FD 221 Series. The Actual Model # is: ZFD-221 (the “Z” because optional features were added to the basic model). The Serial Number is: 6594. The optional feature added was Liquid CO2 capability.

Programmable Controller with RS232C interface

Stainless Steel Interior

Adjustable High Temperature Fail-Safe

Multipane Viewing Window in Door

Internal Light w/ External Switch

Casters

2” Diameter Access Port & Plug

Liquid CO2 Capability

2 Channel Set Points and Indication

Manual Control

Adjustable PID’s

Optional RS-232C, RS-422 or IEEE-488 Communications

Auto Tuning of all Parameters

Stainless Steel Welded Interior (Vapor Tight)

All chambers have a stainless steel interior of either Series 304 or 316. Humidity models are welded for vapor tight closure.

Adjustable High/Low Temperature Safety

Digital set-digital indicating high/low temperature safety

Manual reset

Visual and Audible Alarms

Independent of Chamber Control

FM Approved

Universal Inputs

Optional Alarm Outputs

Windows

Multipane, up to six (6) panes

Sealed air compartments with desiccant between panes to prevent fogging

Sized for particular chamber

Various sizes available up to 48” x 48”

Completely Sealed in Chamber Door

Internal Light – External Switch

Illuminates entire interior of chamber

Vapor tight enclosure

Independent switch on instrument control panel

Floor Stands

Available for all bench top chambers

Converts to floor model

With or Without Heavy Duty Swivel Casters

Open Front for Bottom Storage

Convenient Height

Access Ports

¾” (1.9 cm)diameter port and plug

2” (5cm) diameter port and plug

3” (7.6 cm) diameter port and plug

4” (10.1 cm) diameter port and plug

5” (12.7 cm) diameter port and plug

6” (15.2 cm) diameter port and plug

Special Ports Available

Slotted Ports Available with Removable Plugs

CO2 or Ln2 Option:

Fast pulldown rates

Will handle larger live loads

Economical

*Liquid CO2 Capability