Automated Fly Food Dispenser


GX-281 Liquid Handler Specifications

Manufacturing Standards

Meets applicable safety and EMC certification standards; UL and CE certified

Arm Speed

X and Y: 0.01-600.00 mm/sec

Communication Interface

RS-232 or GSIOC; Four inputs (contact closure, TTL), four relay outputs, four switched +24V DC 1A outputs, one safety input and one analog input

Liquid Handling†

Reproducibility: <2%
Accuracy: ±2% for (100 µL - 25 mL) water

Front Panel

ON/OFF and STOP soft keys, LED indicator for power

Horizontal Motion Strength

X: 1.4 kg (3 lbs.)
Y: 0.7 kg (1.5 lbs.)

Bed Capacity

Adaptable to meet customer specific requirements

Power Requirements

Frequency: 50-60 Hz
Voltage: 100-240V (Universal Input)
Current rating: 5.0A for 100-120V or 2.5A for 220-240V
Power consumption: 500W maximum

Probe Positioning Performance

Accuracy: ±0.05 mm in X/Y dimensions
Repeatability: ±0.025 mm in X/Y dimensions

Fraction Collector 3-way Valve

3-port, PTFE, 114 µL internal volume, 10 µL dead volume, up to 200 mL/min

Sampler Type

X/Y with stationary rack design


Customer Software

Flow Rate

1.4 L/min

Display Panel

Two lines of 40 alphanumeric characters, vacuum fluorescent display


68 kg (150 lbs.)


88.9 x 76.2 x 96.5 cm (35 x 30 x 38 in.)

† Contact Gilson Customer Service to learn what methods and conditions were used to obtain the values.

Computer Specifications


Intel® Core i7 (2.7 GHz)

Memory (RAM)

 8.0 GB

Hard Drive

 500 GB - 1 TB (50 GB at Install)

I/O Ports

One serial port required for Gilson server: Native or Express Card RS-232 Adapter*

Additional serial ports for GEARS devices: USB to RS-232 Adapter*

One Ethernet Port

Additional Drive



Resolution: 1440 x 900 (or greater)

Colors: True Color (32-bit)

Text Size: 100%

Operating System

MICROSOFT® Windows® 7 Professional SP1 (64-bit)

MICROSOFT® Windows® 7 Professional SP1 (32-bit)

MICROSOFT® Windows® 7 Ultimate SP1 (32-bit)

*Contact your local Gilson Representative for recommended vendors and models.

Test tube