Hach sc1000 - Manual (Page 8)

6
Specifications
Plug-in Expansion Cards
Component description Plug-in expansion cards for installation in the probe module
Operating temperature –20 to 55 °C (–4 to 131 °F); 95% relative humidity, non-condensing
Storage temperature –20 to 70 °C (–4 to 158 °F); 95% relative humidity, non-condensing
Analog output card
4 x analog current outputs (0–20 mA or 4–20 mA, max. 500 Ohm)
Terminals max. 1.5 mm2 (AWG15)
Analog/digital input card 4 x analog/digital inputs (0–20 mA or 4–20 mA) Terminals max. 1.5 mm 2
Internal relay card
4 x change over contacts (SPDT)
Maximum switching voltage: 250 VAC, 125 VDC
Nominal Switching Current: 250 VAC, 5 A; 125 VAC, 5 A; 30 VDC, 5 A
Terminals max. 1.5 mm2 (AWG15)
Fieldbus interface card Modbus RS485 (YAB021), Modbus RS232 (YAB047) or Profibus DP (YAB020)
DIN Rail Switch Cabinet Expansion Modules
Function
For installation in the switch cabinet. Any expansions required can be combined
when a base module is available.
Enclosure rating IP20
Power supply 24 VDC (max. 30 V) from base module
Operating temperature 4 to 40 °C (39 to 104 °F); 95% relative humidity, non-condensing
Storage temperature –20 to 70 °C (–4 to 158 °F); 95% relative humidity, non-condensing
Base module (LZX915)
Supply of expansion modules with 24 VDC and connection to the sc1000
network
Setting terminating resistor (with DIP switch) for the sc1000 network
Provision of connection for a display module (LXV402) for the configuration of
the system
Base module can supply a maximum of 2000 mA to the extension modules.
Dimensions: 23 x 100 x 115 mm (1 x 4 x 4.5 in.)
Relay module (LZX920)
4 x normally closed into change over contacts (SPDT)
Maximum switching voltage: 250 VAC, 125 VDC
Maximum switching current: 250 VAC, 5 A; 125 VAC, 5 A; 30 VDC, 5 A
Maximum switching power: 150 W
Can be programmed for limit, status-monitoring or for various control functions,
communication status indication by LED.
Terminals max. 2.5 mm2 (AWG 11)
Current consumption: <100 mA
Dimensions: 45 x 100 x 115 mm (2 x 4 x 4.5 in.)
Output module (LZX919)
2 analog current outputs (0–20 mA or 4–20 mA, max. 500 Ohm)
Terminals max. 2.5 mm2 (AWG 11)
Current consumption: <150 mA
Dimensions: 23 x 100 x 115 mm (1 x 4 x 4.5 in.)
Input module (LZX921)
Analog/Digital inputs (can be programmed as 0–20 mA or 4–20 mA), INPUT or
digital INPUT
Internal resistance: 180 Ohm
Terminals max. 2.5 mm2 (AWG 11)
Current consumption: <100 mA
Dimensions: 23 x 100 x 115 mm (1 x 4 x 4.5 in.)