.
No. of relays:
Two.
Relay contacts:
Single pole changeover
Rating: 250V a.c.
3A a.c.
Loading:
(non-inductive) 750VA
(inductive) 75VA
Insulation, contacts to earth:
2kV r.m.s.
Retransmission
No. of retransmission signals:
One, fully isolated – standard.
Two, fully isolated – optional.
Output current:
0 to 10, 0 to 20 or 4 to 20mA programmable.
26
Output ranges:
Accuracy:
Resolution:
Max. load resistance:
Serial communication:
Power Supply
Voltage requirements:
Power consumption:
Error due to power supply variation:
Insulation:
Environmental Data
Operating temperature limits:
Storage temperature limits:
Operating humidity limits:
Mechanical Data
Mounting:
Protection:
50V d.c. max.
3A d.c. max.
Overall dimensions:
30W max.
3W max.
Panel cut-out:
Weight:
Retransmission 1:
Zero – 0, fixed.
Span – 10 to 100% of the display range.
Retransmission 2 (optional):
Programmable – Conductivity or Temperature
Conductivity – as per Retransmission 1
Temperature – 10 to 150°C (14 to 302°F),
min. span 20°C (36°F)
±0.25% f.s.d.
0.1% of f.s.d.
750Ω (20mA max.).
RS422/RS485 (optional).
115V nom. ±15V, 50/60Hz.
230V nom. ±30V, 50/60Hz
< 10VA a.c.
less than ±2% for +6% -20% variation from nominal supply
voltage.
mains to earth 2kV r.m.s.
–20° to 55°C (–4 to 131°F).
–25° to 55°C (–13 to 131°F).
up to 95% RH non-condensing.
Model 4623 wall mounting, Model 4628 panel mounting.
Model 4623 IP66, Model 4628 IP66 (front only).
Model 4623 – 160 x 250 x 68mm
(6.3 x 9.84 x 2.68in.) – see Fig. 3.3
Model 4628 – 96 x 96 x 191mm
(3.78 x 3.78 x 7.52in.) – see Fig. 3.5
+0.8 +0.8
92 mm x 92 mm (3.62
–0.0 –0.0
1
Model 4623 – 2kg (4 / lb)
2
Model 4628 – 1.5kg (3 1 / lb)
4
+0.03 +0.03
x 3.62 in.)
–0.00 –0.00