NEW BRUNSWICK SCIENTIFIC Innova 4300, Руководство по эксплуатации

Страница: 47 / 61

35
New Brunswick Scientific User’s Guide
6
6
S
S
P
P
E
E
C
C
I
I
F
F
I
I
C
C
A
A
T
T
I
I
O
O
N
N
S
S
This chapter provides technical details of interest, but not
necessarily essential for operation of the instrument.
SHAKING
Speed
25-500 RPM
Motion 1 inch (25.4 mm) diameter circular orbit
Indication LED digital electric display, 1 RPM increments
Setpoint & Control
Digital adjustment with PI microprocessor control and instantaneous
visual feedback
Accuracy
±
1 RPM
DRIVE
Triple eccentric counterbalanced ball bearing drive.
TEMPERATURE
Range
5.0
°
C above ambient to 60
°
C
Control Stability
±
0.1
°
C by use of PI microprocessor controller and pulse width
modulation of heater
Setpoint
Digital adjustment increments within 0.1
°
C instantaneous visual
feedback
Accuracy
±
0.1
°
@ 30-40
°
C range
±
0.25
°
C for remaining range
Uniformity
Better than
±
0.25
°
C over entire range
Safety Heater shuts off if temperature exceeds operating range
Heater Low watt density resistance heater with high temperature safety
thermostat
TIMER (Shaker)
•
Programmable shaking periods from 0.1 hour to 99.9 hours by a digital timer that shuts
off at the end of period and energizes status light.
•
Timer counts down and digital display indicates remaining time. Can be deactivated for
continuous operation.
•
Additionally, unit will display total accumulated running time for service information.
AMBIENT OPERATING ENVIRONMENT
0
°
- 40
°
C, 90% humidity, non-condensing
SELF-DIAGNOSTIC STATUS
Warning signal (audible and visible) indicates when shaking speed deviates more than 5
RPM or the temperature deviates more than 1.0
°
C from setpoint and when timer operation
has expired. The audible alarm can be deactivated/activated by the operator.
REMOTE MONITORING
•
Chart recorder outputs for speed and temperature (0-5V).
•
1V per 100 RPM; 1V per 20
°
C, accuracy
±
25mV.