Measurement Computing LGR-5320 Series - Manual (Page 6)

6
Chapter 1
Introducing the LGR-5320 Series
The LGR-5320 Series includes the following devices:
 LGR-5325
 LGR-5327
 LGR-5329
LGR-5320 Series devices are USB 2.0 full-speed devices supported under Microsoft Windows 7/Vista/XP (32-
bit or 64-bit). LGR-5320 Series devices are compatible with both USB 1.1 and USB 2.0 ports.
Each LGR-5320 Series device provides the following features:
 a multiplexed 16-bit A/D converter
 16 single-ended (SE) or eight differential (DIFF) analog input channels
 16 digital input connections
 screw terminals for field wiring connections
The LGR-5325 has a maximum sampling rate of 100 kS/s and software-selectable analog input ranges of
±10 V, ±5 V, and ±1 V for all analog input channels. The LGR-5327 and LGR-5329 each has a maximum
sampling rate of 200 kS/s and software-selectable analog input ranges of ±30 V ±10 V, ±5 V, and ±1 V for all
analog input channels.
The LGR-5329 provides 16 isolated digital input connections including PLC thresholds with 30 V tolerance,
and 500 V of isolation between the digital inputs and the host computer, analog inputs, and counter inputs. The
LGR-5325 and LGR-5327 provide 16 digital input connections including TTL thresholds with 28 V tolerance.
You can configure the DIO connections on all LGR-5320 Series devices to detect and log events based on
change of state or pattern recognition.
LGR-5320 Series devices have a single digital alarm output that is implemented as a single Form C relay. You
can configure the relay to energize when the trigger condition is met and data is being recorded.
Each LGR-5320 Series device has four counter channels that support the following counter modes:
 Counter (general event counting)
 Period counting
 Pulse width counting
 Edge-to-edge timing
 Up/down counting
The LGR-5327 and LGR-5329 counter channels also support 1X, 2X, and 4X encoder counting. You can
configure each encoder counter channel for single-ended or differential mode using an external switch.
LGR-5320 Series devices save data to and retrieve data from a Secure Digital (SD) or Secure Digital High
Capacity (SDHC) memory card. All devices require 9 VDC to 30 VDC of external power.
Connect all signals to the screw terminals.