24
25
Maintenance
Periodic inspection
Calibration
Long-term storage
When the Cover or the Display is soiled, first wipe away lightly with a clean soft
cloth damped by diluted mild detergent solution and then wipe off moisture with a
dry clean soft cloth.
Inspect the following items every 3 months:
・
Make sure that the Transmitter is fixed securely.
・
Make sure that the Transmitter is not damaged.
・
Make sure that the screws of the Terminal Block are not rusted.
The SC-T4 is designed so as to make measurements stably for a long time. In
order to maintain the reliability of measurement, however, carry out calibration at
least once a year (Refer to page 10 ([5] Operation (1) Calibration)).
When the SC-T4 is not used for a prolonged period, turn off the Power Switch
and disconnect the Power Cable from the power supply prior to safekeeping.
10
Maintenance
CAUTION:
・
Do not wipe the transmitter with solvent such as Thinner.
Calibration Output
Power Supply for Sensor (12 VDC)
Signal Output (analog 4-20mA, resistance load of 300
Ω
or less)
Self-checking Relay Output (non-voltage C-contact capacity 240 VAC, 1A resistance load)
Alarm Relay Output (non-voltage C-contact capacity 240 VAC, 1A resistance load)
Detector signal input (analog 4-20mA, input resistance approx.100
Ω
)
Self-checking input
IEC 60529 / IP65 (jetproof type)
AC100
−
240V
±
10% 50/60Hz
Power supply
Dimensions
SC-T4
0.1mg/l (0-49.9mg/l), 1mg/l (50-1000mg/l)
Output
Power
consumption
Normal: 8VA or less, during washing: 16VA or less
(including detector, at the time of analog signal input/output of 20mA)
Display resolution
Input (detector)
The specifications herein are subject to change without prior notice due to improvements.
11
Specifications
12
Dimensions
[mm]
16
38
75
34
34
34
34
220
Installation pitch 186
Installation pitch 125
240
(Max. 190)
162
Installation hole
φ
9
Applicable cable
diameter
φ
6~8
Hole for
padlock
φ
7
Model No.
Main material
Operating temperature
-20 to +50
℃
, humidity 95%Rh or less (Avoid direct sunlight)
Polycarbonate
Degree of protection
HxWxD = approx.162x240x75 mm
Weight
Approx. 1.6kg (including the Mounting Bracket)
