Operating Manual
Page 13
3. Technical Data
3.1. Basic Lineguard 97 Controller
Mains voltage
230/115 V AC + 6 % -10 %, 50 - 60 Hz
Power consumption
25 W
Fuse protection
2,5 A delay
Protection class
I
Protection category
IP 65
Power output, 0(4) - 20 mA
Option: galvanic isolation for power outputs
max. load 600
maximal output current (distribution), adjustable
Accuracy
< 1 % of measuring range end
Fault indications
floating fault indication relay
Relay contact loading
3 A/230 V ohmic load
(with RC contact-protection circuit) to drive an
electromotor the starting current is relevant. The
starting current may be 3 to 7 times above the
nominal current.
Weight
2.5 kg
Permissible operation temperature
0 to +45 °C
Permissible storage temperature
- 20 to + 60 °C
Dimensions
224 mm 8.818 inches / 290 mm 11.417
inches / 95 mm
3.700 inches (W/D/H)
3.2. pH measuring
Measuring range
0 - 14 pH, 2 - 12 pH, 3 - 8 pH, adjustable
Accuracy
< 1% of measuring range end
Resolution
0.01 pH
Temperature compensation
Manual, 0 - 100 °C
Automatic with Pt 100
2/3-wire connection possible 0 - 100 °C
Temperature unit °C or °F
Calibration
Two freely selectable buffer values with plausibility
control, checking for electrode faults
(mutual conductance < 56 mV) Auto-read function
for stable measured value
3.3. ORP (Redox) Measuring
Measuring range
0 - 1000 mV
-500 mV - 500mV
Accuracy
< 1 % of measuring range end value
Resolution
1 mV
Calibration
Single-point calibration with plausibility control,
auto-read function for stable measured value
capturing
