8 | Operating Manual GW 702 | Technical data
5. Technical data
Measurement amplifier GW 702
Supply voltage
230 V AC +6/-10 %, 50/60 Hz
alternatively 110 V AC, 50/60 Hz
Power consumption
10 VA
Fuse
230 V: T(S) 63 mA, 5 x 20 mm
110 V: T(S) 125 mA, 5 x 20 mm
Display
LCD display
• 2 x 16 characters, lit
• Display of measured value, switching states of relays, status information
of sensor and alarm
• Menu language German, English, French and Spanish
Controls
Keypad with 5 keys
Relay
3 contacts, 6 A, 250 V AC, potential-free
Max. 550 VA ohmic resistive load (with RC protective circuit, suppression
element)
• Relay 1, fixed assigned sensor 1 and sensor 2
• Relay 2, fixed assigned sensor 1 and sensor 2
• Relay 3 (alarm), freely assignable sensor 1 and / or sensor 2
Analogue output
0/4 … 20 mA, galvanically isolated
max. working resistance 500 Ω
to be assigned sensor 1 or sensor 2
Number of sensors
Max. 2
Alarm thresholds
2 limits, pre-configured, freely adjustable
Chlorine (Cl
2
)
Chlorine dioxide (ClO
2
)
Ozone (O
3
)
Limit 1
2 ppm
0.2 ppm
0.2 ppm
Limit 2
9.5 ppm
1 ppm
1 ppm
Digital input
1
Interface
RS 485 (option)
Signal generator
-
Dimensions (W x H x D)
165 x 160 x 80 mm
Installation
Wall assembly
Housing material
ABS
Protection class
IP 65
Weight
~ 1.0 kg
Cable entry point
PG connections
3x M12 x 1.5 (cable diameter 3 … 6 mm)
3x M16 x 1.5 (cable diameter 5 … 10 mm)
Connections
Spring terminals for cable up to max. 1.5 mm
2
Operating temperature
0 … 50 °C
Storage temperature
-20 … +65 °C
Air humidity
0 … 90 % rH, non-condensing
