Hach-Lange RTC113 ST-Module - Manual (Page 8)

8
Technical data
Analog outputs Output of the polymer dosing, output of the feed flow rate
Number of outputs
One-channel: 2 (KL4012)
Two-channel: 4 (KL4012)
Supply voltage
24 V DC via the power contacts
(Alternatively, 15 V DC with bus termination KL9515)
Signal current 0/4 to 20 mA
Working resistance <500 ohm
Measurement error
± 0.5 LSB linearity error
± 0.5 LSB offset error
± 0.1 % (relative to the measuring range end value)
Resolution 12 bit
Conversion time Approximately 1.5 ms
Electrical isolation 500 V
eff
(K-bus/field voltage)
Digital outputs Control of polymer pump: feed flow rate and fault messages
Number of outputs
One-channel: 4 (KL2134)
Two-channel: 8 (KL2408)
Nominal load voltage 24 V DC (–15 % / +20 %)
Load type ohmic, inductive lamp load
Max. output current 0.5 A (short-circuit proof) per channel
Reverse polarity protection Yes
Electrical isolation 500 V
eff
(K-bus/field voltage)
Equipment properties
Dimensions (W x× H x× D)
One-channel: 191 Ч 120 Ч 96 mm (7.52 Ч 4.72 Ч 3.78 in)
Two-channel: 227 Ч 120 Ч 96 mm (8.94 Ч 4.72 Ч 3.78 in)
Mass Approximately 0.9 kg (approximately 1.98 lb)
Environmental conditions
Working temperature 0 to 50 °C (32 to 122 °F)
Storage temperature –25 to +85 °C (–13 to 185 °F)
Relative humidity 95 %, non-condensing
Miscellaneous
Pollution Degree
Protection Class
Installation Category
Maximum Altitude
2
1
II
2000 m (6.562 ft.)
Protection class IP20
Installation DIN rail EN 50022 35 × 15.0
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