3
4. Operation
Functional check and setting
■
■
SET:
Gently rotate the setting knob to the RESET side
until it stops. The detector is now set and the
display window turns green.
TEST:
Rotate the set dial to the TEST side to activate the
detector, and the display window turns red. Check
that the electrical contacts are operating correctly.
After testing by turning the knob between RESET and
TEST two or three times, turn it to RESET to begin
operation.
S
E
R ET
E
T
S T
RESET
TEST
5. Maintenance
CAUTION
In conjunction with the periodic inspection of
•
equipment or machinery, do a functional check at least
once a year, and a Gal response level check at least
once every three years.
Replace the detector if any abnormality is found in the
•
functional or Gal checks.
Before transporting, be sure to fasten the locking
•
screw. Otherwise vibration or shock may damage the
detector.
Gal response level check
■
■
Remove the side panel.
1.
Loosen the level adjustment nut sufficiently so that the
2.
base can be moved left and right, and remove the two
level adjustment screws.
Using the level adjustment nut as the axis of rotation,
3.
gently rotate the base clockwise and note the pointer
indication on the scale when the device is activated.
Repeat this procedure two or three times, and check that
the average reading falls within the red region of the
scale.
Handling Precautions
In this procedure, slight variations in the reading
may occur according to the adjustment of the
level at the time of installation and the zero
adjustments for the scale plate, in addition to the
way in which the base is rotated.
After the inspection has been completed, return the
4.
detector to its former state, and fasten securely.
10
20
0
10
20
0
Red region
6. Specifications
Item
Specification
General
Name
Seismic detector
Detection
method
Magnetic
External
dimensions
147×163×102.5 mm (W×H×D)
Mass
Approx. 1.6 kg
Color
Blue
Mounting
Indoor, on firm wall or pillar surface (level
for vertical mounting is provided).
Retaining screws: M6 (4)
Mounting pitch: 130×130 mm
Terminal box M3.5 terminal screws
Conduit
Dia. 15 mm, grommet with membrane
Allowable
temperature
-10 to +50 °C (no high humidity or
corrosive environments)
Performance
Sensing
direction
Horizontal and vertical
Operation
indication
By change of color in indication window:
green for Run (reset), red for Stop
(tripped out)
Setting
Set manually with setting knob
Operation
check
Manual
Acceleration
setting check
Gal response level check by tilting the
detector
Electrical
Contact form SPDT (single pole double throw)
Contact rating 125/250 Vac, 10 A with resistive load, 2 A
with motor load (power factor 0.4)
Contact
material
Silver alloy
Insulation
resistance
100 MΩ or more (500 Vdc megger)
Dielectric
strength
1500 Vac, 1 min
