9
61F-GP-N
@
■
Compact Plug-in Models (8-pin Type)
Specifications
Note: 1.
The length when using completely-insulated, 600-V, 3-conductor (0.75 mm
2
) cabtire cables. Usable cable lengths will become shorter as
the cable diameter or number of conductors becomes larger.
2.
The insulation resistance and dielectric strength indicate values between power terminals and Electrode terminals, between power ter-
minals and contact terminals, and between Electrode terminals and contact terminals.
3.
Possible to use with 15 k
Ω
or less, however, this may cause reset failure.
4.
61F-GP-N8H/-N8Y High-sensitivity Controllers use advanced operation.
When the power supply voltage is applied, if there are some liquids between the electrodes (ground and operation electrodes), the inter-
nal relay will not operate.
When the power supply voltage is applied, if there are no liquids between the electrodes (ground and operation electrodes), the internal
relay will operate.
If the advanced operation does not satisfy applications, consider using 61F-N8HY controller which uses sequential operation.
Item
General-purpose
Controller
61F-GP-N8
61F-GP-N8Y
(see note 4)
Long-distance
Controllers
61F-GP-N8L 2KM
(for 2 km)
61F-GP-N8L 4KM
(for 4 km)
High-sensitivity
Controllers
61F-GP-N8H
61F-GP-N8HY
(see note 4)
Low-sensitivity
Controller
61F-GP-N8D
Two-wire
Controller
61F-GP-N8R
Variable
Sensitivity
Controller
61F-GP-N8-V50
Controlling mate-
rials and operat-
ing conditions
For control of ordi-
nary purified water
or sewage water
For control of ordi-
nary purified water
in cases where the
distance between
sewage pumps and
water tanks or be-
tween receiver
tanks and supply
tanks is long or
where remote con-
trol is required.
For control of liq-
uids with high spe-
cific resistance
such as distilled
water
For control of liq-
uids with low spe-
cific resistance
such as salt water,
sewage water, acid
chemicals, alkali
chemicals
For control of ordi-
nary purified water
or sewage water
used in combina-
tion with Two-wire
Electrode Holder
(incorporating a re-
sistor of 6.8 k
Ω
)
For control of cases
where variable sen-
sitivity control is re-
quired such as
detection of froth on
the surface of a liq-
uid, control of soil
moisture content,
or detection of de-
gree of water pollu-
tion
Supply voltage
24, 100, 110, 120, 200, 220, 230 or 240 VAC; 50/60 Hz
24, 110, 220 or
240 VAC; 50/60 Hz
Operating voltage
range
85% to 110% of rated voltage
Interelectrode
voltage
8 VAC
24 VAC
8 VAC
24 VAC
Interelectrode
current
Approx. 1 mA AC max.
Approx.
0.4 mA AC max.
Approx. 1 mA AC max.
Approx. 3 mA AC
max.
Power consump-
tion
Approx. 3.5 VA max.
Interelectrode op-
erate resistance
0 to approx. 4 k
Ω
0 to 1.3 k
Ω
(for
2 km)
0 to 0.5 k
Ω
(for
4 km)
Approx. 15 k
Ω
to
approx. 70 k
Ω
(see note 3)
0 to approx. 1.3 k
Ω
0 to approx. 2 k
Ω
0 to 50 k
Ω
(Vari-
able)
Interelectrode re-
lease resistance
Approx. 15 k to
∞ Ω
4 k to
∞ Ω
(for 2 km)
2.5 k to
∞ Ω
(for 4 km)
Approx. 300 k to
∞ Ω
Approx. 4 k to
∞ Ω
Approx. 15 k to
∞ Ω
Operating resis-
tance +50 k
Ω
max.
Response time
Operate: 80 ms max.
Release: 160 ms max.
Cable length
(see note 1)
1 km max.
2 km max.
4 km max.
50 m max.
1 km max.
800 m max.
50 m max.
Control output
1 A, 250 VAC (Inductive load: cos
φ
= 0.4)
3 A, 250 VAC (Resistive load)
Ambient tempera-
ture
Operating: –10 to 55
°
C
Ambient humidity
Operating: 45% to 85% RH
Insulation resis-
tance
(see note 2)
100 M
Ω
min. (at 500 VDC)
Dielectric
strength
(see note 2)
2000 VAC, 50/60 Hz for 1 min.
Life expectancy
Electrical:
100,000 operations min.
Mechanical: 5,000,000 operations min.
Weight
Approx. 155 g
Accessories
Hold-down clip PFC-N8
Approved stan-
dards
UL508, CSA C22.2 No.14, EN61010-1, EN61326-1 Industrial electromagnetic environment
