Agilent Technologies 7683 - Water bath and pump specifications; Coolant

Operation Guide
Controlling Sample Vial Temperatures
24
Water bath and pump specifications
The water bath and pump system used to control the sample vial temperatures
must meet these specifications.
• The components must meet national standards for safety requirements, be
suitable for unattended operation, be suitable for continuous operation, and
be controllable for high-temperature protection.
• The minimum cooling power required for the water bath is 100 W at bath
temperatures of 5°C.
• If you use a built-in pump, it must be suitable for external circulation of
liquid and for connection of 1/4-in. id (6.35 mm) tubing.
• If you use a pressure pump, it must maintain a pressure between 1.5 and
2.5 psi.
• If you use a suction pump, the pump vacuum cannot exceed –4 psi.
Coolant
Use distilled water as your cooling fluid. If desired, you may add a maximum of
3% ethylene glycol to the distilled water to prevent freezing.