GREYHOUND MODEL H-705 HPLC Column Heater
FEATURES
Updated electronics with higher performance and increased accuracy
Front keypad control with 5-digit, blue LED display
Compact footprint requires less bench space
Large capacity with no need for special blocks or inserts
Temperature is maintained over entire length of fluid path
Universal power supply
Self-resetting thermal safety cutoff at 118°C
Anodized, solvent-resistant aluminum column chamber
Temperature changes throughout the day, and even drafts in your laboratory can
adversely affect results. The H-705 column oven accurately maintains temperature
within ± 0.2°C to provide precise control and repeatable results that increase the
accuracy and consistency of your chromatography.
All critical elements—columns, injector, and precolumns—are enclosed in the oven
chamber. Constant temperature is maintained over the entire length of the fluid path.
Mobile phase is used as the transfer medium so temperature is unaffected by
flow rate. The mobile phase passes through an innovative preheater plate within
the oven chamber before connecting to the column. The tubing mounted within
this plate is 0.010" ID x 50 cm long. Maximum delay volume is 25 µL, though the
tubing is crimped in a saw-tooth configuration to minimize volume and optimize
heat transfer, as a result, delay volume is only 7.5µL.
SPECIFICATIONS
Temp Range: 10° above ambient to 100°C
Recomended Flow Range: Up to 8mL/min
Temp Set Increments: 0.1°C increments
Temp Accuracy: ±2°C over entire range. The setpoint changes slightly depending on composition and mobile phase flow rate
Temp Repeatability: ±1°C
Temp Stability: ±0.2°C
Thermal Safety cutoff: 118°C, self-resetting
Stabilizing Time: 30 min to 100°C for "ready" at 2mL/min. For analyses requiring high precision, wait 30 min after the READY light illuminates before beginning an analysis
Average Cooling Time: 30 min to 10°C above ambient at 2mL/min from 100°C (with cover off)
Column Capacity: Up to six (6) analytical or GPC columns, Up to three (3) 3/8" x 30 cm columns, or four (4) 1/4" x 30 cm columns
Chamber Material: Anodized, solvent resistant aluminum
Power Requirement: 100-240 VAC (+/- 10%), 50/60 Hz, 120 W
Dimensions: (h x w x d) External: 6.4" H x 5.1" W x 19.6" D (16.3 x 13 x 50 cm); Internal: 1.6" H x 2.7" W x 16.2" D (4.1 x 6.9 x 41 cm)
Weight: 15 lbs (6.8 kg)
Control: Front keyboard control, blue LED, 5-digit display