Appendix A — Specifications Page 43
Appendix A — Specifications
% RH range 10 to 90% RH at 77°F (25°C)
Temperature range 68 to 86°F (20 to 30 °C) May be used with Tempera-
ture-Controlled Water Bath/Circulator. Humidity limited by
surface temperature of internal walls and cover (dew point
in chamber must be less than interior surface temperature
to avoid condensation).
Response time 10 minutes for 63% step change. 30–40 minutes to full
stability
Accuracy ±1% RH from 10% to 70% RH
±1.5% RH from 70 to 90% RH
±0.3°F (0.15°C) dew point at 77°F (25°C)
±0.3°F (0.15°C) dry bulb at 77°F (25°C)
Analog outputs Two (humidity and temperature), each user-scalable,
4–20mA/0–5VDC
Power 115 or 230 VAC ±10%, 50/60Hz single phase
Digital interface Two RS-232 ports for reference and generator interface
Prostep software Windows 95/98 or above required. Supplied on CD ROM
with Operator’s Manual (PDF) and HCON Humidity Conver-
sion Software.
Approvals CE approved. Certifications supplied: Certificate of NIST
traceability and functional test data
Display Three LEDs, 0.5" (1.3cm) high, 7-segment
Shows Set Point (%RH), Actual % RH, and Temperature
0.1% RH/°C/°F resolution
Workspace dimensions 11" by 9" by 6.5" (28 by 23 by 16.5 cm)
Approx. 644 in
3
(10.6 liters)
Overall dimensions 23"L by 19"W by 13"H (58 by 48 by 33 cm)
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