APPENDIX B — SPECIFICATIONS
pg. 57
Curtis Model 3301T Digital Instrumentation – September 2021
APPENDIX B — SPECIFICATIONS
Nominal Voltage
12–96VDC
Minimum Voltage
9VDC
Maximum Voltage
120VDC
Minimum Startup Voltage
10VDC
Operating Current
•
Keyswitch on
: 33–209mA
•
Keyswitch off
: 24–110mA
•
LCD Heater On
: 463–685mA
Dimensions
136
×
80
×
47.2 mm
Operating Temperature
•
With the LCD heater
: –40°C to + 70°C
•
Without the LCD heater
: –20°C to + 70°C
Storage Temperature
–40°C to + 85°C
Humidity
Designed to the following requirements:
•
Soak
: EN 60068-2-78
•
Cyclic
: EN 60068-2-30
Ingress Protection
Designed to the requirements of EN 60529:
• Face is sealed to IP65.
• Rear is sealed to IP65 for electronic components and to IP40 for the connector.
Optional parts can increase the connector’s protection to IP54.
Salt Spray (Fog)
Designed to the requirements of ASTM B 117-73 as per SAE J1810.
Shock
Designed to the requirements of EN 60068-2-27.
Vibration
Designed to the following requirements:
•
General
: EN 60068-2-6
•
Random
: EN 60068-2-64
•
Resonance
: EN 60068-2-6
Safety
Designed to the requirements of EN 61010-1: 2010, Part 1.
CE
Designed to the following requirements:
•
EMC
: EN 12895: 2015.
•
RoHS
: RoHS directive 2015/863/EU (RoHS 3).
UL
UL recognized component as per UL 583.
Model Encodement
The model number encodement is 3301T-
ZYYY
where:
•
Z
indicates whether the model includes the optional LCD heater:
–
5 = not included
–
7 = included
•
YYY
is a sequential number code.
Note:
Regulatory compliance of the complete system with the 3301T installed is the responsibility of the OEM.