Gems Sensors & Controls 19MR Operating Manual
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Form 229
Form 229Form 229
Sheet P/N 100346-1Sheet P/N 100346-1
Sheet P/N 100346-1
Sheet P/N 100346-1Sheet P/N 100346-1
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Installation and Operation BulletinInstallation and Operation Bulletin
Installation and Operation Bulletin
Installation and Operation BulletinInstallation and Operation Bulletin
®®
Series 19MR Controls Series 19MR Controls
Series 19MR Controls
Series 19MR Controls Series 19MR Controls
. B. B
This bulletin should be used by exper ienced personnel as a guide to the installation of series 19MR controls.
Selection or installation of equipment should always be accompanied by competent technical assistance.
We encourage you to contact Gems Sensors or its local representative if fur ther information is required.
Installation
1. Install the control in an appropiate enclosure using two size six screws.
2. Wire control per diagram, following N.E.C. and local codes. Use appropriately sized spade terminals.
For 120 VAC operation, wire the “Com/L2 to the spade lug marked “COM/L2”. Wire the 120 VAC wire to
the “120V” spade lug.
3. For 240 VAC operation, wire the “C“ Com/L2 to the spade lug marked “COM/L2”. Wire the 240 VAC wire to
the “240V” spade lug.
4. Wire the load per diagram on reverse of this page. Be sure the load is wired to the proper terminal:
120V loads wired to the “120V” ter minal and COM, 240 V loads wired to “240” ter minal and COM.
Applications
Series 19MR performs pump-up motor control for
carbonators. When the liquid level in the carbonator
falls below the low probe, Series 19MR tur ns on the
motor to pump up the liquid. The control eliminates the
need for contactors because it can handle the motor
load directly. Series 19MR provides level control in
applications for which pump-up or pump-down service is
necessary, or where the motor load must be handled
directly. Consult factor y for recommendations for
your system.
Specifications
Control Design: Open Circuit Board
Contact Design: SPST: One Normally Open (N.O.) Powered Contact
Contact Ratings: 30 Amp @ 240 VAC, Resistive
Contact Life: Mechanical- 10,000,000 Operations
Electrical- 250,000 Operations Minimum at Rated Load
Supply V oltage: 120, or 240 VAC +10% -15% 50/60 Hz
Supply Current: Relay Energized at 4.4 VA
Secondary Circuit: 11 VAC RMS Voltage on Probes. 1.5 milli-amp Current.
Sensitivity: Models Operate from 4.7K to 100K Maximum Specific Resistance
Temperature: 0° to 150°F Ambient
Terminals: Probe Connections 3/16” Spade: Line and Power Connections ¼” Space
Listings: U.L.508 Industrial Motor Controllers
Status Indicator: LED Indication for Pump Off. LED Off When Pump is On.
4 IN
3-1/2 IN
1-7/16 IN
2-7/8 IN
KEYHOLE & SLOT FOR TWO
SIZE 6 MOUNTING SCREWS
1-1/2 IN
Operation of Series 19MR Controls
Differential Service
Inverse Mode, Pump-Up: When the liquid rises to the high electrode (“H” probe), the control de-energizes
the relay. The pump turns off and the LED is off. The control remains de-energized until the liquid recedes
below the long probe (“L” probe).
Direct Mode: Pump-Down: When the liquid r ises to the high electrode (“H” probe), the control energizes
the relay. The pump turns on and the LED is on. The control remains energized unti the liquid recedes
below the long probe (“L” probe).
Single Level Service
Place jumper between the “H” and the “L” ter minals. Use terminals “G” and “H” for the probe connnections.
G
H
L
COM/L2
120V
COM/L2 120V 240V
240V
120 VAC
19MR X - X19MR X - X
19MR X - X
19MR X - X19MR X - X
Motor
Enclosure Option
00
0- None,
00
Mode of Operation
AA
A- Direct Mode; 11,000 ohms
AA
BB
B- Direct Mode: 19,000 ohms
BB
CC
C- Inverse Mode: 11,000 ohms
CC
DD
D- Inverse Mode: 19,000 ohms
DD
1 1
1- NEMA 1,
1 1
44
4- NEMA 4
44
G
H
L
COM/L2
120V
COM/L2 120V 240V
240V
240 VAC
Motor
Gems Sensors Inc.
One Cowles Road
Plainville, CT 06062-1198
Tel: 860-793-4579
Fax: 860-793-4580
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