Liquid Level Sensor Product Specification pdf.

Liquid Level Sensor Product Specification pdf.
LIQUID LEVEL
DETECTOR
2826 & 2826FS
K Detects Non-Volatile Liquids
K For Use With Wireless Transmitters
K Microprocessor Controlled
K “C” Form Relay Contacts
K Installs Easily
K Fail Safe Version Available
2826
2826FS
APPLICATION:
The G.R.I. 2826 Detector was designed in response to a direct request for a small electronic sensor capable of
detecting non-volatile liquids in remote hard to reach locations. The sensor, in conjunction with your favorite wireless
transmitter, can be used to detect and report the encroachment of non-volatile liquids into an isolated sensitive
location.
The new 2826FS from GRI provides remote probes plus a fail safe capability. When the on board battery expends
the last of its power, 3 to 5 years under normal conditions, the 2826FS automatically places itself in a safe mode to
help prevent danger to devices, property and/or people. This safe mode keeps the zone assigned to the 2826FS in an
alarm condition. This causes an authorized person or an alarm technician to physically inspect the 2826FS and
replace the battery, prior to resetting and re-arming the system.
DESCRIPTION:
The G.R.I. 2826 Detector is an internally powered, microprocessor controlled device that samples the conductivity
between any two adjacent sensor points located on the bottom of the device. Power consumption is less than 1 microamp while in the standby mode. This allows for an extended duty cycle.
Relay contacts are latched in an open or closed position based on the conductivity measured between the sensors.
External wire connections are provided to allow access to the “C” form relay contacts for output control of an external
device.
.64
1.48
1.82
TRUE R .05
.73
1.33
.03
1.24
2826
2.82
.62
WARRANTY:
One year warranty against workmanship, material and factory defects.
GEORGE RISK INDUSTRIES, INC.
G.R.I. PLAZA
KIMBALL, NE 69145
MADE IN U.S.A.
2826FS
TOLL-FREE 1-800-445-5218
TOLL-FREE 1-800-523-1227
(308) 235-4645
FAX (308) 235-3561
E-MAIL: [email protected]
WEB SITE: www.grisk.com
LIQUID LEVEL
DETECTOR
2826 Installation Instructions:
To install the G.R.I. 2826 Detector, place the
unit where liquid is most likely to accumulate.
Clean and dry the desired placement location.
A smooth surface is preferable and preparing
surface by using an alcohol wipe is recommended. Remove protective paper from
double sided tape, then stick the unit to the
cleaned surface.
To connect the 2826 Detector wires to an external device, see the installation instructions
for that device.
Use the white and red wires for a closed loop
circuit, or the white and black wires for an open
loop circuit.
Black Wire - Normally Open
2826
Sensors
Sensors
Securing Tape
SPECIFICATIONS:
Average Duty Cycle at Manufacture
Approximately 5 years
Contact Rating
Nominal Switching Capacity
Max Switching Power
Max Switching Voltage
Max Switching Current
[email protected]
60W
220VDC
2A
Relay
2826FS
Normally Open
or
Normally Closed
Contacts to
External Device
Sensor
Probes
Sensor
Probe
+
2
Sensor
Probe
Relay
Contacts
Sensor
Sensor
N/C
COM
N/O
1
Use the relay contact terminals to connect
to external devices such as wireless transmitters or connect directly to alarm or controller systems.
White Wire - Common
1 2 3 4 5
2826FS Installation Instructions:
Mount the 2826FS Detector Relay on a wall
no more than 100 feet from desired location to be monitored. Mount the sensor
probes at locations where liquid pooling is
most likely to occur. Run probe wires from
sensor probes to the detector relay and connect wires to sensor terminals. Wire all sensor probes in parallel.
Red Wire - Normally Closed
3V
Battery
GRI #
CR2450
SPECIFICATIONS:
Probe with 36” Leads
Battery with Connector
Battery Life
GRI # 2826-P
GRI # 8444
Approximately 4 years
Contact Rating
Nominal Switching Capacity
Max Switching Power
Max Switching Voltage
Max Switching Current
Max Number Sensor Probes
Max Wire Length for Detector to Probe
[email protected]
60W
220VDC
2A
10
100 ft.
GEORGE RISK INDUSTRIES, INC.
G.R.I. PLAZA
KIMBALL, NE 69145
BA-201 Rev D 1/25/07
MADE IN U.S.A.
TOLL-FREE 1-800-445-5218
TOLL-FREE 1-800-523-1227
(308) 235-4645
FAX (308) 235-3561
E-MAIL: [email protected]
WEB SITE: www.grisk.com
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