Purchase specification_Walk-in Environmental Chamber 2024.pdf

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Environmental Chamber - 309 MMXG Hill AFB, UT
Solicitation number
FA822724S0003
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This document is a Purchase Specification for a Walk-in Environmental Chamber. The key details are:

The required chamber must have minimum interior dimensions of 90"W x 86"D x 86"H, with a maximum exterior of 192"W x 156"D x 100"H, and a maximum weight of no limit. It must have a 2000 lbs floor rating, an external remote condenser, and 2"access ports for instrumentation cables. The chamber must have a single 90" door or split double doors. It requires 2-stage cooling with a remote external condenser and interior ground bars for ESD protection.

The temperature performance must include a ramp rate of 120°F to 0°F in 25 mins, 0°F to 120°F in 25 mins, a range of 70°F to 185°F, and control within ±1.5°F. The power requirement is 460V, 60Hz, 3-phase. There are restrictions on EMI, RF, WiFi, and wireless signals. The maximum operation sound level is not specified.

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Purchase specification for Walk‐in Environmental Chamber

1. Weight, Dimensions & Configuration

a. Interior Dimensions:

i. Minimum: 90”W x 86” D x 86”H

b. Exterior Dimensions:

i. Maximum: 192”W x 156”D x 100”H

c. Weight:

i. Maximum: None

d. Floor Rating:

i. Minimum: 2000 lbs total weight in chamber

e. External remote condenser

f. Access port:

i. 2x 4” for instrumentation cables

g. Door:

i. 90” minimum across. Either one large door or split double door.

h. 2 stage cooling:

i. 2nd stage remote external condenser

i. ESD:

i. Interior ground bars to ground test assets. Ties in to facility ground.

2. Temperature Performance

a. Ramp Rate

i. Minimum: 120°F to 0°F in 25 mins

ii. Minimum: 0°F to 120°F in 25 mins

b. Temperature Range

i. ‐70°F to 185°F

c. Temperature Control

i. Be able to control to ≤ +/‐1.5°F of a set point after temperature stabilization

3. Power

a. Supply Voltage: 460 volt, 60 Hz; 3 phase

4. EMI

a. No RF, WIFI, or any wireless signal capability

5. Operation Sound Level:

a. Maximum level: <80 dBA

6. Control System:

a. Digital Controller with touch screen

i. Ability to create temperature profiles that can be saved

ii. Minimum ability to have 40 steps in a profile

iii. Minimum ability to have 100 cycles of a profile

iv. Ability to view temperature set point and chamber temperature during operation

v. Ability to autostart profile

vi. Ability to view real time trend graphs

vii. Data logging with custom file names

viii. Access data files directly from controller

ix. Ability to download profiles

x. Fully configurable alarm settings and maintenance alerts

xi. Selectable power failure/recovery options

7. Dry Air Purge System

a. Minimum of 2 CFM of air flow supplied by shop

b. Has a flow meter

File details come from the government source that posted it. Updated .