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Curtis 3140 Manual – Nov. 2017
The specifications for the Curtis Model 3140 are presented in Table 4.
Table 4 Specifications
ENVIRONMENTAL
Operating Temperature:
Storage Temperature:
Humidity:
Ingress Protection:
Shock:
ELECTRICAL
Signal Name
B+
Heater B+
Signal
Name
B+ (24V)
B+ (28V)
B+ (36V)
B+ (48V)
B+ (60V)
pg. 14
5 — SPECIFICATIONS
–10°C to +85°C (with optional LCD heater: –40°C to +85°C).
–40°C to +85°C.
Soak: Designed to meet EN 60068-2-78.
Test Cab: Damp Heat, Steady State, 10 days at 93% RH (±3%), 30°C.
Cyclic: Designed to meet EN 60068-2-30.
Damp Heat, Cyclic (12hr + 12hr cycle). Test method variant 1. 6 cycles (each
Test Db:
cycle is 24hrs), 90% RH.
Designed to meet EN 60529
Face: IP65; Rear surface: IP54.
Applicable to enclosed units only: designed to meet EN 60068-2-27: 3 shocks
in all 3 axes in both directions (18 shocks in total), 500 m/s², 11ms, half sine
Vibration: The following vibration specifications are applicable to enclosed units only:
Designed to meet EN 60068-2-6, Swept Sine Wave method, 5g, 20 cycles in
General:
each plane, 5 to 500 Hz, 1 Octave/min. ; Amplitude = +/– 15mm; Amplitude <
+/– 15mm; Acceleration = 5g.
Designed to meet EN 60068-2-64. Test Fh: vibration, broad-band random (digital
Random:
control) and guidance. Method 1, random excitation, 5hrs in each axis, 10 to 350
Hz.
Designed to meet EN 60068-2-6. Vibration sinusoidal, 5g, 5 mins at resonant
Resonance:
points, 1 Octave/min, Swept Sine Wave 10 to 2000 Hz.
Min.
Nominal
18 V
24 – 48 V
18 V
24 – 48 V
Standard Models
Typical
Max.
Typical
(mA)
(mA)
(mA)
14
20
14
20
14
20
15
21
15
21
Max.
60 V
60 V
Backlit Models
LCD Heater
Max.
(mA)
(mA)
24
30
140
25
31
170
25
31
140
25
32
98
26
33
82
wave.
5 — SPECIFICATIONS
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