Thermo Scientific 3911, Operating Manual

Page: 53 / 76

Forma Model 3900 Series | 12-3
Specifications |
Chapter 12
Models
Temperature Performance
with Humidity Control (at
ambient temperature 22°C
+/-3°C)
Unit 3911 3913 3940 3949
Heat up / cool down time
(work space unoccupied),
from ambient temperature
of 22°C (72 °F) to (accord-
ing to DIN12880), typical
value / max. value
min
5°C (41°F) /
80% RH
30°C (86°F) /
75% RH
60°C (140°F) /
75% 35/40
15/20
47/52
65/70
20/25
80/85
Recovery time (work space
unoccupied), (door opening
30 sec, according to
DIN12880), typical value /
max. value
min
5°C (41°F) /
80% RH
30°C (86°F) /
75% RH
60°C (140°F) /
75% 7/9
5/7
10/13
6/8
2/4
10/13
Temperature & humidity sta-
bility, temporal mid of work
space according to
DIN12880 at 20 °C to 37 °C
(68 °F, 99 °F)
°C /
% RH
≤
± 0.1
≤ ± 5
Temperature uniformity
between 25°C to 37°C,
spatial according to
DIN12880 at typical value /
max. value
°C ≤ ±0.3 /
± 0.4
Calibrated Climate Condi-
tions / Temperature Condi-
tions (measuring point is
chamber center)
°C
(°F) /
% RH
40 (104) / 75
Models
Water performance data
for humidity system
Unit 39011 3913 3940 3949
Water supply Carboy or water system
Water specification min
Demineralized water
Resistance = 0.5 - 1 M Ω cm